56results about How to "High reliability requirements" patented technology

The invention discloses a control method for adjusting the tunneling attitude of a shield tunneling machine, particularly relates to the field of attitude control of the shield tunneling machine, and aims to solve the problem that attitude deviation caused by underground environment change cannot be timely and effectively corrected in the tunneling process of the shield tunneling machine. The method comprises the following steps of: calculating membership degrees of horizontal deviation, vertical deviation and change rates of the horizontal deviation and the vertical deviation, extracting high-frequency and low-frequency characteristics, generating independent phase signals, and calculating a judgment coefficient by using a multi-dimensional data fusion and high-dimensional exponential integration method so as to dynamically adjust the weight of a fuzzy control rule base and realize adaptive optimization of PID (Proportion Integration Differentiation) gain parameters; a master control output signal is generated based on the updated PID parameters, the thrust of the partition oil cylinders is accurately adjusted, it is ensured that the posture of the shield tunneling machine is rapidly, accurately and stably adjusted under the complex environment condition, the control precision of the tunneling direction and the construction safety are improved, and the working efficiency is improved. And meanwhile, the overall posture correction capability of the shield tunneling machine is further enhanced through dynamic adjustment of the rolling angle.

The invention provides an integral forming method and device for a pressure accumulator diaphragm capsule, and the method comprises the following steps: sleeving a movable female die into a pipe blank part, and adjusting the distance between the movable female die and a fixed female die; a high-pressure fluid medium is introduced through an internal flow channel of the connecting rod, and the pressure and loading time of the high-pressure medium are regulated by a pressure regulating device; the positions of the movable core head, the fixed sealing head, the pre-expansion limiting die and the movable female die are kept immovable, and the pressure regulation and control device is adjusted to unload the pressure of the high-pressure medium; the pre-expansion limiting die is separated in the radial direction and rotates to be separated from the pipe blank part; the movable female die moves in the axial direction to form a single waveform; the movable female die moves progressively in the axial direction, and the movable core head moves in the axial direction as well; and forming of a second waveform and a subsequent waveform is completed. According to the method, the defects of welding deformation, weld joint gouges, weld joint surface oxidation color, weld joint black spots and joint internal oxide inclusion caused by a traditional welding method are overcome, the quality control difficulty in the production process is reduced, and the production efficiency and the production quality of the diaphragm capsule are remarkably improved.

The invention provides an automatic production system for measuring switch insulation. The automatic production system comprises a measuring switch positioning unit, a preprocessing unit, a cleaning and drying unit, an insulation spraying unit and an insulation verification unit which are sequentially arranged on a production line. The measuring switch positioning unit limits the position of an entering measuring switch, the placing position of the measuring switch is adjusted through an X-direction belt conveyor and a Y-direction belt conveyor which are arranged in sequence, and the output measuring switch is positioned and verified through a contour positioning module at the output position of the measuring switch positioning unit. When the detection contour is inconsistent with the set standard contour, starting an alarm; the pre-processing unit guides the positioned measuring switch into a locking plate to be fixed, then the preset position of the surface of the measuring switch is coated with cleaning glue, the cleaning glue is heated through an air heater after pasting is completed, and then the cleaning glue is taken down through a glue taking device and guided into the cleaning and drying unit.

The invention belongs to the technical field of adhesives, and discloses a low-precipitation chip-scale bottom filling adhesive with excellent bonding performance and a preparation method, the filling adhesive comprises the following components by weight: 2-4 parts of self-synthesized organosiloxane, 30-35 parts of epoxy resin, 1-3 parts of a coupling agent, 1-2 parts of black paste, 60-65 parts of a filler, and 10-15 parts of a curing agent. Compared with the conventional chip-level underfill adhesive, the product provided by the invention has higher bonding strength on a silicon wafer and an LMC substrate; and after being placed in a Uhast environment box for 192 hours, the adhesive still has excellent bonding strength on silicon wafers and LMC substrates under a high-temperature condition. In addition, the product also has the characteristics of excellent flowing property, low precipitation and good heat resistance, and can fully meet the requirements of operability and high reliability of chip integrated packaging.

The invention discloses a built-in double-feedback hysteresis solid-state switching circuit which comprises a triode, a first photoelectric coupler, a second photoelectric coupler and a field effect transistor, a resistor R2 is connected between an emitting electrode and a collecting electrode of the triode in parallel, and the input end of the resistor R2 is sequentially connected with a resistor R1 and a voltage stabilizing diode D1 in series. The input end of the voltage stabilizing diode D1 and the second pin end of the second photoelectric coupler are connected to the control end for power supply, the output end of the field effect transistor is connected with a voltage stabilizing diode D2 in parallel, and the output end of the voltage stabilizing diode D2 is connected with a power end for power supply. The circuit has a double-feedback hysteresis circuit function, the reliability of circuit control can be improved, the service life of the circuit is prolonged, and the circuit is high in reliability, long in service life, low in noise, free of sparks, free of electromagnetic interference, wider in application range and suitable for product equipment with requirements for power amplification conversion control.

The application discloses a protocol changing method and device, electronic equipment and a readable storage medium. The protocol changing method comprises the following steps: obtaining protocol changing content; the protocol changing content is used for describing at least one protocol changing operation; obtaining a protocol string sequence according to the protocol changing content; the protocol string sequence comprises a plurality of protocol strings, and each protocol string corresponds to one protocol changing operation; obtaining protocol elements in the protocol string sequence and a dependency relationship between the protocol elements, and constructing an abstract syntax tree according to the protocol elements and the dependency relationship between the protocol elements; obtaining target protocol changing code according to the abstract syntax tree, so as to change an original protocol according to the target protocol changing code and obtain a target protocol after the change. The application can obtain the target protocol changing code which can quickly and accurately change the original protocol.

The invention relates to a low-fault-energy micro-twin synergistic deformation cobalt-based alloy and a preparation method thereof, and belongs to the field of cobalt-based high-temperature alloys. According to the alloy, on the basis of Co-Al-W, Ti and Ta which are smaller than or equal to 4 wt% are added according to calculation of a first principle, and the stacking fault energy is controlled to be-95 mJ / m < 2 > to-89 mJ / m < 2 > (0K). Aiming at the defect of insufficient high-temperature plasticity of the gamma '-phase strengthened cobalt-based alloy, an electronic structure is accurately regulated and controlled through a first principle, intrinsic stacking fault energy is designed to reach an optimal negative value interval, a micro-twin mechanism is activated, dislocation slippage and micro-twin coordination is realized, and the problem of sudden plasticity drop caused by single deformation mechanism (dislocation slippage leading) and grain boundary weakening of a traditional alloy is solved; the high-temperature strength and the plasticity are synchronously improved.

The invention relates to a lightweight wall panel structure system and a construction method thereof, which is constructed by wall panels, in which connectors are pre-embedded or post-embedded, and the wall panels are connected to a main structure as a whole through the pre-embedded or post-embedded connectors; a plurality of wall panels are connected to form a whole wall through the pre-embedded or post-embedded connectors, and holes for installing doors, windows and various accessories are opened on the wall, and the wall panels are connected to the doors, windows and various accessories installed in the holes as a whole through the pre-embedded or post-embedded connectors; the invention utilizes connectors to form reliable connections between wall panels, between wall panels and the main structure, and between wall panels and doors, windows and various accessories, so as to form an integral wall with good integrity, excellent seismic performance, great rigidity and small deformation within the wall plane, thereby solving many problems and shortcomings existing in existing lightweight wall panels.

The invention provides a broadband gain positive slope amplitude-phase control multifunctional chip for a T / R assembly, which relates to the technical field of radio frequency integrated circuits and comprises a receiving channel, a transmitting channel, an equalization circuit, a numerical control attenuator, a numerical control phase shifter, a transmitting-receiving change-over switch module and a parallel control module. The parallel control module is used for outputting parallel control signals to the numerical control attenuator, the numerical control phase shifter and the transceiving change-over switch module; the equalization circuit is respectively connected with the receiving channel and the transmitting channel through the transmitting-receiving change-over switch module, so that a signal path of the receiving channel and a signal path of the transmitting channel multiplex the equalization circuit, the numerical control attenuator and the numerical control phase shifter; and the equalization circuit is of an on-chip integrated structure and is used for adjusting the gain of the receiving channel and the gain of the transmitting channel to present a positive slope characteristic relative to the frequency in a wide frequency band so as to compensate the frequency attenuation of an external device.

The utility model discloses a double-screen backlight structure which comprises a rubber shell, a bending line is formed on the rubber shell, a main screen display area and an auxiliary screen display area are formed on the rubber shell along the bending line, and the main screen display area and the auxiliary screen display area are movably connected through the rubber shell. A mounting base is arranged on the rubber shell where the main screen display area is located, and a telescopic air cylinder is arranged on the mounting base; display of two different screens is achieved through the same backlight structure, the two screens are assembled on the same rubber shell, the connecting structure is firmer, the consistency and stability of the light emitting effect can be guaranteed, the two backlight structures are designed on the same rubber shell, material management is convenient, the assembling time is short, and assembling is convenient. Manpower and assembly yield can be greatly saved, production efficiency is improved, backlight development time is shortened, light-emitting effect and brightness are improved, and high reliability requirements and consistency requirements of customers can be met.

The invention provides a transformer box body structure with a separation structure, a vehicle-mounted transformer and a railway vehicle. The box body structure is used for being installed on the outer side of a vehicle, a transformer coil structure is arranged in the box body structure, and a first separation structure and a second separation structure are arranged in the box body structure; a transformer coil structure is contained in a space defined by the first partition structure, the second partition structure, the box body structure and the box body wall. The cooling liquid in the coil cavity is used for being in contact with a coil in the transformer coil structure; the coil cavity is communicated with the liquid inlet accommodating cavity through a through hole formed in the first separation structure; the coil cavity is communicated with the connecting cavity through a through hole formed in the second separation structure; each of the first separation structure and the second separation structure comprises a baffle fixedly connected with the box body structure and an annular sealing structure, a gap is formed between the baffle and the box body structure, and the annular sealing structure is connected with the corresponding baffle.

The application relates to a visible light zoom camera, which comprises a bottom plate, a fixed support is arranged at the top of the bottom plate, a lens main body is mounted on the fixed support, a zoom cam is mounted on the outer side of the lens main body, a mirror group five, a mirror group four, a mirror group three, a mirror group two and a mirror group one are sequentially arranged on the inner side of the lens main body, a zoom cam pressing ring is arranged at one end of the zoom cam, a filter assembly is arranged at one end of the zoom cam at the end of the zoom cam pressing ring, and a detection plate assembly is mounted on the outer side of the filter assembly. The application has the beneficial effect that through the assembly and cooperation of various structures, stable work can be realized under extreme environments, the high reliability requirements of special fields such as military and security can be met, the equipment weight is obviously reduced through light weight design and modular structure, the assembly and maintenance process is simplified, and the long-term stability of imaging quality is ensured.

The invention discloses an unmanned aerial vehicle self-locking switch system and a control method thereof, and relates to the technical field of unmanned aerial vehicles. The system comprises a switch button, an auxiliary power module, a main power module, a self-locking unit, a control unit and an electric quantity display unit, stable startup and shutdown are achieved through dual-time-sequence button control that first pressing lasts for a first preset time and second pressing lasts for a second preset time in cooperation with a time-sharing cooperation mechanism of auxiliary power and main power, the self-locking unit locks the switch state, and the electric quantity display unit displays the electric quantity. And accidental on-off caused by signal jitter is avoided. The system is extremely low in leakage current in a shutdown state, effectively prevents battery over-discharge, has electric quantity display and state feedback functions, and remarkably improves the reliability, safety and user experience of the switch.

The utility model provides a clutch type electric push rod retreating device which comprises a fixed seat, a shell, a power motor, a lead screw, a push rod and a clutch mechanism, the shell is arranged on the fixed seat, the power motor is arranged in the shell and located on the upper side of the fixed seat, the lead screw is rotationally arranged on the side, away from the power motor, of the fixed seat, and the push rod is arranged on the shell. The lead screw is in power connection with the power motor, the outer circle face of the lead screw is sleeved with a lifting base, and the push rod is arranged in the shell in a sliding mode. According to the scheme, the clutch sliding rod drives the connecting tile to be far away from the outer circle face of the lead screw, then supporting force used for balancing counter-acting force on the push rod disappears, rapid rollback after touch is achieved, safety and reliability of equipment are improved, the situation that an electrical rollback mechanism cannot work normally due to circuit faults caused by long-time use is avoided, accurate control is achieved, and the service life of the equipment is prolonged. And the requirements of modern equipment and systems on high precision and high reliability are met.

The invention relates to modified fusible polytetrafluoroethylene as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a small-particle-size PTFE microemulsion as a seed through aqueous phase polymerization of tetrafluoroethylene monomers in a first polymerization reactor; and adding the seed emulsion, a tetrafluoroethylene monomer and a perfluoroalkyl vinyl ether comonomer into a second polymerization reactor, and initiating a copolymerization reaction on the surfaces of seed particles to realize molecular chain-level uniform compounding. In the reaction process, the growth process of a copolymer molecular chain is controlled by continuously supplementing monomers and accurately regulating and controlling the stirring rate. And condensing, washing and drying the obtained composite emulsion, carrying out melting granulation through strong shear extrusion equipment, and carrying out fluorination treatment to obtain a finished product. Compared with the prior art, the material prepared by the invention has obviously enhanced cracking resistance and flexibility.

The present invention provides a pump module and a solid-state laser having the same. The pump module includes: a pump source, which is two and arranged side by side to provide a first laser and a second laser; a fast-axis collimation element, which is arranged on the light-emitting side of the pump source, and is used to perform fast-axis collimation on the first laser and the second laser; a polarization beam combining element, which is arranged on the light-emitting side of the fast-axis collimation element, and is used to make the polarization directions of the first laser and the second laser after fast-axis collimation perpendicular to each other and combine them to obtain a third laser; a slow-axis collimation element, which is arranged on the light-emitting side of the polarization beam combining element, and is used to perform slow-axis compression and convergence on the third laser to obtain an excitation source. On the one hand, the above-mentioned pump module can improve the beam quality of the slow-axis direction of the pump beam, and on the other hand, the dual pump sources form mutual backup and high-performance margin, avoiding the abnormality or failure of the pump source caused by the random failure of the light-emitting point of a single pump source, thereby being able to meet the high-reliability use requirements.

This invention discloses a safe heating system and method for FTU batteries based on dual hardware adjudication, belonging to the field of low-temperature safety protection technology for power equipment. The system includes a battery body, a temperature sensing module, a heating module, a temperature adjudication module, an insulation shell, a power safety adjudication module, and a hardware AND gate adjudication actuator. The temperature adjudication module and the power safety adjudication module independently generate a heating enable signal and a safety enable signal, respectively. The input of the hardware AND gate adjudication actuator receives these two signals, and its output is connected in series to the power supply circuit of the heating module, configured to only conduct the circuit when both input signals are simultaneously valid. This method establishes an absolute priority veto right for power supply safety through hardware circuitry, fundamentally solving the major safety hazard of power loss in the core function of the feeder terminal unit due to battery heating power consumption during grid fault emergency modes.

The invention provides a vehicle-mounted transformer, a box body structure of the vehicle-mounted transformer and a railway vehicle. The box body structure is used for being installed on the outer side of a vehicle, a transformer coil structure is arranged in the box body structure, a heat dissipation structure is installed on the outer side of at least one box body wall of the box body structure, and a coil cavity and an outer side cavity are formed in the box body structure; the coil cavity is formed in a space for accommodating a transformer coil structure, and cooling liquid in the coil cavity is used for being in contact with a coil in the transformer coil structure; the cooling liquid inlet of the box body structure is communicated with the cooling liquid outlet of the box body structure through the coil cavity and the outer side cavity in sequence; when the box body structure is installed on a vehicle, the outer side cavity is located on the side, away from the vehicle, of the coil cavity. The cavity wall, away from the coil cavity, of the outer side cavity is a box body wall provided with a heat dissipation structure.

The automatic filter element grabbing device based on flexible limiting comprises a hollow screw rod, a lower mounting plate and an upper mounting plate, a grabbing assembly used for grabbing a filter element is arranged at the bottom end of the hollow screw rod, and a pressure sensor is fixedly connected to the lower surface of the upper mounting plate; a suspension mounting plate is fixedly connected to the bottom end of the pressure sensor, sliding rods are fixedly connected to the four corners of the upper surface of the lower mounting plate, sliding grooves matched with the sliding rods are formed in the four corners of the suspension mounting plate, baffles are fixedly connected to the top ends of the sliding rods, and springs are fixedly connected to the lower surfaces of the baffles. Through cooperation of the hollow screw rod, the lower mounting plate, the upper mounting plate, the grabbing assembly, a pressure sensor, a suspension mounting plate, a sliding rod, a sliding groove, a baffle, a spring and a driving assembly, the grabbing process is more stable and safer, and the grabbing device is suitable for application environments with higher requirements for safety and reliability in nuclear-grade waste filter element replacement scenes.

The application discloses a model inference acceleration method, system, device and medium of a vehicle-mounted edge device, the method comprising: by analyzing the inference task request and dynamically hot loading the model weight, mapping the pre-filling stage and the decoding stage to different CUDA streams for parallel processing, and introducing a forced preemption mechanism to ensure the real-time performance of high-priority tasks. Through paging memory management and KV Cache hierarchical replacement strategy, the memory resources are optimized, and combined with power consumption monitoring and bottom layer hardware instruction set optimization, the technical problems of low resource utilization, high-priority task delay and excessive power consumption of the existing vehicle-mounted edge device in multi-task concurrency are solved. The application can effectively improve the inference throughput and system stability of the model in the vehicle-mounted edge device, solve the technical problems of low resource utilization, high-priority task delay and excessive power consumption of the existing vehicle-mounted edge device in multi-task concurrency, and is suitable for complex computing scenarios of intelligent vehicles.

The invention provides a high-reliability computer system of a redundancy dissimilar architecture. The high-reliability computer system comprises a bus; the CPU module comprises a high-reliability CPU unit and a high-performance CPU unit which are connected through the bus; the power supply module is used for providing redundant power supply for the CPU unit; and the peripheral interface module is connected to the CPU unit through the bus. According to the invention, continuous operation of the system and uninterrupted execution of tasks can be ensured, and the stability and safety of the system are improved.

The invention belongs to the technical field of electronic engineering, and particularly relates to a multifunctional MCU automatic detection system, the detection system is used for MCU multi-item detection, the multifunctional MCU automatic detection system comprises an MCU system test platform, a functional environment adjusting module and a computer analysis module, the MCU system test platform is composed of a logic analyzer, an oscilloscope, a placement table and an adapter, and the logic analyzer is connected with the oscilloscope. The oscilloscope is electrically connected with the tested MCU through the adapter, stable connection between the MCU and the MCU system test platform is ensured, the functional environment adjusting module is composed of a temperature regulator, a humidity regulator, a vibration generator and a radiation generator, and more accurate and reliable environment simulation is achieved. The computer analysis module is composed of a test parameter program and a test environment function verification program, control steps are simplified, the automation effect of equipment is improved, the test environment function verification program is used for function detection of the tested MCU in different test environments, and high quality and reliability of products are guaranteed.

This invention discloses a thick stainless steel composite plate for nuclear power plants, relating to the field of iron and steel metallurgy technology, comprising a base nuclear power steel plate and a cladding stainless steel plate; the chemical composition of the base nuclear power steel plate, by mass fraction, is: C≤0.35%, Mn: 1.00%~1.80%, P≤0.020%, S≤0.025%, Ni: 0.30%~0.80%, Cr≤0.35%, with the balance being Fe and unavoidable impurities; the chemical composition of the cladding stainless steel plate, by mass fraction, is: C≤0.05%, Si≤1.00%, Mn≤3.00%, S≤0.040%, P≤0.055%, Cr: 17.0%~21.0%, Ni: 7.0%~13.0%, Nb: 0.010%~0.060%, with the balance being Fe and unavoidable impurities. This invention, through a wide range of composition design and optimized rolling and heat treatment processes, enables the composite plate to possess high strength, high toughness, high interfacial bonding strength, and excellent high and low temperature performance, meeting the requirements for use in key structural components of nuclear power plants.

The utility model belongs to electrical technical field especially relates to a net side filter cabinet based on phase change cooling, including the cabinet body, setting in the phase change cooling electric reactor, filter capacitance, filter electric reactor, filter resistance, current sensor, circuit breaker, brake resistance, lightning arrester in the cabinet body, the phase change cooling electric reactor is fixed in the left lower part in the cabinet body, filter capacitance, filter electric reactor, filter resistance are fixed respectively in the phase change cooling electric reactor directly above, the circuit breaker is fixed in the right upper part in the cabinet body, the lightning arrester is fixed in the right side of cabinet body, and brake resistance is fixed in the right side of cabinet body through the insulating structural member, the phase change cooling electric reactor, filter resistance all adopt phase change cooling heat dissipation, and the gas collecting pipe of phase change cooling electric reactor, the liquid return pipe of phase change cooling electric reactor, the gas collecting pipe of filter resistance, the liquid return pipe of filter resistance are fixed on the cabinet body. Advantage: can effectively insulate the high salt fog, high humidity air in tower drum or fan bin, improves the service life of electrical components and structural components in the cabinet.

The present invention provides an accumulator diaphragm box integral forming method and device, including: inserting a movable die into a tube blank part, adjusting the distance between the movable die and the fixed die; introducing a high-pressure fluid medium through the internal flow channel of the connecting rod, and the pressure and loading time of the high-pressure medium are adjusted by a pressure control device; keeping the movable core head, the fixed head, the pre-expansion limit mold and the movable die in position, and adjusting the pressure control device to unload the pressure of the high-pressure medium; the pre-expansion limit mold is separated and rotated radially and separated from the tube blank part; the movable die moves axially to form a single waveform; the movable die is progressively displaced axially, and the movable core head is also displaced axially; and the second and subsequent waveforms are formed. The present invention avoids welding deformation, weld scratches, weld surface oxidation color, weld black spots and internal oxidation inclusion defects caused by traditional welding methods, reduces the difficulty of quality control in the production process, and significantly improves the production efficiency and production quality of the diaphragm box.

The invention discloses a fault-tolerant interleaving DC-DC converter and a control method, the fault-tolerant interleaving DC-DC converter comprises N + 1 phases of interleaving Buck converters, the N phase is a main power phase, and the 1 phase is a redundant power phase; the MOSFET matrix switch and the voltage input end of each phase Buck converter are respectively connected with the input bus through an MOSFET tube, and the voltage output end of each phase Buck converter is connected with the output bus; the first driving circuit is connected with the grid electrode of the MOSFET tube; the second driving circuit is connected with the driving end of the Buck converter; the fault detection circuit is used for monitoring the drain-source electrode voltage of a power MOSFET in each phase of Buck converter in real time and outputting a fault signal when an overcurrent or short circuit fault is detected; and the controller is connected with the first driving circuit, the second driving circuit and the fault detection circuit. The technical problems that an existing fault-tolerant scheme is low in switching speed, high in size cost and sudden in output ripple are solved.

The application discloses a railway power distribution network fault information automatic diagnosis and positioning method and system, belongs to the technical field of power distribution fault diagnosis and positioning, and comprises the following steps: generating an auxiliary classification generative adversarial network, obtaining a standardized training data set balanced in categories and performing preprocessing; mapping the preprocessed data in the standardized training data set into a snowflake-shaped SDP image in a two-dimensional polar coordinate system, inputting the SDP image into a fault diagnosis model based on a deep convolutional neural network, and outputting a fault section and a preliminary fault distance; constructing a physical circuit model of a railway power distribution network distribution parameter, and calculating a theoretical simulation voltage and a simulation current by using a transmission line equation; starting iteration correction based on the Pearson correlation coefficient of each data, and outputting a diagnosis result. Through the fusion of data enhancement, feature transformation, intelligent diagnosis, physical inversion checking and topological adaptive adjustment, the application realizes high-precision, high-reliability and self-adaptive fault information automatic diagnosis and positioning.

This invention belongs to the field of thermal spraying preparation technology, specifically relating to a Ti-containing spraying powder and its preparation method. The preparation method of the Ti-containing spraying powder provided by this invention includes the following steps: mixing TiC powder and WC powder to obtain a mixture; subjecting the mixture to high-temperature chemical treatment, then ball milling and sieving to obtain a chemically treated powder; mixing the chemically treated powder, nickel powder, cobalt powder, a forming agent, and water, and then wet ball milling; spray-drying the ball-milled slurry and sieving to obtain a spray-dried material; and sintering the spray-dried material to obtain the Ti-containing spraying powder. The Ti-containing spraying powder provided by this invention can effectively reduce internal defects in the coating, achieve low porosity and high density, effectively improve the wear resistance of the coating, and also possess excellent bonding strength.

The application provides a power communication network communication management method based on network slices, and belongs to the technical field of communication networks, and specifically comprises the following steps: dividing a power distribution area according to the positions of communication base stations, dividing different network slices of power internet of things devices according to the types of the power internet of things devices in the power distribution area, and determining the distribution network bandwidth of different network slices of power internet of things devices and the distribution network bandwidth of network slices according to the communication reliability requirements of different network slices of power internet of things devices, so that the communication reliability of the power communication network is further improved.

The application is a lithium battery management method for aircraft emergency evacuation power supply guarantee, and relates to the technical field of aviation emergency power supply, comprising: obtaining a plurality of electrical parameter signals and acoustic emission signals in a battery pack, and after testing the acoustic emission signals, fusing the characteristic parameters of the electrical signals and the acoustic emission signals, and cross verifying the health state and internal short circuit fault of the battery cell.In the application, the multi-modal perception fusion of the electrical parameters and the acoustic emission signals, combined with the four-layer acoustic emission signal testing mechanism, breaks through the limitations of the traditional battery management system which relies on a single electrical signal; on the one hand, it can accurately capture the microscopic faults such as lithium dendrite growth and internal short circuit in the battery cell; on the other hand, based on the fusion algorithm of D-S evidence theory or fuzzy logic, the multi-source evidence weight is dynamically allocated, which can early warn the battery health decline, ensure that the lithium battery can start instantaneously and supply power stably under extreme working conditions during the aircraft emergency evacuation, and meet the high reliability requirements of the power supply in the aviation field.