CN117765473A - Switch switching checking method based on image recognition - Google Patents
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Abstract
The invention relates to the technical field of switching and switching, in particular to a switching and switching checking method based on image recognition, which comprises the following steps: acquiring a target switching switch action signal based on the SCADA system and matching video image information; performing image recognition on the target switching switch based on the video image information to acquire first state information of the target switching switch; carrying out infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch; acquiring associated line information of a target switching switch, and acquiring third state information of the target switching switch; cross-verifying based on the deflection switching state information, the first state information, the second state information and the third state information of the target switching switch to obtain a verification result; and evaluating the verification result, and outputting alarm prompt information if the verification result is abnormal. The method aims at solving the problems of low accuracy of remote judgment switching operation and more manual intervention links.
Description
Technical Field
The invention relates to the technical field of switching and switching, in particular to a switching and switching checking method based on image recognition.
Background
In the SCADA power supply scheduling system, remote switch switching operation is an important link. Along with the gradual unattended operation of a substation along a railway, the substation is not provided with an attendant, and a power supply dispatcher relies on an SCADA system to acquire the switching state after the switch is shifted to perform switching operation. Therefore, it is required to improve the accuracy and safety of the switching operation of the switch.
At present, when the actual state of a switching switch cannot be judged in the prior art, a power supply dispatcher usually checks and verifies one by one according to the linkage video of the switching signal of the switching switch, the problem that the accuracy is difficult to judge still exists when the checking and verifying are performed by using the method, and the intervention of the power supply dispatcher is needed in a plurality of links in the whole process, so that the problems of discontinuous switching operation, incomplete event records and difficult backtracking and rechecking are caused.
Disclosure of Invention
The invention aims to provide a switching-off checking method based on image recognition, which is used for solving the problems of low switching-off operation accuracy and more manual intervention links in remote judgment.
The invention provides a switching-off checking method based on image recognition, which comprises the following steps:
acquiring a target switching switch action signal based on the SCADA system, and matching video image information according to the target switching switch action signal;
performing image recognition on the target switching switch based on the video image information to acquire first state information of the target switching switch;
carrying out infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch;
acquiring associated line information of a target switching switch, and acquiring third state information of the target switching switch;
cross-verifying based on the deflection switching state information, the first state information, the second state information and the third state information of the target switching switch to obtain a verification result;
and evaluating the verification result, outputting alarm prompt information if the verification result is abnormal, and tracing the switching process of the target switching switch.
Further, the method for acquiring the target switching switch action signal based on the SCADA system and matching the video image information according to the target switching switch action signal comprises the following steps:
initiating remote switching operation on a target switching switch based on the SCADA system, opening switching-on and switching-off actions of the target switching switch, and acquiring a target switching switch action signal after the target switching switch action is completed;
and calling a double-spectrum camera device based on the target switching switch action signal, and acquiring video image information of the target switching switch from multiple directions and multiple angles.
Further, image recognition is performed on the target switching switch based on the video image information, and first state information of the target switching switch is obtained, including:
the on-off state of the target switching switch is identified based on the video image information, and image information related to the on-off state of the target switching switch is stored.
Further, performing infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch, including:
the dual-spectrum camera device detects the contact and the loop of the target switching switch by adopting infrared thermal imaging, judges whether the target switching switch has a target abnormal phenomenon or not, and obtains second state information according to the target abnormal phenomenon.
Further, the target abnormal phenomenon at least comprises high-voltage arc, electric spark and abnormal heating.
Further, acquiring the associated line information of the target switching switch, and acquiring the third state information of the target switching switch, including:
acquiring current and voltage information of the relevant lines before and after the target switching action to obtain current variation and voltage variation of the relevant lines before and after the target switching action;
and comparing the current variation and the voltage variation with a preset current variation threshold and a preset voltage variation threshold to obtain third state information of the target switching switch.
Further, cross-verifying is performed based on the shift switching state information, the first state information, the second state information and the third state information of the target switching switch, and a verification result is obtained, including:
and (3) performing verification on the action of the target switching switch: verifying based on the position change switching state information and the first state information of the target switching switch; if the position change switching state information of the target switching switch is consistent with the first state information, outputting the correct execution of the target switching switch action; if the shift switching state information of the target switching switch is inconsistent with the first state information, the output target switching switch action is not executed correctly.
Further, cross-verifying is performed based on the shift switching state information, the first state information, the second state information and the third state information of the target switching switch, and a verification result is obtained, and the method further comprises the following steps:
physical state verification of a target switching switch: verifying based on the first state information and the second state information of the target switching switch; if the second state information of the target switching switch under the first state information is abnormal, outputting the physical state abnormality of the target switching switch; if the second state information of the target switching switch in the first state is not abnormal, outputting that the physical state of the target switching switch is normal.
Further, cross-verifying is performed based on the shift switching state information, the first state information, the second state information and the third state information of the target switching switch, and a verification result is obtained, and the method further comprises the following steps:
and (3) verifying the validity of the target switching switch: verifying based on the second state information and the third state information of the target switching switch; if the second state information or the third state information of the target switching switch is abnormal, outputting that the action of the target switching switch is invalid; if the second state information and the third state information of the target switching switch are not abnormal, the output target switching switch is effective.
Further, cross-verifying is performed based on the shift switching state information, the first state information, the second state information and the third state information of the target switching switch, and a verification result is obtained, and the method further comprises the following steps:
and (3) verifying the credibility of the target switching switch: verifying based on the position change switching state information and the third state information of the target switching switch; if the third state information of the target switching switch in the displacement switching state information is abnormal, the displacement switching state information of the target switching switch is output.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
the switch switching checking method based on image recognition can be applied to unattended substations, and the state judgment and comprehensive comparison checking of the target switching switch are realized by matching and cross-checking the first state information obtained by utilizing video image recognition, the second state information obtained by infrared thermal imaging detection and the third state information obtained by related line information with the deflection switching state information of the target switching switch, so that the accuracy of switching operation judgment is improved, the manual intervention of a power supply dispatcher is reduced, the automation degree of switching operation is improved, and the error judgment caused by human factors is reduced; on the other hand, the operation of current switch switching process exists the discontinuity, and this application is through automatic switching operation discernment, can complete record switching event's process to can trace back the whole switching process of target switching switch after obtaining the verification result of target switching switch, and then seek out the problem fast.
Drawings
Fig. 1 is a schematic flow chart of a switching verification method based on image recognition according to an embodiment of the present invention;
fig. 2 is a schematic overall flow chart of a switching verification method based on image recognition according to an embodiment of the present invention;
fig. 3 is a schematic diagram of cross-validation provided by an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It will be appreciated that "system," "apparatus," "unit" and/or "module" as used herein is one method for distinguishing between different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
As used in this specification and the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
A flowchart is used in this specification to describe the operations performed by the system according to embodiments of the present specification. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
Referring to fig. 1 to 3, the invention provides a switching verification method based on image recognition, which comprises the following steps:
step S100: acquiring a target switching switch action signal based on the SCADA system, and matching video image information according to the target switching switch action signal;
the step S100 specifically includes:
step S110: initiating remote switching operation on a target switching switch based on the SCADA system, opening switching-on and switching-off actions of the target switching switch, and acquiring a target switching switch action signal after the target switching switch action is completed; specifically, in the SCADA system, a switching instruction can be sent to a target switching switch through programming or using an existing control interface to trigger the switching-on and switching-off actions of the target switching switch; monitoring the state change of the target switching switch, and acquiring an action signal of the target switching switch after the switching action is completed;
step S120: invoking a double-spectrum camera device based on a target switching switch action signal, and acquiring video image information of the target switching switch from multiple directions and multiple angles; specifically, the dual-spectrum imaging device can trigger according to the action signal of the target switching switch, and shoot video image information of the target switching switch from a plurality of directions and a plurality of angles; the dual-spectrum camera device needs to be preset and calibrated to ensure that various states of a target switching switch can be accurately captured in the switching process; the double-spectrum camera device acquires video image information of the target switching switch from a plurality of directions and a plurality of angles, so that the accuracy of identifying the switching switch state image can be improved.
Step S200: performing image recognition on the target switching switch based on the video image information to acquire first state information of the target switching switch;
the step S200 specifically includes:
step S210: identifying the on-off state of the target switching switch based on the video image information, and storing image information related to the on-off state of the target switching switch; specifically, the video image information can be processed by adopting an image recognition algorithm, so that the automatic recognition of the target switching state is realized, and the requirement of manual intervention is reduced; the image information related to the target switching switch is specifically the image information capable of displaying the switching state and the switching state of the target switching switch, and the subsequent data analysis and check backtracking are facilitated by storing the image information;
step S300: carrying out infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch;
the step S300 specifically includes:
step S310: the double-spectrum camera device adopts infrared thermal imaging to detect the contact and the loop of the target switching switch, judges whether the target switching switch has a target abnormal phenomenon or not, and obtains second state information according to the target abnormal phenomenon; the target abnormal phenomenon at least comprises high-voltage arc, electric spark and abnormal heating;
specifically, infrared thermal imaging detection is performed through a double-spectrum imaging device, the device can capture infrared thermal imaging information of a target switching switch, and through analysis and processing of the infrared thermal imaging information, contacts and loops of the target switching switch and possible abnormal phenomena are identified; further, using image processing and analysis algorithm to detect hot spot and analyze temperature distribution of the infrared thermal imaging information so as to judge whether the target switching switch has abnormal phenomena such as high-voltage arc, electric spark and abnormal heating; furthermore, whether the target switching switch has abnormal faults such as insufficient switching action, virtual connection, short circuit, disconnection and the like can be judged through the abnormal phenomena; for example, when the switching is not in place, poor contact or abnormal heat generation of the contacts may be caused, and abnormal temperature distribution or hot spots are displayed in the infrared thermal imaging image; as another example, short circuits and open circuits typically result in abnormal currents, local overloads, or local abnormal heating, which can also be reflected in the infrared thermographic image; in this embodiment, by using infrared thermal imaging detection, it is possible to help discover possible abnormal phenomena of the target switching switch, such as high-voltage arc, electric spark, abnormal heating, etc., in advance, which is helpful for preventing potential faults and potential safety hazards.
Step S400: acquiring associated line information of a target switching switch, and acquiring third state information of the target switching switch;
the step S400 specifically includes:
step S410: acquiring current and voltage information of the relevant lines before and after the target switching action to obtain current variation and voltage variation of the relevant lines before and after the target switching action; the associated lines of the target switching switch are specifically power lines directly related to the switching switch, and the lines can be incoming lines, outgoing lines, branches and other equipment lines connected with the switching switch; the current and voltage information can be acquired through a current transformer and a voltage transformer, and the current variation and the voltage variation of the relevant lines before and after the target switching action can be obtained through acquiring and recording the current and voltage information before and after the target switching action;
step S420: comparing the current variation and the voltage variation with a preset current variation threshold and a preset voltage variation threshold to obtain third state information of the target switching switch; specifically, the possible fault type or abnormal state of the target switching switch can be judged according to the current variation and the voltage variation, for example, when the current variation exceeds a preset threshold value, overload condition of a line or equipment can be indicated, and at the moment, the switching operation of the target switching switch can have a problem; for another example, if the current and voltage of the related circuit of the target switching switch are unchanged or change less before and after switching, the target switching switch may have a switching failure problem; therefore, proper thresholds and algorithms can be set according to actual demands, and automatic identification and classification of different fault types can be realized.
Step S500: cross-verifying based on the deflection switching state information, the first state information, the second state information and the third state information of the target switching switch to obtain a verification result;
the step S500 specifically includes:
step S510: and (3) performing verification on the action of the target switching switch: verifying based on the position change switching state information and the first state information of the target switching switch; if the position change switching state information of the target switching switch is consistent with the first state information, outputting the correct execution of the target switching switch action; if the position change switching state information of the target switching switch is inconsistent with the first state information, outputting that the action of the target switching switch is not executed correctly; specifically, for example, the shift switching state of the target switching switch is on, but the first state information is off (obtained through image recognition), which indicates that the switching operation of the target switching switch may not be performed correctly; if the first state information and the shift switching state information obtained through image recognition are all the same, the switching operation of the target switching switch is correctly executed.
Step S520: physical state verification of a target switching switch: verifying based on the first state information and the second state information of the target switching switch; if the second state information of the target switching switch under the first state information is abnormal, outputting the physical state abnormality of the target switching switch; if the second state information of the target switching switch in the first state is not abnormal, outputting that the physical state of the target switching switch is normal; specifically, the physical state of the target switching switch is whether the switching switch is in place or not; for example, the result of the first state information is a split, and if the second state information has abnormality (infrared thermal imaging detection result) such as high-voltage arc, temperature rise and the like, it is indicated that the target switching switch may be in a state of not being split at the moment, and the physical state of the target switching switch is abnormal; if the result of the first state information is that the second state information is abnormal, the physical state of the output target switching switch is normal.
Step S530: and (3) verifying the validity of the target switching switch: verifying based on the second state information and the third state information of the target switching switch; if the second state information or the third state information of the target switching switch is abnormal, outputting that the action of the target switching switch is invalid; if the second state information and the third state information of the target switching switch are not abnormal, outputting that the target switching switch acts effectively; specifically, the effectiveness of the target switching switch is specific to whether the switching of the switching switch achieves an effect or not; for example, if the second state information has an abnormal phenomenon of spark and temperature rise and the third state information has an abnormality (current and voltage fluctuation of the related line), it is indicated that the target switching switch may be in a virtual connection state, and the on-off state of the output target switching switch is invalid; if the first state information and the second state information are abnormal, the switching-on and switching-off states of the output target switching-off switch are effective;
step S540: and (3) verifying the credibility of the target switching switch: verifying based on the position change switching state information and the third state information of the target switching switch; if the third state information of the target switching switch under the displacement switching state information is abnormal, outputting the displacement switching state information of the target switching switch with errors; specifically, the reliability specifically refers to the reliability of the position-changing switching state information of the target switching switch; for example, the shift switching state information of the target switching switch is a switching state, and when the third state information at this time indicates that the current and the voltage on the associated line are basically unchanged or have smaller changes, it indicates that the shift switching state information of the target switching switch may be wrong, and at this time, the reliability of the shift switching state information of the output target switching switch is lower or unreliable;
step S600: evaluating the verification result, outputting alarm prompt information if the verification result is abnormal, and tracing the switching process of the target switching switch; specifically, through the execution verification, the reliability verification, the validity verification and the physical state verification aiming at the action of the target switching switch, whether the switching operation of the target switching switch is effective or not and whether the switching operation is normal or not can be judged from multiple aspects; namely, the system can be configured to output that the switching-off result of the target switching-off switch meets the expectations when the action execution verification result, the credibility verification result, the validity verification result and the physical state verification result are all normal, and the target switching-off switch Guan Daozha can be prompted by voice at the moment; if any one or more results of the action execution verification result, the credibility verification result, the validity verification result and the physical state verification result are abnormal, an alarm prompt can be sent out in a sound-light alarm mode, a voice alarm mode and the like, at the moment, a power supply dispatcher can rapidly confirm switching abnormal information according to the abnormal information, and carry out event backtracking and rechecking on the abnormal event; therefore, the effectiveness and the normal performance of the switching operation can be more comprehensively judged by comprehensively evaluating the results of the actions of the target switching switch in multiple aspects such as verification, reliability verification, validity verification, physical state verification and the like, and the safety and the reliability of the switching operation are improved; on the other hand, when the verification result is abnormal, the system can timely output alarm prompt information, quickly respond to abnormal conditions, reduce potential safety risks, and simultaneously trace back the switching process and record all links and state information of switching operation.
In summary, the switch switching checking method based on image recognition provided by the invention can be applied to an unattended substation, and the state judgment and comprehensive comparison checking of the target switching switch are realized by matching and cross-checking the first state information obtained by video image recognition, the second state information obtained by infrared thermal imaging detection and the third state information obtained by related line information with the deflection switching state information of the target switching switch, so that the accuracy of switching operation judgment is improved, the manual intervention of a power supply dispatcher is reduced, the automation degree of switching operation is improved, and the error judgment caused by human factors is reduced; on the other hand, the operation of current switch switching process exists the discontinuity, and this application is through automatic switching operation discernment, can complete record switching event's process to can trace back the whole switching process of target switching switch after obtaining the verification result of target switching switch, and then seek out the problem fast.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations to the present disclosure may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and therefore, such modifications, improvements, and modifications are intended to be included within the spirit and scope of the exemplary embodiments of the present invention.
Meanwhile, the specification uses specific words to describe the embodiments of the specification. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present description. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present description may be combined as suitable.
Furthermore, the order in which the elements and sequences are processed, the use of numerical letters, or other designations in the description are not intended to limit the order in which the processes and methods of the description are performed unless explicitly recited in the claims. While certain presently useful inventive embodiments have been discussed in the foregoing disclosure, by way of various examples, it is to be understood that such details are merely illustrative and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements included within the spirit and scope of the embodiments of the present disclosure. For example, while the system components described above may be implemented by hardware devices, they may also be implemented solely by software solutions, such as installing the described system on an existing server or mobile device.
Likewise, it should be noted that in order to simplify the presentation disclosed in this specification and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the present description. Indeed, less than all of the features of a single embodiment disclosed above.
Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments of this specification. Other variations are possible within the scope of this description. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present specification may be considered as consistent with the teachings of the present specification. Accordingly, the embodiments of the present specification are not limited to only the embodiments explicitly described and depicted in the present specification.
Claims (10)
1. The switching-off checking method based on image recognition is characterized by comprising the following steps of:
acquiring a target switching switch action signal based on the SCADA system, and matching video image information according to the target switching switch action signal;
performing image recognition on the target switching switch based on the video image information to acquire first state information of the target switching switch;
carrying out infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch;
acquiring associated line information of a target switching switch, and acquiring third state information of the target switching switch;
cross-verifying based on the deflection switching state information, the first state information, the second state information and the third state information of the target switching switch to obtain a verification result;
and evaluating the verification result, outputting alarm prompt information if the verification result is abnormal, and tracing the switching process of the target switching switch.
2. The switching-off checking method based on image recognition according to claim 1, wherein the step of acquiring a target switching-off switching action signal based on the SCADA system and matching video image information according to the target switching-off switching action signal comprises:
initiating remote switching operation on a target switching switch based on the SCADA system, opening switching-on and switching-off actions of the target switching switch, and acquiring a target switching switch action signal after the target switching switch action is completed;
and calling a double-spectrum camera device based on the target switching switch action signal, and acquiring video image information of the target switching switch from multiple directions and multiple angles.
3. The image recognition-based switch switching check method as set forth in claim 2, wherein performing image recognition on the target switching switch based on the video image information to obtain the first state information of the target switching switch, includes:
the on-off state of the target switching switch is identified based on the video image information, and image information related to the on-off state of the target switching switch is stored.
4. The image recognition-based switch switching check method as set forth in claim 2, wherein the performing infrared thermal imaging detection on the target switching switch to obtain second state information of the target switching switch includes:
the dual-spectrum camera device detects the contact and the loop of the target switching switch by adopting infrared thermal imaging, judges whether the target switching switch has a target abnormal phenomenon or not, and obtains second state information according to the target abnormal phenomenon.
5. The switching-off checking method based on image recognition according to claim 4, wherein the target abnormal phenomenon at least comprises high-voltage arc, spark, abnormal heat.
6. The switching-off checking method based on image recognition according to claim 1, wherein acquiring the associated line information of the target switching-off switch, and acquiring the third state information of the target switching-off switch, comprises:
acquiring current and voltage information of the relevant lines before and after the target switching action to obtain current variation and voltage variation of the relevant lines before and after the target switching action;
and comparing the current variation and the voltage variation with a preset current variation threshold and a preset voltage variation threshold to obtain third state information of the target switching switch.
7. The switching-off checking method based on image recognition according to any one of claims 1 to 6, wherein cross-verifying based on shift switching state information, first state information, second state information, third state information of a target switching-off switch, obtaining a verification result, comprises:
and (3) performing verification on the action of the target switching switch: verifying based on the position change switching state information and the first state information of the target switching switch; if the position change switching state information of the target switching switch is consistent with the first state information, outputting the correct execution of the target switching switch action; if the shift switching state information of the target switching switch is inconsistent with the first state information, the output target switching switch action is not executed correctly.
8. The switching verification method based on image recognition according to claim 7, wherein cross verification is performed based on shift switching state information, first state information, second state information, and third state information of a target switching switch, and a verification result is obtained, further comprising:
physical state verification of a target switching switch: verifying based on the first state information and the second state information of the target switching switch; if the second state information of the target switching switch under the first state information is abnormal, outputting the physical state abnormality of the target switching switch; if the second state information of the target switching switch in the first state is not abnormal, outputting that the physical state of the target switching switch is normal.
9. The switching verification method based on image recognition according to claim 8, wherein cross verification is performed based on shift switching state information, first state information, second state information, and third state information of a target switching switch, and a verification result is obtained, further comprising:
and (3) verifying the validity of the target switching switch: verifying based on the second state information and the third state information of the target switching switch; if the second state information or the third state information of the target switching switch is abnormal, outputting that the action of the target switching switch is invalid; if the second state information and the third state information of the target switching switch are not abnormal, the output target switching switch is effective.
10. The switching verification method based on image recognition according to claim 9, wherein cross verification is performed based on shift switching state information, first state information, second state information, and third state information of a target switching switch, and a verification result is obtained, further comprising:
and (3) verifying the credibility of the target switching switch: verifying based on the position change switching state information and the third state information of the target switching switch; if the third state information of the target switching switch in the displacement switching state information is abnormal, the displacement switching state information of the target switching switch is output.
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