64results about How to "Cutting costs" patented technology

This invention relates to the field of electrical equipment monitoring technology, specifically a cloud-based smart meter real-time electricity consumption monitoring system. The system includes: using smart meters to monitor enterprise electrical equipment in real time within a target monitoring area, collecting real-time electricity consumption data of the equipment; sensors within the smart meters monitoring the meters; analyzing the situation when the collected electricity consumption data exceeds a threshold value to determine if it constitutes an abnormality; obtaining the smart meter's health value, analyzing its health status, and issuing alerts to staff based on the analysis results; calculating the probability of an abnormal electricity consumption based on staff reports of equipment and smart meter maintenance; and establishing an electrical equipment electricity consumption database based on the real-time electricity consumption data collected by the smart meters for managing the enterprise's electrical equipment.

The application relates to the field of phased array antennas, and discloses a subarray-level anti-interference implementation method based on a planar phased array, which can quickly and accurately perform null processing on multiple interference signals at the subarray level when the planar phased array performs digital beam forming, thereby effectively receiving the expected signals while suppressing the interference. The implementation scheme is as follows: the planar phased array is arranged, and the center position coordinates of each subarray and the array element position coordinates are stored; the target information features are extracted by using a fast capture technology to determine the spatial target positions of the expected signals and the interference signals; a subarray-level constraint matrix C and a constraint vector f required for anti-interference are constructed; the optimal weight values are solved in the unit of the subarray; and a directional diagram is scanned. The anti-interference implementation method based on the planar phased array can be implemented at the subarray level, does not need to know the expected signals and calculate the covariance matrix of the received signals, saves the calculation resources, and can conveniently and quickly perform null processing on the positions of all the interference signals in the directional diagram.

The invention belongs to the field of wireless communication, and particularly relates to a wireless signal multi-dimensional array coding method and system based on dynamic rank optimization. The method comprises the following steps: detecting state information of a wireless channel, predicting state change of the channel by using a pre-trained deep learning model, and generating a dynamic optimization multiplier; adjusting a preset static optimization multiplier by using the dynamic optimization multiplier, constructing a target function for jointly optimizing the energy efficiency and the spectrum efficiency, and determining an optimal transmission rank by solving the target function; comparing the optimal transmission rank with the current transmission rank to determine a rank-up or rank-down operation; and reconstructing a transmission signal of the wireless channel according to a result of the rank increasing or decreasing operation. According to the method, the optimization target is dynamically adjusted by predicting the channel change, and the asymmetric ascending and descending rank algorithm is adopted, so that the adaptive transmission rank optimization in a complex time-varying channel environment is realized, and the communication performance is remarkably improved.

This invention relates to the field of multi-target search using swarm robots, proposing a multi-source localization method based on virtual targets and a virtual population using particle swarm optimization (PSO) algorithm. This method utilizes a swarm of robots with certain communication and sensing capabilities to achieve multi-source target search and localization. The method equally divides the search area into multiple units, each with a virtual target at its center. Only one group of robots traverses all virtual targets and uses the PSO algorithm to search the corresponding regions of each virtual target, ultimately covering the entire search space. Common grouping methods in this field suffer from the difficulty in determining the number of groups, and their performance decreases as the number of source targets increases. The method proposed in this invention requires only one group to complete multi-source target localization, thus greatly reducing the number of robots needed and reducing physical costs. Furthermore, this method can be adapted to large-area passive scenarios.

The application belongs to the technical field of switching power supply, and an auxiliary circuit is added between two branches of a traditional two-phase Dickson converter; in a dead time when all main power tubes are closed, the auxiliary circuit can transfer the charge of one branch to another branch, realizes zero-voltage turn-on of all main power tubes, and reduces switching loss.

The invention relates to the technical field of automobile suspension systems, in particular to a high-buckling control arm based on a double-layer metal plate buckling welding closed section structure, the whole high-buckling control arm is streamline, the high-buckling control arm comprises a control arm upper plate and a control arm lower plate, a closed section is formed through welding, and a welding path avoids a high-stress area and a tire envelope; reinforcing ribs for improving the buckling performance are arranged on the control arm upper plate; the control arm lower plate is provided with a protruding section and a local flange which are used for improving the buckling performance. The structural design of the control arm is optimized, so that the buckling performance and the strength of the control arm meet the requirements on the premise that the control arm is matched with peripheral envelope and the dead weight of a product is not increased, the cost is reduced, the performance and the reliability of the product are improved, and a design thought is provided for the control arm.

The utility model discloses a flexible welding positioner which comprises a driving rotating side and a driven supporting side. The driving rotating side comprises a gear motor, a rotating shaft, a fixing flange, a starting button and a fixing support. The gear motor is fixedly installed on the fixing support, and the rotating shaft is in transmission connection with the output end of the gear motor and used for driving a workpiece to rotate around the rotating shaft. The fixed flange sleeves the rotating shaft and is used for assisting in positioning the driving end of the workpiece; the start button is electrically connected with the speed reduction motor and used for controlling start-stop or rotating speed adjustment of the speed reduction motor. The driven supporting side comprises a ground track, a limiting block, a roller, a bracket, a hand bolt, an adjusting screw rod and a flexible chain; the roller is mounted at the bottom of the bracket and is matched with a guide rail of the ground track, so that the bracket linearly slides along the ground track; the limiting blocks are fixedly installed at the two ends of the ground track and used for limiting the sliding range of the rollers. The clamp cost is reduced through equipment generalization, the efficiency is improved through automation, rework is reduced through structural design, and cost reduction, efficiency improvement and quality improvement cooperation are achieved.

The utility model relates to the technical field of power supply control, in particular to a pump power supply control circuit for high-side driving. The circuit comprises a pump power supply controller which is used for generating a driving control signal and adjusting the driving control signal according to an error signal; the driving module is used for receiving a driving control signal; the power conversion unit is configured to boost a direct current input voltage into a pump voltage under the control of the driving module according to the driving control signal; the feedback sampling circuit is used for sampling the pump voltage and generating an error signal; the isolation feedback device is used for transmitting the error signal to the pump power supply controller in a potential isolation mode; the pump power supply controller takes the cathode of the DC input power supply as the reference ground, and the pump voltage takes the anode of the DC input power supply as the reference standard. The scheme is suitable for high-side driving application, is a pump power supply control scheme which is novel in structure, stable in performance, flexible in control and controllable in cost, and has good popularization and application prospects.

The application discloses a lightweight extensible integrated single-machine debugging system and method, wherein all debugging information is converted into serial data and output to a ground interface through a debugging module and a combining module, and meanwhile, serial data input by the ground interface is output to each monitored module through the combining module and the debugging module. The ground part outputs to each developer through a ground debugging device, and meanwhile, debugging input information is output to a ground interface of a product on a satellite. The application realizes simultaneous debugging of different monitoring objects through cooperative processing between multiple ports and multiple modules.

The application provides an array antenna mixed far and near field beam training method and device, comprising: dividing a phased array array into a plurality of sub-arrays composed of adjacent array elements; sending a first training signal based on a same far field angle codebook to a user equipment through each sub-array; obtaining optimal angle indexes corresponding to each sub-array fed back by the user equipment; when it is determined that the user equipment is in a far field based on an angle consistency measurement between the optimal angle indexes, determining a downlink beam according to the optimal angle indexes; or when it is determined that the user equipment is in a near field based on the angle consistency measurement between the optimal angle indexes, generating an initial distance estimation according to the optimal angle indexes, performing near field beam training to obtain a near field focusing beam, and reducing implementation complexity and beam training overhead in a mixed field scene.

The invention discloses a real-time auditing method for privacy protection of data cross-border flow. The method comprises the following steps: initializing an auditing mechanism, and generating public and private key pairs of domestic enterprises and overseas enterprises; calculating an exit data encryption key and an entry data encryption key; the domestic enterprise encrypts the outbound data through the outbound data encryption key to generate an outbound data ciphertext, and the review institution performs secret state review on the outbound data ciphertext; the overseas enterprise cooperates with the review institution to decrypt the review result, and obtains a partial decryption result of the review institution on the outbound data ciphertext when the review result is passed, and the partial decryption result and partial decryption of the overseas enterprise on the outbound data ciphertext are aggregated to obtain outbound data; the overseas enterprise encrypts the entry data through the entry data encryption key to generate an entry data ciphertext, and the review institution performs secret state review on the entry ciphertext; and the domestic enterprise cooperates with the review institution to decrypt the review result, and obtains a partial decryption result of the review institution on the entry data ciphertext when the review result is passed, and the partial decryption result and partial decryption of the domestic enterprise on the entry data ciphertext are aggregated to obtain entry data.

The utility model discloses a kind of perforating device of bundled straw biomass fuel, including frame, and frame is provided with perforating device, and perforating device includes linear power mechanism, mounting seat and punch assembly, the end surface of mounting seat is connected with linear power mechanism, and the other end surface is provided with punch assembly;The bottom of frame is provided with the positioning assembly for positioning straw bundle, and linear power mechanism drives punch assembly to carry out punching operation to the straw bundle after positioning. Linear power mechanism includes any one in hydraulic cylinder, cylinder, electric cylinder, and hydraulic cylinder is connected with hydraulic pump group and control valve group, cylinder is equipped with gas source equipment and solenoid valve, electric cylinder is electrically connected with servo driver and controller. The utility model punches in straw bundle, obtains straw bundle with air hole, increases airflow flow in straw bundle, effectively improves the combustion efficiency of whole straw bundle, can effectively reduce the volume and structure of combustion furnace, reduces combustion furnace investment cost.

The invention relates to the technical field of artificial intelligence security and cloud computing resource management, and discloses an AI reasoning service elastic scaling method and system for an edge cluster, and the method comprises the steps: constructing a dynamic risk file for each hardware computing unit in a computing cluster; distributing the reasoning service request to a target hardware calculation unit of which the risk state is matched with the security demand level; instantiating an independent logic calculation container for each allocated reasoning service request, and destroying the logic calculation container after the reasoning task is executed; and monitoring the resource configuration change of the computing cluster, and updating the risk state of the computing cluster in the dynamic risk file. According to the method, a mixed protection mechanism with logic isolation as a main part and physical reset as an auxiliary part is adopted, and hardware-level state pollution attacks triggered by antagonistic input are effectively defended in a dynamic elastic edge AI reasoning scene on the premise that the elastic scalability is not obviously sacrificed.

The invention provides a method for optimizing a hinge point of a fly jib oil cylinder and a fly jib and a related device, and relates to the technical field of high-altitude operation equipment. The method comprises the following steps: acquiring a target function constructed based on the stress of a fly boom oil cylinder in the aerial work platform, preset optimization parameters and a fly boom angle; the preset optimization parameters comprise position parameters of a hinge point of the fly boom oil cylinder and the fly boom; the preset optimization parameter corresponds to a plurality of groups of candidate parameter values; according to the multiple sets of candidate parameter values and the fly boom angle range corresponding to the fly boom angle, the target function is solved, the target candidate parameter value enabling the maximum stress of the fly boom oil cylinder to be minimized is determined, and then the optimal hinge point position of the fly boom oil cylinder and the fly boom is obtained. Due to the fact that the objective function takes minimization of the maximum stress of the fly jib oil cylinder in the fly jib angle changing process as an optimization objective and is solved based on the candidate parameter values, the maximum stress of the fly jib oil cylinder can be reduced by optimizing the position parameters of the hinge points, and therefore the effects of reducing cost and reducing weight are achieved.

The utility model discloses a closed flowerpot capable of collecting gas, and belongs to the technical field of gas collection. The closed flowerpot capable of collecting the gas comprises a first pot body used for planting a plant needing to be monitored, the first pot body is made of a plastic material, the first pot body is sleeved with a second pot body, a top cover is arranged on the top of the second pot body in a buckled mode, a penetrating through hole is formed in the middle of the top cover, and a pair of gas guide pipes are arranged on the top cover; the pair of air guide pipes are vertically arranged on the pair of semicircular discs in a penetrating mode respectively, one end of each air guide pipe is located in the second pot body, one air guide pipe is an air inlet, the other air guide pipe is an air outlet, the air inlets are used for conveying treated air, and air released by soil and plants is collected through the air outlets. After the experiment is completed, the second pot body is opened, the first pot body is cut open, all plant roots can be completely taken out, indexes such as root exudates which can only be measured by living plants can be completed, the accuracy of data is ensured, meanwhile, the second pot body can be recycled, and the cost is reduced.

The application provides a train interval control method, device and equipment and a storage medium, relates to the technical field of rail transit, and comprises the following steps: obtaining driving information of a target train; calculating safety envelope position information of the target train based on the driving information, wherein the safety envelope position information comprises a safety envelope head position and a safety envelope tail position; generating first target short message information based on the safety envelope position information; sending the first target short message information to a control train corresponding to the control train based on a control train label; and performing driving control based on the safety envelope position information after the control train receives the first target short message information. The application realizes train interval control by adopting a Beidou short message communication mode, can ensure communication between all trains and a control center on a railway with a simplified along-line wireless communication coverage range, can reduce the cost of laying a wireless communication network, and can ensure safe operation of the trains.

This application provides a wind turbine blade bonding angle mold fabrication structure, relating to the field of wind turbine blade manufacturing technology. It includes: a mold body, comprising a faceted surface and a first flange; a support body, disposed along the leading and trailing edges of the mold body, serving as a support base for the bonding angle mold fabric layer; the support body is a rigid structure; the support body includes an adhesive portion and a second flange, the adhesive portion being fitted to the faceted surface, and the second flange portion being fitted to the first flange portion. The wind turbine blade bonding angle mold fabrication structure of this application directly replaces the easily deformable simulated structural layer with a rigid support body. On the one hand, this prevents slippage during layering, resulting in sharp edges and a complete fit between the adhesive portion and the faceted surface, leading to better quality of the poured bonding angle mold. On the other hand, it significantly improves layering efficiency. Furthermore, by replacing the simulated structural layer with a support body, the bonding angle mold fabric layer can be more easily poured through, significantly reducing resin consumption.

The application provides an atmospheric monitoring point distribution optimization identification method, device and equipment and a storage medium. It relates to the technical field of environmental monitoring. The method comprises the following steps: calculating Voronoi area and neighborhood density as node features based on the latitude and longitude of the site, combining with the AQI correlation to construct a graph structure; training a PollutionGNN model by using a double-layer GAT network with residual connection, establishing a three-objective optimization model of site number, coverage area and prediction error, and realizing the Pareto optimal solution set of monitoring efficiency by using an NSGA-III algorithm. The application solves the problem that the traditional point distribution method is difficult to balance the cost, coverage and precision, provides a theoretical basis for cross-regional application through the influence mechanism of geographical environment and pollution source structure on algorithm performance, finally realizes the upgrading of the monitoring network from experience layout to intelligent optimization, and provides an efficient and reusable solution for different cities.

The invention discloses a phenolic aldehyde board for biomass circuit board drilling and a preparation method and application thereof.The preparation method of the phenolic aldehyde board for biomass circuit board drilling comprises the steps that cashew nut shell oil, phenol and an acid catalyst are mixed, then sodium hydroxide, paraformaldehyde and formaldehyde are added for a reaction, and a cashew nut shell oil modified phenolic aldehyde solution is prepared; diluting and impregnating wood pulp paper to prepare a pre-cured sheet; and finally, carrying out hot pressing to form the phenolic aldehyde plate. According to the biomass phenolic resin, the preparation cost of the phenolic resin can be remarkably reduced, environmental protection benefits are achieved, and the comprehensive performance of the biomass phenolic resin can be kept equivalent to that of pure phenolic resin while the permeability of a glue solution to wood pulp paper and the gluing uniformity are guaranteed.

The application discloses a kind of dynamically configured service logic method, cloud platform, vehicle and storage medium, the method includes: receiving configuration information;According to the configuration information, scene decision tree is dynamically configured, configuration message is generated, and is issued to vehicle;Wherein, the scene decision tree is obtained by the service logic of the preset event library by sceneization.This application is dynamically configured to the scene decision tree set on cloud platform, configuration message is obtained, and is issued to vehicle to upgrade software system in vehicle, can quickly respond to demand change, without software developer to do repetitive tedious development work, so that non-technical personnel can also participate in editing maintenance system business rules, simultaneously without OTA upgrade iteration, can reduce the cost and risk of software system upgrade.

The invention discloses a soil water and fertilizer retention mulching film product using agricultural waste straws as raw materials and a preparation method thereof, the product has raw material sources easier to obtain and a greener technical process than traditional plastic mulching films, a solvent system is composed of eutectic reagents, and the product has the characteristics of being recyclable and environment-friendly. The straw-based mulching film can be naturally formed after being sprayed to the surface layer of soil, and has the effects of inhibiting evaporation of soil moisture and emission of greenhouse gases and enhancing soil fertility.

The application discloses a DMA accessing method and device supporting online data reorganization, and relates to the technical field of data processing, which comprises the following steps: when a DMA engine receives a DMA transmission instruction, it is judged whether there is a data reorganization instruction in the DMA transmission instruction; if yes, the data transmission direction and data reorganization parameter information are obtained; the DMA engine analyzes and splits the received DMA instruction into an access request and sends the access request to an upstream storage in the transmission direction; when the DMA engine receives access response data sent by the upstream storage, the response data is reorganized and stored in a data buffer in the DMA engine; when the data buffer collects all data in the current DMA transmission instruction, the data is forwarded to a downstream storage in a reorganized format according to the data reorganization parameters in the DMA transmission instruction. The application supports online data reorganization, makes the data reorganization process transparent to the operation core, provides convenience and flexibility for programmers, and reduces the implementation cost and power consumption of data format conversion.

The application belongs to the technical field of integrated circuit hardware security, and discloses a dynamic key encryption device and method based on a key check code, which comprises a dynamic key generation module, a trigger signal generation module and a dynamic key check module, an initial key signal is input into the dynamic key generation module, the dynamic key generation module outputs a dynamic key signal to the dynamic key check module, the dynamic key check module acquires an original circuit signal from an original circuit and outputs an encrypted circuit signal to the original circuit, the trigger signal generation module acquires an original circuit state machine signal from the original circuit and outputs a trigger signal to the dynamic key generation module and the dynamic key check module; the application constrains and expands the bit width of an original key by using a check bit, avoids the situation that a solver directly solves one code in a cyclic code and causes the key to be directly cracked, increases the solving space of the solver, and delays the cracking speed of reverse engineering.

This utility model discloses a thermal management system and a vehicle. The thermal management system includes: a condenser on a first flow path, a heat exchanger on a first refrigerant branch, and the first flow path being connected to one of a second flow path, a first refrigerant branch, and a third refrigerant branch; an engine radiator and a heater core on a first circuit, and a heat exchange device on a second circuit; a first heat exchange channel connected in series on the second flow path, and a second heat exchange channel connected in series on the first circuit, with at least one of the first and second heat exchange channels exchanging heat with the engine's exhaust pipe; and a second heat exchange assembly, which includes a third heat exchange channel and a fourth heat exchange channel, the third heat exchange channel being connected in series on the refrigerant circuit, and the fourth heat exchange channel being connected in series on the second circuit. According to this utility model's thermal management system, while meeting the heating needs of the passenger compartment, it can reduce engine warm-up time during cold starts, reduce cold start fuel consumption, effectively save energy and reduce costs, and achieve integrated design.

The application discloses a kind of based on thing networking's wisdom building energy consumption management and equipment monitoring system, belong to building intelligent management technical field.System uses layered distributed architecture, is composed of perception layer, network transmission layer, edge computing layer, platform application layer, terminal control layer;Perception layer realizes energy consumption, equipment, environmental global data acquisition, network transmission layer uses wired wireless dual-mode communication to guarantee data transmission, edge computing layer realizes local instant processing and emergency control, platform application layer realizes cloud big data analysis, visual management, intelligent strategy generation, terminal control layer realizes equipment automation regulation and control.The application overcomes the defects of traditional building management energy consumption waste, operation inefficiency, data isolation, insufficient intelligence, can realize building energy consumption accurate measurement, dynamic analysis, intelligent regulation and control, equipment full period monitoring, fault early warning, automation operation, effectively reduce building energy consumption, reduce operation cost, improve operation safety, applicable to various office buildings, shopping malls, communities, parks and other buildings, with excellent novelty, creativity and practicality, meet the development needs of green low-carbon building.

The invention discloses a low-orbit satellite orbit maintenance method and system under GNSS denial, and the method comprises the following steps: S1, enabling a satellite to enter a nominal orbit, collecting the atmospheric density data of the satellite in real time through an atmospheric density sensor, and calculating the windward side flight resistance of the satellite and the side flight resistance of the satellite according to aerodynamics; s2, reasonably selecting the thruster ignition time of the satellite according to the service working period of the satellite; s3, the resistance impulse is calculated according to the flight resistance of the satellite, and the working duration and the working thrust required by the thruster are calculated according to the resistance impulse of the satellite; and S4, realizing stable flight of the satellite in a low orbit through closed-loop feedback control of the satellite. The problem that the satellite autonomously completes orbit attenuation compensation without depending on an external navigation means is achieved, and the survivability of the satellite in a low orbit is enhanced.

The invention discloses a network link performance detection system and method based on signal monitoring, and the system comprises a logic performance monitoring module which is used for carrying out the inspection of a logic performance index, and transmitting a transient capture trigger signal when a transient abnormal preset condition is satisfied; the physical electric signal sampling module is used for collecting original physical electric signals in real time; the cross-layer real-time triggering and capturing module is provided with an annular cache region for continuously caching the original physical electric signal and solidifying cache data to generate a transient electric signal snapshot after receiving a transient capturing triggering signal; and the associated diagnosis engine is used for performing weight-level physical electric signal characteristic analysis on the transient electric signal snapshot and outputting a diagnosis result in combination with the logic performance index. According to the method, backtracking capture of the original physical electric signals is triggered in real time through the logic indexes, accurate evidence obtaining of transient physical faults is achieved, logic congestion can be effectively distinguished, and the diagnosis accuracy and the utilization efficiency of measurement resources are greatly improved.

The embodiment of the invention discloses a path planning method and device based on a path optimization technology, and the method comprises the steps: carrying out the initialization setting of a path planning parameter, generating an initial parameter, and carrying out the extension of a path from a preset starting point according to the initial parameter. Based on a collision detection algorithm, an extension path is generated by searching a path extending to the end point. According to a repeated point detection method, redundant points in the extension path are detected, the detected redundant points are removed according to a redundant point removal algorithm, and an initial path is generated. And according to a path optimization technology, performing optimization processing on the initial path, generating an output path, and completing path planning. According to the embodiment of the invention, on the premise that the complexity is not obviously increased, a more reasonable and lower-cost path is generated, meanwhile, the calculation speed and stability are improved, the problem of local optimal solution is avoided, and the reproducibility and adaptability in a complex scene are improved.

This invention discloses a multi-stream SSD management method, apparatus, computer device, and storage medium. The method includes: responding to a request from a host to write multiple data streams; allocating the same host write block for the multiple data streams; adding a first timestamp to the allocated host write block; performing write operations on the multiple data streams; and saving the stream numbers at the time of writing the multiple data streams. This invention enables the mixed storage of different data streams on the same write block in a multi-stream scenario, avoiding the overhead of opening multiple write blocks, simplifying data maintenance, and improving data reliability.

The invention discloses a path planning method and device for a mobile robot, a medium and a product, and relates to the technical field of path planning, and the method comprises the steps: obtaining the coordinates of all nodes of a moving area of the mobile robot; determining the starting point as a center node; all feasible nodes in the sudoku with the center node as the center are determined as nodes to be planned; determining a road section where the current to-be-planned node is located; if the road section where the current to-be-planned node is located is the first half section, calculating the total cost by using a first cost calculation formula; otherwise, calculating the total cost by using a second cost calculation formula; and updating the central node to the node to be planned with the minimum total cost, and returning to'determining each feasible node in the Sudoku with the central node as the center as the node to be planned 'until the terminal point exists in the Sudoku with the central node as the center, and sequentially connecting all the central nodes and the terminal point to obtain a planned path. The path planning speed can be improved, and the path cost can be reduced.