CN117169785A - Method, system, electronic equipment and medium for detecting abrasion of main contact of circuit breaker - Google Patents

Abstract

A method, a system, electronic equipment and a medium for detecting abrasion of a main contact of a circuit breaker relate to the technical field of data processing. The method comprises the following steps: detecting a closing signal, judging whether a moving contact and a fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod in the middle of a coil; if yes, obtaining a displacement distance corresponding to the push rod in the middle of the coil, and calculating a difference value between the displacement distance and a preset initial distance; judging whether the difference value is larger than a preset standard change value or not; if yes, generating corresponding alarm information and sending the alarm information to the user terminal. By the scheme, the abrasion degree of the breaker contact can be detected in real time when the breaker contact operates, and the effects of rapidly and accurately detecting the abrasion condition of the breaker contact and carrying out early warning are achieved.

Description

Method, system, electronic equipment and medium for detecting abrasion of main contact of circuit breaker

Technical Field

The application relates to the technical field of circuit breaker detection, in particular to a circuit breaker main contact wear detection method, a circuit breaker main contact wear detection system, electronic equipment and a circuit breaker main contact wear detection medium.

Background

With the rapid development of the power industry, the circuit breaker is used as an important device for protecting the safety of a circuit, and the reliability and performance requirements of the circuit breaker are also higher and higher. And the critical component contacts of the circuit breaker are components that are subject to wear and degradation. In order to timely detect and evaluate the wear degree of the contact to ensure the normal operation and reliability thereof, researchers have been devoted to developing a circuit breaker contact wear detection technique.

At present, when a moving contact and a fixed contact work under high voltage of large kilovolts, the contact is easy to burn and abrade, after the moving contact and the fixed contact are used for a period of time, workers need to replace the moving contact and the fixed contact, the traditional detection method for abrasion of the contact of the circuit breaker is carried out through artificial experience judgment and manual measurement, in the judgment process, the moving contact and the fixed contact are disassembled after power failure, and then are observed by naked eyes or measured by using related instruments.

However, in practical application, the worn breaker contacts are manually and periodically measured, so that the worn condition cannot be timely found for early warning, and the problems of large time consumption and inaccurate measurement exist in the work of detecting the worn breaker contacts by workers, so that the current method for detecting the worn breaker contacts needs to be improved.

Disclosure of Invention

The application provides a method, a system, electronic equipment and a medium for detecting the abrasion of a main contact of a circuit breaker, which have the effect of rapidly detecting the abrasion of the contact of the circuit breaker and carrying out early warning.

In a first aspect, the present application provides a method for detecting wear of a main contact of a circuit breaker, including:

detecting a closing signal, judging whether a moving contact and a fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod in the middle of a coil;

if yes, acquiring a displacement distance corresponding to the push rod in the middle of the coil in real time, and calculating a difference value between the displacement distance and a preset initial distance;

judging whether the difference value is larger than a preset standard change value or not;

if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

By adopting the technical scheme, the system detects the acquired closing signal and judges whether the moving contact and the fixed contact of the circuit breaker are closed or not according to the closing signal. If the circuit breaker contact is in a closed state, the displacement distance uploaded by a displacement sensor connected to a push rod in the middle of the coil is obtained in real time, a difference value is calculated according to the displacement distance and a preset initial distance, the difference value is compared with a preset standard change value, and if the difference value is larger than the preset standard change value, corresponding alarm information is generated and sent to a user terminal, so that the abrasion degree of the circuit breaker contact can be detected and early warned quickly and accurately.

Optionally, the displacement information of the coil middle push rod is received in real time through a displacement sensor positioned at the end part of the coil middle push rod, and the displacement distance in the displacement information is extracted.

By adopting the technical scheme, the displacement information of the coil middle push rod uploaded by the displacement sensor is received in real time, then the displacement information is filtered according to the preset filtering algorithm, abnormal data in the displacement information, namely data exceeding the preset standard displacement range, the displacement distance for subsequent analysis in the displacement information is extracted, and the accuracy of processing the displacement distance is effectively improved.

Optionally, comparing the difference value with the preset standard change value, where the preset standard change value includes a preset first standard change value and a preset second standard change value; if the difference value is smaller than a preset second standard change value, judging that the moving contact and the fixed contact are in a safe working state; if the difference value is larger than a preset second standard change value and smaller than a first preset standard change value, judging that the moving contact and the fixed contact are in a state to be maintained; and if the difference value is larger than a preset first standard change value, judging that the moving contact and the fixed contact are in a dangerous state.

By adopting the technical scheme, the difference between the displacement distance and the preset initial distance is respectively compared with the preset first standard change value and the preset second standard change value, the running state of the circuit breaker contact is determined according to the comparison result, namely, the difference is smaller than the preset second standard change value and is judged to be in a safe working state, the difference is larger than the preset second standard change value and smaller than the preset first standard change value and is judged to be in a to-be-maintained state, the difference is larger than the preset first standard change value and is judged to be in a dangerous state, different abrasion degrees of the circuit breaker contact are divided, different maintenance schemes can be formulated according to the different states to arrange maintenance resources, and the working efficiency of the abrasion detection of the circuit breaker contact is improved.

Optionally, acquiring the running states of the moving contact and the fixed contact; if the running state is a safe working state, predicting the residual using times and sending the residual using times to a user; if the running state is a state to be maintained, generating the alarm information and sending the alarm information to a user; and if the running state is a dangerous state, the moving contact and the fixed contact are disconnected.

By adopting the technical scheme, when the running state of the breaker contact is the safe working state, the system predicts the residual safe running time of the breaker contact and sends the residual safe running time to a user, when the running state of the breaker contact is the state to be maintained, the system sends corresponding alarm information to the user, and when the running state of the breaker contact is the dangerous state, the system can forcedly disconnect the connection of the moving contact and the static contact, so that the efficiency of the abrasion detection work of the breaker contact can be effectively improved.

Optionally, obtaining a displacement distance and a breaker tripping frequency corresponding to the safe working state; and inputting the displacement distance and the tripping times of the circuit breaker corresponding to the safe working state into a preset times prediction model to obtain the corresponding using times of the circuit breaker, wherein the preset times prediction model is obtained by training a neural network model through the historical displacement distance and the historical tripping times of the circuit breaker.

Through adopting above-mentioned technical scheme, when the circuit breaker contact is in safe running state, the system inputs the displacement distance that obtains and circuit breaker tripping operation number of times prediction model in advance, obtains corresponding circuit breaker use number of times, and the user can be according to this circuit breaker use number of times to change or maintain the circuit breaker contact in advance, reduces the risk that the trouble takes place.

Optionally, acquiring the contact surface abrasion distance of the moving contact, wherein the contact surface abrasion distance information is uploaded in real time by an infrared range finder arranged in the middle of the contact surface of the fixed contact; and calculating the contact surface abrasion distance of the fixed contact according to the contact surface abrasion distance of the moving contact and the displacement distance corresponding to the push rod in the middle of the coil.

Through adopting above-mentioned technical scheme, the system obtains the contact surface wearing and tearing distance of moving contact through the infrared range finder of installing in the contact surface middle part of static contact, then calculates the contact surface wearing and tearing distance of static contact according to this contact surface wearing and tearing distance and the displacement distance of coil middle part push rod, can accurately obtain the wearing and tearing volume of moving contact and static contact, has improved the accuracy that the circuit breaker contact wearing and tearing detected.

Optionally, judging whether the abrasion displacement corresponding to the fixed contact and the abrasion displacement of the moving contact have abrasion displacement larger than a preset safe abrasion displacement threshold value or not; if yes, corresponding contact replacement request information is generated according to the abrasion displacement larger than a preset safe abrasion displacement threshold value and is sent to the user terminal.

By adopting the technical scheme, the system detects the abrasion displacement of the moving contact and the fixed contact, compares the abrasion displacement of the moving contact and the fixed contact with the preset safe abrasion displacement threshold value respectively, and if the contact which is larger than the preset safe abrasion displacement threshold value exists, generates the replacement request information corresponding to the contact and sends the replacement request information to the user terminal, so that the abrasion replacement work efficiency of the contact of the circuit breaker can be effectively improved.

In a second aspect of the application, a system for a method of breaker main contact wear detection is provided.

The information acquisition module is used for detecting the closing signal and judging whether the moving contact and the fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod in the middle of the coil;

the data processing module is used for acquiring the displacement distance corresponding to the push rod in the middle of the coil in real time and calculating the difference between the displacement distance and the preset initial distance;

the information early warning module is used for judging whether the difference value is larger than a preset standard change value or not; if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

In a third aspect of the application, an electronic device is provided.

A system for detecting the abrasion of a main contact of a circuit breaker comprises a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the program can be loaded and executed by the processor to realize the method for detecting the abrasion of the main contact of the circuit breaker.

In a fourth aspect of the application, a computer readable storage medium is provided.

A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to implement a method of breaker main contact wear detection.

In summary, one or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:

1. the application detects the obtained closing signal through the system and judges whether the moving contact and the fixed contact of the circuit breaker are closed or not according to the closing signal. If the circuit breaker contact is in a closed state, the displacement distance uploaded by a displacement sensor connected to a push rod in the middle of the coil is obtained in real time, a difference value is calculated according to the displacement distance and a preset initial distance, the difference value is compared with a preset standard change value, and if the difference value is larger than the preset standard change value, corresponding alarm information is generated and sent to a user terminal, so that the abrasion degree of the circuit breaker contact can be detected and early warned quickly and accurately.

2. The application achieves the effect of improving the working efficiency of detecting the abrasion of the breaker contact by dividing the running state of the breaker contact and taking corresponding measures.

3. According to the application, the obtained displacement distance and the tripping times of the circuit breaker are input into the preset times prediction model, so that the use times of safe operation are obtained, and the contact can be replaced in advance by a user, thereby achieving the effect of reducing the occurrence risk of faults.

Drawings

Fig. 1 is a schematic flow chart of a method for detecting wear of a main contact of a circuit breaker according to an embodiment of the present application.

Fig. 2 is a circuit breaker structure diagram of a circuit breaker main contact wear detection method provided by an embodiment of the application.

Fig. 3 is a schematic diagram of a state detection flow of a method for detecting wear of a main contact of a circuit breaker according to an embodiment of the present application

Fig. 4 is a schematic diagram of a system structure of a method for detecting wear of a main contact of a circuit breaker according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an electronic device according to the disclosure.

Reference numerals illustrate: 401. an information acquisition module; 402. a data processing module; 403. an information early warning module; 500. an electronic device; 501. a processor; 502. a memory; 503. a user interface; 504. a network interface; 505. a communication bus.

Detailed Description

In order that those skilled in the art will better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments.

In describing embodiments of the present application, words such as "for example" or "for example" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "such as" or "for example" in embodiments of the application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "or" for example "is intended to present related concepts in a concrete fashion.

In the description of embodiments of the application, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

In order to facilitate understanding of the method and system provided by the embodiments of the present application, a description of the background of the embodiments of the present application is provided before the description of the embodiments of the present application.

At present, when a moving contact and a fixed contact work under high voltage of large kilovolts, the contact is easy to burn and abrade, after the moving contact and the fixed contact are used for a period of time, a worker needs to replace the moving contact and the fixed contact, the existing replacement standard is judged through artificial experience judgment and manual measurement, and the whole process is long in time consumption and low in accuracy.

The embodiment of the application discloses a method for detecting the abrasion of a main contact of a circuit breaker, which comprises the steps of judging the abrasion degree of a moving contact and a fixed contact by acquiring the displacement distance of a push rod in the middle of a coil through a displacement sensor, judging the abrasion degree, and sending alarm information to a user terminal when reaching a preset standard change value, wherein the method is mainly used for solving the problems of inconvenient and inaccurate abrasion detection of the contact.

Those skilled in the art will appreciate that the problems associated with the prior art are solved by the present application, and a detailed description of a technical solution according to an embodiment of the present application is provided below, wherein the detailed description is given with reference to the accompanying drawings.

Referring to fig. 1 and 2, a method for detecting wear of a main contact of a circuit breaker includes S10 to S40, specifically including the steps of:

s10: and detecting the closing signal, judging whether the moving contact and the fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod at the middle part of the coil.

Specifically, the user can click the closing button on the terminal display screen so as to send a closing request, the system acquires a closing signal according to the closing request, the control coil generates an electric signal to push the middle push rod of the coil to generate displacement, and the middle push rod of the coil is embedded in the middle position of the coil. The port of the push rod in the middle of the coil is connected with the moving contact, and when the push rod in the middle of the coil generates displacement, the contact surface abrasion distance of the moving contact can be pushed to be closed with the fixed contact. And then the system judges whether the moving contact and the fixed contact reach a closed state or not.

The movable contact and the fixed contact are components of an electric contactor or a switch and are used for connecting and disconnecting a control circuit, and a silver sheet is arranged at the contact point of the movable contact and the fixed contact and is made of silver-containing alloy materials. The moving contact is a movable contact, typically associated with a mechanical device, such as a coil middle pushrod of an electromagnetic relay. When the moving contact contacts the stationary contact, the circuit is closed and conductivity is established. The stationary contact is a fixed contact, typically connected to an electrical device or circuit. The stationary contact provides a stable contact surface through which current can flow when the movable contact is in contact with the stationary contact.

S20: if yes, the displacement distance corresponding to the push rod in the middle of the coil is obtained in real time, and the difference between the displacement distance and the preset initial distance is calculated.

Specifically, a linear displacement sensor is mounted on the coil middle push rod, and records the position of the coil middle push rod when no external force is applied, namely, the preset initial distance. When the push rod in the middle of the coil generates displacement, the linear displacement sensor acquires displacement information corresponding to the displacement generated by the push rod in the middle of the coil in real time and stores the displacement information into a database, the database is used for storing historical displacement information of the push rod in the middle of the coil, and the system can inquire the use record of the contact according to the displacement information. If the moving contact and the fixed contact reach a closed state, the system acquires the displacement information from the database in real time, and processes the displacement information through preset filtering algorithms such as median filtering, kalman filtering, moving average filtering and the like to eliminate noise and other impurity information in the displacement information, for example, screen out data which are not in a preset standard displacement range and are generated by external force interference when the displacement sensor is abnormal or the coil middle push rod moves in the displacement information, wherein the preset standard displacement range is set by staff according to the actual working time, and the displacement distance between-10 mm and 10 mm is the displacement distance between the coil middle push rod. After the displacement information after screening is obtained, the system extracts the displacement distance corresponding to the middle push rod in the coil in the displacement information and calculates the difference value between the displacement distance and the preset initial distance, for example, the displacement distance generated by the middle push rod in the coil when the moving contact is contacted with the fixed contact is used as the preset initial distance A, the displacement distance detected by the linear displacement sensor after the circuit breaker operates is A1, and the system calculates the difference value between the preset initial distance A and the displacement distance A1 is A2.

S30: judging whether the difference value is larger than a preset standard change value or not; if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

Specifically, in order to detect whether the moving contact and the fixed contact need to be replaced, after the system calculates a difference value between a displacement distance of a push rod in the middle of the coil and a preset standard distance, the difference value is compared with a preset standard change value, wherein the preset standard change value comprises a preset second standard change value and a preset first standard change value, and the second standard change value is smaller than the first standard change value.

Referring to fig. 3, specific steps include S31 to S33:

s31: comparing the difference value with a preset standard variation value; if the difference value is smaller than the preset second standard variation value, the movable contact and the fixed contact are judged to be in a safe working state.

For further dividing the wear level of the contact, for example, a targeted maintenance measure is taken, the preset standard change value being provided with a preset first standard change value and a preset second standard change value for distinguishing the wear level of the contact. The identification process of the contact wear degree comprises the following steps: the system compares the obtained difference value between the displacement distance of the push rod in the middle of the coil and the preset standard distance with a preset first standard change value and a preset second standard change value respectively. If the difference between the displacement distance of the push rod in the middle of the coil and the preset standard distance is smaller than the preset second standard change value, the moving contact and the fixed contact are judged to be in a safe working state, namely the moving contact and the fixed contact are judged to be free from safety risks, and therefore replacement is not needed. For example the difference a between the displacement distance of the push rod in the middle of the coil and a preset standard distance. The preset standard change value is C, namely the standard of the allowable deviation of the contact in normal operation. The measured difference A is compared with the preset standard change value C, and if the difference A is smaller than C, the abrasion degree of the contact is indicated to be normal abrasion. The system sets a preset second standard change value D, which is smaller than the value C, for better insurance. The system then detects whether the difference a is smaller than a preset second standard variation value D. If the difference A is smaller than the preset second standard change value D, the contact wear degree is judged to be in the safe working range, and therefore the system judges that the contact is in the safe working state.

S32: if the difference value is larger than the preset second standard change value and smaller than the first preset standard change value, the movable contact and the fixed contact are judged to be in a state to be maintained.

Illustratively, if the difference between the displacement distance of the plunger in the middle of the coil and the preset standard distance is greater than the preset second standard variation value and less than the preset first standard variation value. For example, the system sets a preset first standard deviation B that is greater than a preset second standard deviation. If the difference a exceeds the preset second standard variation D but is smaller than the preset first standard variation B, i.e. the difference a is larger than D and smaller than B, the system cannot determine the safety state. A difference a in this range indicates that the contact value deviation starts to increase, but has not exceeded the safe operating range. At this time, the system judges that the state of the contact is changed into a state to be maintained, and the contact needs to be replaced in time so as to prevent the situation from further deteriorating.

S33: if the difference value is larger than a preset first standard variation value, the moving contact and the fixed contact are judged to be in dangerous states.

For example, if the system performs calculation and comparison through the wear degrees of the moving contact and the fixed contact, and the difference between the obtained displacement distance of the push rod in the middle of the coil and the preset standard distance exceeds the preset first standard change value, the system can judge that the moving contact and the fixed contact are in a dangerous state at present.

In a preferred embodiment of the application, the system takes different measures for different operation state systems after the operation states of the movable contact and the fixed contact are acquired. For example, when the moving and stationary contacts are in a safe operating state, the system does not take control action, at which time the moving and stationary contacts operate in a normal operating environment. The system can acquire the current, voltage and other operation parameters of the moving contact and the fixed contact in real time through the voltage sensor and other acquisition equipment during the closing period of the moving contact and the fixed contact for monitoring the contact condition, and if the operation parameters exceeding the normal operation range exist in all the operation parameters, the system can send early warning information to the staff to prompt the staff to go to and view. When the moving contact and the fixed contact are in a state to be maintained, the abrasion degree of the moving contact and the fixed contact can interfere the normal operation of the circuit breaker, and the system can check the operation parameters recently collected by the moving contact and the fixed contact and the abrasion amount of silver sheets at contact points, such as whether the sign of precursor faults such as abnormal parameter values is detected. If the contact is confirmed to be required to be maintained, the system automatically generates a corresponding alarm message. The alarm information can record the contact number, the detected abnormal parameter value and the judgment basis of the state to be maintained detected by the system in detail. Meanwhile, the system can also add an automatically generated maintenance line into the alarm information, and the replacement work of the contacts is required to be completed within a certain time. After the alarm information is generated, the system can immediately send the alarm to related users through a preset alarm channel. For example, the system sends alarm information to a mobile phone and a mailbox of a field guard in the form of a short message or a mail to remind the guard to process in time. The above flow can ensure that once the contact to-be-maintained state is detected, the system can automatically execute an alarm notification function to remind related personnel to pay attention to and carry out subsequent processing, thereby preventing greater potential safety hazards caused by neglecting alarm. When the moving contact and the fixed contact are in dangerous states, the abrasion degree of the silver sheet at the contact point of the moving contact and the fixed contact has seriously influenced the normal operation of the circuit breaker, the system can send a control command for breaking the connection between the moving contact and the fixed contact, for example, the system detects that the abrasion of the moving contact and the fixed contact causes the displacement generated by the push rod in the middle of the coil to exceed a preset first standard change value, namely the contact is likely to be about to have serious faults or is in an uncontrollable dangerous condition. The system can automatically judge the current state of the movable contact as dangerous and send the state update to the terminal of the on-duty personnel. Meanwhile, in order to avoid accidents, the system generates a control instruction and sends the control instruction to a protection device corresponding to the contact, and the closed state between the moving contact and the fixed contact is cut off, so that physical isolation is realized. At this time, the contact circuit and other adjacent circuits are disconnected, and potential damage to the system caused by dangerous contacts is avoided. Meanwhile, the system can also generate dangerous early warning information and send the dangerous early warning information to the terminal of the attendant for prompting the attendant to immediately check and repair the contact so as to restore normal operation. The processing mechanism can effectively remove dangerous conditions in time and protect the safety of the whole system and personnel.

In an alternative embodiment of the application, when the moving contact and the fixed contact are in a safe working state, the system can acquire the displacement distance of the push rod in the middle of the coil and the tripping times of the circuit breaker to predict the residual use times of the contact. For example, the system records: the displacement distance of the push rod in the middle of the coil is 2mm, tripping is accumulated for 9 times in the running process, and the system can simultaneously input two parameters of the displacement distance of 2mm and tripping for 9 times into a preset frequency prediction model, namely a trained neural network prediction model. The model is obtained through training a large number of historical coil middle push rod displacement data and comprises coil middle push rod displacement distance, breaker tripping times and safe operation residual times data under different states. After model calculation, the system predicts that the residual use times of the safe operation of the moving contact and the static contact are 8 times under the current parameter condition. The contact state can be further safely monitored by predicting the use times of the residual safe operation, and if necessary, intervention measures are adopted in advance to ensure that the whole operation is in a safe range.

In another alternative embodiment of the application, the system can acquire the contact surface abrasion distance of the moving contact uploaded in real time by the infrared range finder arranged in the middle of the contact surface of the fixed contact in real time. For example, the contact surface abrasion distance of the moving contact is 1mm. Then, the system obtains that the displacement distance of the middle push rod of the connecting line of the moving contact is 4mm. Because the displacement distance of the push rod in the middle of the coil is the total abrasion distance of the moving contact and the fixed contact, the system can calculate the abrasion distance of the contact surface of the fixed contact to be 3mm according to the relation that the abrasion distance of the contact surface of the fixed contact is the displacement of the push rod in the middle of the coil minus the abrasion distance of the contact surface of the moving contact. And then, the system respectively compares the contact surface abrasion distance of the moving contact and the contact surface abrasion distance of the static contact with a preset safe abrasion displacement threshold, for example, the preset safe abrasion distance threshold is 2mm, the static contact abrasion displacement is 3mm and is 2mm greater than the preset safe abrasion distance threshold, and the moving contact abrasion displacement is 1mm and is 2mm less than the preset safe abrasion distance threshold. And according to the comparison result, the system generates request information for replacing the fixed contact and sends the request information to the user terminal. By calculating the abrasion degrees of the movable contact and the fixed contact, the actual abrasion degree of the contact can be accurately estimated, and a basis is provided for subsequent maintenance.

The following are system embodiments of the present application that may be used to perform method embodiments of the present application. For details not disclosed in the platform embodiments of the present application, reference is made to the method embodiments of the present application.

Referring to fig. 4, a system for a method for detecting wear of a main contact of a circuit breaker according to an embodiment of the present application includes: an information acquisition module 401, a data processing module 402, and an information early warning module 403, wherein:

the information acquisition module 401 is configured to detect a closing signal, and determine whether the moving contact and the fixed contact are in a closed state according to the closing signal, where the moving contact is connected to a middle push rod of the coil;

the data processing module 402 is configured to obtain, in real time, a displacement distance corresponding to the push rod in the middle of the coil, and calculate a difference between the displacement distance and a preset initial distance;

the information early warning module 403 is configured to determine whether the difference value is greater than a preset standard change value; if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

It should be noted that: in the device provided in the above embodiment, when implementing the functions thereof, only the division of the above functional modules is used as an example, in practical application, the above functional allocation may be implemented by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to implement all or part of the functions described above. In addition, the embodiments of the apparatus and the method provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the embodiments of the method are detailed in the method embodiments, which are not repeated herein.

The application also discloses electronic equipment. Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 500 may include: at least one processor 501, at least one network interface 504, a user interface 503, a memory 502, at least one communication bus 505.

Wherein a communication bus 505 is used to enable the connected communication between these components.

The user interface 503 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 503 may further include a standard wired interface and a standard wireless interface.

The network interface 504 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.

Wherein the processor 501 may include one or more processing cores. The processor 501 utilizes various interfaces and lines to connect various portions of the overall server, perform various functions of the server and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 502, and invoking data stored in the memory 502. Alternatively, the processor 501 may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 501 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface diagram, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 501 and may be implemented by a single chip.

The Memory 502 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 502 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 502 may be used to store instructions, programs, code sets, or instruction sets. The memory 502 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described various method embodiments, etc.; the storage data area may store data or the like involved in the above respective method embodiments. The memory 502 may also optionally be at least one storage device located remotely from the processor 501. Referring to fig. 5, an operating system, a network communication module, a user interface module, and an application program of a circuit breaker main contact wear detection method may be included in a memory 502 as a computer storage medium.

In the electronic device 500 shown in fig. 5, the user interface 503 is mainly used for providing an input interface for a user, and acquiring data input by the user; and processor 501 may be configured to invoke an application program in memory 502 that stores a nutrition literature model training method, which when executed by one or more processors 501, causes electronic device 500 to perform the method as in one or more of the embodiments described above. It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all of the preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as a division of units, merely a division of logic functions, and there may be additional divisions in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in whole or in part in the form of a software product stored in a memory, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present application. And the aforementioned memory includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a magnetic disk or an optical disk.

The above are merely exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure.

This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with the scope and spirit of the disclosure being indicated by the claims.

Claims (10)

1. The method for detecting the abrasion of the main contact of the circuit breaker is characterized by comprising the following steps of:

detecting a closing signal, judging whether a moving contact and a fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod in the middle of a coil;

if yes, obtaining a displacement distance corresponding to the push rod in the middle of the coil, and calculating a difference value between the displacement distance and a preset initial distance;

judging whether the difference value is larger than a preset standard change value or not;

if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

2. The method for detecting the wear of the main contact of the circuit breaker according to claim 1, wherein the step of acquiring the displacement distance corresponding to the push rod in the middle of the coil in real time comprises the following steps:

and receiving the displacement information of the push rod in the middle of the coil in real time through a displacement sensor positioned at the end part of the push rod in the middle of the coil, and extracting the displacement distance in the displacement information.

3. The method according to claim 1, wherein the determining whether the difference is greater than a preset standard change value comprises:

comparing the difference value with the preset standard change value, wherein the preset standard change value comprises a preset first standard change value and a preset second standard change value;

if the difference value is smaller than a preset second standard change value, judging that the moving contact and the fixed contact are in a safe working state;

if the difference value is larger than a preset second standard change value and smaller than a first preset standard change value, judging that the moving contact and the fixed contact are in a state to be maintained;

and if the difference value is larger than a preset first standard change value, judging that the moving contact and the fixed contact are in a dangerous state.

4. The method for detecting wear of a main contact of a circuit breaker according to claim 3, further comprising, after the operation states of the moving contact and the fixed contact are obtained:

acquiring the running states of the moving contact and the fixed contact;

if the running state is a safe working state, predicting the residual using times and sending the residual using times to a user;

if the running state is a state to be maintained, generating the alarm information and sending the alarm information to a user;

and if the running state is a dangerous state, the moving contact and the fixed contact are disconnected.

5. The method for detecting wear of a main contact of a circuit breaker according to claim 4, wherein the estimated safe operation time period includes:

acquiring a displacement distance and the tripping times of the circuit breaker corresponding to the safe working state;

and inputting the displacement distance and the tripping times of the circuit breaker corresponding to the safe working state into a preset times prediction model to obtain the corresponding using times of the circuit breaker, wherein the preset times prediction model is obtained by training a neural network model through the historical displacement distance and the historical tripping times of the circuit breaker.

6. The method for detecting wear of a main contact of a circuit breaker according to claim 1, wherein after generating the corresponding alarm information and transmitting the alarm information to the user terminal, further comprises:

acquiring the contact surface abrasion distance of the moving contact, wherein the contact surface abrasion distance information is uploaded in real time by an infrared range finder arranged in the middle of the contact surface of the fixed contact;

and calculating the contact surface abrasion distance of the fixed contact according to the contact surface abrasion distance of the moving contact and the displacement distance corresponding to the push rod in the middle of the coil.

7. The method for detecting wear of a main contact of a circuit breaker according to claim 6, further comprising, after said calculating said wear displacement:

judging whether contact surface abrasion distance larger than a preset safe abrasion distance threshold exists in the contact surface abrasion distance of the fixed contact and the contact surface abrasion distance of the moving contact;

if yes, corresponding contact replacement request information is generated according to the contact surface abrasion distance which is larger than a preset safe abrasion displacement threshold value and is sent to the user terminal.

8. A system based on the breaker main contact wear detection method of claims 1-7, characterized in that the system comprises:

the information acquisition module (401) is used for detecting a closing signal and judging whether the moving contact and the fixed contact are in a closed state according to the closing signal, wherein the moving contact is connected with a push rod in the middle of the coil;

the data processing module (402) is used for acquiring the displacement distance corresponding to the push rod in the middle of the coil in real time, and calculating the difference between the displacement distance and the preset initial distance;

the information early warning module (403) is used for judging whether the difference value is larger than a preset standard change value; if yes, generating corresponding alarm information and sending the alarm information to the user terminal.

9. An electronic device comprising a processor (501), a memory (502), a user interface (503) and a network interface (504), the memory (502) being configured to store instructions, the user interface (503) and the network interface (504) being configured to communicate with other devices, the processor (501) being configured to execute the instructions stored in the memory (502) to cause the electronic device (500) to perform a circuit breaker main contact wear detection method according to any one of claims 1-7.

10. A computer readable storage medium storing instructions which, when executed, perform a circuit breaker main contact wear detection method step of any one of claims 1-7.