16results about How to "Reasonable choice" patented technology

The invention provides a risk assessment method and device. The method comprises the following steps: acquiring risk control thresholds of a plurality of target attribute variables associated with a target service of a financial institution; wherein the risk control threshold value is determined based on the risk control labels of the plurality of sample objects and the attribute values of the target attribute variables of the plurality of sample objects; obtaining first basic attribute data and first risk control attribute data of a target object of a to-be-executed target service; wherein the first risk control attribute data comprises external risk control data and business risk control data; and performing risk assessment on the target object based on the risk control thresholds of the plurality of target attribute variables, the first basic attribute data and the first risk control attribute data, thereby realizing dynamic adjustment of the risk control thresholds according to actual data, improving accuracy of the risk control thresholds, realizing comprehensive assessment of risk conditions of the target object from multiple angles, and improving risk assessment efficiency. Deviation possibly caused by a single data source is avoided, so that the accuracy of risk assessment is improved.

This invention discloses a direct control method for torque and axial force of a linear rotary switched reluctance motor. First, the sector containing the flux linkage vector is determined through calculation. Based on the flux linkage hysteresis signal and the torque hysteresis signal, the voltage vector required for control is determined. Then, the axial force is controlled within the control range of (-15°, 15°) where the rotor position is selected. The corresponding axial force voltage vector is selected based on the axial force hysteresis signal. Finally, the operating mode of each power converter switch is determined based on the signs of all voltage vectors. This invention significantly reduces torque and axial force pulsation by directly controlling the motor's torque and axial force, resulting in a faster system response. Operating modes for the torque winding and axial force winding are established separately for torque and axial force, respectively, leading to more reasonable vector selection. Furthermore, no model calculation is performed during the control process, so the control accuracy does not depend on the analytical model, improving the system response speed and simplifying the control strategy.

The application relates to a special clamp for surface treatment of an inverter copper piece, which comprises a base, a clamping unit, a flexible contact layer, a positioning pin assembly and a support adjusting mechanism. The clamping unit increases the contact area through adjustable clamping arms and the flexible contact layer, the positioning pin assembly reduces the impact force by using a spring buffer device, and the support adjusting mechanism provides uniform support through telescopic support rods. The application can effectively solve the problems of insufficient clamping area, uneven clamping force and insufficient support capacity of the existing clamp, avoid deformation or surface damage of the copper piece, ensure the uniformity of the surface treatment layer, simultaneously adopt a chemical corrosion resistant material, adapt to copper pieces of various shapes and sizes, and improve the applicability and treatment quality.

This utility model relates to a test accelerator pedal locking fixture, comprising a base, a support frame, and an adjustment mechanism. The base supports the entire fixture and is placed on the driver's seat floor. One end of the support frame is fixedly welded to the base, and the other end extends freely upwards with a U-shaped groove at its top. The adjustment mechanism is located in the U-shaped groove of the support frame and includes a screw and a pair of locking nuts. The screw passes perpendicularly through the U-shaped groove to the support frame. The pair of locking nuts, with a diameter larger than the width of the U-shaped groove, are located on opposite sides of the U-shaped groove and are threadedly engaged with the screw to lock it to the support frame. This fixture has the advantages of convenient installation, high control precision, and low cost, and is suitable for laboratory and real-vehicle testing scenarios.

The present application belongs to the field of underwater terrain detection technology, and provides a distributed multi-AUV underwater area detection method based on anti-clustering game, and performs the following steps for any one of the multiple AUVs: underwater terrain detection based on the current position of the AUV and the effective coverage distance range, and self-updates the information map it carries; mutual update of the information map carried by the AUV and other AUVs in its neighborhood; execution of the best dynamic response algorithm based on local game to determine the position of the next target point of the AUV and other AUVs in its neighborhood; determination of the target velocity vector of the AUV at the next moment based on the anti-clustering strategy; update the current moment and return to execute the first step until the detection of the underwater area is completed or the end moment is reached. The method provided by the present application can effectively improve the coverage efficiency of multiple AUVs in distributed exploration of underwater areas.

The invention discloses a visible light communication transmission system and transmission method based on big data calculation, and relates to the technical field of communication transmission, and the system comprises a visible light information collection module, a communication information conversion module, a difference reduction scheme insertion module, an information receiving module, a difference analysis module, a difference reduction scheme optimization module and an analysis module. The method has the advantages that the difference between transmission and receiving of the visible light communication information can be reduced through the difference reduction scheme insertion module, data errors and loss are reduced, the overall communication quality of the current visible light communication information is improved, a suitable difference reduction scheme can be flexibly selected according to the current visible light communication information, and the communication quality is improved. When the transmitted and received current visible light communication information is inconsistent, different information can be extracted in time, the integrity of the information in the transmission process is ensured, the productivity values of different optimization schemes can be calculated, and a user can perform reasonable selection according to own requirements.

The invention provides a power distribution network bearing capacity evaluation method and system based on DG site selection. The method comprises the following steps: selecting typical operation scenes of a power distribution network and a DG; selecting an optimal DG access node of the power distribution network; constructing a power distribution network bearing capacity evaluation mathematical model; calculating the maximum DG capacity which can be accessed by the node according to the optimal DG access node, and planning the DG to access the system; updating a system state, bringing the determined access DGs into the power distribution network, and judging whether the total number of currently planned access DGs reaches a preset power distribution network DG access number upper limit or not; and if the upper limit of the power distribution network DG access number is not reached, reselecting a new optimal access node until the upper limit of the power distribution network DG access number is reached, and outputting a power distribution network DG maximum bearing capacity evaluation result. According to the method, the distributed new energy bearing capacity can be effectively, accurately and comprehensively evaluated.

The utility model discloses a single battery and a battery pack. The single battery comprises a shell, and the shell is provided with an accommodating cavity; the top cover covers the shell in the first direction so as to seal the containing cavity. The battery cell is accommodated in the accommodating cavity; the protective film comprises a side film, the side film covers the peripheral side surface, parallel to the first direction, of the battery cell, and the side film is provided with an inner surface facing the battery cell; wherein the side film is provided with a guide channel, and the guide channel is configured to be capable of realizing capillarity so as to actively suck the electrolyte into the guide channel; the side film is provided with an inner hole, and the electrolyte in the guide channel flows to the battery cell through the inner hole. In addition, the utility model also discloses a battery pack which comprises the single battery. According to the scheme, the guide channel capable of generating the capillary phenomenon is arranged on the protective film, so that the gathered electrolyte can actively diffuse along the guide channel, the flowing amplitude and the flowing range of electrolyte infiltration are improved, and the electrolyte infiltration efficiency is greatly improved.

The present invention relates to the technical field of power supply for highway monitoring equipment, and in particular to a parameter design method and calculator for a solar power supply system for slope monitoring equipment. By combining and considering more influencing factors in practice, the power required by a solar photovoltaic panel in real-time operation, the capacity required by a battery in real-time operation, the power required by a solar photovoltaic panel in a dormant operation, the capacity required by a battery in a dormant operation, and the rated current of a solar system controller are determined respectively. This method can effectively optimize a parameter calculation scheme for a solar power supply system for highway slope monitoring equipment, and enable designers to more reasonably select solar panel power, battery capacity, and controller parameters in the solar power supply system for highway slope monitoring equipment.

The application discloses a method and device for browser cache data, and relates to the technical field of data processing. The method comprises the following steps: acquiring a plurality of characteristic parameter values corresponding to to-be-cached data; determining a total score value corresponding to each browser cache technology according to the plurality of characteristic parameter values corresponding to the to-be-cached data; selecting a target browser cache technology corresponding to the to-be-cached data from a plurality of browser cache technologies according to the total score value corresponding to each browser cache technology; and caching the to-be-cached data into a cache space corresponding to the target browser cache technology based on the target browser cache technology.

The invention discloses a TBM tunneling parameter noise reduction filter design method based on Fourier transform, and the method comprises the steps: analyzing the frequency domain distribution characteristics of a cutterhead torque idling stage and a complete tunneling stage based on a fast Fourier transform method; a noise reduction transition section parameter selection method which takes an idle frequency as a noise reduction cut-off frequency and retains main information of a tunneling section frequency domain is provided; thirdly, in order to eliminate tunneling parameter high-frequency vibration noise, different low-pass filter parameter design and comparison and selection methods are provided; and finally, on the basis of the optimal filter, performing engineering application on noise reduction of field monitoring data and extraction of rock mass dig-ability indexes in the tunnel construction process. According to the method, a frequency domain guidance basis is provided for TBM tunneling data noise reduction target parameter selection, a standardized filter parameter design and comparison and selection process is established, meanwhile, it is guaranteed that vibration noise elimination of tunneling data is achieved through an optimal filter, and TBM monitoring data processing standardization and field monitoring data quality are improved.

The invention discloses a method and a system for generating a sending and measuring relation of an environment monitoring sample based on dynamic programming. The method for generating the sending and measuring relation of the environment monitoring sample based on the dynamic programming comprises the following steps: acquiring initialization information; determining an initial test sending relation according to the initialization information; optimizing the initial sending and testing relation, and determining a final sending and testing relation; and archiving the initial test sending relation and the final test sending relation. According to the method and the device, the sending and measuring relation of the environment monitoring sample can be dynamically planned, the initial sending and measuring relation and the final sending and measuring relation are determined, multiple selectable sending and measuring relations are provided, and the sending and measuring relations can be autonomously or automatically selected, so that the sending and measuring relations are determined more reasonably, and the accuracy of sending and measuring is improved. And the cost can be saved through the automatically selected sending and detecting relationship, so that the detection efficiency of the environment detection sample is improved.

The novel exhaust tail pipe comprises an exhaust tail pipe body, a heat preservation shell and a heat preservation layer, the heat preservation layer is fixedly wrapped outside one end, communicated with an engine, of the exhaust tail pipe body, and the heat preservation shell is fixedly arranged outside the heat preservation layer in a sleeved mode. The utility model has the beneficial effects of simple structure, reasonable design, simple manufacturing process and easiness in assembly; due to the double-layer heat preservation structure of the heat preservation shell and the heat preservation material, the overall attractiveness is improved, and the heat insulation performance of the tail pipe is greatly improved; in addition, the heat preservation shell and the exhaust tail pipe are formed in a welded mode, difference caused by manual operation is avoided, and deposition of combustibles is avoided.

A method of machining a pressure hole of a brazed part with a non-visible sandwich cooling structure includes the following steps. A cooling groove and a pressure-measuring boss are machined on the inner wall. The center of the boss is determined to scribe a line. The scribed line is led to an inner surface of the inner wall. The inner wall and the outer wall are electroplated and assembled through brazing. The scribed line on the inner surface of the brazed assembly is led to the outer wall. A hole is drilled, and then expanded after X-ray inspection. The expanded hole is subjected to X-ray inspection. After the expanded hole satisfies the machining requirements, the measuring nozzle hole is machined. The method realizes the precise machining of a measuring nozzle hole with an offset not greater than 0.5 mm.