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328results about How to "Realize dynamic control" patented technology

System and method of dynamic management for construction quality of asphalt concrete pavement

The invention discloses a system and a method of dynamic management for construction quality of an asphalt concrete pavement. The system gathers a plurality of subsystems of the dynamic management for the construction quality of the asphalt concrete pavement and a remote quality monitoring and controlling system, wherein the subsystems are composed of a production mix proportion monitoring subsystem, a discharging temperature monitoring subsystem, a construction environment monitoring subsystem, a pave data monitoring subsystem, and a rolling data monitoring subsystem. The technical scheme is that the sensing technology based on the architecture of the Internet of Things and the transmission technology base on 2.5 G and 3G are fully utilized to report data information of a manufacturing process, a construction process, and the like of asphalt mixture to a remote server through a communicating module, so as to dynamically and truthfully reflect the construction quality condition. The idea of the system and the method is to track and observe project processes, and compare the observation result with a planned value, and once a deviation is found, the rectification is performed for prevention.
Owner:ZHONGSHAN TOPWARE ELECTRONICS TECH

Online control method for tobacco processing process parameters by using computer programs

InactiveCN102141804ARealize dynamic controlReal-time automatic correction of control system setting parametersTotal factory controlProgramme total factory controlProcess equipmentProcedural approach
The invention discloses an online control method for tobacco processing process parameters by using computer programs, which comprises the following steps of: acquiring temperature and humidity parameter values of a processed material, namely tobacco leaves or tobacco shreds through a temperature sensor and a moisture meter, acquiring running parameters of the real-time online acquisition processing process and the temperature or the humidity of the tobacco leaves or the tobacco shreds, comparing the running parameters of the real-time online acquisition processing process equipment and the temperature and humidity parameter values of the tobacco leaves or the tobacco shreds with the acquired parameter values of the temperature or the humidity of the tobacco leaves or the tobacco shreds before processing, transmitting modification instructions of control parameter setting provided by a data monitoring system to a programmable logic controller (PLC), and timely adjusting online control parameters and output instruction signals of the equipment to realize online real-time adjustment of the tobacco processing process parameters. Therefore, dynamic control of raw material change in the tobacco online processing process is realized. The method is suitable for controlling tobacco shredding, threshing and re-drying, CO2 expanded tobacco shred lines, rolling and packing.
Owner:QINHUANGDAO TOBACCO MACHINERY

Strip steel tension dynamic control method based on loop quantity deviation and control system using strip steel tension dynamic control method

The invention discloses a strip steel tension dynamic control method based on loop quantity deviation and a control system using the strip steel tension dynamic control method, and relates to a control device or method which is specially applicable to a metal rolling mill or products machined by the metal rolling mill, in particular to dynamic control of hot-rolled strip steel tension through a loop. The control system comprises a main transmission speed control module, a tension adjusting module and a tension set value correction module, a strip steel tension set value is corrected by computing loop quantity deviation between a target loop quantity and an actual loop quantity in real time and according to the loop quantity deviation, the strip steel tension set value is increased if the actual loop quantity is higher than the target loop quantity, the strip steel tension set value is decreased if the actual loop quantity is lower than the target loop quantity, tension moment is computed according to the corrected strip steel tension set value and transmitted to a torque adjuster of an electric loop, the strip steel tension is dynamically controlled, and the problem of internal deviation of strip steel in a frame or narrow reduction of the strip steel due to easy deviation of the actual loop quantity of the loop caused by fluctuation of technological parameters in constant tension control of an existing strip steel tension control system is solved.
Owner:BAOSHAN IRON & STEEL CO LTD

Performance prediction model based dynamic control method for mechanical property of hot strip

The invention belongs to the process control field of a hot rolling slab, and relates to a dynamic control method for the mechanical property of a hot strip. The performance prediction model based dynamic control method for the mechanical property of the hot strip comprises the following steps that: before the rolling of the strip, the chemical composition and the preset processing parameters and specifications for the rolling is firstly taken, then the content of separated alloy compounds is calculated according to a preset coiling temperature in the processing parameters for the rolling, then all the data is carried into the performance prediction model for the mechanical property of the hot strip, the mechanical property of the rolled strip is predicted by using the model, the processing parameters for the rolling are adjusted so that the predicted value of the mechanical property of the strip satisfies the restriction of the target value of the mechanical property, then the rolling is performed according to the adjusted processing parameters for the rolling. The method utilizes the performance prediction model for the mechanical property to dynamically adjust the processing parameters for the rolling of the strip, realizes the dynamic control for the mechanical property of the strip, and improves the qualified rate of hot rolling products and the control precision of the mechanical property.
Owner:BAOSHAN IRON & STEEL CO LTD

Dynamic real-time monitoring method for concrete bridge prestressed tendon tensioning force and special prestress construction system

The invention belongs to bridge construction, and particularly relates to dynamic real-time monitoring method for concrete bridge prestressed tendon tensioning force and a special prestress construction system. The dynamic real-time monitoring method for the concrete bridge prestressed tendon tensioning force includes the steps of initializing and real-time dynamic control loading. The prestress construction system comprises at least one tensioning device, and each tensioning device comprises a hydraulic station, a reversing valve bank, a jack, an A/D data collecting module, a PLC, a central processing unit, a human-computer interface, a direct force measuring device, a hydraulic force measuring device, a prestressed tendon elongation measuring device, a friction resistance test device and a security alarm device. The double-control requirement, difficult to met in the prior art, for taking stress control as the principle thing and an elongation value as a checking item is met, the dynamic real-time monitoring method has the advantages that construction quality and safety can be effectively ensured, and problems found in the tensioning process can be solved in time.
Owner:CHINA RAILWAYS CORPORATION +3

Flow control method and system, and centralized controller

The embodiment of the invention provides a flow control method and system, and a centralized controller, and relates to the technical field of communication. The problem that flow is only forwarded according to an IP path in a flow dredging process, resulting in that the flow transmission effect cannot meet the actual demands of a user to the business quality in the prior art is solved. The method comprises the following steps: a network edge device sends network monitoring information of a user terminal to the centralized controller, wherein the network monitoring information comprises a flow type and an occupied bandwidth; a network forwarding device sends link delay information to the centralized controller, wherein the link delay information comprises a residual bandwidth of the link and a link transmission delay; the centralized controller determines a target forwarding path according to the network monitoring information sent by the network edge device, the link delay information sent by the network forwarding device and business demand information, and releases the target forwarding path and a flow control strategy to a network device. The flow control method and system, and the centralized controller provided by the invention are applied to flow control.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Large-volume concrete multi-field real-time online collaborative intelligent simulation method and large-volume concrete multi-field real-time online collaborative intelligent simulation system

The invention discloses a large-volume concrete multi-field real-time online collaborative intelligent simulation method and a large-volume concrete multi-field real-time online collaborative intelligent simulation system. The method comprises the following steps: step S1, a sensing step of model establishment and real sensing input; S2, an analysis step of initializing parameters to be determinedand performing simulation calculation analysis; S3, an evaluation step of evaluating the truth degree of the simulation result; S4, a feedback step of judging simulation results and making process optimization adjustmentst; S5, a control step of performing closed-loop intelligent control; and S6, a learning step of learning the above steps, and starting a new loop. Through dynamic circulation ofthe steps, the frequency and precision of traditional simulation analysis and the application efficiency of simulation results are improved. Real perception, intelligent analysis and dynamic control of simulation objects are achieved, and the method can be applied to intelligent construction, full life cycle simulation analysis and the like of large-scale civil engineering and water conservancy structure engineering.
Owner:TSINGHUA UNIV +1

Community fire-fighting dynamic management and control system and method

This application relates to a community fire-fighting dynamic management and control system, which includes a remote server, a mobile terminal installed with a community fire-fighting dynamic management and control APP, an information management module, a daily supervision inspection module, a fire hazard inspection module, a fire protection rectification module, an information push module, and a joint control alarm device. The mobile terminal is in wireless communication connection with the joint control alarm device and the remote server via the community fire-fighting dynamic control APP respectively. The joint control alarm device includes a wireless Internet of things gateway, an image acquisition device, a fire-fighting alarm sensor, an alarm button and an audible and visual alarm. This application is intended for densely populated places with community nature such as nine types of small places. Through the dynamic management and control system of the present application, the fire prevention situation on the scene of occupants can be grasped in time so as to realize routine prevention and control of community fire prevention and immediate linkage in case of fire abnormality, thereby greatly improving the working efficiency of the police and effectively reducing the probability of a fire.
Owner:济南市公安局市中区分局

Flexible base layer asphalt pavement splicing and widening construction method

The invention relates to a flexible base layer asphalt pavement splicing and widening construction method. The construction method is characterized in that old road pavement structure layers are milled and planed, and then connecting steps are arranged at the interfaces of the old road structure layers; then an old road splicing widening connecting joint and the road bed outer edge of a widening pavement are each provided with a road bed solidifying beam, and a steel bar mesh grid is laid on the top surface of each road bed solidifying beam; materials generated after the upper face layer of an old pavement structure and the other structure layers of the old pavement structure are milled are used for new road base layers; in construction, a glass fiber geogrid is laid on the top surface of a two-ash gravel recycling layer, a connecting grid and joint filling slurry are arranged at the connecting joint of a new pavement and an old pavement, and a crack partition plate is laid at a pavement splicing widening connecting joint on the top surface of a lower face layer; and finally, paving construction of pavement upper face layers of the new pavement and the old pavement are conducted simultaneously. The old road building materials can be recycled, the integrality of an asphalt pavement splicing widening structure can be improved, and the solidifying cost of the pavements in the later period can further be reduced.
Owner:SICHUAN JIAOTOU CONSTR ENG CO LTD

Pollution source online monitoring system and detection equipment operation and maintenance condition control method thereof

InactiveCN107450427ARealize dynamic controlRealize operation and maintenance managementProgramme controlComputer controlWater qualityData acquisition
The invention discloses a pollution source online monitoring system and a detection equipment operation and maintenance condition control method thereof. The method includes the following steps: a data acquisition instrument transmits a monitoring result to a server of an operation and maintenance condition control system through a wireless network; the relationship between the present situation of water quality and the allowable amount of pollutant discharged for enterprises is established in the operation and maintenance condition control system, and when the amount of major pollutants discharged is close to the threshold, the operation and maintenance condition control system in the server outputs a fixed pollution source discharge limit instruction according to the situation of water quality, and sends a signal to a pollutant discharge control valve through the wireless network to control on/off of the pollutant discharge control valve; and the operation and maintenance condition control system receives and displays equipment parameters and status information uploaded by the data acquisition instrument in real time, saves historical data, judges parameters and status information reported by each site, and gives an alarm immediately once abnormality is found. The total amount of major water pollutants of fixed pollution sources can be controlled dynamically based on the quality of water environment, and a necessary support is provided for fine management of the water environment.
Owner:南通汇聚软件科技有限公司

System and method for dynamic cross-domain access control based on trusted network connection

ActiveCN104618395AGuaranteed secure and trusted accessRealize dynamic controlTransmissionNetwork connectionTrust level
The invention discloses a system for dynamic cross-domain access control based on trusted network connection. The system comprises a trusted network access requester, a network access decision-maker and a network access controller, wherein the network access decision-maker moves the requester into different safety trusted domains according to the state of the network access requester, so as to achieve dynamic cross-domain access control. The invention further discloses a method for dynamic cross-domain access control based on trusted network connection, and according to the method, platform identity authentication and integrity measurement are carried out by using a domestic TCM chip to rank the network according to safety trusted levels, and the access of the network by a terminal is limited according to the terminal identity authentication and integrity measurement results. According to the invention, dynamic cross-domain access control is set up on the basis of trusted network connection, and the terminal is put in the network domains of different safety levels in a dynamic manner according to the safety trusted status of the terminal in time, so that the safe and trusted access of the network is guaranteed.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Nano-level particulate matter supersaturated growth device and control method

The invention relates to a nano-level particulate matter supersaturated growth device and a control method. The device comprises a particulate matter sample gas channel, a sheath gas channel, saturated water vapor channels, a deionized water channel, a gas flow proportion control device and a temperature gradient control device. According to the nano-level particulate matter supersaturated growth device and the control method, based on a water vapor coagulation theory, sample gas which is wrapped with the clean sheath gas and carries atmospheric particulate matters passes through the saturated water vapor channels; a semiconductor refrigerator and a flexible heater are used for controlling the temperature of the two stages of saturated water vapor channels, so as to generate a temperature gradient; and by the use of the characteristic that the water vapor dispersion rate is higher than the gas heat transfer rate, water vapors around particulate matters are oversaturated, so that the water vapors can be condensed on the surfaces of the particulate matters to promote increase of the particle size of the particulate matters. By control of the flow proportion of the sample gas and the sheath gas, or control of a temperature difference between the two stages of the saturated water vapor channel, the degree of supersaturation of the water vapors is adjusted, and dynamic control of the particle size of the particulate matters subjected to supersaturated growth is realized.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Post-grouting gravel pile with sand wall wing plates and construction method

InactiveCN103061328AUniform consolidationRealize three-dimensional drainageBulkheads/pilesSoil preservationReinforced concreteWhole body
The invention relates to a post-grouting gravel pile with sand wall wing plates. The post-grouting gravel pile with the sand wall wing plates is characterized by mainly comprising a grouting gravel pile, a plurality of sets of sand wall wing plates and precast reinforced concrete pile tips, wherein the sand wall wing plates are uniformly distributed along the ring direction of the grouting gravel pile and are connected with the grouting gravel pile to form a whole body, the top part of a pile body extends into a sound cushion layer, the precast reinforced concrete pile tips comprise a gravel pile tip and a sand wall pile tip and are respectively arranged at the bottoms of the gravel pile and a sand wall, a grouting pipe is preset in the middle of the grouting gravel pile body, and the bottom of the grouting pipe is connected with the precast pile tips. With the adoption of the post-grouting gravel pile, the performance of water drainage of a granular material during a prepressing period can be exerted, and the grout can also be grouted into the pile body by a grouting pipe according to the sedimentation condition to form a rigid composite pile type, thus increasing the effective reinforcing depth of a gravel pile foundation and realizing effective unification of a drainage consolidation method and a composite foundation method.
Owner:FANGTAI CONSTR GRP +1

Hot-rolled flying shear head and tail initial shearing position dynamic control method

The invention relates to control over a steel billet flying shear of a hot rolling machine, in particular to an initial shearing position dynamic control method applicable to a hot rolling machine flying shear. The method comprises the following steps of determining a position tracking detection range; determining dynamic detection points; calculating the distance from each dynamic detection point to a flying shear start point; determining the width of a tracking travel window; determining the practical running position of a strip steel; determining the calculated shearing length of the strip steel; comparing the calculated shearing length of the strip steel with a strip steel shearing length set value; and starting the flying shear to shear the strip steel. The detection areas of the head and tail positions of the strip steel are controlled through a finish rolling inlet of a hot continuous rolling production line; through combination with arrangement of the strip steel head and tail position tracking travel window and correction of the basic displacement of the strip steel, position tracking integrated initial points are switched dynamically, and dynamic control over strip steel initial shearing position control points is realized. Position tracking data are more aligned with the requirement for the practical site location precision.
Owner:BAOSHAN IRON & STEEL CO LTD
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