102results about How to "Clear control logic" patented technology

The invention relates to a self-adaptive control system for traffic intersection signal lamps. The control system comprises multiple cameras, multiple signal lamp controllers and a far-end monitoring platform. The cameras are in one-to-one correspondence with the signal lamp controllers. Each camera is correspondingly connected with one signal lamp controller and used for shooting the intersection where the signal lamp controlled by the corresponding signal lamp controller is located and obtaining intersection images. The signal lamp controllers conduct compression encoding on the intersection images, and package intersection image coded data into a UDP packet so as to output intersection image network data. The far-end monitoring platform is connected with the multiple signal lamp controllers through a 4G network so as to obtain the image network data of multiple intersections and conduct self-adaptive control over the multiple signal lamps controlled by the signal lamp controllers respectively on the basis of the image network data of the multiple intersections. The self-adaptive control system can determine the lasting time of traffic lights of the signal lamps at the multiple intersections in a self-adaptive mode according to specific traffic conditions of the multiple intersections on the same road section, thereby achieving reasonable dispatching of traffic flow.

The invention discloses a control method for an air assisting type gas drive SCR system. The air assisting type gas drive SCR system comprises an initial state, a heating state, a pressure building state, an injection state, a pressure releasing state and a purging state. In the injection state of the system, a urea metering valve is used for conducting accurate control over the urea solution flow, vehicle-mounted compressed air is used for pressurizing the urea solution in a urea tank, and the pressurized urea solution is metered through the metering valve and then injected into a mixing cavity; and then, the other path of compressed air of the mixing cavity conveys the metered urea solution to a mechanical urea nozzle, the urea solution enters an exhaust pipe and is subjected to the chemical reaction with NOx in engine exhaust gas in a catalytic converter, and the purpose of exhaust gas purifying is achieved.

The invention relates to a stable sleeve-dropping method for a moveable sleeve of a hot milling machine and belongs to the technical field of steel rolling. According to the method, a sleeve-dropping controller controls a sleeve-dropping process of a rear moveable sleeve according to the following steps: tracking the position of a strip steel tail; confirming a sleeve-dropping position; establishing a sleeve-dropping angle control function; and lastly, after detecting and confirming that the strip steel tail reaches the confirmed sleeve-dropping position, starting a moveable sleeve rod and simultaneously controlling a sleeve-dropping angle of the moveable sleeve rod according to the sleeve-dropping angle control function till the moveable sleeve drops to the position as high as a rolling level. According to the method, by organically considering a frame driving transmission speed together with the moveable sleeve motion control, in the process of slowly digesting the sleeve quantity, a moveable sleeve roller keeps a tensile force on the strip steel till the moveable sleeve completely drops off, and the drifting phenomenon in a throwing process is prevented while a hollow sleeve isprevented from being formed, thereby achieving the purpose of stably dropping the sleeve.

The invention provides a whole vehicle mode switching control method and system for a hybrid electric vehicle. The method includes the following steps that when the actual mode of the whole vehicle is a pure electric mode, it is detected that the needed torque of a driver is larger than a switching calibration value of a pure electric-series mode, and the expected mode of the whole vehicle is changed into a series mode; a vehicle starting and power generating integrated machine is controlled to start an engine, and at this moment, the actual mode of the whole vehicle is still the pure electric mode; and when it is detected that the engine is completely started, the actual mode of the whole vehicle is switched into the series mode from the pure electric mode. By the adoption of the method and system, the technical problems that in an existing whole vehicle control mode switching method, many whole vehicle control modes exist, and mode switching conditions are complex are solved; and on the basis that control logic is simple and clear, various modes of the whole vehicle can be reasonably and smoothly switched in time, and electric energy and fuel energy are reasonably distributed, so that energy consumption is reduced significantly, and meanwhile the good starting and stopping performance and the driving performance are guaranteed.

The invention discloses a permanent magnet synchronous range extension system all-working-condition control method. Compared with starting conducted by a small start motor carried by an engine, starting conducted by a permanent magnet synchronous motor has the beneficial effects that the calibrated rotation speed of ignition oil injection of the engine is increased, and the situation that oil consumption emission is severe in the engine low-rotation-speed starting process is avoided. When a range extender enters in a first stage of the starting working condition, the actual torque of the permanent magnet synchronous motor responds to the target torque and is monotonically decreased to 0 Nm along with the increase of the rotation speed, the mode of the motor is switched into a power generation mode, and the actual torque of the motor is used for balancing the resistance torque of the engine in the process. Due to the fact that the target torque and the actual torque of the motor are reduced to 0 before the combustion torque of the engine is generated, and the control mode of the motor is switched to the power generation mode from an electric mode, so that after the engine starts generating power, the actual torque of the motor serves as the load of the engine to be gradually increased, the rotation speed is kept stable, and therefore, the smooth switchover of starting to an idlespeed working condition can be guaranteed when the output torque of the engine is suddenly increased.

The invention provides an active control method for burning instability of a combustion gas turbine combustor. The method comprises the steps that an end cover or the wall surface of a flame tube of the combustion gas turbine combustor is provided with a dynamic pressure sensor; dynamic pressure original signals of the interior of the combustor are collected by the dynamic pressure sensor and sent to a signal processing unit; de-noising processing is conducted on the dynamic pressure original signals through a preprocessor, Fourier series expansion is conducted on the processed dynamic pressure signals through the signal processing unit, and superposed signals of direct-current signals and harmonic signals with different frequency components are obtained; harmonic signal components with the amplitude exceeding a set amplitude threshold valve in the harmonic signals are kept, and frequency, the amplitude and phase information of the kept harmonic signals are sent to a controller; a controller drives a rapid response valve according to input information to input common-frequency stimulation with a 180-degree phase difference with the corresponding frequency harmonic signals for fuel flow, so that high-amplitude pressure pulsation in the combustor is restrained, and therefore active control over burning instability is achieved.

The invention relates to a circuit with a wide input voltage range, a high-frequency switching power supply and a control method. The circuit comprises an alternating current input and rectification circuit, a PFC (Power Factor Correction) inductance circuit, a soft-start circuit, a booster circuit, a follow current circuit and a control circuit, wherein the alternating current input and rectification circuit is used for connecting a three-phase alternating current input voltage, and rectifying three-phase alternating current input voltage into a pulsating direct current voltage; the PFC inductance circuit is connected with the alternating current input and rectification circuit, and used for regulating the input power factor of the high-frequency switching power supply; the soft-start circuit is connected with the PFC inductance circuit; the boost circuit is connected with the soft-start circuit, and used for generating an output setting voltage; the follow current circuit is connected with the soft-start circuit; and the control circuit is connected with the PFC inductance circuit, the soft-start circuit and the booster circuit respectively. Through adoption of the circuit, the problem concerned with how to realize a high-frequency switching power supply with a wide input voltage range is solved effectively, and the wide range input characteristic of the high frequency switching power supply is realized. The circuit is simple in structure, clear in control logic, and safe and reliable.

The invention discloses an aluminum profile automatic stacking system and a control method thereof. The system comprises a conveyer belt for conveying aluminum profiles, an industrial camera for obtaining the cross-section images of the aluminum profiles, an image processor, a first guide rail, a first driving motor, a portal frame and stacking mechanical arms. The method mainly comprises the following steps that the cross-section images of workpieces are captured through the industrial camera, and data are transferred to the image processor; the stacking mechanical arms are started to snatch up the workpieces; the portal frame moves to a clamp on a next station; rotation angles are calculated by the image processor through the algorithm of scale-invariant feature transform, and the stored angles of the workpieces are adjusted according to processing results; the workpieces move leftwards for a section of distance, and the workpieces are laid down and released by the left side stacking mechanical arm; the workpieces are rightwards dragged out for a section of distance and then laid down by the right side stacking mechanical arm; and the workpieces are leftwards pushed by the right side stacking mechanical arm to enable the workpieces to be reset and released. The aluminum profile automatic stacking system and the control method thereof have the advantages that the structure and control principle are simple, implementation is convenient, manual intervention is little, and the automation degree is high.

The invention discloses a flying wing unmanned aerial vehicle large overload steady disk maneuvering control method. The method comprises a steady disk maneuvering control logic, an engine surface speed closed-loop control mode, a height keeping control mode and a roll angle control mode. The method is applied to a flying wing layout unmanned aerial vehicle and provides an automatic control methodfor each control channel in a stable circling maneuvering process. According to the method, a gradient of the unmanned aerial vehicle can be established by calling the roll angle control mode, fixed-height flight is realized by calling the height keeping control mode, and fixed-speed flight is realized by calling the engine surface speed closed-loop control mode so that the stable circling maneuvering action of the unmanned aerial vehicle is completed. By reasonably and automatically controlling the engine and a control surface, stable circling maneuvering flight of the flying wing layout unmanned aerial vehicle can be achieved, and a flight direction of the unmanned aerial vehicle can be rapidly changed.

The invention relates to a rotating drill rig automatic drilling self-locking device, drilling control system and control method. The rotating drill rig automatic drilling self-locking device includesa handle, a pressure plate, a power head motor, a main valve, a self-locking pilot valve, a ring self-locking electromagnet, a pressing solenoid valve, a main pump, an auxiliary valve, a floating solenoid valve, a winch motor and a pressing oil cylinder; and the drilling self-locking function of a power head can be achieved, the pressing linkage can be controlled through the system, the intelligent operation of automatic drilling can be realized, the fatigue intensity of operators can be lowered, and construction efficiency is improved.

The invention discloses an overspeed protection and flow control device for a pumped storage power station, and belongs to the technical field of pumped storage. The overspeed protection and flow control device for the pumped storage power station comprises a first cartridge inserted valve, a second cartridge inserted valve, a first segmentation closing cartridge inserted valve and a second segmentation closing cartridge inserted valve. The overspeed protection and flow control device for the pumped storage power station is characterized in that the overspeed protection and flow control devicefor the pumped storage power station further comprises an oil return tank, a pilot-operated type electro-hydraulic reversing valve, a first segmentation closing pilot-operated electromagnetic valve,a second segmentation closing pilot-operated electromagnetic valve, a first accident cartridge inserted valve and a second accident cartridge inserted valve, the first accident cartridge inserted valve and the second accident cartridge inserted valve are correspondingly connected to a servomotor closing cavity, the second accident cartridge inserted valve is connected with the oil return tank, andthe pilot-operated type electro-hydraulic reversing valve is correspondingly connected with control cavities of the first accident cartridge inserted valve, the second accident cartridge inserted valve, the first cartridge inserted valve and the second cartridge inserted valve. The accident cartridge inserted valves, the segmentation closing cartridge inserted valves and the second segmentation closing pilot-operated electromagnetic valves are highly integrated into a whole, the connection of oil pipelines is reduced, the disadvantage of many leakage points is avoided, and the reliability andsafety of unit operation are improved.

This invention discloses a method generated by a motion vector prediction in a video image and a device. A master module looks up the list based on the current macroblock to acquire relates integral control words, fetches the corresponding sub-block control words, carries out null domain preprocess based on the content of the control words to device the predicted MV number of the current block or generates MV adopting the mode of storing copy, if vector offset exists, then summing operation is done. If the current sub-block is the last of the macroblock, then the macroblock MV generation is ended, if not, the next sub-block is re-fetched.

The invention provides a rail transit-based control method and apparatus. When an event occurring in a rail transit running process is detected, a message corresponding to the event is obtained; according to an object of the event, a custom state table is queried to obtain a standard state table corresponding to the object; according to a source mode in which the object is currently, the standardstate table is queried to obtain a core state table corresponding to the source mode; and finally according to the message, the core state table corresponding to the source mode is queried to obtain atarget mode and a control method corresponding to the message, thereby executing the control method to control the object to be in the target mode. The core state table is used for recording a corresponding relationship among the message, the target mode and the control method, and the custom state table is used for recording the standard state table corresponding to each mode of the object, so that the complex control method is subdivided, control logic is clearer, and the technical problems of complex control method and relatively high maintenance cost in the prior art are solved.

The invention discloses a fresh air multi-level treatment system for soil and phase change material coupling energy storage and an operation method. The system comprises a fresh air treatment module,a soil energy storage module, a phase change energy storage module and a heat pump module. The four modules are connected through control valve groups to form a complete system. The operation method for controlling the system comprises the step that since the system has four operation modes including the ventilation mode, the dehumidification mode, the dehumidification cooling mode and the heatingmode, the operation mode is judged according to outdoor air temperature and humidity parameters. According to the system, a dual-level phase-change technology is used for solving the problem of colddiffusion during phase-change cold storage, gradient utilization of energy is achieved to the greatest limit through a multi-level fresh air treatment mode so as to reduce the application amount of aphase change material, and the investment cost is reduced.

The invention discloses a control method for preventing furnace bottom hardening of an acid regeneration roasting furnace. The control method comprises the following steps that 1) when the fluidized bed acid regeneration roasting furnace conducts production, the furnace pressure, the furnace temperature, the acid gun flow, the opening amount of a gas valve and the operation frequency of a spiral conveyor are monitored in real time; 2) under the conditions that the furnace temperature is in an abnormal state and the waste acid flow is not changed, the gas amount is adjusted; 3) when the furnace temperature is in a normal state, the waste acid flow is increased to control the furnace temperature; 4) when the furnace pressure is increased, if the furnace pressure value is higher than a range value, a signal is given to the spiral conveyor, and the operation frequency of the spiral conveyor is increased to 85% or above from the normal operation frequency 65%; and 5) discharging is stopped after the furnace pressure value is carefully observed to be within the normal range, and the operation frequency of the spiral conveyor is recovered to 65%. According to the control method for preventing furnace bottom hardening of the acid regeneration roasting furnace, the production benefits are maximized, the situation that the production plan is affected after the fault occurs emergently, and consequently main line production is affected is avoided, and the working efficiency is improved.

The invention provides an emergency power supply management system based on an ant colony algorithm and an intelligent patrol method, the emergency power supply management system comprises a monitoring host and a plurality of lamp units, and each lamp unit comprises a power supply node; each power supply node comprises a lamp controller and a corresponding power supply information acquisition module; and the monitoring host determines a patrol path of the power supply node by combining an active patrol mode with a periodic timing patrol mode based on an ant colony algorithm, and analyzes the state of charge of the power supply node according to the power supply data information uploaded by the power supply node. According to the emergency power supply management system based on the ant colony algorithm and the intelligent patrol method, the node exception rate and the node space position are considered, the patrol path is dynamically planned, it is ensured that the exceptional node isfound at the highest speed, the response speed and the management level of the system are improved, and the intelligent degree of the system is further improved.

The invention discloses a high-frequency-response hydraulic servo tool bar system for boring and a machine tool with the same. The high-frequency-response hydraulic servo tool bar system solves the problem that in the prior art, piston special-shaped hole machining equipment is not suitable for high-frequency-response application occasions, and has the effects that the hydraulic servo tool bar system is added to serve as a third virtual shaft, a tool bar is controlled to move in the radial direction, and then the effect of non-circular hole machining is achieved. According to the technical scheme, the hydraulic servo tool bar system comprises an eccentric variable body and a hydraulic station, wherein the hydraulic station comprises a servo valve connected with the eccentric variable body,the servo valve is used for controlling hydraulic oil to obtain the pressure intensity which is in linear relation with a voltage signal according to an input voltage signal, the hydraulic oil acts on an oil cavity in the eccentric variable body, and the eccentric variable body realizes radial displacement compensation of a boring tool under the action of the hydraulic oil.

The invention discloses a protection automatic control device and method for a dam tension wire end point and a measuring point. The device comprises a direct drive protection plate, a follow-up protection plate, a thrust connecting rod, a control module and the like. T-shaped edges are arranged on the upper and lower edges of the direct drive protection plate, and the bottoms are connected through compression springs to form a nested structure; a square wire passing hole is formed in the middle of the direct drive protection plate, laser switch sensors are arranged around the direct drive protection plate, and T-shaped guide rails are arranged below and on the side faces of the direct drive protection plate and matched with guide grooves formed in the ends of the thrust connecting rods to achieve transmission. During working, displacement of the dam body causes the tension wire to trigger the laser switch, the control module controls the linear motor drive to directly drive the protection plate to move, the line body is automatically prevented from being in contact with the edge, the free state of the line body is kept, and meanwhile alarm work of the dam monitoring system is achieved under the limit displacement control logic. The device is high in working stability and simple and clear in control logic, and has good protection and monitoring effects on the tension wire system.

The invention discloses a screen projection display parameter setting method and device and a computer readable storage medium, and the method comprises the steps of detecting whether a record file is empty or not; if the extension display identification data is null, selecting one projection screen display parameter from the extension display identification data as a current setting parameter of the projection screen display; if the device name is not null, detecting whether the device name is matched in the record file, and if the device name is matched in the record file, detecting whether a screen projection display parameter corresponding to the device name is called in the record file; and if the projection screen display parameter is called, taking the projection screen display parameter as the setting parameter, and if the projection screen display parameter is not called, selecting one projection screen display parameter as the setting parameter. A humanized projection screen display parameter setting scheme is realized, so that the memory scheme of the projection screen display parameters is higher in implementability, better in accuracy and stability, clear in control logic and easy to realize, and the projection screen use experience of a user is greatly enhanced.

The invention discloses a method for controlling cold buckling of an ultra-deep-drawing wide plate, which comprises the following steps of: controlling six CQ-grade steel coils of which the width is greater than that of a target coil according to the annealing temperature and the annealing speed of the target coil, so that the roller shape and the temperature of a furnace roller are stable; two DQ-level steel coils with the width larger than that of a target coil are used, control is conducted according to the tension of the target coil, and the overall tension state is in a stable state; the temperatures of the CQ grade, the DQ grade and the target steel coil are set as follows: the temperature of an outlet of a slow cooling section is 630 DEG C, the temperature of an outlet of a rapid cooling section is 370 DEG C, and the aging section is naturally cooled; the CQ grade, the DQ grade and the target steel coil cooling speed are set as follows: the cooling speed of a slow cooling section is 11 DEG C/S, the cooling speed of a rapid cooling section is 28 DEG C/S, and natural cooling is performed in an aging section; speed setting: setting according to the length of each cooling section of different annealing furnaces; the tension is set as follows: the heating section is 4.5 KN, the slow cooling section is 6 KN, the rapid cooling section is 7 KN, and the aging section is 5.5 KN.