83results about How to "Guaranteed control quality" patented technology

The invention discloses a microminiature unmanned aerial vehicle longitudinal control method with random delay of a distributed network, and belongs to the field of flying control technology. The method includes firstly setting up an unmanned aerial vehicle longitudinal system model and designing a flying control system without network delay, secondly carrying out random robustness analysis and design on the flying control system on the condition of different network random delay, ensuring a gain scheduling strategy of the flying control system, and lastly carrying out closed-loop six-free-degree freedom nonlinear Monte-Carlo simulation verification. According to the control method, deterioration of quality of the flying control system due to network delay is relieved, and stability of the distributed type system can be strengthened. Through utilization of the random robust analysis and design method and the gain scheduling strategy based on linear interpolation, the obtained control has the advantages of being simple, and facilitating engineering realization. Control quality of an original system can be well maintained on the condition of changes of large network delay.

The invention discloses a multi-rotor craft control allocation method which can be applied to multi-rotor craft flight control. According to the multi-rotor craft control allocation method, an expected attitude angle and height computing module computes to obtain expected attitude angle and height values according to corresponding attitude angle and height instructions, and subtracts actual attitude angle and height values fed by attitude angle and height sensors from the expected attitude angle and height values to obtain attitude angle and height control errors, a control quantity resolving module computes the attitude angle and height control errors to obtain corresponding pitch control quantity, roll control quantity, yaw control quantity and throttle control quantity, and a control allocation module allocates the four pitch control quantities to obtain control quantity of each rotor. The control quantity of each rotor is allocated to a corresponding actuator of the multi-rotor craft, so that a multi-rotor craft can be controlled effectively. The multi-rotor craft control allocation method is easy to implement and high in efficiency, and is integrated with a multi-rotor controller so as to achieve effective control of the multi-rotor craft commonly.

The invention relates to a material flow system, particularly, relates to the material flow system feeding crude tobaccos according to ratio in crude tobacco production. The material flow system comprises a material flow central control system 4, a crude tobacco boxing area 1, a high-rack warehouse storage area 2 and a box turnover feeding area 3, wherein, the crude tobacco boxing area comprises a boxing area 12 and an empty tank buffer area 13; the high-rack warehouse storage area comprises a warehouse-out platform 21 and a storage rack 22; and the box turnover feeding area comprises a material pouring buffering station 32 and a material feeding station 31. The material flow system converts extensive production of crude tobaccos to fine production, and achieves standardized operation of material flow and automatization management; compared with the traditional operation model, the material flow system can reduce the labor intensity, can improve the tobacco formula accuracy, and can ensure chemical composition constancy of finished tobaccos; and the material flow system can change the production organization, and can change the feeding production organized artificially into the grouping feeding production adopting automatic computer formulating.

The invention discloses a thermal power generating unit denitration system based on deep learning, and the system comprises a NOx concentration target value setting unit, a dynamic matrix control DMCcontrol unit, a PID control unit, an ammonia injection valve, an SCR reactor, a hearth outlet NOx concentration prediction module unit and an intelligent feedforward controller unit. According to theoptimization control method, data modeling is carried out on the basis of historical data and real-time data of target power plant operation, boiler side adjustable parameters serve as input, SCR outlet NOx concentration measured values serve as output, and a prediction model is constructed through a least square support vector machine algorithm. According to the thermal power generating unit denitration system and the optimal control method, precise ammonia spraying control over the SCR system is achieved, the problems that the system response time is short, and parameter fluctuation is largeare solved, and the control quality of the system is ensured.

The invention discloses a combined cooling heating and power supply system prediction control method based on a state observer. The combined cooling heating and power supply system prediction control method comprises the steps of: S1, acquiring a step response model of a miniature gas turbine combined cooling heating and power supply object; S2, determining a state-space model of the combined supply object; S3, setting parameters of the controller, and predicting a future state of the combined supply system; S4, initializing the controller; S5, calculating deviations; S6, correcting state quantity online; S7, predicting future output; S8, calculating an optimal control increment for fuel quantity, a backheating valve opening degree and a high-pressure refrigerant steam valve opening degree at the next moment; S9, calculating an optimal control quantity for fuel quantity, a backheating valve opening degree and a high-pressure refrigerant steam valve opening degree at the next moment; S10, outputting the optimal control quantity, and calculating and updating an output prediction value at the next moment according to measurement signals; and carrying out the steps S5-S10 repeatedly in each sampling period. The combined cooling heating and power supply system prediction control method can improve the control quality.

The invention discloses an integrated core network and an accessing method thereof. The integrated core network is used for accessing a trusted non-3GPP access network and a 3GPP access network; an access management entity is arranged in the 3GPP access network; an IWF is connected with the access management entity; and / or, the IWF is connected with an S-GW in the 3GPP access network; and / or, the S-GW in the 3GPP access network is connected with the access management entity; and when UE is accessed to the integrated core network through the trusted non-3GPP access network, the IWF is used for forwarding an IP address request message to the access management entity or the S-GW when receiving the IP address request message or sending a session establishment request message to the S-GW after receiving an authentication success message in the 3GPP access network. According to the invention, business and management bottlenecks due to the fact that a network has only one AC are avoided, and access control and quality of service of the integrated network are well ensured.

The invention relates to the technical field of clinical infectious disease marker detection, in particular to heparin binding protein detection test paper for immunomicrosphere chromatography detection. A method includes the following steps that a calibration curve is prepared; a detection buffer solution containing rabbit anti-human heparin binding protein antibody is prepared, fluorescent or colorful latex microsphere-marked chicken anti-rabbit antibody is prepared, a sample pad coats a solid phase, a detection line coated with a mouse anti-human heparin binding protein antibody and a reaction pad coated with a goat anti-rabbit antibody quality control line are prepared, a separation membrane is assembled, a test paper strip is assembled, a clinical sample is detected, and the dried test paper strip is placed in an aluminum foil bag. The heparin binding protein detection test paper for fluorescence chromatography detection has high cost effectiveness, and the level of heparin binding protein in body fluids of patients is quantitatively detected and evaluated. The method is used for a POCT detection system and screening or detection of changes of heparin binding protein in the body fluids of the patients to determine a detection method of infectious disease markers so that the heparin binding protein detection technology can become a clinical conventional detection project.

The invention discloses a PID controller, a parameter self-tuning extension module and an implementation method thereof. The PID controller and the parameter self-tuning extension module thereof comprise a temperature signal acquisition unit and a PID control and parameter self-tuning unit. The temperature signal acquisition unit is used for collecting temperature data of a controlled object and sending the temperature data to the PID control and parameter self-tuning unit. The PID control and parameter self-tuning unit is used for conducting parameter self-tuning according to the temperature data and outputting a tuning result to a main controller through an extension bus so that the parameter of the PID controller can be examined and / or modified conveniently through the main controller. Temperature measurement and PID control can be achieved on a PLC extended function module, user PLC program resources are saved, the self-tuning function is further achieved, hence, user parameter setting time is saved, parameter setting accuracy is improved, and therefore the control quality and robustness of the controller are guaranteed.

The invention discloses a method for achieving optimizing control of the load of a thermal power generating unit in a PROPR mode. The method specifically comprises: step one, an AGC load instruction value issued by a dispatching center is analyzed and optimized through a function; step two, the corrected AGC load instruction value and a unit actual power value are subjected to different and judgment to generate the steam turbine master control feed-forward amount; step three, the corrected AGC load instruction value and the unit actual power value are subjected to the different and judgment to perform load change rate switching. The method performs feed-forward optimizing adjustment on a steam turbine master control of the unit by analyzing the load instruction value and the actual power value of the unit and judging the load real-time change situation of the unit, performs broken line optimizing adjustment on the load change rate of the unit, accordingly improves the adjusting accuracy and a response time index effectively while adjusting the rate index of the unit in the PROPR mode, and ensures supply and demand balance of power grid load and the stability of power grid frequency.

The invention discloses a multi-target optimization prediction control method based on trapezoid interval soft constraint. The multi-target optimization prediction control method comprises a step1, establishing of a prediction model; step2, calculation of prediction out; step 3, feedback of correction; step 4, building of a trapezoid interval outside a tolerance interval; step 5, calculation of an optimization variable (img file+DDA0001238247080000011. Tif wi=70 he=47); step 6, building of a multi-target function; step 7, conversion of a multi-target problem into a single-target problem by using an omega-constraint method; step 8, acquisition of an optimal control increment by using a sequential quadratic programming algorithm. When the controlled variables exceed the tolerance interval, the controlled variables can enter the tolerance interval quickly to guarantee product quality. The building of the multi-target function is used to effectively prevent the mutual coupling among the various controlled variables, and the interval range of the constraint function is optimized by adopting an iterative algorithm, and then rapidity of operation of a system is guaranteed. By adopting combination of a set value control and a trapezoid interval soft constraint, the system can be operated at an ideal target value, and at the same time, the robustness and the freedom degree of the system area guaranteed to the greatest extent.

An intelligent method for controlling the granularity of PTA particles in refined terephthalic acid (PTA) production includes such steps as selecting the temp and discharge flow of hydrogenating reactor, and the liquid levels and temp of the first and the second crystallizers and using them as the input variables of the soft measuring system of granularity, creating the affection relation of primary operating parameters to PTA granularity, real-time continuous acquisition of procedure data as the soft measured values, determining the difference between settings and measured values, and automatically controlling the liquid levels and temp of the first and the second crystallizers.

The invention provides a platelet antibody detection kit and a use method thereof. The platelet antibody detection kit comprises a detection plate (1), six gel tubes (2) and an opening sealing film (3), wherein the six gel tubes (2) are arranged at the top end of the detection plate (1) in a left and right arranging way; the opening sealing film (3) is arranged above the detection plate (1), and covers the top ends of the six gel tubes (2); each of six gel tubes (2) contains an anti-human globulin reagent and sephadex; the first gel tube and the sixth gel tube are respectively a positive contrast tube and a negative contrast tube, and the second gel tube, the third gel tube and the fourth gel tube are reaction tubes. The platelet antibody detection kit has the advantages that anti-human IgG and IgG sensitized erythrocyte are used as indication systems to replace anti-human IgG-coated aldehydated erythrocyte, the detection result is clear and accurate, and the repeatability is strong; the effect that detection result can be accurately judged by the naked eye and automatic robot at the same time, and the detection result is easily standardized.

A fluorescence analysis reagent kit for detecting homocysteine in blood is disclosed. It uses a novel internal standard thiohydroxy acetic acid for quantity control and the chromatographic peaks of said internal standard and homocysteine can be clearly separated from each other. Its advantages are less specimen, high correctness, high speed, and low cost.

The invention provides a power device active junction temperature control system and method. The system comprises a junction temperature control unit, a junction temperature control link, a shell temperature control link, a power device and a radiator. The junction temperature control unit calculates and outputs a control quantity to the crust temperature control link and the shell temperature control link according to the difference between the real-time junction temperature of the power device and a given junction temperature. The junction temperature control link calculates a traction control signal output to the power device according to the control quantity output by the crust temperature control unit and the traction control input signal, and actively controls the temperature betweencrusts of the power device. The shell temperature control link calculates a control value output to the variable frequency water pump according to the control quantity output by the junction temperature control unit, and actively controls the thermal resistance of the radiator by adjusting the water outlet flow of the variable frequency water pump. The technical problems that the overall reliability of the converter is reduced and the service life of the converter is shortened due to over-high working average junction temperature level and over-large junction temperature fluctuation amplitudeof the power device can be solved.

The invention discloses a direct current compressor driving circuit, which comprises an MCU and an inversing circuit, wherein the inversing circuit comprises two groups of controlling signal ends which are six paths, namely three-phase direct current positive pole ends Up, Vp, Wp and three-phase direct current negative pole ends Un, Vn, Wn, the MCU comprises at least two paths of PWM output end mouths, at least one way of PWM output end mouth is connected with a multi-channel selective circuit, the PWM output end mouth which is carried out multipath expansion is correspondingly connected with the corresponding controlling signal end of the inversing circuit, and a gating controlling end of the multi-channel selective circuit is used to receive channel selective signals which are output by the MCU. The PWM output end mouth of the MCU chip is carried out the multipath expansion through designing an end mouth expanding circuit on the driving circuit, therefore driving control for 120 degrees on a direct current compressor can be realized through adopting the MCU chip with low end mouth resource and low cost, hardware cost is greatly reduced, and market competitiveness of products is increased.

The invention relates to a thermal power generating unit flexible coordination control method suitable for deep peak regulation operation. The method is characterized in that a reverse compensation channel of a fuel quantity instruction to a power generation load instruction is added on the basis of a traditional machine-furnace following mode coordination control system, and meanwhile, a main steam flow signal is used for constructing a flexible factor; the gain of the reverse compensation channel is corrected by the flexible factor in a product mode to obtain a reverse power generation loadinstruction bias value, and the unit power generation load instruction is corrected by using the reverse power generation load instruction bias value, so that the control quality of the power generation load and the steam pressure in front of the steam turbine is preferentially ensured under the conventional load working condition; and the combustion stability is preferentially ensured under the deep peak shaving working condition. The change rate and the downward change amplitude of the fuel quantity instruction are reduced through the reverse compensation channel of the fuel quantity instruction for the power generation load instruction, the control effect under various working conditions is guaranteed, and the control requirements of the thermal power generating unit on the conventionalload working condition and the deep peak regulation working condition can be met.

This invention discloses a heat-accumulation burner controlling method of the air single warm-up separate reversing valve which includes the burner ignition steps, opening the air cycling valve without flame sensing and assistant burner ignition if the furnace temperature is above 800 degree, main coal gas valve. The burning control steps are that it closes the smoke valve, opens the air valve and finally opens the coal gas valve if the burner is under use, then the burning control finishes. If the burner is not under use, the burning control steps will not be initiated. The warm-up control steps are that it closes the coal gas valve, closes the air valve and finally opens the coal gas valve if the burner is under use. This invention is of simple operation, high controlling quality, low developing cost, and convenient maintain. It is appropriate to the burning control of the mill furnace, annealing oven of the air single warm-up separate reversing valve.

The invention provides a method for measuring saponin content in a lychee seed extract. The method comprises steps as follows: (1), preparing a reference substance solution; (2), preparing a test article solution; (3), precisely absorbing a ginsenoside reference substance solution for sample introduction, and measuring a peak area to obtain a curvilinear equation; and (4), precisely absorbing the test article solution for sample introduction, measuring a peak area, and calculating the saponin content in a sample according to a standard curve. The method is based on high performance liquid chromatography-coupled with evaporative light scattering detection and has good specificity, reproducibility and stability, so that quality control and medication safety of a product can be guaranteed.

The invention discloses a method for quickly demarcating a construction standard of a brick wall and a plaster layer. The method includes the following steps: (1), preparing a construction standard demarcating device which comprise a clamping device, two scale rods and a construction standard component which comprises a pulling line and a drop hammer, wherein a line hanging member is arranged on each scale rod; (2), utilizing the clamping device to fix the scale rods on vertical faces of two uprights respectively, wherein an edge face of each scale rod is coincident with a pre-demarcated vertical construction standard line of the brick wall; (3), arranging the pulling line between the scale rods, wherein the pulling line forms a horizontal portion and a vertical portion, and the horizontal portion is considered to be the construction standard of the brick wall or the plaster layer. The invention further discloses a brick wall or plaster layer construction standard demarcating device applying the method. By the method, the construction standard of the brick wall and the plaster layer can be quickly built, work efficiency of verticality and smoothness construction of the building brick wall or the wall surface plaster layer is improved, and control quality of linearity of the brick wall is improved.

The invention discloses an intelligent drive control system. The intelligent drive control system is characterized by comprising a signal collecting module, a transmission module, an analysis module and a control module, wherein the signal collecting module is used for collecting signal tracks, is connected with the transmission module through a wired or wireless transmission mode and is used for sending data of the collected signal tracks, and the signal tracks refer to position tracks, which are obtained through a camera device and a sensor device, of a specific object nearby one or multiple signal receiving devices; the transmission module is used for connecting and transmitting various sensor signals and control signals; the analysis module is used for analyzing and processing the signal tracks provided by the signal collecting module and generating corresponding control signals; the control module is used for receiving the control signals generated by the analysis module and a manual control signal, and is used for carrying out real-time control on other devices of the intelligent drive control system through the transmission module. According to the intelligent drive control system disclosed by the invention, different tracks can be recognized into different control commands according to different track rules, the labor cost and the time cost which are needed for manual control are reduced, and the control quality is ensured at the same time.

The invention provides a temperature control system of a power curing oven. The temperature control system comprises a curing oven, a radiant heating unit, an oven temperature detection unit and an execution mechanism, an upper computer, a lower computer and a remote station, wherein the radiant heating unit, the oven temperature detection unit and the execution mechanism are arranged in the curing oven. The upper computer is connected with the lower computer by use of fast Ethernet. The lower computer is connected with the remote station and the radiant heating unit by use of a field bus, respectively. The temperature control system of the power curing oven has the advantages that a more humanized operating interface is convenient for a user to use and operate, the temperature rise rate of the curing oven can be adjusted by use of the HMI, the set values of the temperatures are automatically calculated by use of a model, the temperature control accuracy in the product forming process is high, the product control quality is effectively guaranteed, and the control system is simple and high in degree of automation. The upper computer is capable of monitoring all the data and the working conditions in the field by use of configuration software, and convenient for monitoring and managing the product forming process. The temperature control system is capable of allowing the user to inquire about the historical forming data of each batch of products.

The invention discloses a distributed PID type dynamic matrix control method for a furnace pressure of a coke furnace. Real-time step response data are collected to establish a dynamic matrix model vector of a controlled object; an on-line optimization realization problem of a large-scale system is converted into optimization solution problems of all small-scale sub systems; and each sub system in a network environment is used as an intelligent agent and all intelligent agents complete information exchange through network communication. And then an improved performance index is established by introducing a PID operator; PID type dynamic matrix controllers of all intelligent agents are designed based on the nash optimality idea; a real-time control rule at a current time is applied to each intelligent agent, and a time domain rolls to a next time; and the optimization process is repeated, thereby completing the optimization task of the whole large-scale system. Using the method, the control quality of the system is guaranteed; defects of the traditional DDMC method is overcome effectively; and the freedom degree of the control parameter design is improved.

The invention discloses a high pressure liquid storage tank control-based high temperature heat pump system and a control method thereof. The whole high temperature heat pump system is divided into five main modules, namely an evaporator, a condenser, a compressor, a capillary pipe and a high pressure liquid storage tank. Operation in stable states of pressure of the evaporator, pressure of the condenser and the mass flow of the capillary pipe is realized by main measures of guaranteeing the condensing pressure of the condenser and carrying out feedforward control on industrial wastewater transmission temperature by a high pressure liquid storage tank energy storage control method. According to the high pressure liquid storage tank control-based high temperature heat pump system, by construction of an inner loop control method of the high pressure liquid storage tank for controlling pressure at a condenser outlet and carrying out feedforward control on a high temperature heat source side, coordinative control over the system can be quickly realized under a condition of the frequency of the compressor, so that the dynamic adjustment quality of the evaporator and the condenser are improved; meanwhile, by the adoption of the high temperature heat pump system with the high pressure liquid storage tank, normal operation of the compressor can be guaranteed, and the heat exchange effect of the condenser is enhanced; and an efficient circulating refrigerant guarantees efficient, stable and safe operation of the system.

A lateral guidance method applied on a large landing inclination angle condition enables the influence of a large landing inclination angle on the lateral guidance instructions to be reduced and the strike precision to be improved effectively, reasonably distributes and plans the lateral guidance instructions, avoids the larger tail-segment guidance amount, solves the lateral guidance instruction calculation problem of an aircraft on the large landing inclination angle condition, and satisfies the demands at the aspects, such as the large landing inclination angle condition, the lateral guidance precision, etc.

The invention discloses a vector number-variable direct power control method for a three-phase power converter. The method comprises the following steps: obtaining an improved vector table on the basis of an instantaneous power theory, namely, introducing one or two non-zero vectors or a zero vector in a control period at the same time; selecting two or three optimal voltage vectors which can reduce the errors between active power as well as reactive power and reference values at the same time from the improved vector table according to a sector in which a power grid voltage position angle is positioned, actual values of the active power and the reactive power, and the reference values of the active power and the reactive power. The method disclosed by the invention is easy to control, simple in algorithm and easy to implement; the fluctuation of the active power and current harmonics can be reduced obviously; the control quality of a system is guaranteed.

The invention discloses a distributed PID (Proportion Integration Differentiation) predictive function control method for the furnace box temperature of a waste plastic cracking furnace. The distributed PID predictive function control method comprises the following steps: firstly, establishing a step response model vector of a process object by acquiring real-time step response data of a control system; secondly, converting an online optimization problem of a large-scale system into an optimization solving problem of each small-scale subsystem, and considering each subsystem under a network environment as an intelligent agent, wherein all the intelligent agents realize information sharing by network communication; thirdly, improving a performance index of a DPFC (Distributed Predictive Function Control) method by introducing a PID operator, and designing PID predictive function controllers of all the intelligent agents; fourthly, enabling an instant control law obtained at a current moment to act on each intelligent agent, and rolling a time domain to the next moment; finally, finishing an optimization task of the whole large-scale system by sequential iterative cycle. According to the distributed PID predictive function control method disclosed by the invention, the defects of a traditional DPFC method are effectively made up, and the degree of freedom of control parameter design is improved.

The invention discloses a connection structure and an installation method of a box-shaped steel column and an unequal-height I-shaped steel beam. The connection structure comprises the box-shaped steel column, a high-side I-shaped steel, a low-side I-shaped steel, a horizontal top plate, a triangular plate, a second beam end plate, a second U-shaped steel, a angle steel, a first bolt, a second bolt, a first beam end plate and a first U-shaped steel. The connection joint of the box-shaped steel column and the unequal-height I-shaped steel beam can not only give full play to the advantages of the combined structure but also meet the requirements of aesthetics and functions, and can also improve the construction speed; moreover, the joint has larger ductility and deformation capacity, the construction quality and safety are guaranteed, the connection joint of the box-shaped steel column and the unequal-height I-shaped steel beam can be widely applied to various building structures, and the development of the building industry is greatly promoted.

The invention relates to a method and device for high-precision closed-loop blood constituent real-time separation blood sampling. The method includes the steps that the blood drawn from the body of a blood donor is separated in real time, blood constituents which should be infused back are infused back to the body of the blood donor in a field, the required blood constituents are stored in a corresponding required blood constituent container, indexes of the blood constituents in the body of the blood donor are detected in real time in a non-invasive mode in the blood drawing process, blood sampling is stopped when the indexes of the blood constituents in the body of the blood donor are reduced below safety threshold values, the separated blood constituents are detected in real time so that the operation speed of a blood centrifugal machine can be controlled according to a detection result, and the optimal separation effect is achieved. The device for high-precision closed-loop blood constituent real-time separation blood sampling comprises a blood drawing unit, a blood separation unit, a storage unit, a back infusion unit, a constituent quality detection unit, a fluid infusion unit, a real-time physiological monitoring unit and a central processing unit. According to the method and device, on the premise that safety is guaranteed, the maximum blood donation volume can be accurately determined according to physical indexes of the blood donor, and the blood separation quality can be improved and guaranteed.

The invention relates to a coordination control method for an off-grid phosgene combined heat and power generation integrated energy system. An integrated energy system model with subsystems representing overall dynamic characteristics of the system is constructed through overall analysis of the system and serves a distributed model prediction control algorithm. A single-layer control structure based on direct energy balance is provided according to a user energy demand analysis system control target, and thermoelectric energy supply and demand real-time balance can be achieved without an upper layer optimization scheduling instruction. Furthermore, according to the characteristics of a coordination control object, cooperative distributed model predictive control is adopted to achieved thermoelectric coordination control. Through simulation verification, the control strategy provided by the invention can realize real-time balance of thermoelectric energy supply and demand under various disturbances, and the calculation burden is significantly reduced compared with a centralized model prediction control algorithm.

The invention relates to a material flow system, particularly, relates to the material flow system feeding crude tobaccos according to ratio in crude tobacco production. The material flow system comprises a material flow central control system 4, a crude tobacco boxing area 1, a high-rack warehouse storage area 2 and a box turnover feeding area 3, wherein, the crude tobacco boxing area comprises a boxing area 12 and an empty tank buffer area 13; the high-rack warehouse storage area comprises a warehouse-out platform 21 and a storage rack 22; and the box turnover feeding area comprises a material pouring buffering station 32 and a material feeding station 31. The material flow system converts extensive production of crude tobaccos to fine production, and achieves standardized operation of material flow and automatization management; compared with the traditional operation model, the material flow system can reduce the labor intensity, can improve the tobacco formula accuracy, and can ensure chemical composition constancy of finished tobaccos; and the material flow system can change the production organization, and can change the feeding production organized artificially into the grouping feeding production adopting automatic computer formulating.