28 results about "Conducted Interference" patented technology

The invention relates to the technical field of fire detection, and discloses a multi-sensor pyrolysis particle fire detection control system and device, and the system comprises a power supply and signal coupling module, a dielectrophoresis modulation detection cavity module, a multi-dimensional environment sensing module, a central processing unit and an execution module. The power supply and signal coupling module extracts a high-frequency conducted interference signal of a power supply circuit and generates a high-voltage driving signal and a reference signal respectively; the dielectrophoresis modulation detection cavity module is used for establishing a non-uniform electric field by utilizing a high-voltage driving signal and carrying out dielectrophoresis modulation on aerosol particles passing through a detection area; the central processing unit synchronously collects the photoelectric detection signal and the reference signal, and determines the fire state by calculating a cross correlation coefficient. The device integrates the modules in a shell. According to the invention, physical and signal correlation between power supply noise and particle concentration change is established, electrical fire pyrolysis particles and environmental dust are effectively distinguished, and high-sensitivity early detection of electrical fire is realized.

This invention discloses a near-field scanning detection method based on active learning to obtain conducted coupling paths. The method includes: constructing a near-field scanning detection platform; placing the circuit board under test (PCB) in a microwave anechoic chamber; and using the near-field scanning detection platform directly above the PCB to perform detection; obtaining the detection results using an active learning-based near-field scanning method; and obtaining a near-field current distribution map on the PCB at continuous time intervals based on the detection results, thereby realizing the detection of conducted coupling paths. This invention utilizes active machine learning methods to achieve more efficient near-field scanning detection, concentrating scanning points in areas with strong currents and accurately reconstructing the actual current changes of the PCB using the scan results of sparse points, greatly improving detection efficiency. By using near-field scanning detection to reconstruct the current changes on the circuit board, the coupling paths of conducted interference currents on the PCB can be quickly analyzed, meeting the requirements for detecting electromagnetic interference in systems in practical engineering.

The invention discloses a rapid assessment method for radio frequency conducted interference of a power supply module. The method comprises the following steps: carrying out induction and classification on the power supply module from the aspects of function application and size, and then judging the weights of differential mode interference and common mode interference in radio frequency conducted interference of the power supply module through an analytic hierarchy process; influence factors influencing radio frequency conducted interference of the power module are concluded and classified by using an electromagnetic topological structure according to an analytic hierarchy process; carrying out weight analysis on the related influence factors according to an index weight ANP algorithm; performing prediction calculation on conducted interference under each influence factor through a rapid evaluation method; and calculating the radio frequency conducted interference of the power supply module under the condition of multiple influence factors by analyzing the distributed weight. Through the conducted interference under the multi-factor coupling characteristic of the power supply module, the rapid evaluation of the conducted interference of the power supply module is realized.

This application relates to a high-frequency carrier electromagnetic protection system, method, and electronic device for power energy storage. The system includes: a high-frequency carrier detection module for acquiring high-frequency carrier digital signals; an interference suppression control module that uses an interference signal identification algorithm to obtain the interference type and intensity level of the interference signal, and uses a filtering parameter optimization algorithm to obtain the optimal filtering parameters based on the interference type and intensity level, and obtains a shielding status monitoring command through a shielding status linkage algorithm; an adaptive filtering module that controls the on / off or combination of capacitor arrays and inductor arrays according to the optimal filtering parameters to filter out conducted interference signals; and a multi-layer shielding module that responds to the shielding status monitoring command to filter out radiated interference signals. This solves the problems of insufficient protection targeting, single protection level, and poor compatibility in electromagnetic protection technologies, achieving precise and efficient protection against high-frequency carrier electromagnetic interference, while ensuring the operating efficiency and stability of the power energy storage system.

The invention discloses an anti-interference isolation circuit of an elevator interphone. An input terminal CN1; the normal phase end of the operational amplifier unit U22 is respectively connected with one end of the input terminal CN1 and an input voltage through a resistor R27 and a capacitor C26 in sequence, and the reverse phase end of the operational amplifier unit U22 is connected with the other end of the input terminal CN1 through a resistor R32 and a capacitor C28 in sequence; the positive phase end of the operational amplifier unit U18 is connected with the output end of the operational amplifier unit U22 through a resistor R28 and a capacitor C27 in sequence, the negative phase end of the operational amplifier unit U18 is connected with the output end, and the output end is further connected with the positive electrode of the light emitting end of the optocoupler U19; the negative electrode of the light-emitting end of the optocoupler U19 is grounded, the collector of the optocoupler U19 receives a voltage, the emitter of the optocoupler U19 is grounded through a resistor R103, the emitter of the optocoupler U19 is further connected with other peripherals, and electromagnetic interference and conducted interference generated in the elevator strong current environment are thoroughly blocked from two fundamental paths of power supply and signal transmission through the dual design of power isolation and signal isolation. And complete isolation of strong current and weak current is realized.

The application provides a common-mode interference modeling and analysis method for an SLLC resonant converter, and belongs to the technical field of power electronics and electromagnetic compatibility; by extracting key parasitic parameters of a circuit, combining a transmission line theory and an equivalent circuit modeling technology, constructing a high-precision common-mode interference propagation path model, and introducing complex high-frequency line parasitic parameters, the application describes the propagation characteristics of common-mode currents; aiming at the calculation complexity problem caused by high-dimension modeling, the application proposes a model simplification strategy, effectively reduces the calculation complexity while ensuring the analysis accuracy through equivalent transformation and frequency domain order reduction processing; the application has the advantages of high precision, high efficiency, strong universality and the like, and is suitable for common-mode interference modeling analysis and electromagnetic compatibility design of the SLLC resonant converter and other various high-frequency power electronic devices.

The invention discloses an active suppression method for conducted interference of a charging module cluster and a related device, which are used for enabling the charging module cluster to still effectively suppress conducted interference in a high-power parallel operation scene and maintaining the output stability and reliability of a system. The method comprises the following steps: acquiring operation parameters of a plurality of charging modules working in parallel; establishing a switching noise contribution model reflecting the influence degree of each charging module on cluster conducted interference based on the operation parameters; analyzing the switching transient states of the plurality of charging modules under the current working condition by using the switching noise contribution model, and calculating the spectrum superposition relationship of the plurality of charging modules under the current working condition; determining a target relative time sequence relation according to the spectrum superposition relation; and issuing a switch parameter adjustment instruction to the plurality of charging modules according to the target relative time sequence relationship, and performing synchronous calibration on the switch control time sequence in the plurality of charging modules, so that the plurality of charging modules execute switch actions according to the calibrated relative time sequence.

The invention discloses a variable-frequency oscillation anti-interference system and an interference signal acquisition method, and belongs to the technical field of charging piles. The system comprises a fluxgate current acquisition module, an edge jump catcher unit, an upward counter unit, a random number generator unit, a data comparator unit, a high-low level state latch unit, an arithmetic unit, a digital-to-analog conversion unit and a low-pass filter circuit. Time delay controlled by a random number is introduced in the switching process of forward and reverse charging of the magnetic core, so that the sampling phase of the system is randomized, and the fixed harmonic relation between the sampling frequency and an interference signal of a specific frequency band is broken, and therefore, low-frequency conducted interference of the frequency band of 15kHz-150kHz is effectively inhibited, and misoperation caused by the fact that the low-frequency conducted interference is misjudged as a direct-current leakage signal is avoided. According to the invention, the accuracy and reliability of residual current detection in high-interference environments such as automobile charging piles and photovoltaic power generation are obviously improved.

This invention provides a method, apparatus, receiver, medium, and system for conducting interference testing of inverters, relating to the field of equipment testing technology. The method includes: for any test condition among all test conditions, controlling a first LISN to perform phase adjustment, and performing conducted interference testing on the device under test based on the phase-adjusted first LISN; after all phase tests corresponding to the first LISN are completed and without power interruption, controlling a second LISN to perform phase adjustment, and performing conducted interference testing on the device under test based on the phase-adjusted second LISN; the first LISN may be an AC LISN or a DC LISN, and the second LISN may be an AC LISN or a DC LISN, wherein the first LISN and the second LISN are of different types. This invention can significantly reduce test time, thereby improving the overall test efficiency of conducted interference testing.

The invention discloses a wireless communication anti-interference method, system and device and a storage medium, and relates to the technical field of wireless communication. The method comprises the steps that the wireless communication anti-interference method is applied to a wireless communication system, the wireless communication system comprises a hardware layer and a software layer, index data of the hardware layer are obtained, and interference information is obtained by conducting interference identification on the index data of the hardware layer through the software layer; and adjusting parameters of the hardware layer according to the interference information. The software layer performs interference identification based on the index data of the hardware layer, determines interference information, and then directly adjusts parameters of the hardware layer according to the interference information; through cooperative work of the hardware layer and the software layer and direct adjustment of parameters of the hardware layer, the anti-interference capability and the transmission rate of the wireless communication system are improved, so that the wireless communication system can correctly receive and transmit data.

The invention provides a common-mode interference modeling and analysis method for an SLLC resonant converter, and belongs to the technical field of power electronics and electromagnetic compatibility. According to the method, a high-precision common-mode interference propagation path model is constructed by extracting key parasitic parameters of a circuit and combining a transmission line theory and an equivalent circuit modeling technology, and complex high-frequency line parasitic parameters are introduced to describe propagation characteristics of common-mode current; a model simplification strategy is provided for the problem of calculation complexity caused by high-dimensional modeling, and the analysis precision is ensured while the calculation complexity is effectively reduced through equivalent transformation and frequency domain order reduction processing; the method has the advantages of high precision, high efficiency, high universality and the like, and is suitable for common-mode interference modeling analysis and electromagnetic compatibility design of the SLLC resonant converter and other various high-frequency power electronic devices.

The invention provides a chip electromagnetic compatibility automatic test method and a conducted radiation interference test platform. The method comprises the following steps: receiving a test parameter set configured by a user by using a first graphical user interface; the test parameter set comprises configuration parameters for a radiated interference test and / or a conducted interference test of the tested chip; positioning and identifying interaction elements in a second graphical user interface provided by test instrument control software of the operation instrument control end based on an image identification technology; a simulation user operation instruction is generated and executed, and test instrument control software is controlled to automatically complete test parameter setting and start a radiated interference test and / or a conducted interference test; and after the test is completed, obtaining test data output by the test instrument control software, and generating an electromagnetic compatibility test result report for the tested chip. According to the invention, the problems of separation of radiation and conduction test equipment, tedious operation, lack of integrated automatic management and control and the like in an existing chip electromagnetic compatibility test can be effectively solved.

The invention provides a hot-line work robot arc discharge transient current test system and method and a medium. The system comprises a high-voltage wire, wherein a high-voltage test module is connected with the high-voltage wire; the liftable insulating platform is arranged right below the high-voltage wire; the current measurement module is arranged on the liftable insulating platform and is isolated from the ground to form a floating ground measurement structure. According to the invention, the whole current measurement module is electrically isolated from the ground to form a floating ground measurement structure, so that the potential reference of the measurement system and the potential of a discharge point float synchronously, and the conduction interference path of a ground loop is fundamentally cut off; the current measurement module is configured to adopt a differential measurement mode to actively identify and counteract common-mode radiation interference components, so that the signal-to-noise ratio and the measurement precision of a signal in a strong electromagnetic disturbance environment are greatly improved; the floating ground technology and the differential technology are organically combined to form a complete anti-interference system aiming at conducted interference and radiated interference.

The utility model relates to a wireless charger for quickly charging a watch. According to the quick-charging wireless charger for the watch, the radiation absorption device is arranged between the transmitting circuit and the receiving coil, and the radiation absorption device generates a negative magnetic field according to an induced parasitic magnetic field to offset the parasitic magnetic field, so that the radiation interference of EMC (Electro Magnetic Compatibility) is reduced; meanwhile, the low-frequency MOS tube is adopted to build the full-bridge switching circuit, the two ends of the transmitting coil are electrically connected with the common-mode inductors, and then the two ends of the transmitting coil are electrically connected with the capacitive filters, so that the wireless charging module adopting the low-frequency MOS tube transmitting circuit can prevent radiation interference and suppress conducted interference. Therefore, on the basis of meeting the working frequency requirement of the charging standard Qi2 and meeting the EMC requirement, the circuit setting cost is greatly reduced, and the quick charging experience requirement of a user is met.

The invention discloses an electromagnetic environment detection system and method for a blade server. The electromagnetic environment detection system comprises a conducted interference monitoring board integrated in the server. The conducted interference monitoring board comprises an interference extraction unit, a single-chip microcomputer and a state indicating lamp. The input end of the interference extraction unit is connected with a live wire and a zero wire of a power supply filter in a server case, and extracts an electric signal representing conducted interference intensity from a power supply line; the single chip microcomputer performs digital signal processing on the electric signal, compares an obtained interference comprehensive value with a preset threshold value, and judges the state grade of electromagnetic interference; the state indicating lamp is connected with a GPIO port of the single-chip microcomputer and indicates corresponding interference states in different flicker modes. Real-time monitoring, intelligent evaluation and graded early warning of conducted interference of a power supply line are achieved, passive post-restart emergency processing is converted into active pre-interference protection, and stable operation of a blade server and continuous execution of key tasks under the maneuvering deployment condition are effectively guaranteed.

The utility model relates to the technical field of server signal coupling conduction, in particular to a detection device for preventing server signal coupling conduction interference, which comprises a shielding shell. The device further comprises a mounting base, the mounting base is fixedly connected into the shielding shell, a first driving motor is fixedly connected to the shielding shell, the output end of the first driving motor is fixedly connected with a first driving rotating shaft, the first driving motor is used for driving the first driving rotating shaft to rotate, and the first driving rotating shaft is rotationally connected to the shielding shell. The other end of the first driving rotating shaft is fixedly connected with a worm; according to the utility model, the server body is subjected to omnibearing detection through a plurality of driving pieces and detectors, high-frequency transient noise, low-frequency ground loop interference and radio-frequency signals coupled by a cable bundle can be captured at the same time, the situation that a traditional device has a detection blind area is avoided, a hidden interference source is found in advance, the system safety is enhanced, and the service life of the server is prolonged. The interference source can be quickly positioned, the troubleshooting time is shortened, and the method has both technical perspectiveness and economical efficiency.

The application discloses a wideband impedance modeling method for an extra-high voltage converter valve hall, and the method comprises the following steps: establishing an IGBT wideband impedance model based on the physical structure of an insulated gate bipolar transistor (IGBT) and the frequency response characteristics in the off state; testing the IGBT wideband impedance, identifying and optimizing the model parameters; establishing an MMC sub-module equivalent impedance model according to the current path and the conduction characteristics of the switching devices in different working states of the MMC sub-module; combining the MMC topological structure, the bridge arm reactor, the sub-module capacitor and the internal module connection relationship of the valve hall to construct a wideband impedance equivalent model which is expanded layer by layer from the device level, the sub-module level, the bridge arm level to the valve hall level; and analyzing the wideband conduction interference characteristics of the valve hall. The application can accurately represent the impedance characteristics and the electromagnetic interference propagation law of the extra-high voltage converter valve hall in a wideband range, and provides a model basis for the electromagnetic compatibility analysis of the valve hall, the insulation coordination design, the transient characteristic research and the optimization of the suppression measures.

The invention relates to the technical field of electromagnetic compatibility test and optimization, and discloses a shielding case performance data processing method based on electrical index perception. The method comprises the steps that after a shielding cover is deployed, an electric index data set of the shielding cover in a preset electromagnetic environment is collected, and conducted emission, radiation intensity, electrostatic discharge tolerance, surge immunity and harmonic current parameters are covered; performing multi-dimensional compatibility reconstruction processing on the data set to generate a performance characteristic spectrum including a conducted interference spectrum, radiation interference field distribution, electrostatic discharge sensitivity, a surge sensitive channel and harmonic distortion; calling a pre-constructed performance evaluation model to carry out full-band conformity analysis on the performance characteristic spectrum, and generating a performance standard criterion and a weak band identifier; and generating a performance optimization strategy set including structure enhancement, material adaptation and grounding optimization based on the weak frequency band identifier. According to the method, multi-dimensional comprehensive evaluation of the performance of the shielding case and intelligent positioning of weak links are realized, and targeted optimization is directly guided.

The utility model discloses an integrated EMC (Electro Magnetic Compatibility) suppression structure for a power supply module. The integrated EMC suppression structure comprises a composite shielding layer, a multi-stage filtering assembly and a low-impedance grounding structure, a metal shielding cover in the composite shielding layer is matched with a ferrite wave-absorbing layer, so that interference of different frequencies can be inhibited; the multi-stage filtering assembly is provided with different filtering circuits at the input end, the power device pin and the output end respectively, and broadband conducted interference suppression is achieved. The low-impedance grounding structure utilizes four layers of PCBs and conductive silica gel, reduces grounding impedance and gives consideration to heat dissipation, and through collaborative design of the composite shielding layer, the multi-stage filtering assembly and the low-impedance grounding structure, conduction and radiation interference are reduced, and meanwhile, the heat dissipation performance is taken into consideration.

The invention relates to the technical field of machining process monitoring, in particular to a power grid interference resistant lathe tool hitting detection method and system, and the method comprises the steps: synchronously collecting a mixed signal and a reference signal; respectively decomposing the mixed signal and the reference signal into a plurality of groups of modal components with an internal coupling corresponding relation among modals; actively identifying an interference mode component attributed to power grid conducted interference from multiple groups of mode components of the mixed signal; separating all the identified interference mode components from the mixed signal so as to reconstruct a pure processing state signal without the influence of the conducted interference of the power grid; and when abnormal changes occur on the basis of the preset characteristics of the pure machining state signal, it is judged that a tool hitting event occurs. According to the invention, by introducing the reference signal and adopting the multivariate signal synchronous decomposition algorithm, active and accurate identification and elimination of the power grid interference component from the signal source level are realized for the first time, and the technical problem of misjudgment caused by signal aliasing in the prior art is fundamentally solved.

The invention provides a common mode choke design method for reducing an effective value of leakage current of a motor, and aims at the field of motor driving and electromagnetic compatibility. Aiming at conducted interference caused by high switching frequency and the problems that existing research emphasizes common-mode voltage and neglects leakage current, a leakage current mechanism is firstly illuminated, a common-mode equivalent circuit is established, a bearing current influence is evaluated, and a nonlinear link is simplified; deducing a mathematical expression of the choking coil on leakage current suppression, optimizing secondary side resistance based on a root locus, and cooperatively adjusting iron core parameters; through simulation and comparison evaluation verification, the choke coil is optimized, the leakage current effective value is remarkably reduced, the EMC of the system is improved, and a feasible scheme is provided for precise suppression of high-frequency motor driving.

The invention discloses an electromagnetic compatibility damage evolution force-heat combined fatigue test method, which belongs to the technical field of electromagnetic testing, and is characterized in that an electromagnetic radiation environment and a conducted interference environment are loaded under a force-heat condition, and a conducted emission test, a conducted sensitivity test and a radiation sensitivity test are carried out; electromagnetic parameters, environmental stress data, test data and detection data of the tested electronic equipment are collected in real time, an environment-performance curve is drawn, and performance degradation boundary conditions of the tested electronic equipment are obtained. Based on a force thermal environment loading technology, an electromagnetic compatibility verification test of electronic equipment in a fatigue environment can be realized, and the electromagnetic compatibility and dynamic representation of signal integrity of the equipment in a fatigue damage accumulation process can be monitored and recorded in real time; therefore, the influence mechanism of the multi-stress-field coupling response on the key electrical performance indexes of the equipment is accurately disclosed, and theoretical support is provided for full-periodicity performance evaluation and anti-electromagnetic interference optimization design of high-reliability electronic equipment.

The invention relates to the technical field of optical detection, in particular to an interference measurement method and an interference measurement system. Due to the fact that the to-be-measured object and the standard module are adopted to conduct interference measurement at the same time, data of target parameters of the to-be-measured object are obtained, meanwhile, errors of the interferometer system can be monitored through interference measurement data of the standard module, calibration does not need to be conducted repeatedly when the to-be-measured object is measured, measurement time is shortened, and production efficiency is improved. Besides, as the standard module and the object to be measured are subjected to interference measurement simultaneously, when the measurement standard module of the interferometer system and the object to be measured are measured, the influence of the environment and the state change of the whole machine on measurement and calculation can be reduced, even if the parameters of the interferometer system are changed, the influence on the measurement standard module and the object to be measured is synchronous, and the measurement accuracy is improved. Therefore, the system error monitoring is more accurate, and the measurement result of the object to be measured is more accurate.

The invention discloses an electrical equipment anti-electromagnetic pulse performance detection device comprising a high-voltage pulse signal generation unit used for generating a high-voltage pulse signal; the path switching unit is electrically connected with the high-voltage pulse signal generation unit and is used for conducting path switching on the high-voltage pulse signal so as to realize switching of interference modes; and one of the cable system conducted interference simulation unit and the tested equipment radiation simulation unit is selected to be electrically connected with the path switching unit. According to the device and method for detecting the anti-electromagnetic pulse performance of the power equipment, the use limitation caused by the fact that a traditional detection device can only independently detect one anti-interference performance of the power equipment or a cable is improved, path selection is carried out through the radio frequency relay, the signals can be transmitted to the current injection clamp or the broadband antenna, the interference mode is switched, and the detection efficiency is improved. The utilization rate of equipment is improved.

This invention discloses a method for modeling the propagation characteristics of electromagnetic interference (EMI) in integrated primary and secondary distribution switches, belonging to the field of electromagnetic interference prediction and simulation technology. The method includes: obtaining a port response characteristic matrix through three-dimensional electromagnetic modeling and field-circuit co-simulation based on the electromagnetic coupling mechanism of a voltage sensor under high-frequency conducted interference; obtaining a disturbed output characteristic matrix of a current sensor through joint magnetic field-circuit modeling of a Rogowski coil based on the coupling path and frequency response characteristics in the port response characteristic matrix; and obtaining a system-level EMI propagation network matrix through field-circuit coupling modeling of the cable spatial magnetic field and multi-port crosstalk using the port response of the disturbed output characteristic matrix of the current sensor. Finally, a multi-physics integrated model of the entire integrated primary and secondary switch is obtained based on the coupling coefficient and propagation path in the system-level EMI propagation network matrix, resulting in a full-path simulation model of EMI propagation. This invention solves the problem that existing technologies cannot accurately model the EMI propagation characteristics of integrated primary and secondary distribution switches.

The application belongs to the technical field of electromagnetic test of DCS signal transmission loop, aims to solve the safety risk of directly using strong interference source in nuclear power plant site and the problem of disconnection between traditional laboratory test and site working condition, and discloses an electromagnetic interference test method for typical DCS signal transmission loop of nuclear power plant, screens the analog signal disturbed in the DCS signal transmission loop system of nuclear power plant as a test object, carries out interference source calibration, determines typical spectrum and intensity, determines the grounding mode of site DCS signal, determines the conductive interference sensitive threshold by frequency injection, carries out electric field radiation interference sweep test, carries out magnetic field radiation interference sweep test, carries out conductive interference sweep test, and determines the safe use distance of different frequency interference. The application provides effective standard for site interference test of nuclear power plant, can accurately evaluate the disturbance degree of weak signal, clearly defines the safe distance of site operation, and improves the working efficiency and operation safety of nuclear power plant.

The utility model relates to a kind of high-temperature-resistant anti-interference power cable for high-speed rail transit, belong to cable technical field, including cable body, cable body from inside to outside sequentially includes conductor, insulating layer, high-temperature-resistant filling layer, shielding layer, sheath layer, conductor gap fills heat-conducting gel;Shielding layer is composed of inner layer copper wire weaving shield and outer layer longitudinal coating tin copper band composite structure;The utility model's anti-interference ability is enhanced, effectively suppresses the conducted interference and radiation interference generated by frequency conversion system;Mechanical reliability improves honeycomb buffer layer absorption vibration energy, can prevent stress concentration, with higher dynamic bending number resistance;The utility model is provided with heat-conducting gel and honeycomb structure form double-channel heat dissipation system, can reduce working conductor temperature, prolong cable service life, and the utility model has strong environmental adaptability.

The invention discloses a visual cooperative calibration system and method based on a precision measurement technology, and particularly relates to the technical field of machine vision, and the system comprises an electromagnetic interference shielding module, an anti-interference data collection module, an anti-interference data processing module, a model measurement data collection module, an error compensation module, and a calibration result precision evaluation module. According to the invention, electromagnetic interference protection is constructed for core sensitive electronic components of the system, conducted interference on a power supply and a signal cable is suppressed, anti-interference parameters are acquired in real time, an active response mechanism for monitoring, identification and suppression is constructed, the electromagnetic compatibility and adaptability of the system are improved, the measurement accuracy is improved, and the measurement accuracy is improved based on the acquired anti-interference parameters. An error calibration influence model is established, error compensation is performed on visual image data and laser ranging data, whether a calibration result meets a preset precision threshold is judged, error correction is realized, environmental interference influence is eliminated, and the method has the advantages of high environmental suitability and high automation degree.