39results about How to "Realize segment control" patented technology

A gas adjusting valve used for a gas stove comprises a valve body and a rotary disc which contacts the plane of the inner cavity surface of the valve body and rotates relative to the inner cavity surface of the valve body, wherein a gas inlet and a gas outlet are formed in the valve body. The valve body matches with the contact face of the rotary disc in a sealed mode. The rotary disc is provided with a connecting passage, and the connecting passage can selectively enable the gas outlet which is formed in the valve body to be connected or disconnected with the inner cavity of the valve body or change a connecting degree. The invention further provides an electric control gas adjusting valve used for the gas stove and the gas stove with the gas adjusting valve or the electric control gas adjusting valve. Due to the technical scheme, the problems that the existing gas stove adopts a plug valve which is inconvenient to manufacture and is high in cost can be avoided.

The invention provides a grid-connected photovoltaic power station reactive power-voltage control method based on power prediction. A photovoltaic AVC system is used to coordinate reactive power adjusting equipment in a grid-connected photovoltaic power station so that grid-connected point voltage control is completed. The method comprises the following steps of based on power prediction data, determining a reactive power loss of the grid-connected photovoltaic power station when grid-connected point voltage adjusting is ended; determining a reactive power adjustment total amount of the grid-connected photovoltaic power station; determining reactive power limits of a photovoltaic inverter and a static reactive power compensation device; carrying out switching control of a parallel compensation capacitor group; and carrying out control on the photovoltaic inverter and the static reactive power compensation device. In the invention, photovoltaic power station control sensitivity is accurately calculated and good reactive power-voltage control precision and a good response speed are possessed; and power prediction and photovoltaic power station AVC system are combined so as to realize segmentation control of a photovoltaic power station capacitor group and good balance between reactive power-voltage control and equipment protection.

The invention relates to the field of road tunnel construction and discloses a road tunnel construction ventilating structure and a ventilation control method thereof. The road tunnel construction ventilating structure comprises an intake roadway and a return roadway; the front end of each of the intake roadway and the return roadway is provided with a working face; a front transverse passage is communicated with the front of both the intake roadway and the return roadway; a fan facing the front end of a tunnel is disposed within the intake roadway; another fan opposite to the front end of the tunnel is disposed within the return roadway; at least one middle transverse passage all communicated with the front transverse passage is disposed between the front transverse passage and an opening of the tunnel; the middle transverse passages are connected between the intake roadway and the return roadway; each of the front transverse passage and the middle transverse passage is internally provided with one fan facing the return roadway. The road tunnel construction ventilating structure and the ventilation control method thereof have the advantages that power consumption can be greatly lowered at the premise of keeping the pollutant concentration in a designed range and intake of the transverse passages helps allow segmental control for the pollutant concentration of the return roadway.

An external sunshading shutter device comprises a blade angle fixing frame, shutter blades, a blade opening-closing fixing frame, a blade angle control structure and a blade opening-closing control structure. One end of the blade angle control structure and one end of the blade opening-closing control structure are both fixed to the left end and the right end of each shutter blades. The angle control structure comprises a blade angle control motor, nylon drawing wires and angle control connecting components, and the blade opening-closing control structure comprises a blade opening-closing motor driving rotary shaft, a driven rotary shaft, a variable-section linkage strap and opening-closing control connecting components. The nylon drawing wires are used for tensioning to control blade angles, the blades are reset by means of elasticity of a tensional spring, and closing of the blades one by one from bottom to top is realized by means of the variable-section linkage strap. Angles and opening-closing of the blades are controlled by two motors respectively, three states of full-open, full-closed and upper-closed lower-open of the shutter blades can be realized, the problem of contradiction between sun-shading and lighting is solved, and sun-shading by the upper portion, lighting by the lower portion and energy saving and consumption reduction are realized.

The invention relates to a baking-free preparation method of compounding food additive lactic acid powder (solid lactic acid) through extruding and mixing of a twin screw extruder. The method comprises the following steps of adding calcium lactate solid and lactic acid liquid in a twin screw extruder from different feed openings, under the effect of a screw unit assembly specially designed in theextruder, enabling the calcium lactate solid and lactic acid liquid to be in sufficient contact, mixed and transported forwards, and through working procedures of performing vacuum air extraction, performing dehydration, performing pelleting, performing airing (cooling), performing standing, performing crystallization and rearrangement, performing crushing and sieving, adding an anticaking agent,performing mixing and the like, compounding food additive lactic acid powder (solid lactic acid) products are finally made. According to the lactic acid powder obtained by the method disclosed by theinvention, the content of lactic acid of unit mass is high, much non-lactic acid foreign matter is introduced, the compounding food additive lactic acid powder (solid lactic acid) easily dissolves inwater, lactic acid substances are positioned in a molecule dissociating state, and unique and harmonious flavor of raw material products can be reflected and expressed in the application effect evaluation of goal products.

The invention relates to a separated computing device based on a 6T-SRAM, which comprises a storage and calculation unit array, and is characterized in that the storage and calculation unit array comprises storage and calculation units arranged in a matrix manner; each storage and calculation unit comprises a 6T-SRAM, a transistor M7, a transistor M8 and a capacitor; in each storage and calculation unit, a gate of the transistor M7 is connected with a weight storage point of the 6T-SRAM, a first pole of the transistor M7 is connected with an input signal end, a second pole of the transistor M7 is connected with a first end of the capacitor and a read bit line RBL, a second end of the capacitor is grounded, a gate of the transistor M8 is connected with a control signal end, and both the first pole and the second pole of the transistor M8 are connected with the read bit line RBL; and the read bit lines RBL of the storage and calculation units in each column are connected in a collinear manner. The accuracy of the calculation result is improved.

The invention belongs to the technical field of printing and dyeing equipment, and discloses an intelligent jet airflow overflow combination machine. The intelligent jet airflow overflow combination machine comprises a combination machine body composed of a plurality of sets of airflow overflow nozzles which achieve high-speed reciprocating motion of fabric between cloth containing cylinders through a high-pressure water pump, the front part of a combination body has a cloth feeding function, and the rear part of the combination body has a cloth discharging function. According to the intelligent jet airflow overflow combination machine, a plurality of sets of U-shaped cloth containing cylinder bodies are connected in series, the fabric is driven to reciprocate through the high-speed large-flow water pump between the cylinder bodies, and the fabric continuously runs from a cloth feeding direction to a cloth discharging direction at the production process speed of 20-100 m/min; the clothcontaining amount of each cloth containing cylinder is about 1200 m (according to the difference of fabric gram amounts), the cloth containing amount of each cloth containing cylinder is detected bya gravity sensor in the production operation process, signals generated by the gravity sensor are processed by a PLC, the flow speed and the flow direction of water are controlled by controlling the pump and a valve, the equipment operates intelligently, and the production efficiency is greatly improved.

The invention relates to a method for monitoring continuous bridge construction with a simply-supported structure, and belongs to the field of civil engineering. The method comprises the following steps: S1, establishing an expert database; S2, establishing a whole construction phase growing BIM bridge structure model; S3, collecting and processing geometric data of a first construction phase completed bridge after the work condition of the first construction phase is completed so as to form an actually measured three-dimensional image of the phase; S4, performing deviation comparison on the actually measured three-dimensional image and the BIM bridge module to obtain a deviation control value; S5, inputting the deviation control value to the expert database, and feeding back constructioncontrol data; S6, completing next construction phase according to guidance of construction control data, and upgrading the expert database; and S7, automatically collecting real-time three-dimensionalimage of the bridge once again, and comparing with the whole construction phase growing BIM bridge structure model to form circulation. The method realizes visualized monitoring and controlling basedon the construction process.

The invention discloses a vehicle door obstacle early warning method and device, equipment, and a storage medium. The method includes the steps of obtaining a three-phase Hall pulse signal outputted by a Hall element on a stator winding of a vehicle door drive motor and a Hall pulse count value corresponding to the three-phase Hall pulse signal in the opening/closing process of a vehicle door; setting a current threshold value in a current control mode and a time threshold value in a Hall pulse control mode according to the Hall pulse count value; and executing the current control mode and theHall pulse control mode so as to detect a vehicle door obstacle and output a vehicle door anti-pinch early warning signal. According to the vehicle door obstacle early warning method and device, theequipment, and the storage medium, the current threshold value and the time threshold value are set through the Hall pulse count value, so that segmented control over the opening/closing process of the vehicle door is achieved, and the misjudgment problem caused by the sudden change of the resistance of the vehicle door on a curve part is solved; and by combining double mechanisms of current detection and Hall pulse detection, the precision of obstacle detection is effectively improved, and the real-time performance and the sensitivity are relatively high.

The invention relates to the technical field of automobile control, and particularly relates to a segmented processing method for the torque of a starting condition. The starting stage of a vehicle isdivided into a front section and a rear section, wherein the front section and the rear section are respectively controlled by adopting different torque rising rates; when the vehicle is a manual gear vehicle, the torque rising rate of the front section is less than that of the rear section; when the vehicle is an automatic transmission vehicle, the torque rising rate of the front section is greater than that of the rear section. In the starting stage, different torque rising rates are adopted to achieve segmented control, so that power of different power assemblies can be guaranteed under the starting working condition, meanwhile, smooth transition of torque can be achieved, and vehicle shifting is prevented.

The invention relates to the technical field of chemical production, in particular to a clean vanadium extraction method and system for a vanadium-containing material. According to the method, the vanadium-containing material subjected to blank roasting, ammonia water and ammonium salt are uniformly mixed according to a certain proportion and then are granulated, and ammoniation-deamination reaction is carried out step by step, so that the technical problems that in the ammoniation-deamination process, a reaction system generates a large amount of gas due to mechanical stirring and difficult reaction temperature control, normal operation of equipment is influenced, and the working environment is polluted are solved; the problem of material wall attachment caused by local overheating in the ammoniation-deamination process can be avoided, ammonia gas generated in the deamination reaction can be collected and recycled for preparation of vanadium extraction auxiliary materials, namely ammonia water and ammonium salt, the whole vanadium extraction process can be carried out under normal pressure and is clean, efficient, simple and easy to control, and the vanadium extraction efficiency can be improved while the production cost is reduced.

The invention discloses a multi-cavity vacuum suction tool device, and aims to provide a multi-cavity vacuum suction tool device which is controlled in a segmented manner, saves resources and can still carry objects with special shapes and sizes. Comprising a mounting shell and a top cover, the top cover is communicated with the series connection pipe, the mounting shell is provided with an inner cavity, a mounting plate is arranged in the middle of the bottom face of the inner cavity, and a telescopic covering device is arranged below the mounting plate. A plurality of evenly-distributed mounting holes are formed in the bottom face of the inner cavity, sucker assemblies are elastically connected into the mounting holes, connecting holes are formed in the inner side walls of the mounting holes, one ends of the connecting holes are communicated with the inner cavity, and the other ends of the connecting holes correspond to the sucker assemblies. The method has the beneficial effects that subsection control is realized; objects of different sizes and different shapes can be sucked and carried. And the sucking and carrying stability is ensured.

The invention discloses a method and a process system for preparing gasoline and diesel oil by mixing and hydrogenating coal tar and biomass oil, and belongs to the technical field of petrochemical engineering energy. The method comprises the steps of carrying out catalytic hydrogenation on coal tar to obtain a coal tar system subjected to hydrogenation pretreatment, mixing the coal tar system subjected to hydrogenation pretreatment with biomass oil to obtain a mixed oil system, continuously carrying out catalytic hydrogenation on the mixed oil system, and carrying out rectification treatmentto obtain a gasoline and diesel oil product, wherein the coal tar system subjected to hydrogenation pretreatment is subjected to catalytic hydrogenation to form a hydrogen-donating solvent, and hydrogen free radicals are utilized to perform hydrodeoxygenation on the biomass oil. The system disclosed by the invention is provided with a plurality of staged reactors, so that the staged catalytic hydrogenation reaction is realized, and the coal tar is subjected to hydrogenation pretreatment and then is mixed with the biomass oil for catalytic hydrogenation. Compared with a single raw material hydrogenation technology, the hydrogenation speed is high, the coking influence is small, and the raw material adaptability is also improved.

The invention relates to a control method of a multi-split system outdoor fan and related equipment. The method comprises the steps of obtaining running information of a multi-split system; accordingto the running information, calculating system actual running high pressure value; according to the system actual running high pressure value, determining a corresponding system running saturation temperature value; according to the system running saturation temperature value, and a preset temperature control interval, determining the temperature control intervals where the system target running saturation temperature is located, wherein at least two temperature control intervals are arranged; and controlling the rotating speed of the outdoor fan so as to determine the temperature control intervals, where the system target running saturation temperature is located, of the system actual running saturation temperature. Through the method or related equipment, the outdoor fan can be preciselycontrolled, and the multi-split system efficacy can be improved.

The invention discloses a solar non-pressure-bearing temperature-saturation preventing control system. The control system comprises a heat collecting device and a water storing box, wherein a water inlet pipe and a water outlet pipe are arranged between the water storing box and the heat collecting device, and the water storing box is communicated with a water feeding pipe; the control system is characterized in that the heat collecting device is internally provided with a temperature sensor, the water inlet pipe is provided with a water pump and an electromagnetic valve A, the water outlet pipe is provided with an electromagnetic valve B, and the water pump, the electromagnetic valve A and the electromagnetic valve B are electrically connected with a control device; and as an improvement, the control device comprises a circuit board which is provided with a plurality of controlling groups, the controlling groups are connected with a power supply, the circuit board is electrically connected with a transformer through a relay, and the transformer is electrically connected with the temperature sensor, the water pump, the electromagnetic valve A and the electromagnetic valve B. The solar non-pressure-bearing temperature-saturation preventing control system provided by the invention can realize the subdivision control of the temperature, in addition, the circuit board is also provided with an antifreezing module and a low temperature circulating module which avoids freezing, and the antifreezing module realizes the individual control of electrical heating.

The invention provides mechanical vibration type treatment equipment for marine aquaculture sewage treatment, and relates to the technical field of sewage treatment.The mechanical vibration type treatment equipment comprises a U-shaped shell, the top of the U-shaped shell is connected, a partition plate is fixedly arranged on the inner side of the top of the U-shaped shell, and a transmission shaft, a driven shaft A and a driven shaft B are rotationally arranged between the partition plate and the U-shaped shell; the transmission shaft is located between the driven shaft A and the driven shaft B. According to the transmission shaft, the driven shaft A and the driven shaft B, the intermittent transmission effect is provided, the transmission gear is a quarter gear, the tooth surface tooth number of the transmission gear is half of the tooth surface tooth number of the driven gear A and the driven gear B, and a mechanical differentiation structure can be formed; compared with the prior art, original electric device control is replaced, automatic subsection control is achieved by means of accuracy reduction of mechanical transmission, errors can be avoided, and the problems that existing sewage treatment equipment is high in control cost, and it cannot be guaranteed that time errors do not occur in intermittent operation are solved.