92results about How to "Achieve self-control" patented technology

The invention relates to a magnetic linkage self-control direct torque control method of a brushless DC motor, and belongs to the field of speed regulation of brushless DC motors. The control method solves the problem that the existing method complicates a system control method due to the adoption of double closed-loop regulation of torque and motor magnetic linkage. The control method comprises the following steps: calculating by using a speed calculation unit according to a signal output by a position sensor to obtain a rotor angular velocity of the brushless DC motor; estimating the back-emf of the motor by using a back-emf sliding mode observer according to a current value, a voltage value and the rotor angular velocity; calculating by using the torque estimation unit to obtain the torque Te of the brushless DC motor; regulating by using a torque hysteresis regulator to obtain a control parameter tau after solving the difference between the Te and the predetermined torque Te<*> of the brushless DC motor; and combining the signal output by the position sensor, and generating a corresponding switching signal by a voltage vector selecting unit to control an inverter so as to drive the brushless DC motor to operate. The magnetic linkage self-control direct torque control method is used for the speed regulation control of the brushless DC motor.

The invention discloses a high-definition video aerial photography multimode sensor self-outer-sensing intelligent navigation system. The system comprises a self-outer-sensing module, an information fusion module and a master control module, wherein the sell-outer-sensing module is used for detecting and sensing the internal state and the external state of an aerial photography aircraft in real time through fusion of multiple sensors and acquiring internal state information and external state information of the aerial photography aircraft; the information fusion module is used for gathering the internal state information and the external state information of the aircraft into a decision making layer through a centralized topological structure, making a consistent decision after the information of the multiple sensors is fused in the decision making layer and outputting a navigation control signal; the master control module is used for adjusting and controlling the state of the aerial photography aircraft in real time in a three-dimensional navigation mode according to the navigation control signal, and therefore horizontal autonomous navigation and vertical autonomous navigation of the aerial photography aircraft are achieved. The invention further discloses a high-definition video aerial photography multimode sensor self-outer-sensing intelligent navigation method.

The invention discloses a torque pulse suppression method of a brushless DC motor in an all speed regulation range. The torque pulse suppression method comprises the steps of dividing two states of low-speed running and high-speed running according to a motor rotational speed obtained by a speed calculation module; and respectively performing torque pulse control according to the following modes with regard to the two states. By the torque pulse suppression method, existing flux linkage and torque dual-loop control based on direct torque control is simplified, the problem of control system complexity due to the torque and flux linkage dual-closed loop is solved, the problem of control algorithm complexity of the system brought by a sliding-mode observer introduced into an existing method for observing a counter potential is solved, and with regard to high-speed running of the motor, the problem of torque pulse caused by different current change rates of a switch-on phase and a switch-off phase is solved.

The invention discloses a position-spring-force feedback type electric proportional variable axial plunger pump. The plunger pump comprises a variable plunger pump body and a variable mechanism arranged on one side of the variable plunger pump body, wherein the variable mechanism comprises a control piston, a feedback rod, a feedback spring, a valve core, a valve bush, a pre-compression spring, a proportional electromagnet and the like; and the body part and the variable mechanism are connected through the feedback rod and the feedback spring. The movement of the valve core is controlled through the change of the current of the proportional electromagnet to allow oil in the control valve to enter big and small cavities of the variable piston and allow the variable piston to move left and right so as to control the movement of a swash plate; and at the same time, the feedback rod arranged on the control piston feeds back to control the displacement of the piston and the feedback spring is compressed to transmit a force to the valve core to make the valve core positioned at a new place, so that the delivery volume of the pump and the input signal input into the proportional electromagnet are approximate to a linear proportional relationship. The servo control of electromagnetic force-pump delivery is realized in the form of position-spring-force feedback.

The invention discloses a fluoride removal method of graphite purification waste water and a processing system. The fluoride removal method comprises the step that the graphite purification waste water is subjected to diffusing dialysis, so as to recover acid therein. Diffusing dialysis processing liquid is neutralized and filtered through two steps, and obtained neutralized filter liquor is in contact with a fluoride removal filter material to remove fluoride, so that fluorine content in obtained effluent reaches the standard, and the effluent reaches the effluent standard. The waste water continuously runs in the processing system, and effluent obtained by processing is recycled in the system. By adopting the processing method provided by the invention, through applying the processing system provided by the invention, not only can the fluoride in the waste water can be effectively removed, but also the waste water processing cost can be obviously reduced, the whole system runs stably, and the operation is simple. Continuous and automatic running can be realized.

The present invention discloses a shoe VOC volatilization sampling apparatus and a method. The apparatus is characterized in that the apparatus comprises an accommodation chamber, the volume of the accommodation chamber can accommodate a pair of the whole shoes, the accommodation chamber is provided with a heat conduction outer wall, comprises an openable sealing door and a gas exhaust valve, and further comprises a heater capable of heating gas in the accommodation chamber, and the gas exhaust valve and the accommodation chamber form a complete gas path. With the apparatus, rapid VOC detection with the whole shoe manner is achieved, characteristics of high precision, rapidness and convenient operation are provided, and the novel shoe VOC detection mode is established.

The invention discloses a protection method of private data of users in personalized search environment. By constructing a tree-like user interest model based on an upper and lower layered structure,respective sequencing of the search results in a server and a client-side is realized on the basis that the initial search engine is not changed; and the dynamic update towards the user interest modelensures that the user interest data acquired by a system are more real-time and accurate. The invention provides a quantitative method of the exposure degree of user privacy, and users can realize self control on privacy exposure, thus realizing the balance between the quality of personalized search and privacy protection. The search results are in the server and the client-side and based on themode of respective sequencing of the user interest model, thus leading the server to select and adjust the intermediate search results in a certain range according to requirements, being capable of effectively improving system performance and being applicable to conditions of restricted search environment.

The invention discloses a traditional Chinese medicine steam therapy instrument. The instrument comprises a housing, a traditional Chinese medicine steam generator, an air blower, a steam conveying pipeline, and a fumigating ring cover which can sleeve each part of a human body and forms a closed fumigating cavity; a control display panel is arranged on the housing and has the switching function, the time control function, the temperature control function, the steam quantity control function, the dry burning alarming function and the fault alarming function; the traditional Chinese medicine steam generator comprises a water boiling chamber in which liquid and traditional Chinese medicines can be placed, a heating device for heating the water boiling chamber, a cover body, and a control device which is connected with the heating device and the control panel; a steam outlet is formed in the cover body; the steam conveying pipeline is connected to the steam outlet; traditional Chinese medicine steam in the water boiling chamber sequentially flows through the steam outlet and the steam conveying pipeline until entering the fumigating cavity in the fumigating ring cover; a temperature sensor is arranged at the steam outlet, wherein the temperature sensor is connected with the control device and can be used for transmitting temperature data of the traditional Chinese medicine steam at the steam outlet to the control device.

The invention relates to a large depth-of-fusion and large depth-to-width ratio perforated plasma arc welding device and a welding method, and belongs to the technical field of plasma welding. The welding device comprises a welding gun, the end part of the welding gun comprises a tungsten electrode, a porcelain sleeve is arranged on the outer side of the tungsten electrode in a sleeved mode, a water-cooled copper nozzle is arranged on the outer side of the porcelain sleeve in a sleeved mode, a gas cover is arranged on the outer side of the water-cooled copper nozzle in a sleeved mode, and protective gas is introduced between the water-cooled copper nozzle and the gas cover; a spiral flow guide groove is formed in the outer surface of the porcelain sleeve, ionized gas is introduced betweenthe porcelain sleeve and the water-cooled copper nozzle, the ionized gas flows between the inner wall of the water-cooled copper nozzle and the flow guide groove, the ionized gas flows out of the outlet of the water-cooled copper nozzle, and the ionized gas forms a vortex at the lower cavity of the water-cooled copper nozzle; the volume of the lower cavity of the water-cooled copper nozzle is smaller than the volume of the upper cavity, and the inner wall of the lower cavity is a streamline inner wall. The free stroke of the ionized gas is short, the directivity of the airflow is strong, so that it is beneficial to increase of the arc stiffness. Compared with an eddy current forming condition in an existing structure, the welding device has method has the advantages that the restrain of the eddy current is strong, the controllability good and the eddy current effect is obvious.

The invention discloses a micro-grid system, and relates to a power grid technology, in particular to a micro-grid system. A micro-grid low-voltage power supply bus is connected in parallel through agrid-connected inverter, boosted to 10KV through a power supply transformer, and connected in a state grid. The microgrid system not only can realize stable power supply in the grid, but also can be stably butted with a large power grid system. The system comprises a photovoltaic power generation system, a diesel generator system and a battery energy storage system, wherein the photovoltaic powergeneration system and the diesel generator system are used as distributed power supplies; the whole microgrid system is divided into six modules. The system comprises a reference power supply module,a photovoltaic power generation and grid-connected control module, a diesel generator and an intelligent control system module thereof, an energy storage system and an intelligent management module thereof, a load intelligent management module and a system grid-connected module. As a complete power system, functions of power balance control, system operation optimization, fault detection and protection, electric energy quality management and the like are realized by means of self-control and management energy supply.

The invention discloses a low-energy self-circulation treatment method for rural sewage, which is characterized in that the treatment method comprises the steps of adopting an aerobiotic adherent biological filter method, allowing microorganisms to be adhered onto the surface of a filtering material in an aerobiotic manner, forming a biological film, adsorbing and degrading organics, mixing inflow sewage and filter liquor for dilution, allowing the treated sewage to be continuously circulated and filtered in a device and contacted with the biological film continuously, and achieving a purification purpose. The treatment method has the prominent characteristics that the inflow sewage is filtered for many times through the circulation, and the shock load of a sewage amount is resisted effectively. According to the treatment method, no worker is required for watching; the technological process is simple; a system can completely automatically treat the sewage; and the only power source is an immersible pump located in a pond.

The invention provides a multifunctional intelligent wheelchair, which comprises a wheelchair main body, a wheelchair frame and an operating device, wherein the wheelchair main body comprises a backrest, a seat cushion, a calf leaning pad, a baffle plate and pedals; the wheelchair frame comprises armrests, a wheelchair fixing rack, a fixed plate and a stool box; the operating device comprises a front wheel, a rear wheel, an auxiliary wheel, a brake device, a connecting rod, a sliding block, an electric control box and a storage battery; the backrest comprises a backrest main body, an insertingunit, a fastening unit, first sliding rails, handles, pull handles, a first rotating shaft and a first motor; and the stool box comprises a stool box shell, a stool, an electronic moving gate and a second sensor. The wheelchair provided by the invention is simple in structure, complete in functions and high in intelligence degree; independent control of a user over the wheelchair can be achieved,and meanwhile, a problem that the user is inconvenient in using toilets can be solved; the wheelchair, in the case of falling down, can automatically alarm and wait for rescuing; and meanwhile, the wheelchair can serve as a first-aid bed.

The invention discloses a monitoring control method and device, monitoring equipment and a storage medium. The method comprises the steps of: when the monitoring equipment is in a self-control mode, controlling a wireless network module of the monitoring equipment to carry out terminal scanning in a set communication range; if at least one piece of terminal identifier information is acquired afterscanning, carrying out searching matching on the at least one piece of terminal identifier information in a set terminal identifier table; and according to an acquired searching matching result, carrying out switching control on an image acquisition device of the monitoring equipment. By utilizing the method, self-starting or self-shutting time of the monitoring equipment can be accurately controlled, and in a case of members exist at home, a risk that home privacy is exposed can be reduced; and meanwhile, in a case that no member exists at home, whether a home environment is abnormal can bemonitored, so that self-control on the home safety environment is implemented, thereby better reinforcing actual use experience of the monitoring equipment.

The invention discloses a commercial environment-friendly multifunctional integrated water tank cabinet for purifying water. The commercial environment-friendly multifunctional integrated water tank cabinet mainly comprises a stainless steel integrated water tank, cold and hot water faucets, a water-purifying faucet, a cabinet body, an intelligent controller, a water purifier, a pressure barrel and a garbage processor; the stainless steel integrated water tank is arranged on the cabinet body, and the cold and hot water faucets and the water purifying faucet are arranged on the stainless steel integrated water tank; the stainless steel integrated water tank at least comprises two water tanks, each water tank is provided with the cold and hot water faucet, the garbage processor is arranged at the water outlet place of the bottom of one water tank of the stainless steel integrated water tank 1, or the garbage processor is arranged at a main water outlet place of the stainless steel integrated water tank; the water purifier and the pressure barrel are arranged in a space at the lower part of the cabinet body, and the intelligent controller used for controlling the water purifier and the garbage processor is arranged on the cabinet body, the commercial environment-friendly multifunctional integrated water tank cabinet has functions of reminding a working state of the water purifier in real time and reminding the replacement of a filtering element in the later period, the working state and the frequency of the garbage processor are monitored; the commercial environment-friendly multifunctional integrated water tank cabinet realizes automatic water purification and garbage processing by adopting integrated design of a water purifier system, a garbage processing system and a cabinet, and meets the requirements of multiple functions, environment friendliness, safety and the like of a commercial kitchen.

The invention relates to a multi-energy complementary combined cooling heating and power microgrid framework and a modeling method thereof. The invention relates to the technical field of multi-energycomplementary combined cooling heating and power supply micro-grids, in particular to a multi-energy complementary micro-grid which is a comprehensive energy network system provided with a protectiondevice and integrating various energy supply devices, loads, energy conversion devices, cooling heating and power energy storage devices and the like. Based on the microgrid energy management system,self-control and self-management can be achieved, autonomous selection can be achieved, the microgrid energy management system and a large power grid are standby for each other, energy is provided for cold/heat/electric loads in a region, the energy supply requirement is met, and reliable and economic energy supply of the microgrid is achieved. The multi-energy complementary micro-grid can supplyvarious energy sources such as cold, heat and electricity at the same time, different energy sources can be mutually converted or used in a gradient mode, and the energy utilization efficiency in a region is improved to the maximum extent. Compared with the energy supply mode of the traditional micro-grid, the multi-energy complementary micro-grid has obvious advantages.

The invention discloses a special container device for an antifouling energy-saving water machine. The special container device comprises a purified water container for storing purified water, wherein the purified water container is provided with a water inlet which also serves as a water outlet; the water inlet of the purified water container is hermetically connected with water inlet and outletpipelines; the water inlet and outlet pipelines are communicated with a water inlet pipe and a water outlet pipe respectively; the water inlet pipe is provided with a pressure control switch, and thepressure control switch can detect the change of pressure in the purified water container and automatically open or close the water inlet pipe passage; and the volume and the capacity of the purifiedwater container can be expanded and shrunk together with the magnitude change of the stored water quantity in the purified water container. The traditional plastic barrel is replaced by adopting a special film bag and used as the purified water container; by automatic shrinkage and expansion of the purified water container, the possibility that the purified water in the container is directly contacted with the air is effectively avoided, so that secondary pollution is reduced and even eliminated; and the special container device has the advantages of simple structure, strong antifouling capacity, high automation degree and the like.

The invention discloses an electronic thermostat control system which comprises a single-chip microcomputer minimum system, a CAN communication circuit, a power circuit, a valve rod position detectioncircuit, a wax packet temperature detection circuit and a wax packet heating circuit. The CAN communication circuit, the valve rod position detection circuit, the wax packet temperature detection circuit and the wax packet heating circuit are connected with the single-chip microcomputer minimum system. The power supply circuit are connected with the single-chip microcomputer minimum system, the CAN communication circuit, the valve rod position detection circuit, the wax package temperature detection circuit and the wax package heating circuit. The electronic thermostat control system has thefollowing advantages that intelligent control and intelligent driving of an electronic thermostat are achieved, the electronic thermostat is made into intelligent hardware, an engine ECU can control operation of the electronic thermostat only by sending an opening degree command to the electronic thermostat through a CAN bus, and the ECU does not need to output control current to the electronic thermostat any more; and by additionally arranging a position detection sensor on an output driving shaft of the electronic thermostat, the output position feedback function of the electronic thermostatis achieved, and therefore the functions of position closed-loop control and fault diagnosis are achieved.

The invention relates to the technical field of photovoltaic power generation. The invention is to solve the problem of the poor power stability of a busbar of an existing photovoltaic energy storageinverter system and proposes another photovoltaic energy storage inverter system including a photovoltaic array, an inverter, a first storage battery pack, a second storage battery pack, a data acquisition module, a control module, a first relay module, a second relay module and a third relay module. Different control strategies are employed for the photovoltaic array, the storage battery packs and the load according to different light intensity periods and different load requirements, flexible scheduling is performed, the self-control of the photovoltaic energy storage inverter system is achieved, the electric energy stability of the busbar is improved, the photoelectric utilization rate and the safety and service life of the storage battery packs are improved, and the invention is suitable for an off-grid type photovoltaic energy storage inverter system.

The invention relates to a heating system for garage type dry fermentation and an operation control method thereof. Based on the concept of utilization of energy generated by microbial self-heating, partial utilization of hot water generated by an auxiliary heater, comprehensive utilization of energy cascade and system energy consumption coefficient (COPs) in a dry anaerobic fermentation process, a spiral coil heat exchanger is used for preheating outdoor air led in at the worst operating condition, the auxiliary heater utilizes an electric boiler to heat an auxiliary heating loop, an air source heat pump unit improves a low grade heat source (air) to a high grade heat, and the heating system for the garage type dry anaerobic fermentation can achieve a air source heat pump direct heating mode and an air source heat pump-electric boiler combined heat supply heating mode. The operation control method of the heating system solves the problem that system modes switch optimal operation automatically under different weather conditions so as to achieve economy, energy conservation and environment protection of the whole system, and contributes to promote development and industrialization process of dry anaerobic fermentation engineering rapidly.

The invention discloses a movable type dynamo-electric equipment cooling device comprising a pedestal; a running gear is arranged below the pedestal; an elevating system is arranged above the pedestal, and can move up and down with respect to the pedestal; a cooling mechanism is arranged on the elevating system, and can spray liquid state nitrogen onto heated areas of the dynamo-electric equipmentvia micropores, so the immediately gasified nitrogen can take away the heat from the dynamo-electric equipment and thus cooling the equipment. Compared with the prior art, the cooling device can convey the liquid nitrogen via a nitrogen conveyer pipe, and can discharge the liquid nitrogen via a blower, thus fast cooling the equipment; the cooling device can freely walk in a factory, has cooling and dedusting effects, is simple in operation, stable in structure, and long in life.

The invention belongs to the field of boilers, particularly relates to an energy-saving environmentally-friendly boiler, solving the problems such as poor energy-saving and environmentally-friendly comprehensive effects, poor boiler combustion effect and the like in the prior art. A gasifying chamber, a gas combustion chamber and a flow combustion chamber are arranged in a boiler furnace of the boiler, wherein the gasifying chamber is arranged at the lower part of one side in the boiler furnace, the flow combustion chamber and the gas combustion chamber are arranged at the other side in the boil furnace with one being arranged above the other and are communicated with each other, an oxygen feeding and exhausting jet burner is arranged in the gasifying chamber and communicated with the gascombustion chamber. According to the invention, after being fully mixed with air or oxygen introduced through an intake and exhausting opening, smoke, gas and fire enter the gas combustion chamber for further fully combusting; and after the smoke, gas and fire are fully combusted in a baffled flue in the flow combustion chamber and energy is used fully, the smoke, gas and fire are discharged, thereby energy-saving environmentally-friendly effects are achieved.

The invention discloses an air corona discharge atmosphere water collector based on remote control and solar power supply. Elongated and bared electrode leads are erected over a farmland or forest region and serve as a discharge electrode, the aerial electrode leads are arranged in parallel, and are supported by support rods and pillar type insulators, distributed intelligent high voltage power supplies supply power independently, each distributed intelligent high voltage power supply comprises a high voltage module, a solar battery module and an onsite monitoring module of a remote control system, the electrode leads are connected in parallel to the output end of the high voltage module of the distributed intelligent high voltage power supply, and the other end of the high voltage module is grounded. The water collector can operate independently from the power grid, an irrigation water source is not needed, water resources can be taken from the atmosphere directly, and the water collector can be applied to remote regions with irrigation difficulties. The water collector provides real-time weather information via the Internet, operation of the water collector is controlled remotely, and thus, the water collector is more efficient and reliable.

The invention provides a quantitative and constant-temperature irrigation device for flow-storage separation. The quantitative and constant-temperature irrigation device comprises a solar water heater, a treatment water tank, a water storage tank, a main electric valve and an auxiliary electric valve. The interior of the treatment water tank is provided with a solar coil pipe. The treatment water tank is connected with the water storage tank through a hot water conveying pipeline. The water storage tank is connected with the water storage tank through a cold water conveying pipeline. The right side of the water storage tank is connected with a water outlet pipeline, on which the main electric valve is arranged. The right side of the water storage tank is connected with a drainage soft pipe, on which the auxiliary electric valve is arranged. Compared with the prior art, the quantitative and constant-temperature irrigation device for flow-storage separation has following beneficial effects: automatic control over fixed quantity and water consumption crop irrigation are achieved; and water waste during management caused by improper management in water-saving irrigation projects such as sprinkling irrigation and micro-irrigation is avoided.

The invention discloses a method for continuously separating and purifying high-purity oleamide. Industrialized continuous application of separation and purification of oleamide products is realized by a short-path molecular distillation technology and through a set of procedures of first-stage falling film flash, second-stage rotary film fractionation and third-stage short-path molecular distillation; low-boiling-point substances which influence color, odor and melting point of the products and high-boiling-point substances with high viscosity and deep color in the synthesized products are separated and removed successfully; the product purity (total amide content) is high and more than 98.5 percent, the color is good (less than 100 Hazen), the melting point is high (73.9 to 75.1 DEG C), and quality indexes are remarkably increased; and four SGM type shielding pump conveying pumps (PS1-PS4) are adopted, so the vacuum leakage problem of material input and output during continuous operation of the device is solved and continuous and stable operation of the device is guaranteed. The method has the advantages that the separation effect is good; the product yield is obviously increased and the product quality is obviously improved; continuous automatic industrialized stable production is realized; operation convenience and stability are realized; environmental pollution is avoided; and the production cost is low.