284results about How to "Guaranteed control effect" patented technology

The invention relates to a self-controlled efficient and electrostatic-spraying pesticide application machine for greenhouses, and the machine provided by the invention comprises a spraying dolly, a pesticide supply system, a pressure fluctuation elimination system, an HMI-PLC (human-machine interface-programmable logic controller) human-machine interactive automatic logic control system, a rotating electrostatic spray system, a high-definition mistform vedio monitoring system, a machine frame and a power supply system, wherein the pesticide supply system, the pressure fluctuation elimination system, the HMI-PLC man-machine interactive automatic logic control system, the rotating electrostatic spray system and the power supply system are arranged in a spraying dolly shell (42); the high-definition mistform vedio monitoring system is arranged at the top of the spraying dolly; and the HMI-PLC man-machine interactive automatic logic control system is connected between the pesticide supply system and the rotating electrostatic spray system by virtue of a pipeline. By using the machine provided by the invention, on the premise of ensuring the pest control effect, the utilization rate of pesticides is improved, the pest control cost is reduced, the environmental pollution is reduced, the production efficiency and the social efficiency are improved simultaneously, and the labor intensity is reduced.

A four-wheel hub motor driven electric vehicle yaw stability control method belongs to the technical field of control. The object of the present invention is to provide a four-wheel hub motor driven electric vehicle yaw stability control method that achieves better stability by tracking a desired centroid side drift angle and a desired yaw rate. The method of the invention obtains the reference values of the centroid side drift angle and the yaw rate under the ideal motion state of a vehicle through a two-degree-of-freedom reference model, designs a yaw moment optimization model prediction controller and converts an optimal additional yaw moment into four wheel hub motor additional torques to complete distribution. The yaw stability controller designed by the invention can effectively track the reference values of the centroid side drift angle and the yaw rate, and takes into consideration the factors of the tire lateral force saturation under the extreme working conditions, so that the prediction model is more accurate and at the same time a relatively small additional yaw moment is solved. In addition, the energy loss is reduced.

The invention provides a control method, a control device, a controlled method and a controlled device. The control method comprises the steps: a wearable device sends a signal; the wearable device obtains the signal transmission situation when a user executes actions and obtains position information of the wearable device according to the transmission situation; the wearable device sends the position information to the controlled device so as to enable the controlled device to confirm a control command corresponding to the received position information according to the corresponding relation of pre-configured position information and the control command and perform operation according to the control command. The control method can obtain the position information according to the signal transmission situation when the user executes the actions and obtains the control command according to the position information so as to control the controlled device, the convenience of the wearable device can be utilized, and the user experience can be improved.

The invention discloses a control optimizing method for a master controller of supercritical unit boilers. The control optimizing method includes introducing an inertial element F(s) and a lagging element y1 into a feed-forward control branch to replace a modification function My(s) for a main vapor pressure input value ysp which is randomly set by an original system; providing input signals of the lagging element y1 by an element F(s), and leading reference signals yf outputted by the lagging element y1 to act on an input end of a closed-loop control element; and additionally optimizing a transfer function Mu(s) of the feed-forward control branch of an original boiler master control system into a pressure compensation transfer function Mf(s), meeting the requirement of parameter-variable running of a feed-forward function uff of the original boiler master control system, leading the uff and the yf to jointly act on the closed-loop control element, then controlling a follow-up executing mechanism and accordingly realizing master control for the boilers. The control optimizing method has the advantages that the master controller of the boilers can quickly and accurately output instructions to a fuel master controller and a water supply master controller, accordingly a main vapor pressure control effect is guaranteed, response characteristics of load are further ensured, and control quality of the unit and economical indexes are improved.

The invention discloses a device for hand rehabilitation training with the function of wrist rehabilitation training, which effectively solves the problems in the prior art that the training device is bulky and not easy to carry, and has the advantages of simple structure, easy operation and high functionality. As follows: the device includes at least one two-joint finger training mechanism and a wrist training mechanism; wherein, each two-joint finger training mechanism includes a power drive source fixed by the joint bracket of the finger near the end of the finger, and the push rod of the power drive source is connected to the finger near the end of the finger. The joint driving part is connected to control the rear joint of the human finger; the finger proximal end joint support, the finger proximal finger end joint driving part is fixed by the finger proximal finger end joint support and the finger proximal finger end joint support defines the position of the finger proximal finger end joint driving part The moving path is the far fingertip joint support of the finger, and the multi-link mechanism is connected with the finger far fingertip joint support.

The invention provides a chassis domain controller, system and method of an automobile. The chassis domain controller is used for obtaining automobile state parameters detected by a plurality of sensors of an automobile, generating a control instruction according to the automobile state parameters and sending the automobile state parameters and the control instruction to corresponding electronic control units in the function control units connected with the sensors so as to adjust the state of the automobile. In this manner, the chassis domain controller can uniformly obtain automobile state parameters; according to requirements of each electronic control unit in the function control unit, the corresponding automobile state parameters and the generated control instruction are sent to the corresponding electronic control unit; the problem that when multiple electronic control units in the function control unit independently adjust the state of the automobile, the automobile state parameters are repeatedly obtained, the corresponding states of the automobile are resolved, and consequently computing resources are wasted is solved, and a large number of resources can be saved under thecondition that the control precision and the control effect of the automobile are guaranteed.

The utility model discloses a flow control method based on business priority and the system, comprising a parametering procedure and a load control procedure. The parametering procedure is used for configuring the total business flow of all accessed systems in a business flow cycle, business weight and priority of each business, and the corresponding business low rate of each priority of the control system. The load control procedure judges that whether the total business flow of all accessed businesses in the business flow cycle is smaller than the total system business flow when a business requests accessing, and if yes, the business weight, the priority and the corresponding business low rate of the priority are captured and the business flow is controlled according to the parameters. The utility model has the advantages that guaranteeing effectively the load/flow control performance, avoiding the influence of the burst business to the system, having no influence in accessing high priority business while low priority business increasing suddenly.

The invention relates to a rinsing air purification technology and in particular relates to a cold-hot type rinsing air purification device using a multilayer staggered spray mode. The cold-hot type rinsing air purification device using the multilayer staggered spray method comprises a water storage tank, a spray tank, a water supply pipe, a water pump and an exhaust fan, wherein the water storage tank comprises a wastewater storage tank, a clear water storage tank, an electronic refrigerator, an electronic heater, an isolation plate and a wastewater filtration screen; the spray tank comprises a spray tank shell, a spray plate, a spray pipe, an air inlet, an air outlet and an air filtration screen; the spray plate, the spray pipe, the air inlet, the air outlet and the air filtration screen are arranged in a tank body; due to the adoption of the multilayer staggered spray method and a curve air flowing path, an equipment resource can be used to the greatest extent; air is fully sprayed and washed, so that the best purification effect can be achieved; the temperature of the air in a room can be adjusted according to the requirement during purifying of the air; the device can be used as an indoor moving air purifier, can be mounted on the wall to be used as an air purification window, and can be applied to spray purification towers for purifying industrial waste gas generated during waste incineration; the defects that a filter element is blocked and parts are frequently replaced can be avoided.

The invention discloses a method for accompanying initialization control according to relative motion characteristic quantities behind near-circular orbit space vehicles. The method comprises an orbit period calculating module, a relative motion characteristic quantity calculating module, an orbit control strategy module and a thruster startup/shutdown control module. The control method is stored in a data processing unit of a tracking space vehicle and controls the tracking space vehicle to change from an approaching state to a long-term and stable accompanying state in the rear region of a target space vehicle by the aid of a relative tracking device, an inertial navigation system (INS)/global positioning system (GPS) combined navigation device and a thruster which are installed on the tracking space vehicle. The control method has the advantages of being concise in data processing process, small in calculation amount and good in control effect.

The invention relates to a virtual synchronous generator control method suitable for a photovoltaic grid-connected system. According to the method, modulated waves required by the generation of PWM pulses are controlled; the modulated waves are compared with carriers, so that PWM pulse signals are generated to control the switching on and switching off of the switch tube of a three-phase bridge DC/AC inverter; and the VSG (virtual synchronous generator) control of the photovoltaic grid-connected system can be realized. Experimental simulations show that the method of the invention can effectively control the DC/AC inverter in the photovoltaic grid-connected system, has good effects in maintaining power balance, voltage and frequency stability of the system and can improve the transient stability and dynamic quality of the photovoltaic grid-connected system.

The invention relates to a production method for increasing nitrate removal capacity by a membrane method. Light brine from a brine electrolytic dechlorination working section is subjected to pretreatment, and then, enters a membrane device for filtering sodium sulfate; outlet water of the membrane device for filtering the sodium sulfate is divided into two parts; one part which is nitrate-poor brine with a concentration being lower than 3 g/l enters a primary brine device of a sodium hydroxide device for salt dissolving; the other part which is nitrate-rich brine with a concentration being higher than 45 g/l enters a refrigeration denitration unit, temperature is once decreased to -7 to -8 DEG C, and the temperature is readjusted to 1 to -3 DEG C so as to separate out Glauber's salt crystals; the Glauber's salt crystals enter a centrifuge so as to produce Glauber's salt products; and mother liquor is returned for repeated use. With the adoption of the production method provided by the invention, the content of rich nitrate is increased through refiltering the nitrate-rich brine under the conditions of existing nitrate removal device by the membrane method, and more Glauber's saltcrystals are correspondingly separated out under the condition of using the same flow of nitrate-rich brine, so that the production capacity of the nitrate removal device by the membrane method is increased, and brine with a qualified sulfate indicator is ensured to be obtained.

The invention provides a fungus spore wettable powder which comprises diatomite 85-90%, lignin 1-30%, carboxymethyl cellulose 0.1-1%, sodium humate 0.01-0.2% and Gliocladium spp. spores powders having hyperparasitism actions against various plant pathogenic bacteria such as sclerotiorum, gray mold bacterium, sheath blight bacterium and root rot bacterium.

The present invention relates to an antenna of a terminal and belongs to the antenna technological application field. The antenna includes a bottom frame, a side frame, a circuit board, at least two variable elements, a first radiating unit, a second radiating unit, and a third radiating unit; the circuit board is provided with a signal feeding point, at least two first grounding points and at least two second grounding points; the signal feeding point is connected with the bottom frame through the first radiating unit; the at least two first grounding points are connected with the bottom frame through the second radiating unit with first slot coupling realized, and low-frequency resonance is generated; the at least two second grounding points are connected with the side frame through thethird radiating unit with second slot coupling realized, and intermediate-frequency resonance is generated; variable elements are connected in series between at least one first grounding point and thesecond radiating unit; and variable elements are connected in series between at least one second grounding point and the third radiating unit. With the antenna of the present invention adopted, the problem of a poor effect in antenna frequency adjustment can be solved, the effect of the frequency adjustment of the antenna can be improved, and the performance of the antenna can be improved. The antenna of the present invention is used to send and receive signals.

The invention relates to a special method for applying 98% of Longxin dazomet microgranule, belonging to the technical field of disease and insect pest prevention and treatment. The method comprises the following steps of: ploughing 2-4 times when the relative water content of soil is 70%-75%, spreading the 98% of Longxin dazomet microgranule over the ploughed land parcel to be applied with the application amount of 30-40kg/666.7 square meters, harrowing to the depth of 30cm, and then covering and sealing for 30-40 days by using a thin film at the average temperature of 0-20 DEG C; and turning up the soil and opening to the air for 7-10 days, and then planting crops with the conventional method. On the premise of ensuring the effects of prevention and treatment, the invention greatly reduces the application amount of the 98% of Longxin dazomet microgranule, thereby lowering the drug cost on each unit area, reducing the drug damage to the soil and atmosphere and lowering the environmental cost.

The invention provides a method for preparing a large quantity of chlamydospore of Gliocladium virens, which comprises a culture medium formula and culture technology. A liquid medium comprises the following compositions: 20 to 25 grams per liter of glucose, 1 to 3 grams per liter of bean cake powder, 1 to 3 grams per liter of urea, 0.005 to 0.05 gram per liter of ferrous sulfate, 0.75 to 1.5 grams per liter of dipotassium hydrogen phosphate and distilled water. The liquid medium is used for fermentation culture of Gliocladium virens which have superparasitic function on various plant pathogenic fungi (such as sclerotinia, gray mold, banded sclerotial blight and pine root fungi). The culture time is calculated beginning from inoculation, and the chlamydospore of the Gliocladium virens begins to be greatly generated after 36 to 48 hours and is respectively and independently separated. The invention aims to provide the culture medium formula with lower price and rich sources of raw materials, wherein a large quantity of the chlamydospore of the Gliocladium virens can be prepared by utilization of the culture medium formula; and the repeatability is good and the cost is greatly reduced under the condition of liquid fermentation culture, so as to guarantee the biological activity and the prevention and treatment effect of the spores in production and application.

The invention discloses a hand function rehabilitation training robot system and a control method thereof. The system includes a hand rehabilitation training device, a portable Emotiv EEG (electroencephalogram) signal acquisition module, a computer and a controller, wherein the portable Emotiv EEG signal collection module collects the module collecting carrier' EEG signals and sends to the computer wirelessly; the computer conducts preprocessing, feature extraction and classification recognition on the EEG signals, and judges whether or not the carrier has a motion imagination intention index larger than a preset threshold; according to the motion imagination intention index, the controller sends a set command to control a power drive source and a thumb power drive source in the hand rehabilitation training device to perform corresponding movements. The hand function rehabilitation training robot system and the control method thereof can collect the carrier' EEG information in real time, analyze the EEG information, and feed back the carrier' brain activity state to the carrier through human-computer interaction in real time, and when the carrier' motion imagination intention reaches the threshold, the training device is controlled to perform passive training.

The present invention belongs to the field of slow-release fertilizers, and specifically discloses a melon high-efficiency slow-release fertilizer with degerming insecticidal effects, the melon high-efficiency slow-release fertilizer with degerming insecticidal effects is characterized by comprising the following components in parts by weight: garlic polysaccharide sulfide derivative, attapulgite, polyvinyl alcohol, a crosslinking agent, polyglutamate hydrogel, mesoporous silica nanoparticles, salicylic acid, toosendanin, pyrethrum, tea polyphenols, composite microbial agents, sodium selenite, compound sodium nitrophenolate, viscous konjac flour, residue of furfural, brown sugar residue, and amino acids and the like. The garlic polysaccharide sulfide derivative and the attapulgite are used as basic coating materials, the micron size composite hydrogel prepared from the polyglutamate hydrogel and different sizes of mesoporous silica nanoparticle matters are added into the coating materials, the pore size of the coating materials are enriched, the dynamic slow-release performance and nutrient use efficiency of the fertilizer are improved, the fertilizer efficiency regulation property is ensured, the melon high-efficiency slow-release fertilizer promotes the melon to absorb and utilize different nutrients, and promotes the efficient cultivation.

The invention provides an energy storage system, and the energy storage system comprises at least one energy storage unit cluster and a centralized monitoring system of the energy storage unit cluster, wherein the energy storage unit cluster is formed by connecting at least two energy storage modules in series; one energy storage module comprises an energy storage element group and a switch bridge arm, the switch bridge arm is composed of a master control switch and a bypass switch, one end of the master control switch is connected with the energy storage element group, the other end of the master control switch serves as a first input/output end of the energy storage module, one end of the bypass switch is connected with the first input/output end, and the other end of the bypass switch is connected with the second input/output end of the energy storage module; the energy storage unit cluster is coupled to the direct current bus through the DC/DC converter; and the centralized monitoring system is connected with the energy storage unit cluster through a control bus and is used for controlling the on or off of the main control switch and the bypass switch in any energy storage module in the energy storage unit cluster. According to the invention, the management flexibility of the energy storage system can be improved, the stability of the energy storage system is improved, and the applicability is higher.

The invention discloses an electric vehicle grid-connected optimization scheduling method based on a two-stage preprocessing strategy. The method comprises steps: S1, a power grid model and real-timedata are acquired; S2, a two-stage electric vehicle charging and discharging optimization scheduling model is established; S3, a first-stage model is preprocessed; S4, a weight adaptive particle swarmalgorithm is adopted to calculate the active power output and a unit combination of the first-stage model; S5, the output of the first-stage model is used as input of a second-stage model; S6, the number of charging and discharging electric vehicles optimally burdened by each node in a distribution network layer under network security constraints is considered; S7, whether the corresponding nodevoltage exceeds a limit is judged; S8, the sensitivity of the reactive power change of the node to the voltage is calculated, and network security constraint conditions are added; and S9, optimizationscheduling is ended. Peak clipping and valley filling can be realized, safety and economic hazards brought by a large scale of electric vehicles accessed to the power grid are reduced, the power generation cost of a generator unit is reduced, and the distribution network loss is reduced.