10results about How to "Continuous control" patented technology

The invention discloses a switching loss optimization control method and system of an energy storage DC converter. Comprising the following steps: firstly, acquiring battery side voltage / current and bus side voltage / current of the energy storage direct current converter; calculating according to the battery side voltage and the bus side voltage to obtain the voltage ratio of the two sides of the energy storage direct current converter; then, control power is obtained through calculation according to the battery side voltage / current and the bus side voltage / current; then, determining the working mode of the dual-active bridge circuit by using the control power of the energy storage direct-current converter; and finally, according to the working mode of the dual-active bridge circuit, the actual power of the dual-active bridge circuit is adjusted, and the switching loss optimization of the energy storage DC converter is completed. When the battery side voltage, the bus side voltage and the load power of the circuit are changed, the control power of the controller can be continuously changed, smooth transition is realized among all working modes, the output signal and the power gain are basically linear, and the dynamic response speed can be improved.

The invention relates to the technical field of toilet paper production, in particular to staggered composite printing paper and a production process thereof, the staggered composite printing paper comprises a surface layer part, a core layer part and a bottom layer part which are sequentially distributed from top to bottom, and the staggered composite printing paper is characterized in that the surface layer part comprises surface layer convex parts and surface layer concave parts which are distributed in an array staggered manner; the bottom layer part comprises bottom layer convex parts and bottom layer concave parts which are distributed in an array staggered manner; the positions of the bottom layer convex parts and the bottom layer concave parts correspond to the positions of the surface layer convex parts and the surface layer concave parts; the core layer part comprises core layer convex parts and core layer concave parts which are distributed in an array staggered mode, the core layer convex parts are matched with the surface layer convex parts, and the core layer concave parts are matched with the bottom layer concave parts; the surface layer part, the core layer part and the bottom layer part are combined to form a cavity structure, the thickness and the filling power of the toilet paper are remarkably improved, and the connection strength of the toilet paper is enhanced due to the existence of the core layer part.

The invention discloses a precise temperature control and energy comprehensive management device for an injection molding machine, the device is arranged on a machine barrel of the injection molding machine, the device comprises a temperature difference power generation system, a semiconductor refrigeration system and a cooling system, the temperature difference power generation system comprises a plurality of temperature difference power generation sheets and is used for controlling the temperature of a high-temperature heating section of the machine barrel and absorbing waste heat for power generation; the plurality of thermoelectric power generation sheets are connected in series to the voltage stabilizing circuit to supply power to a PLC of the injection molding machine; the semiconductor refrigeration system comprises a plurality of semiconductor refrigeration sheets and is used for controlling the temperature of the low-temperature heating section of the machine barrel; the cooling system is used for maintaining the constant temperature difference between the cold and hot ends of the thermoelectric power generation sheet and improving the refrigeration efficiency of the semiconductor refrigeration sheet. The device has the advantages of being simple in structure, safe, reliable, long in service life, free of moving parts, free of noise, environmentally friendly and the like, continuous and precise control over the temperature of the high-temperature section of the machine barrel can be achieved by controlling the heat dissipating capacity of the cold end of the thermoelectric power generation piece, and the temperature of the low-temperature section of the machine barrel can be precisely controlled by changing the magnitude of current supplied to the semiconductor chilling plate.

The utility model discloses injection molding machine waste gas collecting device, including main body frame, shaking mechanism, flow regulating mechanism and adjusting auxiliary mechanism, the shaking mechanism includes processing jar, drive motor, support axle, connecting hose and adding pipe, the flow regulating mechanism includes adjusting pipe, inner rotary frame, threaded rod, thread bush, moving frame, layer whirlpool board and inner fixed frame, make processing jar do regular shaking movement through drive motor drive support axle, effectively solved the problem of uneven distribution of waste gas in traditional device, and this dynamic shaking design promotes the full mixing contact of waste gas and auxiliary agent, eliminates the airflow dead angle and stratification phenomenon in processing jar, adopts the accurate transmission design of threaded rod and thread bush, drives moving frame to do linear motion through the rotation of inner rotary frame, makes the clearance between layer whirlpool board and inner fixed frame accurate and adjustable, and this design solves the problem that the waste gas flow of traditional device is difficult to accurately regulate.

The utility model discloses a convenient water flux tester which comprises a first conducting hose, a peristaltic pump, a second conducting hose, a pressure gauge, a third conducting hose and a filter, one end of the first conducting hose extends into liquid to be tested, and the other end of the first conducting hose is connected with an inlet of the peristaltic pump; an outlet of the peristaltic pump is connected with a second conducting hose, and the other end of the second conducting hose is connected with a pressure gauge; the other end of the pressure gauge is connected with a third conducting hose which is connected with a filter; and a membrane to be detected is placed in the filter. According to the utility model, the water fluxes of different membrane materials can be conveniently and quickly tested, an accurate water flux value can be obtained through simple calculation, and the water flux testing device has the advantages of convenience in operation, easiness in carrying, wide application range and the like.

The application discloses a kind of refining ladle conveying pulse positioning device, it is related to refining ladle conveying technical field, including car body base, the bottom of car body base is equipped with walking part, the bottom of car body base is equipped with cable drum mechanism, pulse positioning mechanism is equipped on cable drum mechanism, rotating ring mechanism and mounting plate mechanism are equipped on car body base, a plurality of hydraulic adjusting mechanisms are equipped between rotating ring mechanism and mounting plate mechanism, the upper surface of mounting plate mechanism is fixedly connected with two symmetrical side column clamping plate mechanisms, side edge clamping column mechanism is equipped on mounting plate mechanism, linkage positioning mechanism is equipped between side column clamping plate mechanism and side edge clamping column mechanism, the cable of the cable drum mechanism can be wound by being equipped with, and continuous position feedback and control output can be realized by cooperating pulse positioning mechanism, the accurate positioning of car body base is guaranteed, rotating ring mechanism can drive hydraulic adjusting mechanism to rotate and change position, and the efficiency of refining ladle conveying is improved.

The application discloses a kind of privacy calculation arrangement methods, systems, equipment and medium based on dynamic trust, it is related to data security technical field.The method comprises: receiving data processing request, and collecting context data including user trust, environmental risk and data sensitivity;Dynamic trust score is calculated based on context data, and target privacy calculation technology is dynamically selected according to score;Task is dispatched based on selected technology and guard agent is deployed in computing container;Periodically collect running state data as heartbeat to verify by guard agent, if verification fails, key interruption and memory erasure are triggered to fuse task;After completion of calculation, result and access control policy are encapsulated as security capsule;In response to capsule opening request, verify that terminal environment meets strategy, then decrypt rendering result in memory.The application realizes dynamic control from computing request to result use whole life cycle, solves the problem of authorized control.

The invention relates to the technical field of green prevention and control of agricultural pests, in particular to a green prevention and control method for rice pests based on combination of multiple spiders and application of the green prevention and control method for rice pests based on combination of multiple spiders. Placing density and position of the spiders: after the rice is transplanted, uniformly putting the combination of the various spiders into the rice field according to the putting density; and ecological environment optimization: arranging shelters for inhabiting and avoiding of the spiders in the rice field to promote survival and reproduction of the spiders. According to the method, multiple spiders with ecological niche complementarity are screened, a natural enemy community which can be stably colonized in a rice field and has a synergistic effect is constructed, continuous and efficient control over main pests of rice is achieved, and finally the purposes of completely replacing chemical pesticides, protecting the ecological environment and producing green rice are achieved.

The application discloses a kind of refrigeration air conditioner ammonia fluorine combined system and use method, belong to refrigeration air conditioning technical field, including ammonia refrigeration unit one, ammonia refrigeration unit two, circulating bucket one, circulating bucket two, high-pressure liquid accumulator, plate heat exchanger, workshop air conditioner;Ammonia refrigeration unit one suction end and circulating bucket one are communicated, the ammonia refrigeration unit two suction end and the connecting end between ammonia refrigeration unit one and circulating bucket one are communicated, the liquid supply end of circulating bucket one and the liquid inlet end of plate heat exchanger are communicated, back gas end and plate heat exchanger back gas end are communicated, the liquid supply end of circulating bucket two and the liquid inlet end of circulating bucket one are communicated, the liquid supply end of high-pressure liquid accumulator and the connecting end between circulating bucket two and circulating bucket one are communicated, closed circulation pipeline is formed between plate heat exchanger and workshop air conditioner.Can make workshop refrigeration cooling effect promotion, temperature stability reaches standard, energy consumption reduces;System operation safety, avoid ammonia liquid to the harm of personnel.

The present invention discloses a pre-filter device for an aluminum heat exchange tubular desalination system. The pre-filter device is arranged at the inlet end of the cold source side of the low-temperature multi-effect desalination system. The pre-filter device includes a plurality of pre-filter units. The plurality of pre-filter units are arranged in a mother pipe split form. The pre-filter units include a seawater booster pump, a front-end pressure transmitter, an ion trap, a rear-end pressure transmitter, a filter, a VSD logic control system and a backwash device. The backwash device includes a backwash buffer tank, a backwash pump and a backwash filter. The purpose of the present invention is to provide a pre-filter device for an aluminum heat exchange tubular desalination system, which can reduce the concentration of corrosive metal ions in seawater to a negligible level, effectively protect aluminum alloy heat exchange tubes from being attacked by such ions to generate dynamic current corrosion, ensure the safe and stable operation of the desalination device, and reduce the frequency of disassembly and plugging of the heat exchange tube bundle of the effect evaporator.