18results about How to "Realize computing" patented technology

The invention belongs to the technical field of oil and gas exploration and development, and relates to an accident early warning method and system for an FPSO mooring system under an extreme weather condition, and the method comprises the steps: building an accident scene library according to extreme weather data; grading accidents in the accident scene library according to expert opinions; fusing the expert opinions through a fuzzy mathematical method to obtain the weight of each expert opinion; combining expert opinions with the weights to obtain an accident prediction result of the key nodes of the FPSO mooring system; and inputting the time-varying extreme weather condition data and the key node accident prediction result into a dynamic Bayesian network model to obtain an accident early warning result of the FPSO mooring system. Accident occurrence probability calculation and accident early warning of the whole mooring system, subsystems and equipment units under the extreme weather condition are achieved, and data support is provided for field emergency protection.

The invention discloses a workpiece attitude error compensation method and system based on a space angle and a TCSTRANS. According to the method, automatic sensing, seamless compensation and efficient machining of workpiece attitudes are achieved through the synergistic effect of three core technologies including automatic fitting of a space angle aligned by a laser plane, workpiece coordinate system correction of kernel translation and TCSTRANS characteristic coordinate system transformation supporting five-axis RTCP programming. An original machining program does not need to be modified, the operation complexity and the technical threshold are reduced, the machining precision, efficiency and process reliability are greatly improved, the method is particularly suitable for machining of a five-axis numerical control machine tool on precise workpieces, and the problems that in the prior art, manual experience is relied on, program management is disordered, and post-processing is complex are solved.

The application discloses a near-field equivalent method, a mask 3D near-field correction method and a storage medium. The optical near-field equivalent method comprises the following steps: setting a three-axis coordinate system, so that the initial propagation direction of a light source with a preset angle is propagated along a first axis, and an initial wave vector and a polarization direction are obtained; performing a rotation operation on the initial wave vector and the polarization direction according to the preset angle of the light source; analyzing the polarization direction and the polarization vector of the light source after the rotation operation; rotating the polygon and the light source according to the preset angle of the polygon, so that a new wave vector and a corresponding rotation angle are obtained; analyzing the polarization direction, the polarization vector and the component of the light source after the second rotation operation; generating an edge near-field under equivalent conditions by using a 2D strict electromagnetism algorithm; and performing linear superposition according to the respective components based on the polarization direction of the light source after the second rotation operation, so that an equivalent near-field result is obtained. The application reduces the calculation burden of near-field generation.

This application discloses a method and apparatus for calculating the ohmic resistance of a planar solid oxide fuel cell stack, relating to the field of fuel cell and electrolysis device technology. The method includes: obtaining the geometric structural parameters, material conductivity parameters, and current collector structure parameters of a single cell in the planar solid oxide fuel cell stack; based on the current collector structure parameters, performing an equivalent reconstruction of the current conduction path in the electrodes to establish an equivalent current conduction model including the influence of the current collector path; based on the equivalent current conduction model, calculating the equivalent ohmic resistance of the single cell under operating conditions according to the geometric structural parameters and the material conductivity parameters; and using the equivalent ohmic resistance of the single cell as the ohmic resistance of the planar solid oxide fuel cell stack. This application can accurately calculate the ohmic resistance, improving the accuracy of stack structure optimization and performance analysis.

The application provides a kind of active carbon bulk density testing device and method, including vibration table assembly, fixed support assembly, limiting support assembly, feed hopper assembly and material receiving capacity bottle, wherein, vibration table assembly includes vibration table body and vibrator, fixed support assembly includes support vertical pole and support cross bar, limiting support assembly includes multiple first limiting rods, multiple second limiting rods and third limiting rod, at least one limiting socket for clamping the mouth end of material receiving capacity bottle is formed between second limiting rod and third limiting rod, feed hopper assembly includes feed hopper, the outlet end of feed hopper is set in opposite to the mouth end of material receiving capacity bottle from top to bottom through the receiving sleeve ring. The bulk density obtained by setting vibrator on vibration table body is closer to the actual engineering use operation value than the bulk density obtained by free falling, at the same time, using material receiving capacity bottle does not need manual reading, reduces human error, thereby improving the accuracy of final measurement result.

The application discloses a single-key data parallel method, system, medium and equipment for GPU, and the single-key data parallel signature of the XMSS algorithm is realized through the reuse of the XMSS tree construction process when the XMSS signature is performed, the thread number load balancing of the Winternitz one-time signature and the construction of the XMSS tree, the efficient selection of the authentication path and the root node in the parallel construction of the XMSS tree, and the provision of the parallel execution method of the highly configurable WOTS+ signature.

This invention provides a method for calculating energy storage reserve capacity based on the coordination of wind power and energy storage in the sending-end power grid, relating to the field of power system stability control technology. This invention connects large-scale wind power and energy storage equipment to the renewable energy sending-end power grid and constructs a sending-end system by equivalently representing multiple generators. Then, it constructs a transient power fluctuation curve after adding energy storage. For multiple fault scenarios in the sending-end system, it sets a dynamic safety domain boundary for each fault scenario and determines the hyperplane normal vector. Then, based on the power at the injection point, it determines whether the injection point of the sending-end system is outside the safety domain. When the injection point is outside the safety domain, the energy storage reserve capacity is calculated. Thus, this invention connects large-scale wind power and energy storage equipment to the renewable energy sending-end power grid, realizing the analysis of the transient stability of the sending-end system and thereby calculating the energy storage reserve capacity.

The application provides a heating non-combustion appliance, which has an airflow channel and a heating cavity. The heating cavity is used for containing and heating atomization medium. The airflow channel is used for introducing external airflow into the atomization medium. A temperature sensor is arranged in the airflow channel. The temperature sensor is connected with a heating structure used for heating the temperature sensor. The temperature sensor and the heating structure are both in communication connection with a control panel. The heating structure heats the temperature sensor while the heating cavity starts to heat the atomization medium. The application sets the temperature sensor in the airflow channel, and the temperature sensor is connected with the heating structure. Therefore, the temperature sensor can obtain a higher temperature in the initial stage of starting to heat the heating non-combustion appliance. When a user smokes, the temperature sensor can detect a larger temperature difference. The temperature difference is enough to trigger a preset threshold of temperature change to generate puff calculation. The puff calculation can realize the calculation of the number of puffs, thereby improving the recognition rate of the number of temperature changes and improving the detection accuracy of the number of puffs.

This invention relates to the technical field of rope skipping training, specifically to a rope skipping training method and system, comprising the following steps: collecting the jump offset of the rope skipper to obtain a jump offset model, and using the variation model to predict whether the jumper's leg posture is standard; collecting the pixel difference of the jumper's posture offset to obtain an arm posture change offset model, and using the variation model to predict whether the jumper's arm posture is standard; determining whether the leg posture of any jump is qualified; determining whether the arm posture of any jump is qualified; and obtaining a rope skipping success rate model. The rope skipping training method of this invention estimates the first calculation result of rope skipping by collecting the jumper's jump offset, arm posture change offset, and jump frequency, until the calculation result of each rope skipping training session is obtained. The data collection is simple and has strong universality.

The invention discloses a fan coil panel capable of metering energy consumption. The fan coil panel comprises a panel shell, bolts, a junction box, counter bores, internal threaded columns, positioning arc-shaped rods, decorative covers, property lugs, protrusions and grooves. According to the fan coil panel capable of metering the energy consumption, a panel shell is fixedly installed at an opening of a junction box through bolts, the panel shell corresponds to and is matched with the opening of the junction box, counter bores used for penetrating and embedding of the bolts are symmetrically formed in the two sides of the panel shell, internal threaded columns used for threaded connection of the bolts are symmetrically and fixedly connected to the inner side of the junction box, and the inner threaded columns are fixedly connected with the junction box. The panel shell is fixedly connected with the junction box through bolts, and is provided with counter bores and internal threaded columns to ensure stable installation. The positioning arc-shaped rods added on the back face are attached to the inner threaded columns, accurate positioning is achieved, deviation is avoided, the decorative cover is designed to be clamped through the elastic lugs, the protrusions and the grooves, assembly type installation is achieved, the edge is shielded, and the attractiveness and the protection performance are improved. According to the structure, the installation process is simplified, and the maintenance cost is reduced.

The invention relates to a communication-based motorized micro-grid master-slave-free parallel control method, and belongs to the technical field of power electronic equipment control. A plurality of motorized micro-grids are connected in parallel to form a network, the motorized micro-grids are interconnected through a communication bus, and periodically sample and report voltage feedback values to other motorized micro-grids in a power supply network; calculating a mean value based on all reported voltage feedback, calculating voltage deviation based on a voltage feedback set value, generating adjustment power through a voltage inner ring and a current inner ring, outputting the adjustment power to a load, and when the load changes or the voltage set value of the maneuvering micro-grid changes, adjusting the adjustment power to load balance under the condition of ensuring stable power supply. The problem that power supply quality and power supply network reliability cannot be considered in the prior art is solved.

This invention discloses a performance optimization method for a blade-tip jet hybrid propulsion system based on thermodynamic cycle planning, belonging to the field of aerospace hybrid propulsion technology. The method decomposes the design goals of high power-to-weight ratio and low fuel consumption of an aircraft propulsion system into optimization goals for the system's thermodynamic cycle parameters; identifies key parameters affecting cycle power and thermal efficiency, including compressor pressure ratio, turbine pressure ratio, rotor centrifugal pressure ratio, and blade-tip jet Mach number; collaboratively designs these strongly coupled key parameters and calculates system performance based on component models and energy conservation relationships; compares the calculated system power-to-weight ratio and fuel consumption with the optimization goals, and iteratively optimizes and adjusts component parameters until the optimization goals are met. This invention overcomes the limitations of traditional unidirectional engine design, achieving multi-level utilization and full recovery of system energy, and effectively solves the problem that traditional propulsion systems cannot simultaneously achieve high power-to-weight ratio and low fuel consumption.

The application discloses a kind of natural grassland forage supply substitution efficiency evaluation method based on artificial forage grass and straw, and is applied to grassland ecological management technical field.It includes the following steps: constructing the evaluation index system including multiple measures, collecting multi-source basic data, taking natural grassland standard theoretical supply as benchmark, calculating the actual forage nutrition provided by each measure, obtaining the substitution efficiency index corresponding to the measure;Build a total substitution efficiency index calculation model containing the interaction effect between measures;Calculate the total substitution efficiency index and the theoretical grass-livestock balance degree of each time period;Generate an evaluation report containing the substitution efficiency index of each measure, the total substitution efficiency index, the theoretical grass-livestock balance degree and optimization suggestions.The present application overcomes the one-sidedness of single measure evaluation, considers the interactive synergistic effect of different measures, and can accurately quantify the forage substitution contribution under the synergistic effect of multiple measures, providing scientific and dynamic decision support for regional grass-livestock resource allocation and ecological management.

This application discloses a vehicle axle-mounted odometer detector, relating to the field of automotive odometer detection technology. It includes a Hall element mounted on the vehicle body and magnets mounted on the vehicle axle via a mounting strip and a clamping structure. The clamping structure is slidably sleeved on the mounting strip and includes a limiting deformation seat and strain plates on both sides, with a gap between the limiting deformation seat and the strain plates. A pin passes through the mounting strip and is threaded to the bottom of this gap. The technical advantages of this application are: the magnets are mounted on the vehicle axle via the mounting strip and clamping structure; the Hall element detects the magnets, enabling the calculation of mileage per unit travel; multiple magnets are arranged and their positions are adjustable; the stability of the mounting strip on the vehicle axle is achieved by setting an extended arc for internal interference fit; and the limiting deformation seat and strain plates have different deformation directions, effectively ensuring the stability of the installation between the mounting strip and the magnets.

The utility model discloses a grain counting machine which comprises a machine frame, a roller conveying line provided with at least two conveying rails is arranged on the machine frame, a material vibrating plate is arranged at the feeding end of the roller conveying line, and a counting assembly used for counting conveyed products is arranged on the conveying rails of the roller conveying line. The rack is further provided with a discharging device, an inlet of the discharging device is located at an outlet of the discharging end of the roller conveying line, and the discharging device is used for receiving counted products from the roller conveying line. Products located at the position of the vibration plate can be rapidly conveyed through the two roller conveying lines, the products are counted through the counting assembly in the conveying process, specific calculation of the conveyed products is achieved, a certain number of products are conveyed to the discharging device to be conveyed to the next working procedure, and the production efficiency is improved. Compared with existing manual and single-channel counting, the product conveying and counting device can quickly convey and count products.

The invention discloses a capacitor voltage transformer fault identification method and system, and belongs to the technical field of power equipment monitoring. The method comprises the following steps: firstly, constructing a CVT broadband equivalent model containing distribution parameters and an n-type transformer topology; then extracting a composite characteristic parameter set fusing the broadband resonance characteristic and the power frequency electrical characteristic; establishing a mapping relation among the fault type, the damage depth and the characteristic parameters through simulation; and finally realizing non-intrusive accurate identification of the fault type and the damage depth of the CVT based on the mapping relation. According to the invention, through multi-dimensional feature fusion, the fault classification precision and the early fault detection capability are significantly improved, and the problems of operation risk and low efficiency of a traditional power failure test are avoided at the same time.

This invention discloses a traveling wave protection method, device, system, and medium based on heterogeneous computing, belonging to the field of power system relay protection. The method is based on a heterogeneous computing architecture that coordinates CPU and FPGA, executing high-speed data sampling, phase-mode transformation, start-up discrimination, and integral calculation in parallel via the FPGA; the CPU is responsible for parameter configuration, receiving preprocessing results from the FPGA, and executing the final protection logic judgment. Specifically, the start-up discrimination uses an integer arithmetic formula optimized for FPGA to quickly capture faults; the integral calculation obtains the integral value of the first-mode current within a specific time window; the CPU calculates its correlation with the reference waveform using a discrimination function to distinguish between faults inside and outside the fault zone. This invention significantly improves the computational efficiency and operating speed of traveling wave protection, exhibiting high reliability and strong tolerance to transition resistance.

The application provides an AGV navigation magnetic tape reliability judgment method, device, system and electronic equipment, comprising: in the process of AGV traveling along the navigation magnetic tape according to a preset route, a magnetic tape detection device arranged on the AGV is used to detect the navigation magnetic tape in real time, and the actual duration data of AGV traveling on the navigation magnetic tape is recorded; the recorded actual duration data is compared with the corresponding preset duration threshold corresponding to the preset route, if the recorded actual duration data is greater than or equal to the preset duration threshold, an alarm signal representing that there is a problem with the navigation magnetic tape is output. The accurate calculation and intelligent judgment of the length of the abnormal part of the magnetic tape are realized, the intelligent supervision under different walking speeds of AGV and different emergency situations is realized, when a serious emergency occurs, the AGV is controlled to stop, efficient and high agility are realized to prevent AGV from colliding with materials, deviating and the like, the safety of the scene is ensured, the intelligent degree and safety of the application are greatly improved, and the application scenarios of the application are further expanded.