33results about How to "Compliance with control requirements" patented technology

The invention provides a variable cycle engine transition state optimization method based on a large-scale global optimization technology, and belongs to the technical field of aero-engine transitionstate control optimization. A transition state control optimization problem is converted into a large-scale global optimization problem; a competitive particle swarm algorithm is adopted to carry outoptimization search on a single-step increment sequence of a control input quantity, the defects that a traditional SQP algorithm depends on model characteristics, the later convergence speed is low and the traditional SQP algorithm is prone to falling into a local optimal solution are overcome, and certain rapidity and transportability are achieved.

The invention relates to a flying dust detection equipment and dust fall spraying equipment system for construction site environment regulation and control. The system comprises a flying dust detection intelligent sensor, a dust falling spraying control intelligent sensor and a background management system connected with the flying dust detection intelligent sensor and the dust falling spraying control intelligent sensor, the background management system provides data acquisition management, middleware management, data fusion management and distributed management, and the functions of environment flying dust detection, acousto-optic linkage, dust falling spraying linkage and intelligent early warning are achieved. The system is based on intelligent sensing equipment, and is flexible in installation, real-time in detection, multi-terminal in display, timely in linkage, voice in reminding and high in reusability; and the system is installed in a key flying dust control area, it is guaranteed that a construction site meets the flying dust control requirement, the site construction quality is improved, and engineering quality safety management work of the building construction industryis strengthened and perfected.

The invention provides an autotrophic and heterotrophic synergistic denitrification composite nitrogen removal filter material and a preparation method thereof, and can solve the problems that a porous autotrophic and heterotrophic synergistic denitrification composite nitrogen removal filter material prepared by a disclosed technology at present is low in material strength and cannot meet the high-strength reaction requirement of a filter tank. The autotrophic and heterotrophic synergistic denitrification composite nitrogen removal filter material is characterized by being prepared from the following raw materials in parts by weight: 80 to 400 parts of sulfur, 12 to 60 parts of water-soluble organic acid salt and 0 to 100 parts of insoluble carbonate. The water-soluble organic acid salt is used for pore-forming on the surface, on one hand, the water-soluble organic acid salt is suitable for adhesion growth of bacteria and can shorten the starting time, and on the other hand, the internal organic acid salt is treated to be in a stable state due to adhesion of sulfur, the strength of the material cannot be damaged, and the high-strength reaction requirement of the filter tank can be met.

The invention discloses an elevator car controller based on an embedded STM32 chip. The elevator car controller comprises a micro processor module, an input module, an output module, a communication module and a power module. The micro processor module is the STM32 chip. The input module comprises a door opening and closing input part, a full load input part, a driver input part, an elevator locking input part and a floor button (lamp) circuit. The output module comprises a liquid crystal screen output part, a buzzer output part, a passing chime output part, a fan output part and an illumination output part. The communication module is a CAN communication circuit. The power module supplies a power supply to the whole controller. The elevator car controller is simple in structure, advanced in design, high in real-time controllability and response speed, and good in safety; and meanwhile, the number of peripheral components and parts is decreased, the production cost is reduced, and the elevator car controller is suitable for large-scale production and can serve many small and medium-sized elevator enterprises.

The invention discloses a desulfurization slag system of ultralow-sulfur raw steel and preparation and application methods thereof. The desulfurization slag system is prepared from the following components in percentage by weight: 55-75 percent of CaO, 10-25 percent of CaF2 and 10-20 percent of CaC2. The desulfurization slag system is prepared by mixing fluorite, dry active lime and calcium carbide according to the percentage. The CaO-CaF2-CaC2 slag system is used for desulfurization and deoxidation processing, can simultaneously meet silicon and aluminum requirements, reach higher product indexes and fully satisfy the requirement for secondarily hardening steel. By adopting the invention, ultrahigh-purity pure iron can be prepared by fully utilizing traditional equipment, raw materials are provided for developing AerMet100 steel according with the ultrahigh-purity requirement, and the technical gap between China and developed countries in the world in the field of pure iron metallurgy can be shortened.

The invention discloses a stress surface variable piston and belongs to the technical field of vehicle speed control systems. The stress surface variable piston comprises a piston body, a piston ring group, springs and positioning pins; a pressure-relief oil hole is machined in the end surface of the piston body; an oil discharge hole is machined in the bottom surface of a chamber body of the piston body; the piston ring group is formed by piston rings, wherein the diameters of the piston rings are gradually increased in turn; the working surface of the large diameter of piston ring is a plane which is formed from the edge of the end surface and is concaved inward; the working surface of every other piston ring is a bottom surface of an annular groove formed in the end surface; an L-shaped oil hole of every piston ring penetrates the inner circumferential surface of the piston ring and the bottom surface of the annular groove; the piston ring group is flexibly arranged in the chamber body of the piston body through the springs and the positioning pins; the piston rings are stepwise arranged according to the diameter size order in a sleeving mode in turn; elastic coefficients of the springs are increased in turn along with the increase of the diameters of the piston rings. According to the stress surface variable piston, the area of the piston is stepwise increased according to different oil pressure values when oil charge is performed on a piston cylinder and accordingly the unstable control caused by mixing of the oil and the gas in the chamber body can be reduced.

The invention provides a transition state optimization method for a variable-cycle engine based on large-scale global optimization technology, and belongs to the technical field of aero-engine transition state control optimization. By transforming the transition state control optimization problem into a large-scale global optimization problem, the competitive particle swarm optimization algorithm is used to optimize the single-step incremental sequence of the control input, which overcomes the traditional SQP algorithm's dependence on model characteristics, slow convergence speed and easy trapping The disadvantage of the local optimal solution is that it has certain speed and portability.

The invention relates to a dust detection device, a dust reduction spray device and a system for construction site environment control, including a dust detection smart sensor, a dust reduction spray control smart sensor, and a background management system connected with the dust detection smart sensor and the dust reduction spray control smart sensor , The background management system provides data collection management, middleware management, data fusion management, and distributed management, and realizes the functions of environmental dust detection, sound and light linkage, dust reduction and spray linkage, and intelligent early warning. Based on intelligent sensing equipment, the system has flexible installation, real-time detection, multi-terminal display, timely linkage, voice reminder, and high reusability; it is installed in key dust control areas to ensure that the construction site meets the dust control requirements, improve the quality of on-site construction, and strengthen And improve the engineering quality and safety management of the construction industry.

The invention discloses a novel elevator call-out controller comprising a microprocessor module, an input module, an output module, a communication module and a power module, wherein the microprocessor module is an STM32 chip; the input module comprises uplink input and downlink input; the output module comprises floor display output, floor landing light output and uplink and downlink instructionlight output; the communication module is a CAN communication circuit; and the power module is used for providing power for the whole controller. The novel elevator call-out controller disclosed by the invention has the advantages of simple structure, advanced design, and high real-time controllability, response speed and security; meanwhile, the number of peripheral components and the productioncost are reduced, and the novel elevator call-out controller is more suitable for mass production, and can be used for many small and medium-sized elevator enterprises.

The invention discloses a comprehensive treatment method of lead-zinc-containing wire rope sludge and lead-containing waste hydrochloric acid and belongs to the field of chemical waste treatment. The method of the invention comprises the following steps: mixing lead-zinc-containing wire rope sludge and lead-containing waste hydrochloric acid, regulating pH value to 0-0.5, extracting, transferring metal ions in lead-zinc-containing wire rope sludge into a liquid, filter-pressing, successively adding impurity removal agents into the liquid containing metal ions according to content of metal ions, and respectively carrying out fine separation on metal ions to obtain crude products containing metal ions and a purified ferrous chloride solution. Innocent treatment of lead-zinc-containing wire rope sludge and lead-containing waste hydrochloric acid is realized; and through further elaborate processing of a lead phosphate crude product, a zinc phosphate crude product and the purified ferrous chloride solution, resource utilization of lead-zinc is realized, and lead content of all non-lead products is below 20 ppm.

The present invention relates to a process for preparing cefathiamidine, in particular a process for preparing high-purity cefathiamidine. The preparation method comprises the following steps of: adding water or an aqueous inorganic salt solution as an auxiliary solvent in or after a reaction on acetyl bromide-7ACA and N,N'-diisopropylthiourea; after the reaction, cooling the mixture, and dropwise adding a crystallization solvent into the mixture, and performing suction filtration to obtain a crude product of cefathiamidine; and purifying the crude product again,and drying the crude product in vacuum to obtain the high-purity cefathiamidine. According to the preparation method provided by the present invention, residues of impurities in the cefathiamidine can be effectively reduced, the content of acetyl bromide-7ACA and the macromolecular compound impurities can be reduced to 0.1% or less or can be completely eliminated, and other residues of impurities in the cefathiamidine can be reduced to be less than 0.2%.

The invention relates to a production process of a film coating agent. The production method mainly uses high-pressure airflow to pulverize materials. In the prior art, there are problems of heavy metals and particle size of raw materials in the production process of film coating agents. The method of the invention has good crushing effect, and the particle size of the product is fine and uniform; the high-speed air flow can avoid thermal denaturation of the material; the detection of heavy metals in the finished coating agent meets the control requirements of the food and health product industries; and the production efficiency is higher.

The invention discloses an electroplating method for a circuit board of a precise circuit. The electroplating method comprises the following steps of part number selecting, forward board arranging, current setting, forward electroplating, reverse board arranging, current setting and electroplating completing, wherein the current setting includes that an arranged circuit board current-conducting plate is adjusted into an electroplating cylinder, current density is set, the current density is set to be one half of the current density of the pre-set demand for completing copper thickness, and time remains unchanged, and after the electroplating time is completed, the circuit board is taken down from a current-conducting plate, and a next process is conducted continuously. The electroplating method for the circuit board of the precise circuit uses the circuit board of the high-precision level circuit which is manufactured with a traditional gantry type electroplating wire, and therefore copper thickness uniformity difference can be controlled within 6 um, and the control demands of manufacturing the high-precision circuit level copper thickness of and below 3mil / 3mil are satisfied.

The backstepping adaptive control method of the fin stabilizer hydraulic servo simulation test bench includes a mathematical model of the fin stabilizer hydraulic servo simulation test bench, an adaptive parameter identifier, a backstepping subsystem controller 1, a backstepping subsystem controller 2, and a backstepping subsystem control Device 3, backstepping subsystem controller 4. Through theoretical analysis and hardware-in-the-loop experimental verification, it can be obtained that in the output tracking of the hydraulic servo system of the fin stabilizer test bench, the backstepping adaptive controller has significantly better dynamic performance and static performance than the conventional PID controller, and the tracking error is relatively The ratio is reduced by 60%, which can effectively reduce the influence of nonlinearity and disturbance factors of the hydraulic system, improve the tracking control accuracy of the system, and meet the control requirements of the fin stabilizer simulation test bench.

The invention discloses a radial mixed magnetic bearing feedback dissipation Hamiltonian adaptive control system. Displacement deviation, load torque and expected rotary speed are jointly input to a stable balance point calculation module; the output of the stable balance point calculation module is connected with a feedback dissipation Hamiltonian speed controller, a 2 / 3 conversion module, a PWMinverter, a current tracking type inverter and a radial mixed magnetic bearing in series in sequence; the output of the feedback dissipation Hamiltonian speed controller is a feedback controlled quantity; the output of the PWM inverter is connected with the feedback dissipation Hamiltonian speed controller through the 2 / 3 conversion module; the feedback dissipation Hamiltonian speed controller isconnected with a flux linkage adaptive updating law module; the target function of the system is established into a Hamiltonian function; based on a dynamic closed-loop system under the target function and by combination of a proper feedback control law, the flux linkage change value can be estimated quickly, quick and stable system rotary speed realization can be achieved, and requirement of thecontrol precision degree is satisfied.

The invention discloses a GEO satellite external multilayer thermal insulation assembly earthing system and method. The judgment criterion of the number of multilayer thermal insulation assembly earthing devices on a monoblock multilayer thermal insulation assembly is designed, the GEO satellite external multilayer thermal insulation assembly earthing system comprising the multilayer thermal insulation assembly earthing devices, an earthing ridge and an O-shaped terminal is designed, and an installation method and the test criterion for guiding multilayer thermal insulation assembly earthing implementation are designed. By using the GEO satellite external multilayer thermal insulation assembly earthing system and method provided by the invention, on the premise that the surface charging potential control requirements during GEO satellite in-orbit operation period are met, the defects that a plurality of earthing wires are led out of the multilayer thermal insulation assembly, but limited satellite surface earthing points cannot meet the earthing wire lap jointing requirements for the multilayer thermal insulation assembly can be overcome; and the surface charging and discharging risks of the GEO satellite can be reduced, and GEO satellite in-orbit abnormal situation caused by surface charging and discharging effects is greatly relieved.