122results about How to "Simple and flexible control" patented technology

The invention discloses an intelligent integrate kitchen with an interaction function, which comprises a floor cabinet, a wall cupboard and a main control panel, wherein a hearth is arranged on the floor cabinet; an electronic gas stove is mounted on the hearth; cooking appliances are arranged at the upper end of the electronic gas stove; a smoke exhaust ventilator is mounted on the wall cupboard at the position over against the electronic gas stove; a main controller, a data memory, a main display screen and a first wireless transceiver are arranged on the main control panel; the electronic gas stove comprises a gas stove controller, an electronic igniter, an electronic regulating valve, a gas stove control button and a second wireless transceiver; and the smoke exhaust ventilator comprises an air blower, a ventilator controller and a third wireless transceiver. The intelligent integrate kitchen aims to realize the linkage between the electronic gas stove and the smoke exhaust ventilator through the main controller, and has the advantages that when using the electronic gas stove to cook food, the smoke exhaust ventilator is controlled by the main controller to carry out corresponding smoke exhaust work; and the guarantee of good cooking work environment is facilitated.

Detecting faults in driving circuits within a display device is disclosed. The display device has an array of pixels formed over a substrate in a display area, each pixel having a driving circuit and an associated communication circuit, the communication circuits together forming a multi-pixel serial shift register. The multi-pixel serial shift register is used to shift desired pixel luminance values from a display controller through the multi-pixel serial shift register to corresponding driving circuits for driving the pixels with driven electrical signals to emit light corresponding to the desired pixel luminance values, and sensing electrical signals corresponding to the driven electrical signals with a sensing circuit. Further the sensed electrical signals are shifted by the multi-pixel serial shift register to the display controller and faults are detected in the driving circuits by analyzing the sensed electrical signals.

The invention relates to an automatic robot capable of picking balls for people, which comprises a movable basic carrier, a charging device and a control system. The movable basic carrier finishes operations of moving, ball-picking and ball-reversing under the control of the control system; the charging device charges the movable basic carrier; and the control system acquires and processes image information on a whole field and controls the movable basic carrier through wireless communication. The automatic ball-picking robot has two operating modes of single-machine running and multi-machine cooperation, can achieve the functions of automatic ball finding, automatic ball picking, automatic ball reversing, automatic charging and the like, and has high ball-picking efficiency and high intelligent degree.

The invention discloses a novel cascaded three-phase bridge converter and belongs to alternating current (AC) / direct current (DC) converters. The converter comprises three-phase AC power supplies, three input inductors and three cascaded three-phase voltage type bridge converters, wherein the three-phase AC power supplies are in star connection and do not have a neutral line. A voltage stress of a switching tube is reduced by using a connection mode of cascaded superposition of three-phase input line voltages, so the converter is applicable to high-voltage and high-power level occasions; and when three-phase input power supplies are unbalanced, inter-phase energy can be compensated for each other, so DC output voltages of each three-phase bridge are automatically equalized. By using cascade connection between bridge arms of the three-phase bridges, compared with a three-phase cascaded converter which is cascaded in same level (m level) and consists of single-phase H-bridge cascaded converters, the novel cascaded three-phase bridge converter has the advantage that: six active switching tubes and m+1 output capacitors are eliminated, so the cost and volume of the converter are reduced.

In a method to control movements of a medical apparatus via a control device with a touch-sensitive display, an apparatus component of the medical apparatus is selected and; and move the selected apparatus component is moved according to commands made at the touch-sensitive display. A safety loop must be closed in order to activate the movement of the apparatus component. A control device to control a medical apparatus, and a medical apparatus having at least one apparatus component, operate according to this method.

The invention discloses a multi-connected air-conditioning unit control method. A multi-connected air-conditioning unit comprises an air-conditioner main unit consisting of more than two outdoor units in parallel connection and an indoor unit, and the outdoor units include a main unit outdoor unit and an auxiliary unit outdoor unit which is used for precisely controlling power output of the outdoor units according to practical power requirements of the indoor unit. Alternation of the outdoor units and variable-frequency compressors of the outdoor units is complete by steps: firstly, judging whether system load Q is smaller than a set capacity Q2; secondly, judging whether the system load Q is larger than a set capacity Q1; and thirdly, judging whether the system load Q is larger than the set capacity Q2 and smaller than the set capacity Q1. By means of alternative control of full-variable-frequency compressors and automatic alternative control of the outdoor units, the outdoor units and the variable-frequency compressors of the outdoor units can be alternatively used while power output of the outdoor units is precisely controlled according to the practical power requirements of the indoor unit within a certain range of the system load, and thereby service lives of the multi-connected air-conditioning unit and the outdoor units are prolonged without adding any extra equipment.

The invention discloses a balance control method for a lithium-ion battery pack, belongs to the field of new energy research and aims at solving the problem of poor balancing accuracy in traditional battery pack balance control. The method comprises the following steps: (1) building a single-particle model for lithium-ion batteries; (2) exerting different excitations on single batteries in the battery pack for balance control and obtaining mechanism parameters of the batteries; (3) detecting status data of the single batteries in the battery pack, and calculating SOC values of the single batteries by the obtained mechanism parameters of the batteries and the status data according to the built single-particle model; (4) obtaining a balance current and balance time by the obtained SOC values of the single batteries according to the requirements of charging balance or discharging balance; and (5) carrying out energy balance control on the single batteries in the battery pack by a balance energy transfer circuit according to the obtained balance current and balance time. The balance control method is used for controlling charging and discharging of the lithium-ion battery pack.

The invention relates to a method for producing a data carrier having a laser-markable layer and a transparent optically variable layer overlapping therewith at least in certain areas, wherein visually visible markings that at least partly overlap with the optically variable layer are produced in the laser-markable layer after the application of the optically variable layer. The invention further includes a data carrier produced by the method and a semifinished product, such as a data carrier blank, that is provided for processing by the method.

The invention provides a design method of a magnetic latching parallel-stepping rotating and swinging extensible joint, and belongs to the technical fields of mechanical manufacturing, intelligent control, robotics, automation control and electromagnetism. According to the main content of the technology, a magnetic latching parallel-stepping swinging face, a magnetic latching parallel-stepping rotating disc and a magnetic latching parallel-stepping driver are combined together to form the mechanical joint which can swing, rotate and be stretched out and drawn back, a driving unit of the magnetic latching parallel-stepping rotating disc, a driving unit of the magnetic latching parallel-stepping swinging face and a driving unit of the magnetic latching parallel-stepping driver are respectively composed of a unit magnetic lathing driver so that parallel execution can be achieved, the joint can rotate to a required angle within the time of a pulse, meanwhile, the swinging face can swing to a required direction and a required angle, and the joint can be stretched out or drawn back to a required length.

The invention provides a continuous-casting crystallizer vibration simulation test unit and a non-sine vibration control method of the continuous-casting crystallizer vibration simulation test unit, and belongs to the technical field of ferrous metallurgy continuous-casting crystallizer simulation application. The continuous-casting crystallizer vibration simulation test unit comprises a main control computer, a controller, a motor driver, a stepping motor, an eccentric wheel, a connecting rod and a vibrating plate used for simulating a continuous-casting crystallizer copper plate. The non-sine vibration control method of the continuous-casting crystallizer vibration simulation test unit comprises the following steps: vibration speeds of the vibrating plate at all moments in the non-sine vibration process are set; the set vibration speeds of the vibrating plate at all the moments are converted into vertical velocity components of the eccentric wheel at all the moments, so that rotation speeds of the eccentric wheel at all the moments are obtained; rotation speeds of the stepping motor at all the moments are obtained, and the controller controls the stepping motor to rotate at the rotation speeds at all the moments through the motor driver; the stepping motor drives the eccentric wheel to rotate in real time and then drives the vibrating plate to conduct non-sine vibration. According to the continuous-casting crystallizer vibration simulation test unit and the non-sine vibration control method of the continuous-casting crystallizer vibration simulation test unit, a mechanical drive mode is adopted for realizing non-sine vibration, a piecewise function method is adopted for establishing a velocity curve, and therefore vibration technological parameters are easy to acquire.

The invention discloses a high gain dual-input direct-current converter based on a switched capacitor network and a modulation method; the high gain dual-input direct-current converter comprises two input sources, two inductors, two power switch tubes, one four-switch capacitor network unit, an output diode, an output filter capacitor and a load resistor; the four-switch capacitor network unit comprises four switch capacitors and four diodes, and the switch tubes can be connected/disconnected so as to effectively charge/discharge the capacitors. The dc converter is simple in a topology structure, small in switch device voltage stress, and two input sources can respectively provide the voltage gains 3 times and 2 times bigger than a conventional Boost converter, thus realizing two-input source high boost transformations; the dc converter is simple and flexible in control, and two path duty ratios can be controlled so as to control the two path input currents and output voltages, thus flexibly distributing each input source powers and maximum power tracing of the new energy.

The invention relates to the field of automatic control of agricultural machinery, and especially relates to an electric automatic steering system for the agricultural machinery. The electric automatic steering system for the agricultural machinery comprises an automatic steering device. The automatic steering device comprises a steering control, a planetary gear reduction mechanism and a disk brushless motor which are coaxially arranged in sequence. The planetary gear reduction mechanism and the disk brushless motor are arranged in a casing. The disk brushless motor is connected with the planetary gear reduction mechanism. The planetary gear reduction mechanism is connected with a connection flange. The connection flange passes through centers of the steering control, the planetary gear reduction mechanism and the disk brushless motor. One end of the connection flange is connected with the steering control, and the other end of the connection flange is connected with a steering shaftof a steering column. The steering column is connected with a mechanical steering device. The mechanical steering device enables a steering wheel to rotate. The steering wheel is provided with a rotation angle sensor. The rotation angle sensor is connected with an electronic control unit. The electronic control unit is connected with a motor driver. The motor driver is connected with the disk brushless motor.

The invention discloses a generalized FPGA configuration system and method and a reconfiguration system and method thereof, comprising an external memory unit, an FPGA configuration unit, an FPGA reconfiguration unit and an FPGA group. The FPGA configuration unit comprises an FPGA configuration control module and a configuration monitoring module. The FPGA reconfiguration unit comprises an FPGA reconfiguration control module, a configuration monitoring module and a reconfiguration timer module. FPGA configuration process consists of power-on initialization, configuration control and state judgment. FPGA reconfiguration process consists of FPGA desynchronization and synchronization control, reconfiguration control and state judgment. Configuration and dynamic reconfiguration of different FPGAs can be realized independently and parallelly; The dynamic reallocation is realized by reconfiguring the timer module with the specified time as the cycle. The design of external storage system maximizes the flexibility of configuration data storage. Simple and clear structure, flexible and efficient control, and strong versatility, high universality, easy to implement, flexible application inmulti-type, large-scale FPGA configuration control system or application specific integrated circuit.

The invention relates to a device and to a method for fitting and filling valve bags (2), comprising a bag fitting device (10) for fitting the valve bags, a gripper device (4) and a fitting device (5), wherein the gripper device is provided for gripping an empty valve bag, and wherein the fitting device is suited for fitting a valve bag on a filling nozzle (27) of a rotating packing machine (1) equipped with a plurality of filling nozzles. A movement of the gripper device can be controlled by a rotatable eccentric device, and the eccentric device can be rotated using a motor in order to periodically receive valve bags and fit them by means of the fitting device.

The invention provides a tension control system. The tension control system aims to solve the problem that in the prior art, tension control systems are not flexible enough in control mode. The tension control system comprises an unwinding section control part, and electroplating section control part and a winding section control part, wherein the unwinding section control part is arranged for unwinding a flexible substrate with constant tension by controlling the tension of the flexible substrate in an unwinding section; the electroplating section control part is arranged for controlling the tension of the flexible substrate in an electroplating section; and the winding section control part is arranged for winding the flexible substrate in a winding section with constant moment. According to the tension control system, the fact that the radius of the volume flexible substrate in the winding section changes slightly is considered, so that the winding section control part is arranged for winding the flexible substrate in the winding section with constant moment, and the control modes of the tension control system are flexible and simple.

The invention discloses a defrosting method of a three-pipe heating recovery system. An outdoor unit of the three-pipe heating recovery system comprises more than two outdoor heat exchangers, more than two three-way valves, more than one compressor, a high-pressure liquid pipe, a low-pressure air pipe and a high-pressure air pipe; and in a heating mode or a mixed refrigerating/heating mode, one outdoor heat exchanger is in a condenser defrosting state, and the other outdoor heat exchanger is certainly not in a condenser defrosting state. In the defrosting process, the defrosting sequence of the outdoor heat exchangers can be adjusted at will according to the actual condition. In the defrosting method, the defrosting time of all the outdoor heat exchangers of the outdoor unit of the three-pipe heating recovery system is staggered, therefore, the capacity of an indoor machine for continuously supplying heat towards indoor is maintained, the influence on indoor heating effect is reduced, and the using comfort of an air conditioner is improved, so that the defrosting method achieves the characteristics of simpleness and flexibility for control, no need of additional electric-heating defrosting equipment, high defrosting efficiency, less influence on heating effect of the indoor unit in the defrosting period, and the like.

The invention relates to the technical field of magnetism-keeping parallel stepping swinging stretchy joints, and belongs to the fields of machine manufacturing, intelligent control, the robot technology, automatic control and the electromagnetic technology. According to the main technical content, a magnetism-keeping parallel stepping swinging face and a magnetism-keeping parallel stepping driver are combined together to form a mechanical joint which can swing and be stretched. The magnetism-keeping parallel stepping swinging face and a driving unit of the magnetism-keeping parallel stepping driver are both composed of unit magnetism-keeping drivers, and therefore parallel execution can be achieved. Only one pulse time is required, the swinging face can be swung to the required direction and angle, and meanwhile the magnetism-keeping parallel stepping driver can be stretched to be the required length.

The invention relates to a double-fed wind turbine generator converter control method used for a flexible direct current power transmission system, and belongs to the technical field of wind power generation. According to the method, a double-fed wind turbine generator is controlled through a converter topology structure comprising a stator side converter, a machine side converter and a grid side DC-DC converter. The method includes the steps that firstly, the grid side DC-DC converter is controlled to work in the direct current voltage reduction state, so that the voltage of a direct current power gird is reduced to a proper level and kept constant; secondly, three-phase inversion is achieved by controlling the machine side converter; thirdly, the machine side converter is controlled after a draught fan is started so that the output frequency of the draught fan changes according to the change of the rotating speed of the generator and according to a fixed proportion; fourthly, the stator side converter is controlled to conduct rectifying and boosting so that maximum power point tracking and power factor correction can be achieved; fifthly, the grid side DC-DC converter is controlled to work in the direct current boosting state so that wind turbine generator flexible direct current power transmission and grid-connected power generation can be achieved. The method is particularly beneficial for popularizing and using the double-fed wind turbine generator in the flexible direct current power transmission system.

The invention relates to a double-fed wind generation set converter topological structure for a flexible direct-current electricity transmission system and belongs to the technical field of wind power generation. The topological structure comprises a stator side converter, a machine side converter and a net side DC-DC converter. One end of the stator side converter is connected with a stator of a wind generator, and the other end of the stator side converter is connected with the machine side converter and the net side DC-DC converter respectively. The other end of the machine side converter is connected with a rotor of the wind generator. The other end of the net side DC-DC converter is connected with a high-voltage direct-current bus through a high-voltage direct-current cable, and double-fed wind generation set flexible direct-current electricity transmission grid connection generating is achieved. Machine side converter control is easy and flexible, the rated power is small, an extra storage battery does not need to be used as an inversion power supply, meanwhile, a boosting electricity transformer and a box-type substation are of no need, occupied space is small, cost is low, consumption is small, and the double-fed wind generation set converter topological structure is especially suitable for offshore wind power.

The invention discloses a gas-steam combined cycle heat supply unit shaft seal steam supply system and a running method. The gas-steam combined cycle heat supply unit shaft seal steam supply system comprises a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a starting boiler and an auxiliary steam header. Steam is supplied to the steam inlet sides of the high-pressure cylinder, the intermediate-pressure cylinder and the low-pressure cylinder through a shaft seal steam mother pipe, a temperature measuring point T2 is arranged on the shaft seal steam mother pipe, the high-pressure cylinder, the intermediate-pressure cylinder and the low-pressure cylinder form a shaft seal cavity, residual steam enters a shaft seal steam return mother pipe through steam return pipelines after the shaft seal cavity completes sealing, a steam return manual regulating valve is arranged on each steam return pipeline, and steam of the shaft seal steam return mother pipe is sent to a shaft seal heater. A steam source on the auxiliary steam header is respectively supplied by a reheating cold section steam supply auxiliary steam header, a high-pressure main steam drain supply auxiliary steam header and a starting boiler steam supply auxiliary steam header. The method that multiple heat sources are supplied to the auxiliary steam header is adopted, the temperature and pressure of steam supplied to a shaft seal by the auxiliary steam header are guaranteed, and the running safety and stability of the shaft seal system are improved.

The invention discloses a full digital alternating-current servo driving system based on a DSP (digital signal processor). The full digital alternating-current servo driving system comprises a single-chip microcomputer and inverter switch elements which form a main loop, a control loop, a data acquisition circuit and the like used for completing position control, speed control, rotation torque control, JOG control, internal speed control, state display and data exchange of an alternating-current servo driver. The full digital alternating-current servo driving system has the advantages that defects of high dispersibility, null drift, low reliability and the like of analog servo are overcome, advantages of digital control in terms of control precision and control method flexibility are realized sufficiently, and the system is simple and flexible in control, complete in status display, rich in interfaces, compact in structure, high in amplitude modulation ratio and the like.

The invention discloses a power station unit multi-steam-source shaft seal steam/gas supply system and a control method thereof. The power station unit multi-steam-source shaft seal steam/gas supply system comprises a high-pressure cylinder, a medium-pressure cylinder, a low-pressure cylinder, a shaft seal cooler, a hydrophobic air heat exchanger, a desuperheater (A), a desuperheater (B) and a rotor connected with a cylinder body accessory; the steam inlet side of the high-pressure cylinder and the steam inlet side of the medium-pressure cylinder share a first branch shaft seal to supply steam, and residual steam enters a shaft seal steam return main pipe through a steam return pipeline manual valve after a shaft seal cavity is sealed; the steam exhaust sides of the high-pressure cylinder and the medium-pressure cylinder share a second branch shaft seal to supply steam, the desuperheater is arranged on a second branch steam supply pipeline, and a measuring point for measuring the temperature of the steam is arranged behind the desuperheater and in front of a shaft seal body; and all shaft seal return steam of the high-pressure cylinder, the medium-pressure cylinder and the low-pressure cylinder is gathered and then enters the shaft seal cooler. The system has the advantages of multi-source steam supply, parameter matching, flexible control mode, reliable protection logic and automatic tracking under accident conditions.