119results about How to "Realize joint control" patented technology

The invention discloses a periodic amplitude control-based phased-array antenna system. The periodic amplitude control-based phased-array antenna system comprises a plurality of phased-array antenna unit passages, a combiner, a power divider, a frequency converter unit and a medium frequency band pass filter unit, wherein each phased-array antenna unit passage comprises an antenna, a first radio frequency band pass filter, a duplexer, a variable gain amplifier unit, a second radio frequency band pass filter and an amplifier control unit; and the amplifier control unit periodically controls the gain of the variable gain amplifier unit. The invention also discloses a wave beam control method of the periodic amplitude control-based phased-array antenna system. By periodically controlling the amplitude of a transmitted / received radio frequency signal, combined control over the amplitude and the phase of the phased-array antenna system is realized, and directional diagram synthesis and adaptive wave beam formation of a phased-array antenna array can be realized without using a phase shift device; and the periodic amplitude control-based phased-array antenna system can be widely applied to systems requiring flexible wave beam control such as phased-array radar and electronic countermeasure.

The invention discloses an energy-saving control system and an energy-saving control method for an automobile crane. The energy-saving control method comprises the following steps of: providing the flow required by a hydraulic system of the automobile crane through a handle and detecting the load pressure of the hydraulic system through a pressure sensor; calculating or searching the minimum value of oil consumption in unit time of the engine under the current load within the set change range of the current rotating speed by utilizing an energy-saving algorithm module; and adjusting the engine to rotate at a rotating speed corresponding to the minimum value of the oil consumption in unit time, and adjusting a variable displacement pump of the hydraulic system to have the displacement matched with the rotating speed. The invention also discloses an automobile crane with the energy-saving control system. In the invention, the handle directly corresponds to the flow of the hydraulic system, and the joint control of the rotating speed of the engine and the displacement of the variable displacement pump is realized.

The invention relates to a vaporization bubble test apparatus with adjustable pressure and an adjustable temperature and belongs to the cavitation dynamics field. An upper portion of a test tank is provided with seven through holes. An infrared light transmission beam passes through one end of the through hole on a central axis and is put in the test tank and the other end is connected to a high speed heat imaging camera. Two electrodes pass through the through holes of two sides of the central axis and are suspended and fixed in the test tank. Pressure and temperature sensors pass through the through holes and are suspended and fixed in the test tank. A liquid conveying pipe valve is connected into the test tank through a pipeline. A gas interface valve is connected into the test tank through the pipeline. An electric heating pipe is suspended in the test tank. The test tank is put in a vacuum tank and is sealed through a flange plate. Side walls of the test tank and the vacuum tank are provided with visual observation windows. An axis of the high speed camera is superposed with an axis of the visual observation windows. The apparatus possesses good adjustability and is safe and reliable. And synchronization acquisition of a vaporization bubble form, a temperature field, pressure and temperature data of a liquid under different pressure and temperature conditions at a normal temperature and at a low temperature can be realized.

The invention provides an all-in-one computer television and a control method of the all-in-one computer television. The all-in-one computer television comprises a television controller and a computer module, wherein the television controller is connected to the computer module through an interface module, detects a state of the computer module according to a state signal transmitted by the interface module and sends a control signal to the computer module through the interface module according to the state of the computer module so as to control operation of the computer module. The computer module receives the control signal transmitted by the interface module and executes corresponding actions. A control mode of the all-in-one computer television is simple, and control of a television module to the computer module can be achieved through state signal detection of three control lines.

The invention relates to an angular displacement sensor, belonging to a sensor for measuring rotating angle. The angular displacement sensor solves the problem that the existing rotary potentiometer is hard to install when in angle measurement, and comprises a fixed component and a rotating component, wherein the fixed component includes an insulating base body and a conductive carbon film layer, and the circular-arc-shaped conductive carbon film layer provided with a nick is adhered to the surface of the ring-shaped insulating base body; the two circular-arc-shaped ends of the conductive carbon film layer are respectively provided with a positive electrode and a negative electrode; a signal output pole is arranged at the position corresponding to the circular-arc-shaped nick of the conductive carbon film layer on the insulating base body, and is welded with a V-shaped copper probe; the rotating component includes an insulating ring, a copper ring and an electric brush, wherein the copper ring is embedded and sheathed at the outer circumference of the insulating ring, and provided with the electric brush. The angular displacement sensor has simple and compact structure, can be directly sheathed on a rotating shaft, does not need an extra special sensor mounting box, can work in high pressure hydraulic oil, and is especially suitable for joint rotation angle measurement of an underwater robot, an underwater engineering machine and other underwater equipment.

The invention discloses an angular momentum unloading method for an orbit-changing process of an all-electric propulsion satellite. The method comprises the following steps: setting an unloading arc segment A and an unloading arc segment B before each orbit period starts; determining adjusting angles in thrust directions of electric thrusters by calculations; determining whether adjusting angles in the thrust directions of the electric thrusters of the unloading arc segment A exceed the critical value or not, and entering the unlading arc segment A if not; if so, adjusting angular momentum unloading amount of the unloading arc segment A again, then calculating adjusting angles in the thrust directions of the electric thrusters again, entering the unloading arc segment A, determining a newangular momentum unloading amount through new accumulation of wheel-angular momentum after the unloading arc segment A finishes unloading, calculating adjusting angles in thrust directions of new electric thrusters and entering the unloading arc segment B. The angular momentum unloading problem is resolved when the electric thrusters perform an orbit maneuvering control task during the orbit-changing process. Therefore, combined control over orbit maneuvering and angular momentum unloading is achieved by the all-electric propulsion satellite.

The invention provides a smart sofa based on the internet of things and a smart home control system. The smart sofa comprises a sofa body, a data processing module, a communication module, and a plurality of kinds of sensors and a posture adjustment module which are all installed on the sofa. The plurality of sensors are used for sensing multiple pieces of human body sign data, and sending the data to the data processing module in real time; the data processing module is used for processing the multiple pieces of human body sign data or instruction sent by users, and generating driving instructions according to the multiple pieces of human body sign data or instructions sent by users; the communication module is used for transmitting instructions sent by users to the data processing module, and sending the driving instructions generated by the data processing module to the posture adjustment module and various home devices; the posture adjustment module is used for completing sofa posture adjustment. The smart sofa has a high automation degree, realizes interaction with other home devices, and greatly improves user use experience.

The invention relates to a remote control switch for a lamp, and belongs to the technical fields of new energy and electronic communication. A pair of connecting lugs and a lug boss are arranged at one end of a base, and a blind hole is formed at the other end of the base. One end of a piezoelectric vibrator is fixed on the lug boss of the base by a pressure plate. A pair of pin shafts is arranged at one end in a shell, a connecting plate is arranged at the other end in the shell, and keys are arranged on an upper surface outside the shell. The pin shafts on the shell are hinged with the connecting lugs on the base. A circuit board is arranged on a support of the shell. An electric energy conversion and signal transmission circuit is arranged on the circuit board, and is connected with the piezoelectric vibrator through a first wire group, and is connected with the keys through a second wire group. A spring piece is fixed on the connecting plate of the shell through a pressure block, and a blind hole is formed in the pressure block. The two ends of a resetting spring are crimped in the blind holes in the base and the pressure plate respectively. The remote control switch has the advantages that the spring piece arranged on the end part of the shell is directly used for stirring the flexural piezoelectric vibrator, and another moving element is not required; and the remote control switch is simple in structure, high in reliability and low in cost.

The invention discloses an experimental system and method for turbine blade leading edge cooling test under a rotating condition. A whole blade leading edge cooling system is imitated, a real airflowimpact boundary condition is provided, and the comprehensive influence of the mixing of heating incoming flow at external relative speed and internal cooling air flow, the arrangement mode of air flowimpact channels, the arrangement of shower head air film cooling holes at the front edge target surface and the rotation of different areas (blade root, blade body and blade top) of the blade is considered. In the experiment process, temperature, pressure and flow signals are monitored, controlled and adjusted, so that the interior-air film coupling cooling performance of the rotary turbine bladeis accurately evaluated, and reliable reference is provided for design and application of an actual blade cooling structure.

The invention belongs to the technical field of tests of wind turbine generator systems, and discloses a multifunctional test system of a wind turbine generator system. The system comprises a generator set, a grid-tied converter and a feed switch cabinet which are sequentially in electric connection, comprises an industrial power grid, a high-voltage switch cabinet, a step-down transformer, a power receiving switch cabinet, a rectifier cabinet and a common direct current bus which are sequentially in electric connection, and further comprises a first inversion cabinet in electric connection with the common direct current bus, a second inversion cabinet in electric connection with the common direct current bus, a first double-shaft-extension dragging motor in electric connection with the first inversion cabinet, a second double-shaft-extension dragging motor in electric connection with the second inversion cabinet and a first coupler used for being selectively connected with a projecting shaft end of the first double-shaft-extension dragging motor and a projecting shaft end of the second double-shaft-extension dragging motor. The system has the advantages of being capable of meeting various test requirements of various common wind turbine generator system models and having high economic efficiency and flexibility.

The invention discloses an energy-saving control system for a screw type electric air compressor set. The energy-saving control system comprises a main control machine and multiple driven machines. The main control machine comprises a first screw electric air compressor, a frequency converter connected with the first screw electric air compressor, a first controller connected with the frequency converter and a first air pressure sensor, wherein the first air pressure sensor is connected with a high-pressure air conveying pipeline and used for transmitting detected pipeline air pressure data to the first controller. Each driven machine comprises a second screw electric air compressor, a power frequency controller connected with the second screw electric air compressor and a second air pressure sensor, wherein the second air pressure sensor is connected with the high-pressure air conveying pipeline and used for transmitting detected pipeline air pressure data to the power frequency controller. The power frequency controller is connected with the first controller. The first controller acquires the pressure values detected by the first air pressure sensor and the second air pressure sensor, and the frequency converter is controlled and the frequency of the motor and start and stop of the driven machines are controlled according to the set PID control. The energy-saving control system has the beneficial effects that energy saving is achieved, and the start is skipped to automatically when a failure happens.

The invention discloses a stereoscopic track changing type track robot system and method. The system comprises multiple sections of movable tracks arranged on different planes in a stereoscopic space,a robot capable of moving on the movable tracks, a stereoscopic track changing device and a control system. The movable tracks are arranged according to the positions where the robot needs to arrive.The stereoscopic track changing device comprises a robot transfer mechanism, and a transition track is arranged on the robot transfer mechanism. The control system controls the robot transfer mechanism to rise and fall, rotate and move in set directions, so that the transition track is in butt joint with the movable tracks on different planes and in different directions, and the running tracks ofthe robot are changed through the transition track. The robot can be transferred in the multiple horizontal and vertical planes in the space, the movable tracks only need to be arranged according tothe running positions of the robot, the arrangement cost is reduced, and space resources are saved.

The invention discloses a case handling control system based on artificial intelligence and a method thereof, comprising a case filing system, a positioning system, an intelligent interrogation console, an intelligent file control system and a command center, which are used by a case handler to interrogate a suspect and obtain an interrogation result and combine the interrogation result with the case filing system to form a file. The invention adopts a centralized case filing system, positioning system, intelligent interrogation console, Intelligent File Control System, a technical framework that integrates command centers, through business logic integrity and convergence innovation, Fully considering the complete process of case handling, from the case filing, personnel positioning and tracking, intelligent interrogation of suspects, intelligent file control to form a one-stop system control system, to achieve the joint control of all levels of public security law users through the command center of the case handling procedures, greatly improving the efficiency and intelligence of case handling; The system is rigorous in design, high in efficiency, high in intelligence, and high in safety performance, which is suitable for popularization and application.

The invention discloses a construction method and an air conditioner control method for a multi-load joint control strategy, and belongs to the technical field of multi-load joint control strategies. According to an existing control strategy, flexible loads cannot be effectively scheduled and accurately controlled. According to the construction method for a multi-scene multi-load joint control strategy provided by the invention, multi-load response potentials are evaluated, and a reasonable power utilization plan is made according to load characteristics and market response characteristics represented by an evaluation result; a multi-micro-load aggregation model in multiple scenes is further established, and multi-load active response and coordinated optimization are achieved; and the multi-micro-load aggregation model in multiple scenes is used as a part of a combined optimization model of multi-micro-load regional operation scheduling, and multi-scene multi-load joint control is realized. Therefore, hierarchical flexible optimization operation and efficient scheduling of user-side multi-micro-loads are realized, and the dynamic balance capability of a power grid is improved.

The invention discloses an intelligent standardized law enforcement and case-handling center management system, comprising a background management subsystem, a user management subsystem, a file management subsystem and a case handling area management subsystem, which are mutually connected with each other through an exchange and a command center for data interaction. The system adopts the technical framework integrating the intelligent interrogation control, the intelligent file control and the management in one, through business logic integrity and convergence innovation, fully considers thecomplete process of case handling, from the case filing, personnel positioning and tracking, intelligent interrogation of suspects to intelligent file control to form a one-stop system control system,to achieve the joint control of all levels of public security law users through the command center of the case handling procedures, thereby greatly improving the efficiency and intelligence of case handling. The system is rigorous in design, high in efficiency, high in intelligence, and high in safety performance, and is suitable for popularization and application.

The invention relates to the technical field of air conditioning, and specifically relates to a heat storage control method of an air conditioner. The invention aims at solving the problems of low control precision and poor user experience of the existing preheating scheme. The heat storage control method includes the the steps that when a predicted time point is reached, a probability score of starting a heating mode at the next predicted start moment is calculated on the basis of a pre-established scoring system; when the probability score is larger than a set threshold value, the predictedstart moment is corrected on the basis of the time correction parameter; the heat storage time is determined on the basis of the outdoor environment temperature; the heat storage start moment is calculated on the basis of the corrected predicted start moment and the heat storage time; when the heat storage start moment is reached, the heat storage frequency of a compressor is determined on the basis of the outdoor environment temperature; and the compressor is controlled to operate at the heat storage frequency, and the outdoor fan is controlled to operate. By means of the heat storage controlmethod, the service life of the compressor can be prolonged, the control precision of the heat storage process of the air conditioner can be substantially improved, and user experience can be improved.

The invention provides an intelligent equipment control method and device which are applied to a processor in an intelligent control system. The intelligent control system further comprises an information acquisition device and at least one elevator. By means of the method, joint control of an access control system and an elevator system can be achieved. According to the intelligent equipment control method, due to the fact that the user identity information of a target user is associated with the target floor information, the target floor information of the target user can be determined afterpassing the user identification verification, and the target floor information is sent to the elevator system; and when the elevator system determines that the target elevator meets the preset driving condition, the elevator system drives the target elevator to the target floor according to the target floor information, so that the frequency of the user for operating the elevator device again isreduced. Compared with the prior art, the operation process is simplified, so that the use experience and the use efficiency of the user on the intelligent control system are improved.

The invention provides an automobile tire central air inflation and deflation device for a hub reduction gear assembly, which consists of an air inflation electromagnetic air valve, an air deflation electromagnetic air valve, a control electromagnetic air valve, an air pressure sensor and a dual-channel rotary sealing air chamber which are arranged on an automobile chassis and an air control execution air valve arranged at the rotating position. By the automobile tire central air inflation and deflation device, the on-off of the air inflation electromagnetic air valve, the air deflation electromagnetic air valve and the air control execution air valve can be controlled directly by a cab electronic control unit to control the processes of air inflation and deflation of tires and the air pressure detection of the tires, and the pressure of the tires can be set and adjusted according to the ground condition during the running or stopping of automobiles.

The invention discloses a mobile shelter monitoring system and a battery energy storage system charge and discharge control method. The mobile shelter monitoring system is used for controlling an on-load tap switch of a line voltage regulator through monitoring a bus voltage at the output side, so as to change a no-load voltage ratio of an auto-transformer to realize line on-load automatic voltage regulation and improve a voltage of the tail end of a power distribution network. Meanwhile, the mobile shelter monitoring system is used for monitoring a battery energy storage state, controlling discharge when a battery energy storage system is in a peak load state and charge when the battery energy storage system is in a valley load state, and coordinating operation energy consumption of an energy storage bidirectional converter and the battery energy storage system, so that the safe, stable and reliable operation of the battery energy storage system is ensured on one hand, and the efficiency of the battery energy storage system is improved on the other hand. According to the monitoring system, joint control of the line voltage regulator and the battery energy storage system is realized, the advantage of the battery energy storage system is fully developed, the working range of the line voltage regulator is enlarged, and the problem of overlow voltage of the tail end of the power distribution network is effectively solved.

The invention provides a multi-dimensional imaging method and device based on a composite phase metasurface, wherein the method comprises the steps: scanning a unit structure based on the metasurface, and obtaining a scanning structure parameter; determining a transmission phase and a rotation angle of a phase corresponding to the unit structure according to the scanning structure parameter; and encoding the transmission phase and the rotation angle on the metasurface to obtain a multi-dimensional image. According to the invention, phase distribution of different mixed images is applied to polarized light, and spatial frequency multiplexing is combined, so that combined regulation and control of composite phases can be realized in time.

A spectrographic detector and method, and Raman amplifier feedback controller and method, said spectrographic detector used for detecting spectrographic with n wave length optical signal in transmission line, n is integer greater than 1, said detector containing at least one first splitter and one second splitter set in transmission line for splitting said optical signal, a filter with inclined insert loss spectrum, first power detector connected with said filter for detecting power of optical signal, second power detector connected with second splitter for detecting power of optical signal. Said invention can realize cooperative control.

The invention discloses a multi-fan array annual energy production improving method based on wake flow field optimization control. The multi-fan array annual energy production improving method comprises the following steps of calculating a wake flow radius of a section position where a wind measurement point of a second fan radar is located in a first fan wake flow region, judging the position ofthe wind measurement point of the second fan radar in the first fan wake flow region, and calculating compensation coefficients of the measured wind speeds of the left and right wind measuring pointsof the second fan radar and the compensated yaw error angle of the second fan; calculating yaw error angles of all fans of the wind field array after compensation; calculating the wake flow radiuses of the section positions of wind wheel planes of the fans in different upstream fan wake flow regions, calculating the average wind speed of the fans in the different upstream fan wake flow regions, and calculating the sum of power output of the fan array; and calculating the active yaw angle of each fan corresponding to the maximum sum of the fan array power in real time by using a genetic algorithm, and optimizing and controlling the yaw state of the fans. According to the multi-fan array annual energy production improving method, the optimal power of the whole wind power plant is taken as the target, and the power generation benefit of the wind power plant is effectively improved.

The invention discloses a multi-actuator cylinder cooperative control device and control method. By the aid of the method, a plurality of actuator cylinders can be controlled by a flight control unit and a remote control unit or an operating rod to collaboratively make telescopic movement, switching can be conducted conveniently between two control modes, each set of control loop has the two protecting modes of software limiting and hardware limiting, the actuator cylinders can be prevented from stretching beyond a limited movement range, and thus an actuator cannot be clamped; when a normal control mode loses efficacy, the device can be timely switched to be in an emergency control mode, an emergency loop is composed of an independent relay set, and thus normal movement of the actuator can be guaranteed when the normal control mode loses efficacy. By means of the multi-actuator cylinder cooperative control device and control method, the defects that a traditional single-actuator cylinder controller is large in size, manual operating rod signals and remote control unit signals are not compatible, and the control movements of multiple actuator cylinders are not consistent are overcome, the moving speed and the moving range of each actuator cylinder can be controlled through software, and the control precision and the flexibility of the control device are improved.

An intelligent control system for a four-column hydraulic machine tool comprises an industrial personal computer, a human-machine interaction system, a PLC control system, a hydraulic system and a data acquisition and detection system. The input end of the data acquisition and detection system receives output signals of the hydraulic system, an output port of the data acquisition and detection system is connected with an input port of the PLC control system, and an output port of the PLC control system communicates with the industrial personal computer and the human-machine interaction system bidirectionally through a 485 bus. Working pressure and various data of a hydraulic machine, the on-off state of an electromagnetic valve when the hydraulic machine acts and the positions of all moving parts of the hydraulic machine can be monitored in corresponding interfaces, setting can be achieved through a human-machine interface, and therefore intelligent control and real-time monitoring on the four-column hydraulic machine tool are achieved.

The invention relates to a control method and device for a multi-union-type cold and hot water unit and the multi-union-type cold and hot water unit. The method comprises the steps that operation parameters of an indoor unit are acquired; a target value of outdoor water temperature output is determined; the temperature changing amount of the outdoor unit is calculated, and the ratio of loads of the indoor unit and the outdoor unit is determined; and the target value is corrected according to the temperature changing amount and the ratio of the loads of the indoor unit and the outdoor unit. According to the technical scheme provided by the invention, the operation parameters of the indoor unit are acquired, and the target value of outdoor water temperature output is determined according tothe operation parameters; the target value is corrected according to the outdoor unit temperature changing amount and the ratio of the loads of the indoor unit and the outdoor unit, so that union control of the indoor unit and the outdoor unit is realized; the operation state of the indoor unit is considered, and the target value of the outdoor water temperature output is also taken into consideration; an optimum control state with comfort and energy-saving performance is reached; and the whole system is operated in a high-efficient and energy-saving manner.

The invention discloses a voice control method and device, a storage medium and a voice joint control system. The voice control method includes the steps of obtaining a voice instruction, recognizingone or more control intentions contained by the voice instruction, jointly controlling one or more voice devices to execute the voice instruction according to the control intentions. By means of the scheme, the problem that use is inconvenient since one device can only be controlled by one instruction can be solved, and the use convenience effect is improved.

The invention discloses an upper-layer motion state control method for a four-hub motor driven vehicle, realizes dynamic adjustment of a vehicle motion state reference value based on fuzzy control, obtains a comprehensive reference quantity by correcting a yaw velocity reference value, can effectively simplify the design of centroid slip angle and yaw velocity self-adaptive joint control, and themaneuverability and the stability of the vehicle under different attachment conditions can be comprehensively coordinated. The upper-layer motion controller based on the improved sliding mode controlmethod established in the method can effectively realize the combined control of motion state quantities such as longitudinal vehicle speed, yaw velocity and side slip angle, and is relatively small in buffeting and relatively high in response speed while ensuring the control precision. The adaptive capacity of motion control to external disturbance and system parameter change is improved to a certain extent, and a good tracking effect of the vehicle on each reference motion state is ensured. Therefore, the final torque distribution provided by the invention can ensure good operation stabilityof the vehicle under different attachment conditions.

The invention discloses an infrared visual emulation system and a radiation field joint adjusting and control method thereof, and the joint adjusting and control problem of an infrared digital scene and an infrared target simulatorissolved. According to the infrared visual emulation system, DMD control in the emulation system is synchronized with a drive circuit control imaging device and image frame between infrared digital scene units. Image radiant brightness of the infrared digital scene units and the blackbody light source temperature are adjusted to obtain joint adjusting and control ofthe emulation system. According to the radiation field joint adjusting and control method, on the basis of the emulation system, the radiant brightness of the infrared digital scene units and the blackbody light source temperature of the DMD infrared target simulator, and the spatial light modulator transmittance relationship are established item by item, an exit pupil radiant illuminance transfermode of the target simulator is established, the quantization range of the image radiant brightness and the range of the blackbody light source temperature are determined, a radiation regulation model of a whole link path of the system is established, a blackbody radiant brightness and temperature comparison table is manufactured and found out, regulation model parameters are determined, and radiation field joint adjusting and control is obtained. The infrared visual emulation system is used for infrared scene image emulation.