50results about How to "Achieve fine control" patented technology

The invention relates to a display screen backlight brightness adjusting method and system based on a Mini QLED technology. The method comprises the following steps: dividing a display image signal into a brightness signal, a chrominance signal and a saturation signal, and generating image feature data; performing sub-pixel-level boundary detection to obtain a plurality of initial backlight sub-regions, and calculating region brightness distribution data; executing region clustering operation and region merging to obtain a plurality of target backlight sub-regions and calculating backlight partition mapping data; carrying out nonlinear feature transformation, and calculating backlight unit control data of the Mini LED backlight unit; outputting the backlight compensation amount of each target backlight sub-region by adopting a deep Q network; and performing real-time feedback correction, calculating a deviation value between an actual display parameter and a target parameter of each target backlight sub-region, and outputting a backlight optimization control signal. According to the invention, the backlight brightness is accurately adjusted, and the consistency of the display effect is improved.

The invention relates to the technical field of artificial intelligence, and discloses a speech synthesis method based on hierarchical emotional distribution, which comprises the following steps: acquiring audio data and text transcription, segmenting audio into phoneme, word and sentence-level speech units, extracting acoustic characteristics such as pitch, speed and rhythm, generating an emotional distribution vector by using a pre-training model; the method comprises the following steps: processing text transcription to generate text embedded information, combining an emotion distribution vector, the text embedded information and acoustic features, generating rhythm features through a variable converter, generating a Mel-frequency spectrogram by a decoder based on the rhythm features, and converting the Mel-frequency spectrogram into a time domain audio signal by a vocoder and outputting the time domain audio signal. According to the method, the audio data are hierarchically segmented into phonemes, words and sentences, the acoustic features, the emotion distribution vectors and the text embedding information are combined, and the rhythm features are generated through the variable converter, so that fine control over emotion expression is achieved, and the naturalness and emotion expressive force of speech synthesis are remarkably improved.

The invention provides a method for determining a mixing ratio, a storage medium and an electronic device, and the method comprises the steps: determining particle attribute parameters of a target material, and obtaining the particle attribute parameters of the target material under the condition of obtaining simulation data corresponding to mixing equipment; determining a first contact parameter of the target material and the mixing equipment based on an equipment intrinsic parameter and a particle attribute parameter in the simulation data, and determining a target mechanical basic model of the target material matched with a motion attribute under the condition that the motion attribute of the mixing equipment input by the target object is received, inputting the particle attribute parameter, the first contact parameter and the target mechanical basic model into a preset engineering application, and setting a particle generation strategy corresponding to the mixing equipment based on the mixing demand of the target object in the preset engineering application to obtain a to-be-operated simulation engineering application file, and operating the to-be-operated simulation engineering application file. And generating the target ratio parameter of each sub-strategy in the particle generation strategy. The problem that the coating is not uniform due to inappropriate ratio in the related technology is solved.

The invention relates to the technical field of intelligent power grids, in particular to a power chip computing power resource scheduling method, system and device and a medium, and the method comprises the steps: obtaining original computing power resource data needed by a power chip to execute a computing task from a power system in real time, and preprocessing the original computing power resource data to obtain to-be-processed computing power resource data; according to the to-be-processed computing power resource data, obtaining the total load capacity of service computing data; in response to the chip computing power distribution instruction, determining a fitness function according to the total load of service computing data, and obtaining an optimal computing power resource scheduling strategy by using a firefly algorithm according to the fitness function; and dynamically scheduling the computing power resources on the power chip according to the optimal computing power resource scheduling strategy, and allocating the computing power resources to different computing tasks. According to the method, the calculation power resource of the power chip is optimized and dispatched by adopting the firefly algorithm, so that the resource utilization rate is improved, and the adaptability and reliability of the power chip in a complex power grid environment are enhanced.

The embodiment of the invention provides a cloud private line connectivity test method and device, electronic equipment and a storage medium. A virtual switch is installed on a simulation node; constructing a first virtual network interface and a second virtual network interface for installing the virtual switch; creating a network namespace for simulating the network environment of the client side equipment at the simulation node; adding the second virtual network interface to the network namespace, and simulating the second virtual network interface to configure network information for the network namespace; adding the first virtual network interface to an integrated bridge, and creating a flow table on the integrated bridge; executing flow receiving and transmitting through the flow table, the network information and the network namespace, and generating flow receiving and transmitting state information; according to the method, the connectivity of the cloud private line between the cloud host and the network namespace is detected based on the traffic transceiving state information, the connectivity of the cloud private line is tested on the basis of not excessively depending on a test environment, the test cost is reduced, and the test efficiency is improved.

The invention provides a method and a system for regulating and controlling welding current of an inverter resistance welding machine in real time. The method comprises the following steps: welding and acquiring a primary side current signal of a transformer; carrying out segment processing on the current signal of the current cyclic wave; processing and calculating a fast rising section; judging a starting point of a slope section; calculating the target peak current of the slope section; calculating a current cyclic current statistical value; and adjusting the target peak current of the next cycle. Primary side current signals of the inverter type welding machine are collected in real time, segmentation processing and characteristic quantity extraction are conducted on the current signals, the starting point of the slope section is judged, and the target peak current of the slope section is calculated according to a current target value; when the current of the slope section reaches the target peak current, the welding current is cut off; calculating a current statistical value in the current cycle, comparing the current statistical value with a current target value, and adjusting the target peak current of the next cycle; and the steps are repeated until the welding power-on time reaches the preset value, and therefore real-time fine control over the welding current is achieved.

The invention relates to the technical field of photoelectric precision instruments, and particularly discloses medical beauty femtosecond laser equipment and a processing method thereof. The device integrates a femtosecond laser, an automatic optical attenuator, an SLM spatial light modulator, a lens system, a CCD camera, an image processing unit and a control unit, and realizes high-precision and personalized improvement of a target object. According to the device, a laser beam is generated through a femtosecond laser, energy is adjusted through an automatic optical attenuator, the phase is modulated through an SLM spatial light modulator to form a multi-focus pattern array, and finally the multi-focus pattern array is tightly focused to a target object through a lens system. The CCD camera shoots an image of a target object, the image processing unit acquires depth information, and the control unit adjusts laser beam parameters according to the information, so that personalized improvement is realized. The machining method comprises the steps of laser beam generation, attenuation, phase modulation, focusing, image shooting and processing, parameter adjustment and the like, and the improved accuracy and safety are ensured.

The invention discloses a TCAM (Ternary Content Addressable Memory) high-speed method and system based on an FPGA (Field Programmable Gate Array). The TCAM high-speed method comprises the following steps: capturing a data packet transmitted through a network interface by using hardware logic of the FPGA; preprocessing the data packet; the FPGA extracts a data part in the data packet according to the information in the packet header; key information of the preprocessed data packet is sent to a TCAM for searching; checking a matching result output by the TCAM, and confirming whether a matched table item is found or not; the FPGA determines a subsequent processing path of the data packet according to a search result of the TCAM; different shunting strategies are configured; and updating and optimizing table items of the TCAM according to the search result and the execution effect. The hardware logic of the FPGA can capture and process network data packets at a high speed, and high-speed classification and search of the data packets are realized in combination with the parallel comparison capability of the TCAM; the parallel processing capability of the FPGA enables the system to process a plurality of data packets at the same time, and the overall processing throughput is improved.

The invention discloses a freezing method for a load record of an intelligent flexible adjusting unit. According to the method, system configuration is analyzed and adjusted according to historical data, different scenes are rapidly adapted, and system adaptability and response efficiency are improved; the real-time current, voltage and electric energy quality are deeply analyzed, the load trend is predicted, and the adjustment accuracy and the intelligent decision-making capability are enhanced; recording intervals are automatically adjusted according to load changes, time periods and user characteristics, and fine control over data recording is achieved; non-critical data are intelligently identified and preferentially compressed, storage distribution is optimized, and the processing efficiency is improved; multi-format packaging is supported, and interoperability and data sharing convenience are improved; it is ensured that key data can be recorded outside an unconventional interval, response to abnormity and predictive maintenance is enhanced, and data integrity is ensured; through double verification, encryption and digital signature, the data security is ensured; efficient backup and disaster recovery are realized, data persistence and rapid recovery are ensured, and data security and service continuity are ensured.

The invention discloses a biomass-based activated carbon material, and relates to the technical field of activated carbon material preparation, and the biomass-based activated carbon material comprises the following components by weight: 1 part of peony seed meal; 1-2 parts of cedar bark; the preparation method of the biomass-based activated carbon material specifically comprises the following steps: S1, drying, crushing and mixing peony seed meal and cedar bark to obtain a mixed raw material A; s2, putting the mixed raw material A into an evaporator, and performing low-temperature evaporation to obtain a mixed raw material A with high sulfate content; s3, performing ultrasonic impregnation and drying on the mixed raw material A with high sulfate content; carbonizing and activating to obtain a mixed carbon material B; s4, mixing the mixed carbon material B with sodium amide, and activating while isolating air to obtain a biomass-based activated carbon material; the problem of unstable quality of the biomass-based activated carbon material caused by unstable quality of the desulfurization waste liquid in the prior art is solved, the biomass-based activated carbon material with stable quality is prepared, the pore structure of the biomass-based activated carbon material is further optimized, and the adsorption performance is improved.

The present application relates to the technical field of strain sensor detection calibration, and particularly relates to a sub-micron FBG strain sensor calibration device and a calibration method. In terms of the calibration device, the first guiding clamping mechanism and the second guiding clamping mechanism realize synchronous displacement movement by relying on the guiding action of the first force bearing plate and the second force bearing plate respectively, the micro-displacement required for calibration operation is generated by changing the clamping interval of the first guiding clamping mechanism and the second guiding clamping mechanism, and combining the geometric constraint relationship of the first force bearing plate and the second force bearing plate fixed at a preset angle. During the calibration operation, the displacement detection mechanism collects real clamping interval change data of the first guiding clamping mechanism and the second guiding clamping mechanism in real time, the control mechanism dynamically corrects the output parameters of the micro-displacement driving part according to the real-time displacement feedback signal, realizes the sub-micron high-precision closed-loop control of the calibration displacement, and is beneficial to greatly improving the fitting accuracy of the wavelength parameters and the strain response parameters of the FBG strain sensor.

This invention discloses a method for monitoring the state trends of hydropower units based on two-stage signal decomposition and the IBiLSTM model. The method involves collecting vibration signals from the hydropower units for preprocessing; constructing the ITGCOA optimization algorithm and designing a fitness function; using the ITGCOA optimization algorithm to adaptively optimize the SVMD and BAACMD models, achieving initial decomposition of the preprocessed signal and secondary decomposition of the sub-mode component with the highest center frequency obtained from the initial decomposition; calculating the fuzzy entropy values ​​of the remaining sub-mode components for reconstruction; and fusing the high-frequency feature sub-sequences obtained from the secondary decomposition with the reconstructed feature sub-sequences to construct the input sequence of the prediction model. This input sequence is then used to construct the IBiLSTM prediction model for monitoring the state trends of hydropower units, achieving high-precision prediction. Compared with existing technologies, this invention improves the efficiency and accuracy of hydropower unit state trend prediction, accurately warns of abnormal unit operating conditions, ensures the safe and stable operation of the units, and improves the overall efficiency of the power plant.

The invention relates to the technical field of forklift control, in particular to a multi-joint control method based on a forklift, which comprises the following steps: getting floor tiles and inclining a pallet fork to the maximum caster angle; the pallet fork is shaken so that the floor tiles can be stacked in a preset shape; determining a first distance and a second distance between the brick paving machine and the brick paving starting point to determine a distance difference, and determining the accuracy of the real-time coordinates according to the distance difference; responding to the real-time coordinates to determine feeding coordinates of the forklift; the feeding advancing speed of the forklift is controlled in response to the feeding coordinates and the brick paving speed; the characterization state of the distance between the paver and the forklift during feeding is determined, and the feeding matching state between the forklift and the brick paving machine is determined in combination with the brick paving speed; an adjusting strategy is determined according to the feeding matching state of the preset number of times; and determining the jitter characterization trend of the forklift on the paved pavement so as to determine the pressure of the road roller. According to the invention, multi-equipment combined control among the forklift, the brick paving machine and the road roller is realized, the overall construction efficiency is improved, and the construction difficulty and complexity are reduced.

The invention relates to the technical field of flow valves, and provides a flow valve for testing and a control method thereof.The flow valve for testing comprises a power mechanism, a supporting mechanism and a barrel mechanism, and is characterized in that the supporting mechanism comprises a supporting frame, the power mechanism is installed at one end of the supporting frame, and the power mechanism comprises a power mechanism body; the power mechanism is provided with a connecting rod, one end of the connecting rod penetrates through the top of the supporting frame and is arranged in an inner cavity of the supporting frame, a piston rod is arranged at the end, arranged in the inner cavity of the supporting frame, of the connecting rod, the barrel mechanism comprises a barrel, and the barrel is provided with a third through groove used for containing the piston rod. The position of the piston rod can be adjusted through a power source, and due to the fact that one corner of the conical groove perpendicularly points to the bottom of the cylinder body, when the piston rod just starts to ascend, only a very small part of liquid can pass through the conical groove, and therefore fine control over the initial flow can be achieved.

The present invention provides a method for enhancing Tibetan image data in natural scenes based on Markov theory, including: identifying input information semantics; defining a Markov process, which gradually adds noise disturbance to training data to form a Markov chain; defining an inverse Markov process, which uses a neural network model to predict and remove disturbances according to the current disturbance image and time step, and gradually restore the original image; training the neural network model to maximize the conditional probability of the inverse Markov process; generating an image, using the result obtained after the Markov process is processed as the initial state matrix, and then traversing the Markov chain in reverse, using the neural network model to gradually restore, and finally obtaining the generated image. The present invention can avoid common adversarial training, mode collapse, gradient disappearance and other problems in the generation model, and can achieve efficient parallelization and scalability, and the generated image has high resolution and diversity.

The invention belongs to the technical field of fluid mechanics and flow control, and discloses a multi-target intelligent control system and method for hydrodynamic performance of an underwater vehicle, and the system is characterized in that a control target is of an axisymmetric body structure, the tail part of the control target is provided with at least one active blowing jet outlet, and an execution unit is connected with the jet outlet of the control target; the jet flow blowing state is adjusted according to the control instruction output by the control logic module. The sensing unit is arranged on the surface of the tail of the axisymmetric body and used for collecting key parameters reflecting the flow control effect and the energy cost. And the control logic module is used for receiving the flow information output by the sensing unit and carrying out real-time or periodic optimization on the control parameters based on a preset optimization algorithm. And the optimized control parameters are sent to the execution unit by the control logic module, so that the system forms closed-loop operation. According to the technical scheme, collaborative optimization of resistance reduction and blowing energy consumption reduction can be achieved, and the adaptability and overall energy efficiency of the control system to different working conditions are improved.

The invention provides a switching power supply protection control device and application. The switching power supply protection control device comprises a fault signal voltage sampling circuit, a short-circuit protection circuit based on a pulse width modulator and a soft start circuit. One end of the fault signal voltage sampling circuit is connected with an output voltage Vo of the switching power supply, the other end of the fault signal voltage sampling circuit is connected with a COMP end of a pulse width modulator in the short-circuit protection circuit based on the pulse width modulator, and the other end of the short-circuit protection circuit based on the pulse width modulator is connected with one end of the soft start circuit; the other end of the soft start circuit is connected with the SS end of the pulse width modulator in the short-circuit protection circuit based on the pulse width modulator; the short-circuit protection control device based on the TL431 remarkably improves the stability, reliability and safety of a switching power supply system, has wide application prospects and practical value, and solves the problems that a traditional switching power supply protection circuit is poor in protection precision, complex in circuit and single in function.

This utility model discloses a temperature control valve for air compressors, specifically relating to the field of temperature control valve technology. It includes a valve body with a valve cover at the bottom. Multiple bolts are threaded onto the outer side of the valve cover, and spring washers are placed on the outer sides of the bolts. An inlet is located inside the valve cover, a first outlet is located at the top of the valve body, and a second outlet is located on one side of the valve body. A valve core support is installed inside the valve body, along with an adjustment mechanism and a sealing assembly. Compared to existing technologies, this utility model, through its adjustment mechanism, allows the valve core cover to move according to the different temperatures of the temperature bulb. This enables the liquid to automatically adjust its flow direction under different temperature conditions, rationally distributing fluid according to actual temperature requirements, preventing overheating or overcooling of the system, thereby improving the stability and reliability of the entire system.

The present application relates to a kind of selective deoxidation chlorination method of alcohol compound, belong to the technical field of organic synthesis.The method uses the solid chlorinating agent shown in structural formula (I), under the joint action of organic solvent and base, it is reacted under mild conditions at 0-50 ℃, at least one hydroxyl group in alcohol compound can be converted into chlorine atom with high efficiency and high selectivity.The stability of the used chlorinating agent is good, and the safety is high, and it is convenient to store and transport, which overcomes the use limitation of traditional chlorine, sulfonyl chloride and other high-risk reagents.The method is suitable for primary, secondary and tertiary hydroxyl groups, has the advantages of short reaction time, simple operation and wide substrate applicability, and the obtained chlorinated product can be used as an important pharmaceutical and chemical intermediate.The present application effectively solves the problems of existing chlorination method, such as high toxicity, low selectivity and harsh reaction conditions, and has good application prospect.

The utility model discloses an automatic dust removal wood sanding machine, including dust removal box, the top fixed connection of dust removal box has the grinder unit, the surface intercommunication of dust removal box has the electric dust collector of grinder unit back, the transmission end of grinder unit is equipped with the transmission roll, the surface bushing of transmission roll has the sanding belt, the top of sanding belt places the wood, the both sides of grinder unit front are all fixedly connected with the connecting block, the inboard of connecting block is swingly connected with first reciprocating screw through bearing, the surface screw thread connection of first reciprocating screw has the screw bush, the utility model discloses through the direct intercommunication of electric dust collector with the dust removal box below grinder unit, and accurate setting is at the back of grinder unit, realizes the direct, efficient, close -range extraction of the wood chip of polishing source generation, and the pressing plate can replace the manual fixation to the wood, makes the operator completely separate from the wood chip generation area, eliminates the respiratory tract harm risk from the root.

The invention discloses a digital human generation method and system combining acoustic driving and personality enhancement. The method comprises the following steps: carrying out multi-dimensional perception separation and semantic feature coding on an audio provided by a user by utilizing an autoregressive continuous action generation module based on acoustic driving, and further carrying out linkage generation of multi-modal face and trunk continuous actions through context association coding and decoding; a diffusion generation module based on structure strengthening is utilized to perform diffusion generation of the digital human video according to the generated face and trunk continuous actions, and pixel-by-pixel trajectory tracking and correction are performed to optimize the digital human video quality; and constructing a customized fusion scheme according to a multi-scene feature element set such as user audio, character, habitual language and the like by utilizing a character-based audio and picture style guiding module, and obtaining a digital human video with user characteristics. According to the method, the generation quality and authenticity of the digital human video can be improved from the aspects of semantic-action consistency, digital human image quality and the like.

The invention discloses a preparation method of a titanium-based amorphous brazing wire. The method comprises the following steps: 1, smelting a high-purity metal raw material to obtain a master alloy ingot; 2, putting the master alloy ingot into an induction melting crucible of a vacuum melt-spinning machine; 3, vacuumizing and then filling a protective atmosphere; and fourthly, the master alloy ingot is heated, meanwhile, the copper roller starts to rotate, a magnetic field is added, high-purity argon is filled, pressure difference is formed, the melt of the master alloy ingot is sprayed out of a nozzle at the bottom of the induction melting crucible and rapidly cooled on the surface of the rotating copper roller, and the titanium-based amorphous brazing wire is formed. The vacuum single-roller rapid quenching method is adopted, technological parameters are strictly controlled, the magnetic field intensity is guided, fine control over the melt movement track is achieved, the titanium-based amorphous brazing wire high in purity, good in toughness and good in wettability is prepared, and the preparation method is simple, high in efficiency and suitable for industrial production. Complicated working procedures such as forging, rolling, heat treatment and drawing in a traditional technology and loss in the process are avoided, cost is reduced, and the method is suitable for the field of titanium-based brazing filler metal.

The invention discloses an aquatic product cold-chain logistics conveying and transferring system, and belongs to the technical field of aquatic product transportation. The aquatic product cold-chain logistics conveying and transferring system comprises a transferring and conveying frame, an anti-falling barrel cover is arranged at the top of the transferring and conveying frame, a feeding butt strap is arranged at the top of one end of the transferring and conveying frame, and a buffering and transferring table is arranged at the other end of the transferring and conveying frame; real-time data of passing frozen products are collected and analyzed to generate related signals, fine control over frozen product transportation is achieved, the speed of air supply equipment and the speed of a conveying belt are adjusted according to comparison between the data collected in real time and a preset threshold value, high-pressure airflow is provided through the pneumatic circulation design, a triangular opposite impact type airflow resistance area is formed, and the conveying efficiency of the frozen products is improved. The device can effectively clean impurities of frozen products, can guarantee stable and safe transportation for overweight or oversized frozen products through speed reduction design and elastic buffering, and realizes flexible pushing and movement of the retained frozen products and inclination, extension and contraction of the frame body.

The invention provides a ferroelectric ceramic material with a large dielectric constant in a wide temperature range and a preparation method of the ferroelectric ceramic material. The ferroelectric ceramic material is prepared by laminating and compounding BZT-xBST ceramic blanks of six critical ferroelectric phase change components (x is 0.1, 0.2, 0.3, 0.4, 0.6 and 0.8) in a system of the ferroelectric ceramic material; the ferroelectric ceramic material is prepared by laminating and compounding six different components of BZT-xBST ceramic blanks, the high dielectric property is successfully realized in a wide temperature range of 5-55 DEG C, and the high dielectric constant (epsilon gt; 21448), the ferroelectric ceramic material can show excellent performance in various application scenes such as capacitors, sensors, energy storage devices and the like, and the blank area that the wide temperature range and the high dielectric constant of the existing ferroelectric ceramic material are difficult to obtain at the same time is filled.

The utility model discloses a multi-mode numerical control high-temperature wire thermal shrinkage tunnel furnace which comprises a wire conveying device, a thermal drying device and a control module. The control module is used for driving the wire rod conveying device to execute at least one motion mode, and the motion mode comprises constant-speed motion, positioning motion, interval motion and back-and-forth motion; the constant-speed motion realizes continuous and constant-speed conveying of wire rods, and guarantees the stability of a conventional thermal shrinkage process; the positioning movement enables the wire rod to be accurately suspended below the hot drying device, so that local intensified heating is realized; the multiple wires are parked according to preset intervals through interval movement, and accurate positioning is ensured; the reciprocating motion enables the pyrocondensation material of the wire rod to be heated at multiple angles, and heating dead angles are eliminated. The hot air generator is directly in butt joint with the hot air outlet part, heat loss and energy waste in a hot air transmission path can be reduced, the heat conduction efficiency is improved, and hot air acts on a target area more quickly, intensively and stably.

According to the leveling assembly for blade coating and the thin film preparation device, the blade coating part and the distance measuring part are fixed to the mounting cross beam, the relative position between the blade coating part and the bearing frame can be adjusted through the position adjusting part, and after the bearing frame is fixedly mounted, the distance between the blade coating part and the target position can be accurately adjusted and controlled; the moving stability of the flattening assembly is realized through the translation module, and the film quality is ensured by combining a film forming surface; and the curing temperature of the thin film is precisely regulated and controlled through the temperature control component. Through introduction of the distance measuring part and the temperature control part, processing parameters in the film preparation process are accurately controlled, no extra transfer part or device is needed, and the film preparation process is simplified. By integrating multiple functions, the operation simplicity and convenience of the film preparation process are improved, and the practicability is remarkably enhanced. According to the structural design of the device, preparation process parameters are accurate and controllable, and meanwhile the performance and efficiency of the device are improved.

The invention discloses a fuel cell control method and device, electronic equipment and a storage medium, and relates to the technical field of batteries, and the method comprises the following steps: obtaining a real-time phase angle of electrochemical impedance of a fuel cell; when the real-time phase angle is within a first preset phase angle range, the real-time phase angle is within a second preset phase angle range by adjusting the stack temperature, and the second preset phase angle range is a subset of the first preset phase angle range; and when the real-time phase angle is not in the first preset phase angle range, adjusting the cathode stoichiometric ratio and the anode stoichiometric ratio to enable the real-time phase angle to be in the first preset phase angle range. According to the invention, the real-time phase angle of the electrochemical impedance is taken as a core index, and the stack temperature and the stoichiometric ratio are adjusted through hierarchical optimization, so that the power generation performance and the reliability of the fuel cell are improved, and the service life of the cell is effectively prolonged.

The invention discloses a steam heat release control method and system for modularized fused salt energy storage, and relates to the technical field of fused salt energy storage, and the method comprises the steps: building a BP neural network model of a modularized fused salt energy storage and heat release control system, and training the BP neural network model; defining output errors after normalization processing, and analyzing the BP neural network model according to the output errors; and processing the analyzed BP neural network model by adopting a variable rate regulation technology, establishing an actual object mathematical model opposite to the BP neural network model, and completing steam heat release control of modular fused salt energy storage. The steam heat release control precision and response speed of the modularized fused salt energy storage system are effectively improved, the stability and reliability of the control system are ensured, fine control over the frequency of the fused salt pump is achieved, the heat exchange process of fused salt and water vapor is optimized, the overall efficiency of the energy storage system is remarkably improved, and energy loss is reduced.

The present invention discloses a rear impact test device for a plastic fuel tank and a test method thereof, which relates to the field of plastic fuel tank testing, and includes a test track and a monitor fixedly connected to one side of its top, wherein one side of the test track is fixedly connected to a rotating shaft, the inner side of the rotating shaft is rotatably connected to a slope, one side of the slope is installed with a control mechanism, the bottom of the control mechanism is installed with a lifting mechanism, the bottom of the lifting mechanism is installed with a moving mechanism, and the control mechanism is used to position the impact object. The present invention, when conducting multiple groups of tests, adopts a control variable method to adjust the amount of fuel inside the fuel tank, which can not only accurately calculate the force borne by the fuel tank shell based on the kinetic energy and fuel amount at the time of impact, but also effectively evaluate the fuel leakage caused by the plastic fuel tank being broken after the impact, and in addition, fuel tanks of different sizes are taken into account to ensure the wide applicability and accuracy of the test results.

The invention relates to the field of blade testing, in particular to an electric variable pitch propeller blade angle real-time measuring device and method, the measuring device comprises a blade, the blade is assembled and connected to a blade root, and a sliding pin is eccentrically arranged on the end face of the blade root; the measuring assembly comprises an incomplete gear, a transmission gear and an angle sensor, the incomplete gear is fixedly arranged on the paddle root in a sleeving mode, the transmission gear is meshed with the incomplete gear, a gear shaft is fixedly arranged in the transmission gear, and the angle sensor is fixedly arranged on the mounting plate and used for measuring the angle change of the gear shaft. According to the invention, the real-time monitoring process of the blade angle changing process can be realized, the transmission process is reliable and stable, the blade angle measurement is accurate, the practicability is high, and meanwhile, the distance adjusting range of the movable block can be accurately calibrated, so that the measurement precision can be improved.