32results about How to "Improve working condition adaptability" patented technology

The application relates to a rolling temperature control method and system of a heating furnace, and belongs to the technical field of heating furnace control. The method comprises the following steps: acquiring rolling line working condition parameters and actual furnace temperature; inputting the working condition parameters into a pre-trained LSTM neural network prediction model to obtain dynamic remaining rolling time in a future preset time period; defining a temperature response lag coefficient based on the actual furnace temperature, establishing a coupling relationship between the temperature response lag coefficient and the remaining rolling time, and taking the temperature response lag coefficient as a ratio of a time for the actual furnace temperature to reach a preset target temperature to a theoretical temperature reaching time; calculating a reference temperature based on a preset comprehensive radiation model of the furnace, determining a temperature compensation amount according to the coupling relationship between the temperature response lag coefficient and the remaining rolling time, adding the reference temperature and the temperature compensation amount to obtain a target temperature, and adjusting the temperature of the heating furnace to the target temperature. The application has the effect of improving the temperature control precision of the heating furnace.

The application belongs to the field of vehicle-mounted refrigerators, and discloses a dual-temperature cooperative acquisition circuit, an intelligent temperature measurement method and a vehicle-mounted refrigerator, which comprise: a synchronous acquisition unit, which is used for synchronously acquiring temperature signals of at least two target regions of the vehicle-mounted refrigerator and outputting corresponding temperature analog signals; an anti-interference processing unit, which is connected with the output end of the synchronous acquisition unit and is used for filtering various interference signals in the vehicle-mounted environment; an adaptive signal conditioning unit, which is connected with the output end of the anti-interference processing unit and is used for adaptively amplifying, filtering and linearizing the temperature analog signals; a main control unit, which is connected with the output end of the adaptive signal conditioning unit and is used for digitizing the temperature signals, performing algorithm operation and logical control; and a wide-adaptive power supply unit, which is connected with the synchronous acquisition unit, the anti-interference processing unit, the adaptive signal conditioning unit and the main control unit and is used for providing a stable working voltage that is adapted to the vehicle-mounted power supply.

An efficient boiler steam exhaust silencer reliable in structure and durable comprises a silencer body, a supporting plate and a base used for achieving the overall supporting effect, the supporting plate is transversely installed on the base through a plurality of shock absorbers, and the silencer body is transversely and fixedly installed on the top of the supporting plate; the supporting plate comprises a steam inlet cylinder, a silencing cylinder and a steam outlet cylinder which are fixedly communicated in sequence, a steam inlet of the steam inlet cylinder is connected with a steam inlet flange through a steam inlet hose, a steam outlet of the steam outlet cylinder is connected with a steam outlet flange through a steam outlet hose, and the outer side of the silencing cylinder is sleeved with a heat exchange jacket used for cooling steam in the silencing cylinder. A cooling water inlet and outlet pipeline is fixedly connected to the heat exchange jacket, and a plurality of silencing plates are sequentially arranged in the steam outlet cylinder from one side of the silencing cylinder to one side of the steam outlet. By integrating the high-strength structural design and the multi-stage composite silencing technology, the efficient attenuation and low-resistance steam exhaust of steam exhaust noise are realized while long-term stable operation and durability are ensured.

The application relates to an intensive transient disturbance regulation circuit, which comprises a three-phase bridge arm unit, a common DC side unit and a zero sequence bridge arm unit; the three-phase bridge arm unit is connected with each phase power supply branch of a three-phase power grid, a common neutral end of the common DC side unit and an input end of the zero sequence bridge arm unit, and an output end of the zero sequence bridge arm unit is grounded; the zero sequence bridge arm unit is used for generating a first current for offsetting a fault zero sequence component based on a power grid voltage, a power grid current and a common neutral end voltage of the three-phase power grid; the three-phase bridge arm unit is used for determining a three-phase reactive compensation current based on the common neutral end voltage and the first current input by the zero sequence bridge arm unit, and sending the three-phase reactive compensation current to a corresponding phase distribution line of the three-phase power grid; and the common DC side unit is used for providing common DC voltage support for the three-phase bridge arm unit and the zero sequence bridge arm unit. The zero sequence disturbance of the distribution network can be inhibited, and the voltage deviation and power fluctuation problems caused by the power grid transient disturbance can be weakened.

The utility model provides a kind of low-resistance ITO film slitting equipment, including round knife group, and one side of round knife group is provided with mounting rod, at least one group of slitting assembly is provided on the outside wall of mounting rod, for the secondary cutting of uncut film material, slitting assembly includes fixed plate slidingly connected on mounting rod, and one end of fixed plate is rotatably connected with transmission rod, and one end of transmission rod is provided with slitting knife, the cutting edge of each slitting knife is coaxially arranged with the cutting edge of each corresponding round knife, to ensure that the cutting position of uncut film material and slitting knife cutting position are completely coincident, the utility model is equipped with slitting assembly on one side of round knife group, and the cutting edge of slitting knife and corresponding round knife is coaxial, can be aimed at round knife blade wear, tension anomaly leads to uncut film material to carry out accurate secondary cutting, ensure that cutting position coincides, avoid tearing film material when winding due to tension accumulation, solve quality problem, improve yield, reduce cost.

This invention provides an adaptive intelligent blood collection chair and its operating method. The chair includes a seat cushion, leg rests, a backrest, an oxygen mask, and a detection module. The detection module collects the physiological characteristics of blood donors seated on the cushion. Based on the real-time physiological characteristic detection results, the chair's posture is adjusted in a coordinated manner. It can achieve differentiated and graded adaptive posture adjustment for two different abnormal physiological conditions: pre-syncope and shock risk. By matching the corresponding backrest tilt angle and leg rest support height, it optimizes the body's blood circulation and progressively strengthens the emergency protection level. Simultaneously, combined with the oxygen mask's adjustment mode, it achieves graded protection effects: pre-positioning for mild cases and immediate oxygen supply for severe cases. The overall movement is smooth, and the reset logic is stable and orderly, effectively improving the donor's ability to cope with sudden physical discomfort during blood donation and significantly enhancing the safety and adaptability of the intelligent blood collection chair.

This invention belongs to the field of recycled copper smelting technology, and specifically discloses a waste heat recovery and utilization device for recycled copper smelting. The device includes a shell, with an inlet pipe connected to one side and an outlet pipe connected to the other side for introducing high-temperature flue gas to complete heat exchange before discharging the flue gas; a heat exchange finned tube bundle is disposed inside the shell for heat exchange with the high-temperature flue gas. Through the action of a first guide plate, baffle, and diversion pipe, this invention can regulate the flue gas at the inlet, diverting and regulating it when flue gas fluctuations are large, achieving long-term high efficiency and energy saving. Simultaneously, during the instantaneous discharge of high-temperature dense smoke and dust in recycled copper smelting, the diversion pipe reduces the temperature and concentration of the flue gas entering the heat exchanger, preventing equipment damage and blockage, and avoiding excessively low flue gas temperature that could generate acidic condensate, corrode heat exchange elements, and shorten equipment lifespan.

The application discloses a kind of CPP cast film automatic deviation correction flattening winding device, belong to winding technical field, including rack, flattening roller, deviation correction roller and tensioning roller of being installed with axial movement on rack, detection roller is installed on rack, and winding roller is installed on rack, CPP cast film is sequentially through flattening roller, deviation correction roller, tensioning roller and detection roller, flattening roller, deviation correction roller and tensioning roller are arranged in triangle;Flattening roller, deviation correction roller and tensioning roller are all equipped with annular groove, retractable mechanism is fixedly connected on rack, retractable mechanism and the detection component signal connection of detection roller, the end of retractable mechanism is installed with mounting seat, annular air bag is equipped in annular groove, three poking members are installed on mounting seat, poking member extends into annular groove respectively, and extrude annular air bag, the outer surface of annular air bag extends to annular groove outside.The application has the advantages of synchronous deviation correction, anti-skid, prevent material deformation and tear.

The utility model discloses a power device for a swimming pool cleaning robot and the swimming pool cleaning robot, the power device comprises a base body part and a moving part, and a water injection nozzle is formed in the base body part; a plurality of through flow guide openings are formed in the moving part, each flow guide opening has a corresponding flow guide direction, the moving part can move relative to the base body part so that the flow guide openings can be adjusted to correspond to the water spraying openings in position, the medium spraying direction of the water spraying openings can be controlled according to the flow guide directions, and at least two corresponding flow guide directions in the flow guide openings are different. According to the swimming pool cleaning robot, by arranging the moving part, the number of added parts is small, the structure is simple, and light weight of the swimming pool cleaning robot can be achieved. The multiple flow guide openings are formed in the moving part, the driving direction of the power device is enriched, the corresponding flow guide direction can be set according to the actual working condition, and the complexity of the structure of the power device is reduced while the working condition adaptability of the driving device is improved.

The invention relates to the technical field of baked food production equipment, in particular to a full-automatic cake blank rolling machine which comprises a middle demolding supporting frame, a plurality of step-by-step demolding lifting control parts are arranged on the middle demolding supporting frame and installed on middle turnover equipment capable of turning over the step-by-step demolding lifting control parts by 180 degrees, a cake blank demolding platform is arranged on the middle demolding supporting frame, and a cake blank rolling machine is arranged on the cake blank demolding platform. The equipment comprises a plurality of cake blank fixed containing plates and liftable cake blank movable containing plates which are arranged at intervals, and is further provided with a demoulding auxiliary system which is close to a middle demoulding supporting frame and is used for impacting, vibrating and demoulding cake blanks and synchronously controlling the cake blank movable containing plates to ascend and descend; synchronous cooperative control of impact demolding and cake blank receiving can be achieved, demolding requirements of different bonding force working conditions are met, cake blank demolding damage is effectively avoided, the demolding yield and the production automation degree are greatly improved, meanwhile, demolding disintegrating slag can be collected and discharged in a centralized mode, and the standard requirement for large-scale clean production of baked food is met.

This invention relates to the field of building equipment automation and predictive maintenance technology, and particularly to an online control method and device for HVAC duct gas. The method includes: acquiring pressure signals from a closed-loop HVAC duct system; extracting multi-dimensional fluctuation features from the pressure signals to obtain pressure signal characteristics; weighted fusion of the signal features to obtain a comprehensive diagnostic index; based on the pressure signals, performing fault-tolerant judgment on the operating conditions of the HVAC duct; determining the diagnostic threshold of the comprehensive diagnostic index based on the fault-tolerant judgment result; comparing the comprehensive diagnostic index with the diagnostic threshold; and executing corresponding graded exhaust control actions for the HVAC duct based on the comparison result. This invention can solve the problems of high hardware and maintenance costs, difficulty in detecting accumulated trace gases in existing technologies, and the limitations of detection technologies, which are limited to direct detection or single-feature judgment, and cannot effectively identify dynamic pressure fluctuation characteristics, making early and accurate gas diagnosis difficult.

The application is suitable for the technical field of plug valves, and particularly relates to a plug valve sealing specific pressure determination method, device and equipment. The method comprises the following steps: obtaining the operation conditions and running parameters of a plug valve within a period of time; determining the basic sealing characteristics of the plug valve according to the operation conditions and running parameters; obtaining the fusion sealing characteristics of each component of the plug valve and other components according to the basic sealing characteristics and position characteristics of the plug valve; determining the sealing performance trend of the plug valve based on the fusion sealing characteristics; and determining the optimal sealing specific pressure range according to the sealing performance trend. Therefore, the plug valve sealing specific pressure determination method provided by the application can solve the problem of isolated sealing performance evaluation of the plug valve, which leads to inaccurate determination of the sealing specific pressure of the plug valve.

This invention discloses a fixing structure for a high-power frameless motor used in humanoid robots, relating to the field of frameless motor technology. It includes: a stator assembly with positioning blocks fixed to both end faces of the stator assembly, two positioning blocks on each end face; and a rotor assembly housed within the stator assembly. This invention employs a structure with a double-disc body, double rotating rings, and a connecting seat. Relying on the positioning blocks and positioning grooves, and the protrusions and grooves forming a double alignment design, combined with a locking mechanism, it can quickly achieve concentric positioning of the stator assembly and rotor assembly, while effectively limiting radial movement of the rotor assembly. Furthermore, the connecting mechanism adopts an adjustable clamping structure design, which can adapt to output shafts of different sizes, ensuring coaxiality between the output shaft and the stator and rotor assemblies. This eliminates the need to replace the motor body or customize an adapter flange, significantly improving the equipment's versatility and adaptability to different operating conditions.

This invention relates to the field of fuel cell technology and discloses a fuel cell heat dissipation system and control method for active balancing heat dissipation in unmanned aerial vehicles (UAVs). The fuel cell heat dissipation system includes a UAV heat dissipation assembly and an active balancing control subsystem. The UAV heat dissipation assembly includes a liquid cooling circuit and rotors disposed at the tips of multiple heat dissipation arms. The liquid cooling circuit includes coolant channels disposed inside the multiple heat dissipation arms. The coolant channels include in-arm liquid inflow pipes and in-arm liquid return pipes. Multiple in-arm liquid inflow pipes are arranged close to the inner side of the heat dissipation arms, and the multiple inflow pipes converge at the tips of the heat dissipation arms and connect to the in-arm liquid return pipes. The inflow pipes have an S-shaped variable diameter pipe structure, and their arrangement density gradually decreases from the root to the tip of the heat dissipation arm. The active balancing control subsystem includes a sensor group, an actuator group, and a controller. This invention can improve the reliability and flight safety of the UAV thermal management system.

The present application belongs to the technical field of inkjet head maintenance, and discloses an automatic grading cleaning system and method for inkjet head. The system comprises a flow passage impedance detection module, an ink state sensing module, a grading cleaning collaborative control module, a self-adaptive fluid driving module and a water line visual feedback module, and each module forms a closed-loop electrical data interaction link. The present application collects multi-dimensional real-time data of the pressure difference, flow rate, idle deposition duration and environmental temperature of the inkjet head flow passage, generates self-adaptive cleaning pressure parameters relying on the built-in linkage operation logic, drives the cleaning operation and iteratively adjusts the cleaning process in combination with the water line visual feedback, thereby realizing grading automatic cleaning of the inkjet head. The present application solves the technical defects of the prior art that the fixed cleaning parameters cannot adapt to the dynamic state changes of the inkjet head, can match the cleaning requirements of the inkjet head in different clogging states and ink residue states, and improves the adaptability and standardization of the inkjet head cleaning operation.

The application relates to the field of drill bits, and discloses a thin-wall drill bit, which comprises a thin-wall drill body, one end of the thin-wall drill body is fixedly connected with a mounting head, the outer arc surface of the other end of the thin-wall drill body is fixedly connected with a drill bit A, the outer arc surface of the thin-wall drill body is provided with a dust discharging port A, the inner side wall of the thin-wall drill body is detachably provided with a material taking assembly, the material taking assembly comprises an inner bushing, the outer arc surface of the inner bushing is in contact with the inner side wall of the thin-wall drill body, and the outer arc surface of the inner bushing is fixedly connected with four groups of positioning grooves. The drill bit B at the front end of the inner bushing and the body drill bit A form a double-ring synchronous cutting structure, single-ring surface cutting is split into hierarchical cutting, cutting load is dispersed, feeding resistance is reduced, drilling efficiency is improved, and the steel bar working condition adaptability is improved; the special-shaped positioning structure guarantees stable torque transmission, the double-layer structure strengthens the rigidity of the drill cylinder, inhibits vibration and eccentric wear, and prolongs the service life of the drill bit.

The application discloses a hot oil abrasion test equipment for a rolling friction sleeve of an electronic disconnector, which comprises a tool seat, a tool frame and a main shaft shafting, the friction sleeve is detachably connected to the main shaft shafting, an oil bath heating box for placing the friction sleeve is arranged on the tool seat, a driving piece for driving the main shaft shafting to rotate is arranged on the tool frame, a secondary friction assembly for cooperating with the friction sleeve is arranged on the oil bath heating box, a loading structure for providing a controllable loading force to the secondary friction assembly and accurately detecting the micro-abrasion displacement of the secondary friction assembly is arranged on the tool frame, and an eccentric posture adjusting structure for adjusting the relative position and angle of the secondary friction assembly is arranged on the oil bath heating box. The application solves the problem that the prior art lacks a special test equipment for the rolling friction sleeve of the electronic disconnector of a new energy vehicle, so that the high-temperature hot oil lubrication, rotating operation, controllable load and eccentric posture multi-parameter coupling working conditions of the real work cannot be reproduced synchronously.

This invention discloses a deep learning-based method and system for predicting the ignition state of an aero-engine combustor, comprising: collecting a dataset of combustor ignition parameters; analyzing sample distribution to determine augmentation amounts, generating new samples based on KNN interpolation and injecting adaptive Gaussian noise, and referencing the physical correlation between the fuel-air ratio and temperature-pressure ratio of real samples when augmenting under special operating conditions; constructing an AttResVGG deep neural network, using residual connections to prevent gradient vanishing, embedding a multi-head self-attention mechanism to capture long-range dependencies between parameters, and integrating multi-scale features through a global feature fusion module; designing a dual classifier training method, with the main classifier using class-weighted cross-entropy loss and the auxiliary classifier using label smoothing loss, jointly optimizing model parameters; and real-time prediction of input operating condition parameters. This invention breaks through the parameter dependence of traditional empirical models, achieving adaptive prediction under complex operating conditions; reducing computation time to meet real-time decision-making requirements; and adapting to various combustor structures without requiring remodeling.

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment desliming machine which comprises a base, a semi-cylindrical containing groove is formed in the upper portion of the base, a plurality of arc-shaped partition plates are evenly arranged in the semi-cylindrical containing groove in the axial direction of the semi-cylindrical containing groove, and the sewage treatment desliming machine further comprises a water taking mechanism and a posture adjusting mechanism; the water taking mechanism comprises a driving shaft which is coaxial with the semi-cylindrical containing groove and can rotate directionally, the driving shaft is coaxially sleeved with a central flow guide pipe, a water collecting tank is arranged on the outer side of the central flow guide pipe in the circumferential direction, and semi-oval water collectors communicated with the water collecting tank are evenly distributed on the side, away from the central flow guide pipe, of the water collecting tank. A plurality of water inlet holes are formed in the cambered surface of one side of the semi-elliptical water collector. According to the sewage treatment desliming machine provided by the invention, the rotary semi-elliptical water collector with the water inlet holes is arranged in the semi-cylindrical containing groove, so that continuous separation of sewage and sludge is realized, and compared with traditional intermittent extrusion type dewatering equipment, the sewage treatment desliming machine has the advantage that the desliming operation time is remarkably prolonged.

The invention discloses a participation judgment and independent control method of an auxiliary supporting device of a two-wheeled vehicle, and belongs to the technical field of intelligent control of the two-wheeled vehicle. The participation judgment and independent control method comprises the steps that vehicle operation parameters and environment / supporting parameters are collected, and the vehicle operation parameters at least comprise vehicle speed parameters, vehicle posture parameters and steering / braking parameters; the environment / supporting parameters at least comprise road surface gradient information and / or auxiliary supporting device contact information, and high-speed mistaken touch prevention verification, supporting contact abnormity dynamic compensation, multi-dimensional safety redundancy and vehicle multi-system collaborative design are combined; accurate dynamic judgment of the intervention / exit time of the auxiliary support device and independent differential closed-loop adjustment of the auxiliary supports on the left side and the right side are achieved, the posture stability of the vehicle under various working conditions is guaranteed, meanwhile, safety risks caused by false triggering, posture sudden change, device faults and the like are effectively avoided, and the safety of the vehicle is improved. And the adaptability of the control method in different two-wheeled vehicles and complex use scenes is expanded.

This invention relates to the field of tire simulation design and durability performance optimization technology, specifically to a simulation optimization method and system for the crown durability of new energy vehicle tires. The method includes acquiring tire crown structure, material, and vehicle operating condition parameters; establishing a crown finite element model; constructing an equivalent durability operating condition spectrum including driving torque and regenerative braking torque; simulating to obtain the fatigue life field, belt layer lateral shear stress field, and failure location distribution; identifying real weak areas through dual-screening of failure points; and determining the graded optimization rules for the tire shoulder pad rubber, belt overlay rubber, and base rubber based on the durability life improvement rate, shear stress change rate, and failure location migration markers, ultimately outputting a crown durability optimization scheme.

The application discloses an electromechanical brake pre-braking method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle control. The method comprises the following steps: collecting driver behavior signals and vehicle environment signals; inputting the collected signals into an intention prediction model to output a braking intention probability and an expected braking intensity; when the braking intention probability exceeds a preset threshold, performing a corresponding pre-braking action according to the expected braking intensity; and if no actual braking operation is detected within a preset time after the pre-braking trigger, the pre-braking action is cancelled. The technical effect of shortening the braking response time, improving the pre-braking prediction accuracy and the working condition adaptability, and balancing the braking safety and the driving smoothness is achieved.

A lubrication structure for a transfer case gearbox in a large-tonnage truck crane includes a housing and a self-priming oil pump assembly that pumps oil from the bottom of the housing upwards to lubricate the gears and bearings within the housing. The self-priming oil pump assembly comprises a first self-priming oil pump mounted on one shaft within the housing, a second self-priming oil pump mounted on a second shaft within the housing, and a cooler connected to the oil outlet of the second self-priming oil pump via an oil pipe. The oil inlets of the first and second self-priming oil pumps are respectively connected to the bottom of the housing via oil pipes. The oil outlet of the first self-priming oil pump is connected to an oil passage within the housing. The oil outlet of the cooler is connected to the housing via an oil pipe. This invention reduces wear on gears and bearings caused by untimely lubrication, lowers the probability of lubrication failure under extreme operating conditions, improves the adaptability of the lubrication system, extends the fatigue life of gears and bearings within the gearbox, reduces the aging rate of the lubricating oil, and reduces vibration and noise during gearbox operation.

The invention discloses an ROV trajectory tracking optimization control method for a complex environment, and relates to the technical field of underwater robot control, and the method comprises the steps: building a north-east coordinate system as a fixed coordinate system, building an underwater robot body coordinate system as a motion coordinate system, defining six-degree-of-freedom motion parameters, and building a complete dynamic model; according to the actual operation condition and the structural characteristics of the underwater robot, the complete dynamic model is simplified into a four-degree-of-freedom control model, and thrust distribution is carried out according to a direct logic distribution method; designing a double-closed-loop sliding mode surface containing an integral term and an improved index reaching law, and using a hyperbolic tangent function as a switching term to complete the improved design of an outer-loop position controller and an inner-loop speed controller; and designing a multi-objective fitness function, and carrying out iterative optimization on parameters of the sliding mode controller based on an improved crow search algorithm to obtain an optimal parameter combination adaptive to thrust limitation and complex trajectories. According to the invention, the tracking precision of the ROV in a complex environment is effectively improved.

This invention provides an intelligent control method and system for gas flow in a continuous annealing furnace, comprising: collecting and preprocessing key process parameter data during the operation of the continuous annealing furnace; inputting the key process parameter data into a trained gas flow prediction model to predict and output the target gas flow in each zone of the continuous annealing furnace; the gas flow prediction model is constructed by combining a heat transfer physics model and a data-driven AI model; the heat transfer physics model calculates the optimal furnace temperature setpoint based on the target strip temperature, and the data-driven AI model predicts the target gas flow based on the optimal furnace temperature setpoint; the prediction result conforms to physical laws and also learns the complex nonlinear relationship between actual combustion and control through the data-driven model; correcting the target gas flow based on production process parameters; when the difference between the corrected target gas flow and the real-time detected gas flow exceeds a preset threshold, feedback adjustment of the gas flow in each furnace zone is performed based on the actual strip temperature, target temperature, and furnace temperature using a PID control algorithm. This invention enables intelligent control of the gas flow in a continuous annealing furnace.

The utility model discloses a soil sampling device before deep pipeline foundation pit operation, which comprises a moving plate, a bearing seat is fixedly embedded in one side of the moving plate, a support frame is movably embedded in the bearing seat, a sampler is connected to the upper end of the side wall of the support frame, an auxiliary support is mounted on one side of the sampler, and a soil sampling device is mounted on the other side of the auxiliary support. A storage counterweight assembly is installed at the upper end of the movable plate, and four adjusting movers are installed at the four corners of the movable plate. The utility model relates to the technical field of sampling, and the whole structure can be easily moved and positioned through the moving plate and the adjusting movers arranged at four corners; the moving rods are matched with the bolts, the height of the moving wheels can be adjusted, different ground conditions can be adapted, the working condition adaptability is enhanced, and the supporting frame is connected with the moving plate through the bearing seat and can horizontally rotate; the sampler drives the sliding block through the lead screw to realize longitudinal accurate movement of the sampling winch, so that the position of a sampling point and the sampling depth are flexibly adjusted, and the sampling accuracy and the operation convenience are improved.

This invention discloses a hydraulic system for a skid steer loader, its control method, and the skid steer loader itself. In the hydraulic system, the outlet of the travel pump is connected to the inlets of the first and second travel motors. The control oil outlet of the travel pump is connected to the inlets of the left and right hydraulic pilot handles via a first solenoid directional valve. The four control oil circuits (front, rear, left, and right) of the left hydraulic pilot handle are connected to the travel pump and a multi-way valve via a left handle oil circuit switching valve. The two control oil circuits (left and right) of the right hydraulic pilot handle are connected to the multi-way valve, and the two control oil circuits (front and rear) of the right hydraulic pilot handle are connected to the travel pump and the multi-way valve via a right handle oil circuit switching valve. This invention retains the sensitive and convenient operation of the hydraulic pilot control while providing both ISO and H operating modes, allowing users to switch freely according to their needs. This enhances the adaptability of the machine to different working conditions, improves work efficiency, and offers cost advantages.

This invention provides a potential energy recovery system and control method for a crane luffing mechanism. Through modular collaborative control of an energy conversion unit, an energy storage unit, a luffing control unit, and a control unit, the system can recover and store the gravitational potential energy generated by the luffing mechanism during the lowering of the boom. During the lifting of the boom, the recovered energy is released to assist power output, effectively replacing the throttling and overflow energy consumption method of traditional luffing systems, significantly reducing energy waste, while also reducing the heat generation of the hydraulic system and extending the service life of hydraulic components. The control unit can uniformly regulate the working status of each unit based on work instructions and real-time working condition signals, ensuring smooth and controllable luffing movements, balancing energy recovery efficiency and operational reliability. At the same time, it can rely on the energy storage unit to realize emergency drive in case of failure, improving the safety and adaptability of the entire machine operation.

The application provides a sewage treatment plant dissolved oxygen intelligent control method and system based on inflow load clustering analysis, and relates to the sewage treatment oxygen control technology field.The method comprises the following steps: obtaining historical operation data of a biochemical treatment process section of a sewage treatment plant;preprocessing the historical operation data to obtain a standardized historical operation data set;extracting multiple inflow flow parameters and inflow pollutant concentration parameters in the standardized historical operation data set, performing dimensionless normalization and load weighted mapping operation to obtain an inflow load comprehensive index;constructing a load feature vector set based on the inflow load comprehensive index; and performing natural breakpoint clustering analysis on the load feature vector set to divide a continuous feature space into final typical inflow load working condition intervals.The application realizes the feedforward, fine and low-energy consumption control of dissolved oxygen.

The application discloses a kind of combustion engine coal machine energy consumption on-line measurement and optimization management system and method, including unit operation parameter acquisition and pretreatment module, energy consumption key factor identification and consumption difference modeling module, multi-working condition energy consumption on-line measurement module, cross power plant energy consumption model integration and management module, energy consumption anomaly diagnosis and optimization decision module, data visualization and authority management module;The application adopts on-line automatic measurement to replace manual calculation, completely eliminates human error;Through quantitative consumption difference model adaptation multi-working condition operation characteristics, core energy consumption index measurement result is stable and reliable, provides accurate data support for production decision-making.Establishes cross power plant, multi-unit energy consumption model unified collection, optimization, management mechanism, breaks model island, improves model reusability and working condition adaptation ability, reduces repeated development cost.