CN116306445B - Anti-electromagnetic interference method of key circuit for intelligent door lock - Google Patents
Anti-electromagnetic interference method of key circuit for intelligent door lock Download PDFInfo
- Publication number
- CN116306445B CN116306445B CN202310523558.7A CN202310523558A CN116306445B CN 116306445 B CN116306445 B CN 116306445B CN 202310523558 A CN202310523558 A CN 202310523558A CN 116306445 B CN116306445 B CN 116306445B
- Authority
- CN
- China
- Prior art keywords
- circuit
- door lock
- key circuit
- intelligent door
- analysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Lock And Its Accessories (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides an anti-electromagnetic interference method of a key circuit for an intelligent door lock, which comprises the following steps: establishing a design model aiming at a key circuit in the intelligent door lock by adopting a finite element analysis method to obtain a circuit simulation design model, and carrying out discretization solving and analysis aiming at the circuit simulation design model to obtain a circuit finite element analysis result; performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, determining electromagnetic generation conditions in the intelligent door lock key circuit, and obtaining the magnetic field shielding effectiveness of the intelligent door lock key circuit according to the electromagnetic generation conditions in the intelligent door lock key circuit; and converting the magnetic field shielding effectiveness of the intelligent door lock key circuit into a shielding factory effect diagram, and analyzing and determining interference measures of the key circuit aiming at the shielding factory effect diagram. The invention solves the problem of poor anti-interference effect, improves the anti-interference effect and ensures the reliability of anti-interference.
Description
Technical Field
The invention relates to the technical field of intelligent door locks, in particular to an electromagnetic interference resistance method of a key circuit for an intelligent door lock.
Background
The intelligent door lock uses electromagnet or miniature motor and lock body as executing body, and uses electronic technology and integrated circuit design piece to combine with Internet technology to lock the door so as to prevent others from opening the door. Electromagnetic interference (EMI, in english: electroMagnetic Interference) refers to any electromagnetic phenomenon that is generated by conduction or electromagnetic field with voltage or current, and can reduce the performance of a device, equipment or system, or can adversely affect living things or substances. If electromagnetic interference is not properly processed in the process of designing, manufacturing, installing and using the intelligent door lock, insufficient electromagnetic radiation and weak anti-interference capability can be caused, the use of the intelligent door lock is affected, and the intelligent door lock is enabled to break down, so that the intelligent door lock is required to be subjected to anti-electromagnetic interference processing, but most interference signals can be filtered in the existing anti-electromagnetic interference processing, but interference signals close to power frequency components cannot be filtered, so that harmonic components still exist in the signals.
Disclosure of Invention
The invention aims to provide an anti-electromagnetic interference method of a key circuit for an intelligent door lock, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: an anti-electromagnetic interference method of a key circuit for an intelligent door lock comprises the following steps:
establishing a design model aiming at a key circuit in the intelligent door lock by adopting a finite element analysis method to obtain a circuit simulation design model, and carrying out discretization solving and analysis aiming at the circuit simulation design model to obtain a circuit finite element analysis result;
performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, determining electromagnetic generation conditions in the intelligent door lock key circuit, and obtaining the magnetic field shielding effectiveness of the intelligent door lock key circuit according to the electromagnetic generation conditions in the intelligent door lock key circuit;
and converting the magnetic field shielding effectiveness of the intelligent door lock key circuit into a shielding factory effect diagram, and analyzing and determining interference measures of the key circuit aiming at the shielding factory effect diagram.
Further, the method adopts a finite element analysis method to build a design model for a key circuit in the intelligent door lock to obtain a circuit simulation design model, and adopts ANSYS to carry out simulation when discrete solving and analyzing are carried out for the circuit simulation design model to obtain a circuit finite element analysis result, wherein the ANSYS comprises: the device comprises a preprocessing module, an analysis and calculation module and a post-processing module;
the preprocessing module is used for establishing and dividing a model aiming at a key circuit in the intelligent door lock to obtain a circuit simulation design model and a circuit division result;
the analysis and calculation module is used for carrying out simulation on the circuit simulation design model according to the circuit division result, analyzing electromagnetic field analysis of the electromagnetic field in the circuit and obtaining analysis and calculation data;
the post-processing module is used for converting the analysis and calculation data into a chart form through data processing.
Further, the preprocessing module includes: the model building unit and the grid dividing unit;
the model building unit is used for building a model for a key circuit in the intelligent door lock, taking the key circuit in the intelligent door lock as an analyzed object, acquiring construction information of the key circuit in the intelligent door lock, building a simulation circuit according to the construction information of the key circuit, and re-engraving the key circuit to obtain a circuit simulation design model;
the grid dividing unit is used for discretizing the circuit simulation design model, dividing the circuit simulation design model, acquiring the functions of the electronic components in the key circuit, obtaining the attribute information of the electronic components, dividing the circuit simulation design model into a plurality of units according to the attribute information of the electronic components, and obtaining a circuit dividing result.
Further, when the model building unit builds the analog circuit according to the construction information of the key circuit, the model building unit performs parameter setting and port configuration according to the key circuit, wherein the parameter setting includes: and designating frequency and boundary conditions, wherein the designated frequency and boundary conditions are determined according to the functions of the intelligent door lock, and the port configuration is carried out according to the existence relation of the key circuit in the intelligent door lock and the port excitation is allocated.
Further, the analysis and calculation module, when obtaining analysis and calculation data, includes:
performing key circuit simulation in a circuit simulation design model to obtain simulation data information of a key circuit in an initial state and obtain initial circuit data;
according to the use condition of the key circuit when the intelligent door lock is applied, simulation is carried out in a circuit simulation design model, and the use condition is respectively simulated in the circuit simulation design model to obtain simulation data of a plurality of groups of circuit simulation design models;
dividing initial circuit data and simulation analog data into a plurality of parts according to a circuit dividing result, respectively carrying out electromagnetic analysis in each part, and clearly determining the part with electromagnetic change and the electromagnetic change condition to obtain an analysis result;
and data arrangement is carried out on the analysis result, and the analysis and calculation optimization result is optimized to obtain analysis and calculation data.
Further, the analyzing the calculated data includes: optimizing results and analyzing results, and when the post-processing module converts analyzing calculation data into a chart form through data processing, the post-processing module comprises the following steps:
the analysis result sorting data are integrally converted, the analysis result sorting data are integrally sorted according to the key circuit, analysis result data under various conditions are obtained, and then an integral view is built by taking condition changes as variables, so that a first chart is obtained;
performing local conversion on analysis result arrangement data, combing the analysis result arrangement data according to a circuit division result of the key circuit by taking a part as a unit to obtain analysis result data of each part, and constructing a part view in each part according to the analysis result data of each part to obtain a plurality of second charts;
analyzing the relation between the first chart and the second chart, establishing a mapping link between the first chart and the second chart according to the relation between the first chart and the second chart, and linking the second chart into the corresponding first chart to obtain a third chart;
and marking the third graph according to the optimization result to obtain a simulation data graph.
Further, performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, and determining the electromagnetic generation condition in the intelligent door lock key circuit comprises:
discretizing a key circuit of the intelligent door lock according to the division condition in the circuit finite element analysis result to determine a plurality of circuit units;
and respectively analyzing electromagnetic generation conditions in the circuit units, collecting the operation conditions in the circuit units, and acquiring the operation parameters of the circuit units to obtain the electromagnetic information of the circuit units.
Further, when the magnetic shielding effectiveness of the intelligent door lock key circuit is obtained according to the electromagnetic generation condition in the intelligent door lock key circuit, a Max Wei Daishu equation set is established for the electromagnetic information of the circuit unit, the Max Wei Daishu equation set is solved, the magnetic shielding effectiveness of the circuit unit is obtained, and comprehensive overall analysis is performed according to the magnetic shielding effectiveness of the circuit unit, so that the magnetic shielding effectiveness of the intelligent door lock key circuit is obtained.
Further, converting the magnetic field shielding effectiveness of the key circuit of the intelligent door lock into a shielding factory effect diagram, and analyzing and determining the interference measure of the key circuit according to the shielding factory effect diagram comprises the following steps:
the magnetic field shielding effectiveness of the intelligent door lock key circuit is arranged according to time sequence, and the time is used as a variable to be converted into a chart form, so that a shielding plant effect diagram is obtained;
and (3) performing comparison analysis in the shielding factory effect diagram, analyzing the magnetic shielding effectiveness combined with a preset standard limit value, and performing interference measure adjustment on corresponding circuit units when the magnetic shielding effectiveness exceeds the preset standard limit value to determine the interference measure of the key circuit.
Further, the interference measures are anti-electromagnetic interference for the key circuit, the interference measures are stored in the storage unit in advance, scheme measures are matched in the storage unit according to the characteristics of the shielding plant effect diagram when the interference measures of the key circuit are determined, so that the interference measures of the key circuit are obtained, the interference measures are automatically realized through an anti-electromagnetic interference device, and the anti-electromagnetic interference device comprises: the intelligent door lock control system comprises an implementation unit and a control unit, wherein the implementation unit comprises execution parts of all schemes in interference measures, and the control unit controls corresponding parts in the implementation unit to adjust the intelligent door lock key circuit according to the determined interference measures of the key circuit.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of steps of an anti-electromagnetic interference method of a key circuit for an intelligent door lock according to the present invention;
fig. 2 is a schematic structural diagram of a first step in the electromagnetic interference resisting method of a key circuit for an intelligent door lock according to the present invention;
FIG. 3 is a schematic diagram illustrating steps of an analysis and calculation module in an anti-electromagnetic interference method of a key circuit for an intelligent door lock according to the present invention;
fig. 4 is a schematic diagram of steps of a post-processing module in an anti-electromagnetic interference method of a key circuit for an intelligent door lock according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
As shown in fig. 1, an embodiment of the present invention provides an electromagnetic interference resisting method for a key circuit of an intelligent door lock, including:
step one, a finite element analysis method is adopted to establish a design model for a key circuit in an intelligent door lock, a circuit simulation design model is obtained, discretization solving and analysis are carried out for the circuit simulation design model, and a circuit finite element analysis result is obtained;
performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, determining electromagnetic generation conditions in the intelligent door lock key circuit, and obtaining magnetic field shielding effectiveness of the intelligent door lock key circuit according to the electromagnetic generation conditions in the intelligent door lock key circuit;
and thirdly, converting the magnetic field shielding effectiveness of the intelligent door lock key circuit into a shielding factory effect diagram, and analyzing and determining interference measures of the key circuit according to the shielding factory effect diagram.
The technical scheme provides an anti-electromagnetic interference method of a key circuit for an intelligent door lock, when the key circuit of the intelligent door lock is subjected to anti-electromagnetic interference, a finite element analysis method is adopted to build a design model for the key circuit in the intelligent door lock, a circuit simulation design model is obtained according to the key circuit of the intelligent door lock, and discretization solving and analysis are carried out on the circuit simulation design model to obtain a circuit finite element analysis result; performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, determining electromagnetic generation conditions in the intelligent door lock key circuit after performing network subdivision on the key circuit, and obtaining magnetic field shielding effectiveness of the intelligent door lock key circuit according to the electromagnetic generation conditions in the intelligent door lock key circuit; and then converting the magnetic field shielding effectiveness of the intelligent door lock key circuit into a shielding factory effect diagram, and analyzing and determining interference measures of the key circuit aiming at the shielding factory effect diagram.
According to the technical scheme, the problem of poor anti-interference effect in the prior art is solved, the anti-interference effect is improved, the anti-interference reliability is ensured, the design model is built for the key circuit in the intelligent door lock by adopting the finite element analysis method, the key circuit of the intelligent door lock can be extracted to obtain the circuit simulation design model, convenience is provided for key circuit analysis, all conditions of the key circuit can be simulated by discretizing and analyzing the circuit simulation design model, so that the continuous model is discretized, the key circuit is conveniently analyzed and subjected to anti-electromagnetic interference, the magnetic field shielding effectiveness of the key circuit of the intelligent door lock is converted into a shielding plant effect diagram to intuitively present the anti-electromagnetic interference condition of the key circuit, information is conveniently and directly obtained and interference measures of the key circuit are determined, and then the anti-electromagnetic interference adjustment can be timely performed for the key circuit, so that electromagnetic interference in the key circuit is timely relieved, the normal use of the intelligent door lock is prevented from being influenced by electromagnetic interference, and the service life of the intelligent door lock can be prolonged.
In one embodiment of the present invention, the method uses a finite element analysis method to build a design model for a key circuit in an intelligent door lock, to obtain a circuit simulation design model, and uses ANSYS to perform simulation when discrete solving and analyzing are performed for the circuit simulation design model, to obtain a circuit finite element analysis result, as shown in fig. 2, the ANSYS includes: the device comprises a preprocessing module, an analysis and calculation module and a post-processing module;
the preprocessing module is used for establishing and dividing a model aiming at a key circuit in the intelligent door lock to obtain a circuit simulation design model and a circuit division result;
the analysis and calculation module is used for carrying out simulation on the circuit simulation design model according to the circuit division result, analyzing electromagnetic field analysis of the electromagnetic field in the circuit and obtaining analysis and calculation data;
the post-processing module is used for converting the analysis and calculation data into a chart form through data processing.
According to the technical scheme, a finite element analysis method is adopted to build a design model for a key circuit in an intelligent door lock to obtain a circuit simulation design model, discretization solving and analysis are carried out for the circuit simulation design model, and when a circuit finite element analysis result is obtained, ANSYS is adopted to carry out simulation, wherein the ANSYS comprises the following steps: the device comprises a preprocessing module, an analysis and calculation module and a post-processing module; when simulation is carried out, a preprocessing module carries out model establishment and division on a key circuit in the intelligent door lock to obtain a circuit simulation design model and a circuit division result, then an analysis calculation module carries out simulation on the circuit simulation design model according to the circuit division result, and analyzes electromagnetic field analysis of an electromagnetic field in the circuit to obtain analysis calculation data; the analysis and calculation data are then converted into a chart form by a post-processing module through data processing.
According to the technical scheme, the simulation of the key circuit is realized by adopting the ANSYS fusion structure, fluid, electric field, magnetic field and sound field analysis in a large-scale general finite element analysis, so that more comprehensive analysis and calculation data are obtained, the efficiency of obtaining the analysis and calculation data is improved, and the accuracy of the analysis and calculation data is ensured.
In one embodiment of the present invention, the preprocessing module includes: the model building unit and the grid dividing unit;
the model building unit is used for building a model for a key circuit in the intelligent door lock, taking the key circuit in the intelligent door lock as an analyzed object, acquiring construction information of the key circuit in the intelligent door lock, building a simulation circuit according to the construction information of the key circuit, and re-engraving the key circuit to obtain a circuit simulation design model;
the grid dividing unit is used for discretizing the circuit simulation design model, dividing the circuit simulation design model, acquiring the functions of the electronic components in the key circuit, obtaining the attribute information of the electronic components, dividing the circuit simulation design model into a plurality of units according to the attribute information of the electronic components, and obtaining a circuit dividing result.
The pretreatment module in the technical scheme comprises: the model building unit and the grid dividing unit; when a circuit simulation design model and a circuit division result are obtained, a model building unit is used for building a model for a key circuit in the intelligent door lock, the key circuit in the intelligent door lock is used as an analyzed object, construction information of the key circuit in the intelligent door lock is obtained, a simulation circuit is built according to the construction information of the key circuit, and the key circuit is re-carved out to obtain the circuit simulation design model; discretizing the circuit simulation design model through the grid dividing unit, dividing the circuit simulation design model, obtaining the functions of the electronic components in the key circuit, obtaining the attribute information of the electronic components, dividing the circuit simulation design model into a plurality of units according to the attribute information of the electronic components, and obtaining a circuit dividing result.
According to the technical scheme, the key circuit in the intelligent door lock is re-carved through the model building unit, convenience is provided for analyzing the key circuit, and the circuit simulation design model is divided into a plurality of units through the grid dividing unit, so that the analysis can be performed by the units, and further, the specific units in the key circuit can be accurately locked, and accurate electromagnetic anti-interference is realized.
In one embodiment of the present invention, when the model building unit builds the analog circuit according to the configuration information of the key circuit, the model building unit performs parameter setting and port configuration according to the key circuit, where the parameter setting includes: and designating frequency and boundary conditions, wherein the designated frequency and boundary conditions are determined according to the functions of the intelligent door lock, and the port configuration is carried out according to the existence relation of the key circuit in the intelligent door lock and the port excitation is allocated.
When the analog circuit is built according to the construction information of the key circuit, the model building unit in the technical scheme performs parameter setting and port configuration according to the key circuit, wherein the parameter setting comprises: the specified frequency and the boundary value conditions are determined according to the functions of the intelligent door lock, and the port configuration is carried out and the port excitation is allocated according to the existence relation of the key circuit in the intelligent door lock.
According to the technical scheme, the existence condition of the complete repeated key circuit in the intelligent door lock of the circuit simulation design model is realized by carrying out parameter setting and port configuration according to the key circuit, so that simulation deviation is reduced, the fitting degree of simulation and actual conditions is improved, the electromagnetic anti-interference precision is further improved, and the service life of the intelligent door lock is prolonged.
As shown in fig. 3, in one embodiment of the present invention, when the analysis calculation module obtains analysis calculation data, the analysis calculation module includes:
s101, performing key circuit simulation in a circuit simulation design model to obtain simulation data information of a key circuit in an initial state and obtain initial circuit data;
s102, performing simulation in a circuit simulation design model according to the service conditions of a key circuit when the intelligent door lock is applied, and respectively simulating the service conditions in the circuit simulation design model to obtain simulation data of a plurality of groups of circuit simulation design models;
s103, dividing the initial circuit data and the simulation data into a plurality of parts according to the circuit division result, respectively carrying out electromagnetic analysis in each part, and clearly determining the part with electromagnetic change and the electromagnetic change condition to obtain an analysis result;
s104, data arrangement is carried out on the analysis result, and the analysis and calculation optimization result is optimized, so that analysis and calculation data are obtained.
When analysis and calculation data are obtained, the analysis and calculation module in the technical scheme firstly carries out key circuit simulation in the circuit simulation design model to obtain the simulation data information of the key circuit in an initial state and obtain initial circuit data; then, according to the use condition of the key circuit when the intelligent door lock is applied, simulation is carried out in a circuit simulation design model, and the use condition is respectively simulated in the circuit simulation design model to obtain simulation data of a plurality of groups of circuit simulation design models; dividing the initial circuit data and the simulation data into a plurality of parts according to the circuit dividing result, respectively carrying out electromagnetic analysis in each part, and clearly determining the part with electromagnetic change and the electromagnetic change condition to obtain an analysis result; and finally, data arrangement is carried out on the analysis result, and the analysis and calculation optimization result is optimized, so that analysis and calculation data are obtained.
According to the technical scheme, simulation can be carried out on all key circuit conditions of the intelligent door lock through the simulation design model, so that various conditions of the key circuit in the use process of the intelligent door lock are defined, electromagnetic generation conditions of the key circuit in the intelligent door lock can be comprehensively known, and electromagnetic optimization adjustment conditions in the key circuit are determined.
In one embodiment provided by the present invention, the analyzing the calculated data includes: the optimizing result and the analyzing result are arranged into data, as shown in fig. 4, when the post-processing module converts the analyzing calculation data into a chart form through data processing, the post-processing module comprises:
s201, carrying out integral conversion on analysis result arrangement data, combing the analysis result arrangement data according to the whole key circuit to obtain analysis result data under various conditions, and then constructing an integral view by taking condition changes as variables to obtain a first chart;
s202, carrying out local conversion on analysis result arrangement data, combing the analysis result arrangement data according to a circuit division result of a key circuit by taking a part as a unit to obtain analysis result data of each part, and then constructing a part view in each part aiming at the analysis result data of each part to obtain a plurality of second charts;
s203, analyzing the relation between the first chart and the second chart, establishing a mapping link between the first chart and the second chart according to the relation between the first chart and the second chart, and linking the second chart to the corresponding first chart to obtain a third chart;
s204, marking in the third graph according to the optimization result to obtain a simulation data graph.
The analysis and calculation data in the technical scheme comprises: when the post-processing module converts analysis calculation data into a chart form through data processing, firstly, carrying out integral conversion on the analysis result arrangement data, combing the analysis result arrangement data according to the integral key circuit to obtain analysis result data under various conditions, and then constructing an integral view by taking condition change as a variable to obtain a first chart; then carrying out local conversion on analysis result arrangement data, combing the analysis result arrangement data according to a circuit division result of the key circuit by taking a part as a unit to obtain analysis result data of each part, and constructing a part view in each part aiming at the analysis result data of each part to obtain a plurality of second charts; then analyzing the relation between the first chart and the second chart, establishing a mapping link between the first chart and the second chart according to the relation between the first chart and the second chart, and linking the second chart into the corresponding first chart to obtain a third chart; and finally, marking in the third graph according to the optimization result to obtain a simulation data graph.
According to the technical scheme, all analysis and calculation data are contained in the simulation data chart, so that the simulation situation is reflected more comprehensively by the simulation data chart, the second chart can be called and checked on the basis of the first chart by establishing the mapping link between the first chart and the second chart according to the relation between the first chart and the second chart, convenience is brought to data check, and in addition, the third chart is marked according to the optimization result, so that the optimization result can be visually seen in the charts.
In one embodiment provided by the invention, the self-adaptive network subdivision is performed on the intelligent door lock key circuit according to the circuit finite element analysis result, and the determining of the electromagnetic generation condition in the intelligent door lock key circuit comprises the following steps:
discretizing a key circuit of the intelligent door lock according to the division condition in the circuit finite element analysis result to determine a plurality of circuit units;
and respectively analyzing electromagnetic generation conditions in the circuit units, collecting the operation conditions in the circuit units, and acquiring the operation parameters of the circuit units to obtain the electromagnetic information of the circuit units.
According to the technical scheme, in the process of carrying out self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result and determining the electromagnetic generation condition in the intelligent door lock key circuit, the intelligent door lock key circuit is discretized according to the division condition in the circuit finite element analysis result, and a plurality of circuit units are determined; and then respectively analyzing electromagnetic generation conditions in the circuit unit, collecting the operation conditions in the circuit unit, and acquiring the operation parameters of the circuit unit to obtain the electromagnetic information of the circuit unit.
According to the technical scheme, the key circuit is discretized to enable the discretized magnetic field, so that the practical problem is simplified, the processing process is concise, the accuracy of the calculated result is high, the circuit unit can be accurately locked, and convenience is provided for electromagnetic anti-interference.
In one embodiment provided by the invention, when the magnetic shielding effectiveness of the intelligent door lock key circuit is obtained according to the electromagnetic generation condition in the intelligent door lock key circuit, a Max Wei Daishu equation set is established for the electromagnetic information of the circuit unit, the Max Wei Daishu equation set is solved to obtain the magnetic shielding effectiveness of the circuit unit, and the magnetic shielding effectiveness of the intelligent door lock key circuit is obtained by comprehensive overall analysis according to the magnetic shielding effectiveness of the circuit unit.
According to the technical scheme, when the magnetic field shielding effectiveness of the intelligent door lock key circuit is obtained according to the electromagnetic generation condition in the intelligent door lock key circuit, a Maxwell Wei Daishu equation set is established for the electromagnetic information of the circuit unit, the relationship among the electric field, the magnetic field, the charge density and the current density is described by using the Maxwell Wei Daishu equation set, so that the Gaussian theorem of how the electric field is generated by charges is clarified, the non-existing Gao Sici law of the magnetic monopole is discussed, the Maxwell-ampere law of how the magnetic field is generated by the current and the changed electric field and the Faraday electromagnetic induction law of how the electric field is generated by the changed magnetic field are discussed, the solution is further carried out according to the Maxwell Wei Daishu equation set, the electromagnetic wave is deduced, the magnetic field shielding effectiveness of the circuit unit is calculated according to the electromagnetic principle, and the comprehensive overall analysis is carried out according to the magnetic field shielding effectiveness of the circuit unit, and the magnetic field shielding effectiveness of the intelligent door lock key circuit is obtained.
The technical scheme completely summarizes the basic rule of the electromagnetic field through the Maxwell Wei Daishu equation set system, predicts the existence of the electromagnetic wave, thereby determining the magnetic shielding effectiveness in the key circuit, and can determine which part of the key circuit has weaker electromagnetic shielding effectiveness by analyzing the circuit unit, thereby realizing the accurate electromagnetic anti-interference with pertinence.
In one embodiment provided by the invention, converting magnetic field shielding effectiveness of a key circuit of an intelligent door lock into a shielding factory effect diagram, and analyzing and determining interference measures of the key circuit aiming at the shielding factory effect diagram comprises the following steps:
the magnetic field shielding effectiveness of the intelligent door lock key circuit is arranged according to time sequence, and the time is used as a variable to be converted into a chart form, so that a shielding plant effect diagram is obtained;
and (3) performing comparison analysis in the shielding factory effect diagram, analyzing the magnetic shielding effectiveness combined with a preset standard limit value, and performing interference measure adjustment on corresponding circuit units when the magnetic shielding effectiveness exceeds the preset standard limit value to determine the interference measure of the key circuit.
According to the technical scheme, when the magnetic field shielding effectiveness of the intelligent door lock key circuit is converted into a shielding factory effect diagram, and interference measures of the key circuit are analyzed and determined according to the shielding factory effect diagram, firstly, the magnetic field shielding effectiveness of the intelligent door lock key circuit is sorted according to time sequence, and the magnetic field shielding effectiveness is converted into a chart form by taking time as a variable, so that the shielding factory effect diagram is obtained; and then comparing and analyzing in the shielding factory effect diagram, analyzing the magnetic shielding effectiveness combined with a preset standard limit value, and adjusting interference measures for corresponding circuit units when the magnetic shielding effectiveness exceeds the preset standard limit value to determine the interference measures of the key circuit.
According to the technical scheme, the change of shielding effectiveness in the key circuit can be intuitively and clearly determined through the shielding factory effect diagram, so that the change of shielding effectiveness can be timely analyzed and found, interference measures of the key circuit can be timely obtained, and interference measure adjustment is realized.
In one embodiment of the present invention, the interference measures are anti-electromagnetic interference for the key circuit, and the interference measures are pre-stored in the storage unit, and when the interference measures of the key circuit are determined, scheme measures are performed in the storage unit according to the characteristics of the shielding plant effect diagram, so as to obtain the interference measures of the key circuit, wherein the interference measures are automatically implemented through an anti-electromagnetic interference device, and the anti-electromagnetic interference device comprises: the intelligent door lock control system comprises an implementation unit and a control unit, wherein the implementation unit comprises execution parts of all schemes in interference measures, and the control unit controls corresponding parts in the implementation unit to adjust the intelligent door lock key circuit according to the determined interference measures of the key circuit.
The interference measures in the technical scheme are anti-electromagnetic interference aiming at the key circuit, the interference measures are prestored in the storage unit, when the interference measures of the key circuit are determined, scheme measures are matched in the storage unit according to the characteristics of the shielding plant effect diagram to obtain the interference measures of the key circuit, the interference measures are automatically realized through an anti-electromagnetic interference device, and the anti-electromagnetic interference device comprises: the intelligent door lock comprises an implementation unit and a control unit, wherein after the interference measures of the key circuits are obtained, the control unit controls corresponding parts in the implementation unit to adjust the key circuits of the intelligent door lock according to the determined interference measures of the key circuits, and the implementation unit comprises execution parts of all schemes in the interference measures, such as a carding device of circuit connecting wires, anti-interference electronic components and the like.
In particular, when the control unit controls the corresponding component in the implementation unit to adjust the intelligent door lock key circuit according to the determined interference measure of the key circuit, the control unit obtains the control signal of the implementation unit according to the interference measure of the key circuit, and when the control signal is transmitted from the control unit to the implementation unit, preliminary analysis is performed through the following formula:
in the above-mentioned formula(s),for preliminary analysis of the judgment value, < >>For controlling the length of the signal +.>Transmission rate in units>For the transmission distance>Is a target time gap;
according to preliminary divisionAnalysis of judgment valueFurther processing the control signal, and analyzing the judgment value +.>When the method is used, the control signal is subjected to segmentation processing, and the number of transmission paths is determined through the following formula:
in the above-mentioned formula(s),for the number of transmission paths>Representing the segmentation processing time, & lt + & gt>Representing a rounding function>Representing a symbolic function +_>Representing the processing time of the control signal after the implementation unit receives the segmentation processing;
then according to the determined number of transmission pathsAnd transmitting the segmented signals obtained after the control signal segmentation processing from the control unit to the implementation unit in parallel.
According to the technical scheme, the interference measures are stored in the storage unit in advance, so that the interference measures under the unified format can be directly obtained when the interference measures of the key circuit are determined, the interference measures are convenient to execute, the interference measures are automatically realized through the electromagnetic interference resisting device, adjustment is automatically realized in the intelligent door lock, the use of the intelligent door lock is prevented from being influenced by electromagnetic interference, the service life of the intelligent door lock is shortened, and the service time of the intelligent door lock is prolonged. In addition, when the control signal is transmitted from the control unit to the implementation unit, the control signal can be transmitted within a target time interval through preliminary analysis and further processing aiming at the control signal, so that the transmission efficiency is ensured, when the number of transmission paths is determined, the time for carrying out segmentation processing in the control unit and processing the received control signal after the segmentation processing in the implementation unit is considered, so that the accuracy of the number of the determined transmission paths is improved, the time waste is avoided, the implementation unit timely adjusts the intelligent door lock key circuit according to the interference measures of the key circuit, the influence of electromagnetic interference on the key circuit is further reduced, the normal use of the intelligent door lock is avoided, and the service life of the intelligent door lock is prolonged.
It will be appreciated by those skilled in the art that the first and second aspects of the present invention refer only to different phases of application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, 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 a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. An anti-electromagnetic interference method of a key circuit for an intelligent door lock is characterized by comprising the following steps:
establishing a design model aiming at a key circuit in the intelligent door lock by adopting a finite element analysis method to obtain a circuit simulation design model, and carrying out discretization solving and analysis aiming at the circuit simulation design model to obtain a circuit finite element analysis result;
performing self-adaptive network subdivision on the intelligent door lock key circuit according to the circuit finite element analysis result, determining electromagnetic generation conditions in the intelligent door lock key circuit, and obtaining the magnetic field shielding effectiveness of the intelligent door lock key circuit according to the electromagnetic generation conditions in the intelligent door lock key circuit;
the magnetic field shielding effectiveness of the intelligent door lock key circuit is converted into a shielding factory effect diagram, and interference measures of the key circuit are analyzed and determined according to the shielding factory effect diagram, and the method comprises the following steps: the magnetic field shielding effectiveness of the intelligent door lock key circuit is arranged according to time sequence, and the time is used as a variable to be converted into a chart form, so that a shielding plant effect diagram is obtained; performing comparison analysis in a shielding factory effect diagram, analyzing the magnetic shielding effectiveness in combination with a preset standard limit value, and performing interference measure adjustment on corresponding circuit units when the magnetic shielding effectiveness exceeds the preset standard limit value to determine the interference measure of a key circuit; the interference measures are anti-electromagnetic interference for the key circuit, the interference measures are stored in the storage unit in advance, scheme measures are matched in the storage unit according to the characteristics of the shielding plant effect diagram when the interference measures of the key circuit are determined, so that the interference measures of the key circuit are obtained, the interference measures are automatically realized through an anti-electromagnetic interference device, and the anti-electromagnetic interference device comprises: the intelligent door lock control system comprises an implementation unit and a control unit, wherein the implementation unit comprises execution parts of all schemes in interference measures, and the control unit controls corresponding parts in the implementation unit to adjust the intelligent door lock key circuit according to the determined interference measures of the key circuit.
2. The method of claim 1, wherein the performing a design model establishment for a key circuit in the intelligent door lock by using a finite element analysis method to obtain a circuit simulation design model, performing discretization solving and analysis for the circuit simulation design model, and performing simulation by using ANSYS when obtaining a circuit finite element analysis result, wherein the ANSYS comprises: the device comprises a preprocessing module, an analysis and calculation module and a post-processing module;
the preprocessing module is used for establishing and dividing a model aiming at a key circuit in the intelligent door lock to obtain a circuit simulation design model and a circuit division result;
the analysis and calculation module is used for carrying out simulation on the circuit simulation design model according to the circuit division result, analyzing electromagnetic field analysis of the electromagnetic field in the circuit and obtaining analysis and calculation data;
the post-processing module is used for converting the analysis and calculation data into a chart form through data processing.
3. The method of claim 2, wherein the pre-processing module comprises: the model building unit and the grid dividing unit;
the model building unit is used for building a model for a key circuit in the intelligent door lock, taking the key circuit in the intelligent door lock as an analyzed object, acquiring construction information of the key circuit in the intelligent door lock, building a simulation circuit according to the construction information of the key circuit, and re-engraving the key circuit to obtain a circuit simulation design model;
the grid dividing unit is used for discretizing the circuit simulation design model, dividing the circuit simulation design model, acquiring the functions of the electronic components in the key circuit, obtaining the attribute information of the electronic components, dividing the circuit simulation design model into a plurality of units according to the attribute information of the electronic components, and obtaining a circuit dividing result.
4. The method according to claim 3, wherein the model building unit performs parameter setting and port configuration according to the key circuit when building the analog circuit according to the configuration information of the key circuit, wherein the parameter setting includes: and designating frequency and boundary conditions, wherein the designated frequency and boundary conditions are determined according to the functions of the intelligent door lock, and the port configuration is carried out according to the existence relation of the key circuit in the intelligent door lock and the port excitation is allocated.
5. The method of claim 2, wherein the analysis calculation module, when obtaining analysis calculation data, comprises:
performing key circuit simulation in a circuit simulation design model to obtain simulation data information of a key circuit in an initial state and obtain initial circuit data;
according to the use condition of the key circuit when the intelligent door lock is applied, simulation is carried out in a circuit simulation design model, and the use condition is respectively simulated in the circuit simulation design model to obtain simulation data of a plurality of groups of circuit simulation design models;
dividing initial circuit data and simulation analog data into a plurality of parts according to a circuit dividing result, respectively carrying out electromagnetic analysis in each part, and clearly determining the part with electromagnetic change and the electromagnetic change condition to obtain an analysis result;
and data arrangement is carried out on the analysis result, and the analysis and calculation optimization result is optimized to obtain analysis and calculation data.
6. The method of claim 5, wherein analyzing the calculated data comprises: optimizing results and analyzing results, and when the post-processing module converts analyzing calculation data into a chart form through data processing, the post-processing module comprises the following steps:
the analysis result sorting data are integrally converted, the analysis result sorting data are integrally sorted according to the key circuit, analysis result data under various conditions are obtained, and then an integral view is built by taking condition changes as variables, so that a first chart is obtained;
performing local conversion on analysis result arrangement data, combing the analysis result arrangement data according to a circuit division result of the key circuit by taking a part as a unit to obtain analysis result data of each part, and constructing a part view in each part according to the analysis result data of each part to obtain a plurality of second charts;
analyzing the relation between the first chart and the second chart, establishing a mapping link between the first chart and the second chart according to the relation between the first chart and the second chart, and linking the second chart into the corresponding first chart to obtain a third chart;
and marking the third graph according to the optimization result to obtain a simulation data graph.
7. The method of claim 1, wherein the determining electromagnetic generation in the intelligent door lock key circuit comprises:
discretizing a key circuit of the intelligent door lock according to the division condition in the circuit finite element analysis result to determine a plurality of circuit units;
and respectively analyzing electromagnetic generation conditions in the circuit units, collecting the operation conditions in the circuit units, and acquiring the operation parameters of the circuit units to obtain the electromagnetic information of the circuit units.
8. The method of claim 7, wherein when the magnetic shielding effectiveness of the intelligent door lock key circuit is obtained according to the electromagnetic generation condition in the intelligent door lock key circuit, establishing a max Wei Daishu equation set for the electromagnetic information of the circuit unit, solving for the max Wei Daishu equation set to obtain the magnetic shielding effectiveness of the circuit unit, and performing comprehensive overall analysis according to the magnetic shielding effectiveness of the circuit unit to obtain the magnetic shielding effectiveness of the intelligent door lock key circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310523558.7A CN116306445B (en) | 2023-05-11 | 2023-05-11 | Anti-electromagnetic interference method of key circuit for intelligent door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310523558.7A CN116306445B (en) | 2023-05-11 | 2023-05-11 | Anti-electromagnetic interference method of key circuit for intelligent door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116306445A CN116306445A (en) | 2023-06-23 |
| CN116306445B true CN116306445B (en) | 2023-07-28 |
Family
ID=86798023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310523558.7A Active CN116306445B (en) | 2023-05-11 | 2023-05-11 | Anti-electromagnetic interference method of key circuit for intelligent door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116306445B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783885A (en) * | 2018-12-25 | 2019-05-21 | 山东师范大学 | A kind of intelligent power module multiple physical field coupling Simulation analysis method and system |
| CN114320029A (en) * | 2021-12-17 | 2022-04-12 | 上海爱信诺航芯电子科技有限公司 | Low-power-consumption anti-interference intelligent door lock and awakening method |
| CN115422792A (en) * | 2022-07-29 | 2022-12-02 | 成都飞机工业（集团）有限责任公司 | Method, device, equipment and medium for analyzing electromagnetic interference of switching power supply |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820245B2 (en) * | 2002-03-12 | 2004-11-16 | Carnegie Mellon University | Methods, systems, and computer program products for modeling inductive effects in a circuit by combining a plurality of localized models |
| US20070083244A1 (en) * | 2005-10-06 | 2007-04-12 | Greatbatch-Sierra, Inc. | Process for tuning an emi filter to reduce the amount of heat generated in implanted lead wires during medical procedures such as magnetic resonance imaging |
-
2023
- 2023-05-11 CN CN202310523558.7A patent/CN116306445B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783885A (en) * | 2018-12-25 | 2019-05-21 | 山东师范大学 | A kind of intelligent power module multiple physical field coupling Simulation analysis method and system |
| CN114320029A (en) * | 2021-12-17 | 2022-04-12 | 上海爱信诺航芯电子科技有限公司 | Low-power-consumption anti-interference intelligent door lock and awakening method |
| CN115422792A (en) * | 2022-07-29 | 2022-12-02 | 成都飞机工业（集团）有限责任公司 | Method, device, equipment and medium for analyzing electromagnetic interference of switching power supply |
Non-Patent Citations (2)
| Title |
|---|
| 智能密码锁电子模组的设计与开发;王宇涵;中国优秀博硕士学位论文全文数据库(硕士);第1-98页 * |
| 磁屏蔽效能的有限元分析;王晓蔚;任士焱;杨华云;吴波;;计量学报(第04期);第376-379页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116306445A (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | A time–power series-based semi-analytical approach for power system simulation | |
| CN103530440B (en) | Micro-grid harmonic suppression method based on particle swarm optimization algorithm | |
| CN117644794B (en) | Intelligent period control system based on charging pile | |
| CN116306445B (en) | Anti-electromagnetic interference method of key circuit for intelligent door lock | |
| CN108009308B (en) | Conducted electromagnetic interference prediction method | |
| CN108879966A (en) | A kind of electric power cabinet use environment monitoring system and its working method | |
| Li et al. | Linearization threshold condition and stability analysis of a stochastic dynamic model of one-machine infinite-bus (OMIB) power systems | |
| Gizatullin et al. | A technique for research of the conducted interferences from power devices of the aircraft under modernization | |
| CN114547969A (en) | EMD-MRVR-based multi-stress battery life prediction method | |
| Sabry et al. | Field data-based mathematical modeling by Bode equations and vector fitting algorithm for renewable energy applications | |
| CN110334385B (en) | Test method, device and equipment for central controller of comprehensive energy system | |
| CN116049156A (en) | Electric quantity data acquisition optimization method and system based on big data technology | |
| CN114757111B (en) | Intelligent equipment health management method based on digital twinning technology | |
| Ufnalski et al. | Particle swarm optimization of an iterative learning controller for the single-phase inverter with sinusoidal output voltage waveform | |
| CN115983458A (en) | Power carbon emission peak value prediction method and system based on grey BP neural network | |
| CN110212571B (en) | Stability quantitative analysis method for renewable energy power generation system | |
| Wang et al. | Partition-based Network Equivalent Method for Power System Subsynchronous Oscillation Analysis | |
| CN104699903A (en) | Intelligent substation secondary signal transmission system evaluation apparatus and method | |
| Hu et al. | Anti-Interference System for Power Sensor Signals under Artificial Intelligence | |
| CN116756984A (en) | Radiation emission simulation method and device | |
| CN110580541A (en) | Data processing device for power system | |
| CN117977584B (en) | Power load probability prediction method, system, medium, device and program product | |
| CN118393858B (en) | Energy-saving control system for park energy consumption equipment based on Internet of things technology | |
| CN113064585B (en) | JSON mode-based real-time message interface automatic generation method | |
| Babak et al. | Information Support for Identification of the Technical State of Electric Power Facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |