138results about How to "Avoid frequent adjustments" patented technology

The invention discloses a control method and a device of air-conditioning equipment and an air conditioning system. The control method comprises the following steps of: step S101, carrying out comparison on the water-outlet temperature of an evaporator and set object temperature, and determining the object load value of the compressor of the air-conditioning equipment; step S103, determining the variation of the load value of the air-conditioning equipment according to the object load value and the current load value of the compressor of the air-conditioning equipment; and step S105, adjusting the current load value of the compressor of the air-conditioning equipment according to the determined variation value. According to the invention, an object load is obtained through collecting the backwater temperature of an evaporator, the load of the compressor is adjusted according to the object load, and more accurate reference can be used for rationally adjusting a working mode of an air conditioner compressor; and the frequent adjustment of the compressor is avoided, the display of the system performance is more stable, and the service life of the compressor is guaranteed.

The invention discloses a renewable energy source cooling, heating and power microgrid system and a control method. The renewable energy source cooling, heating and power microgrid system comprises a power module and a cooling/heating module. According to the power module, a solar power generation system is sequentially connected with a DC/DC converter and a DC/AC converter in series and then connected with an AC bus, a wind power generation system is sequentially connected with an AC/DC converter and a DC/AC converter and then connected with the AC bus, a gas internal combustion generation system is directly connected with the AC bus, a storage battery pack is connected with the AC bus through a bi-directional DC/AC converter, variable power electricity storage hot water tanks are connected with the AC bus, and the AC bus is connected with a power distribution network through a PCC. The renewable energy source cooling, heating and power microgrid system and the control method have the advantages that clean renewable energy sources such as methane, wind energy and solar energy are adopted as energy sources of a cooling, heating and power microgrid, no pollution is caused to the environment, operation cost is very low, and the application range is wide; by the adoption of a multi-microsource energy supply mode, the problem of capacity allocation redundancy of a single energy supply system can be solved.

The invention discloses a fingerprint recognition method and a mobile terminal. The method is applied to a mobile terminal with a touch screen. The method comprises the steps that according to operation of a user on the touch screen, a fingerprint recognition region on the touch screen is determined; fingerprint data is collected in the fingerprint recognition region, and verification is conducted on the collected fingerprint data. According to the fingerprint recognition method and the mobile terminal, based on the operation of the user on the touch screen, the fingerprint recognition region is dynamically adjusted, it is unnecessary for the user to adjust the holding posture, the problem that a finger touching region deviates from the fingerprint recognition region is avoided, and the usability and the success rate of fingerprint recognition are improved.

The invention relates to a system loading dynamic regulation method of a radio-frequency remote system and a system loading dynamic regulation device of the radio-frequency remote system. A central processing unit (CPU) monitors system loading of a Baseband Process (BP) one board i every period T1, and when the fact that the occupancy rate of the CPU of the BP one board i is bigger than or equal to preset threshold N is monitored, the CPU continuously monitors the system loading of the BP one board i in M1 period T1. When the occupancy rate of the monitored CUP is continuously bigger than or equal to the preset threshold N in M1 period T1, the base band resource transport process is started; the device comprises a system loading monitoring device, a continuous monitoring device and a base band resource transport device. The invention further provides the system loading dynamic regulation method. When a Baseband Unit monitors the load condition of the BP at a regular time, load which is rushed to cause the users not to be inserted carrier frequency of the BP is adjusted to other BP with lower load, so that the problem that the users cannot normally insert caused by the load rushing is solved.

The embodiment of the invention discloses a measurement method, terminal equipment and network equipment, and the method comprises the steps: receiving measurement adjustment related parameters configured by the network equipment; and adjusting a radio resource management RRM measurement mode according to the measurement adjustment related parameters. Through the embodiment of the invention, effective switching adjustment among different RRM measurement modes can be realized, and the ping-pong effect of measurement is avoided while the power consumption of the terminal equipment is saved, so that the terminal equipment is prevented from frequently adjusting the configuration of RRM measurement, and the configuration flexibility of the network equipment is kept.

The invention provides a control circuit of a low-voltage reactive compensation device. The control circuit of the low-voltage reactive compensation device comprises a control module, a power supply module, an HCI (Human-Computer Interaction) module, a collection module, a data storage module, a communication module, a switching control circuit, a zero passage switching module and a protection alarm module, wherein the control module is respectively connected with the power supply module, the HCI module, the collection module, the data storage module, the communication module, the switching control circuit and the protection alarm module, and the switching control circuit is sequentially connected with the zero passage switching module and a capacitor. A distribution network system is partitioned according to a voltage value and a reactive power value, the existing nine-zone diagram is improved, and a reactive compensation device can be compensated by a controller according to the improved nine-zone diagram. According to the control circuit disclosed by the invention, the problem that frequent switching is easy to cause in the traditional nine-zone diagram control is overcome, and the control circuit has the advantages that the cost is low, the application is flexible, and the fast and accurate switching of the capacitor can be realized.

The invention discloses a charging method and an electronic device. The charging method is applied to an electronic device which includes an electric storage unit. The method includes: at a first moment, when a charging device which is connected with the electronic device charges the electric storage unit, a first voltage value at the two ends of the electric storage unit is obtained through detection; based on the first voltage value, a first parameter value related with a charging current of the electric storage unit is determined; whether the first parameter value satisfies a preset condition is judged; when the first parameter value satisfies the preset condition, the value of the charging current is adjusted form a first current value to a second current value so that a second power value which is obtained on the basis of the second current value and a second voltage value of the electric storage unit corresponding to the second current value is equal to a preset power threshold.

The invention provides an automatic energy-saving method of an asynchronous motor. The method includes the following steps that a detected three-phase output current is processed, and an active current and a reactive current generated when the motor runs are obtained; the current voltage drop coefficient and a voltage regulation coefficient target value are obtained; automatic energy-saving voltage regulating control is performed; according to the current voltage drop coefficient and the voltage regulation coefficient target value, voltage regulation is performed. The automatic energy-saving method of the asynchronous motor is applicable to occasions where the motor drives light loads to run for a long time, a specific load frequency characteristic curve does not need to be given, and only a V/f reference curve based on the principle of constant magnetic flux is needed. With the method, a total output current and an exciting current can be reduced by automatically regulating an output voltage, the motor is finally made to work near an optimal point, and loss of a system is effectively reduced; the method has strong adaptive capacity for different loads at different frequencies, and energy-saving control can be achieved better.

The invention discloses a primary frequency modulation controller, control method and system of a thermal power unit. The primary frequency modulation controller comprises a drooping type frequency response controller and a fuzzy controller; the drooping type frequency response controller is arranged on the coordination control side of the thermal power unit, an input of the drooping type frequency response controller is a system frequency difference value of the thermal power unit, and an output of the drooping type frequency response controller is an active adjusting instruction of the coordination control side of the thermal power unit; the fuzzy controller is arranged on the digital electro-hydraulic side of the thermal power unit, an input of the fuzzy controller is the system frequency difference value of the thermal power unit, and an output of the fuzzy controller is an action quantity of an adjusting valve; and the drooping type frequency response controller and the fuzzy controller are combined to carry out frequency difference response control on the thermal power unit. The problem in that the thermal power unit daily participates in small system frequency disturbance adjustment and quick response after large frequency disturbance can be solved; and the problem of wear caused by frequent adjustment of a DEH control system of the thermal power unit can be solved.

The embodiment of the invention provides a method for adjusting screen brightness. The method is applied to a mobile terminal. The method comprises the following steps of when the screen of the mobile terminal is illuminated, detecting the brightness of outside environment of the mobile terminal; according to the brightness of the outside environment, obtaining a first screen brightness and at least one second screen brightness, wherein the first screen brightness is a standard screen brightness corresponding to the brightness of the outside environment, the second screen brightness is a screen brightness corresponding to the brightness of the outside environment after the adjusting by a user of the mobile terminal is finished each time, the time corresponding to the second screen brightness is the time after the adjusting by the user of the mobile terminal is finished each time, and the time corresponding to each obtained second screen brightness is more approximated to the current time in comparison with the time corresponding to the unobtained second screen brightness; according to the first screen brightness and the second screen brightness, calculating a third screen brightness; adjusting the screen brightness into the third screen brightness. The embodiment of the invention provides the mobile terminal. The method provided by the invention has the advantage that the frequent adjusting of the screen brightness by the user is not needed.

The invention discloses a balanced display method for a flat-plate X-ray image. The method includes the following steps of firstly, inputting an original image, segmenting the original image into a plurality of regions according to the differences of pixel point grey values so as to generate a mask image; secondly, reading in the original image and the mask image, sequentially conducting noise estimation, gain estimation and local contrast ratio estimation, and synthesizing the estimation results into algorithm parameters; thirdly, conducting Laplacian pyramid decomposition on the original image to obtain a residual error image, sequentially conducting gamma conversion and histogram conversion on the residual error image according to the algorithm parameters obtained in the second step, and then conducting Laplacian pyramid composition to generate an intermediate image; fourthly, constructing an adjustment curve, mapping the intermediate image into a result image according to the adjustment curve, calculating the optimized window width value and the optimized window position value, and displaying the result image on a display. By means of the balanced display method, target characteristics, at different scales, in the image can be effectively enhanced, and automatic optimal balanced display is achieved for the image.

The invention provides a method for calculating the fault parameter sensitivity of a power distribution network based on fault incidence matrixes. The method comprises the following steps: in view ofa connecting relationship between a power distribution network branch and a load node, analyzing an influence type of a branch component fault on the load node, and constructing three types of fault correlation matrixes; creating a fault parameter vector, a node load demand vector and a node power user number vector, and performing matrix algebra operation on the three types of fault correlation matrixes and the fault parameter vector, the node load demand vector and the node power user number vector to obtain a reliability index calculation formula of the power distribution network; and figuring out the partial derivation of different fault parameters of the reliability index calculation formula of the power distribution network to obtain the sensitivity of the different fault parameterson the reliability index of the power distribution network. By adoption of the method provided by the invention, the frequent adjustment of the fault parameters and the repeated calculation of the reliability index in a reliability analysis process can be avoided, and the calculation efficiency can be improved.

The invention relates to a method for producing a high concentration composite water purifying agent with multi-ions of aluminium, zinc and magnesian. The method is characterized by comprising the following steps of: adding a circulation filtrate and a modifying agent into aluminium alloy sludge containing multiple metals, mixing them fully, and conducting hydraulic filtration through a filter plate hydraulic device so as to form a dry sludge filter cake, which is then delivered to a pulverizer for pulverizing, thus obtaining dry sludge; adding an acid into the dry sludge; adjusting the pH value by controlling the adding amount of the sludge; conducting stirring for reaction continuously at a normal temperature to make the dry sludge dissolved completely, thus obtaining a composite water purifying agent (A) with multi-ions of aluminium, zinc and magnesian; adding a heavy metal trapping agent into the obtained composite water purifying agent (A) with multi-ions of aluminium, zinc and magnesian, continuing to stir the agent and pouring it to a sedimentation basin, then carrying out solid-liquid separation with a filter press. Thus, the liquid phase is a composite water purifying agent (B) with multi-ions of aluminium, zinc and magnesian, while the solid phase is a residue of insoluble heavy metal complexes and insoluble substances. The method of the invention effectively solves the problem of treating the sludge, creates remarkable economic benefits, and eliminates the risk of environmental pollution caused by the heavy metal sludge.

The invention relates to a method for preparing a multi-copolymerization diacid water purifying agent from aluminum alloy sludge, which is characterized by comprising the following production steps of: preparing mother liquor A, mother liquor B, mother liquor C, basifier K, polyion mono-acid system M and a multiple diacid system N by treating the sludge; adding the multiple diacid system N, zinc chloride, magnesium chloride and the basifier K into a reaction kettle f; and rapidly stirring and regulating a Ph value to obtain the product, i.e. the multi-copolymerization diacid water purifying agent PAMZ. Intermediate products and final products in the treatment process of the multi-copolymerization diacid water purifying agent PAMZ obtained by copolymerization can be used as sewage treatment water purifying agents for treating the sewage. Due to the adoption of the method, the difficult problem of treating the aluminium alloy sludge is effectively solved, the considerable economic benefits are created and the pollution risk of heavy metal sludge on the environment is eliminated.

The invention provides a short term load forecasting-based on-load capacity regulating method for a distribution transformer; the distribution transformer is a self-adaption load-type distribution transformer or an on-load capacity regulating distribution transformer. The method comprises the following steps: performing real-time monitoring on a load condition and performing record keeping; performing short term load forecasting, and further generating a state level; determining the on-load capacity regulating strategy of the distribution transformer and performing related operations. According to the short term load forecasting-based on-load capacity regulating method for the distribution transformer, provided by the invention, on the basis of the self-adaption short term load forecasting, the short term load forecasting of a distribution room is considered during the on-load capacity regulating process of the distribution transformer, so that the on-load capacity regulating control of the distribution transformer is optimized, frequent capacity regulating caused by load fluctuation of the distribution room is reduced, the cost performance of a capacity regulating switch is improved, the service life of the capacity regulating switch is prolonged, and the shock to a distribution network is reduced.

The invention relates to a cold and hot storage fresh air cleaning and adjusting temperature combined machine, characterized in that it comprises all-closed shell and hot storage heat exchanger, air temperature sensor, filter material layer, catalyzing or absorbing material layer, fanner and feed-forward control program, which are installed in turn on the air flow direction; the hot storage heat exchanger comprises refrigerant coil, water storing tank and air flow pipe; the refrigerant coil is set in the water storing tank and inlet-outlet pipes are welt with the wall of water storing tank; electromagnetic valve, thermostatic expansion valve or capillary are set on the inlet pipe of refrigerant out of the water storing tank; the shell of water storing tank is welt with end covers at two sides to form closed tank space; said end covers of water storing tank is also used as pipe plates of air pipes and air flow pipes are welt with pipe plates; liquid irrigation hole, liquid discharging hole and temperature measuring hole are set on the shell of water storing tank; the water temperature sensor is set in the temperature measuring hole.

The invention provides an exposure method and device, shooting equipment, a movable platform and a storage medium, and the exposure method comprises the steps that first shooting equipment obtains first environment brightness information sensed by second shooting equipment, wherein the field angle of the second shooting equipment is greater than the field angle of the first shooting equipment and the first shooting equipment and the second shooting equipment are used for shooting the same environment; the first shooting equipment determines target environment brightness information corresponding to the current field angle of the first shooting equipment according to the first environment brightness information, and determines an exposure parameter value corresponding to the first shooting equipment according to the target environment brightness information. Due to the fact that the environment brightness information sensed by the second shooting equipment with the large field angle can better reflect the real brightness condition of the environment in a wider range, the exposure parameters of the first shooting equipment are adjusted according to the real brightness condition, frequent adjustment of the exposure parameters can be avoided, and meanwhile the accuracy of exposure parameter adjustment is guaranteed.

The invention relates to a washdown pedestal pan. The washdown pedestal pan comprises a body, a mounting support, an electromagnetic valve, a connecting water pipe, a flushing triplet connector and a flushing jet device. The flushing triplet connector comprises a water inlet pipe, an upper flushing water outlet pipe and a lower flushing water outlet pipe. The flushing jet device comprises a connecting pipe and a shower nozzle. A mounting opening is formed in the upper flushing water outlet pipe, an upper flushing flow limiting choke plug is arranged at the mounting opening, and the upper flushing flow limiting choke plug can move relative to the mounting opening to enter the upper flushing water outlet pipe so as to adjust the water outlet amount of the upper flushing water outlet pipe. A spherical mounting hole is formed in the front portion of a connecting pipe water outlet through hole, the shower nozzle is a spherical shower nozzle, and the spherical shower nozzle is rotatably mounted at the spherical mounting hole in the front portion of the connecting pipe water outlet through hole. A compression cap is arranged at the front end of the connecting pipe, the compression cap is provided with a compression cap through hole, the compression cap is pressed on the spherical shower nozzle, and the spherical shower nozzle stretches out from the compression cap through hole. The washdown pedestal pan has the advantages that the flushing water outlet amount of the upper flushing water outlet pipe is adjustable, the jet angle of the shower nozzle is adjustable and flushing is clean.

The invention relates to the technical field of automatic voltage control in an electric system, in particular to a relaxation reactive voltage optimizing system based on province-district coordination and a working method of the relaxation reactive voltage optimizing system. At the present stage, local areas are administered by a dispatcher control center, the voltage regulation capacity can not be used sufficiently, and even voltage quality is affected because the regulation effects among the areas are opposite. The relaxation reactive voltage optimizing system comprises an obtaining module, a calculating module, a sending module, a processing module and a receiving module, wherein the obtaining module is used for obtaining a power grid model and real-time data; the calculating module is used for performing state estimation on collected data and performing relaxation voltage reactive power optimization calculation to obtain a coordination strategy; the sending module is used for sending the coordination strategy to a district dispatcher; according to the processing module, the coordination strategy is received by the district dispatcher and then processed to control actions, and if a province dispatcher is needed for matching, the upper and lower bounds of expected voltage are reported; according to the receiving module, a voltage coordinating request of the district dispatcher is received by the province dispatcher and serves as the optimization constraint of next circulation. According to the technical scheme, on the premise of ensuring qualified voltage, regulating frequency of a discrete device is reduced, network loss is effectively reduced, and convergence reliability of an optimization algorithm is improved.

The invention discloses an optimization-close precise aerating method for sewage treatment. According to change of concentrations of dissolved oxygen online, aeration of biopools can be more preciselycontrolled by adjusting the aerating amounts of the biopools by adjusting the opening of an electric valve and the pressure of an air general pipe and adjusting the upper and lower limit values in adissolved oxygen concentration change area and the upper and lower limit values of the air general pipe in an optimization-close manner.

The invention discloses a conveying cart device. The conveying cart device comprises a machine frame (3), wherein the bottom of the machine frame (3) is fixedly connected with a plurality of idler wheels (4). The conveying cart device further comprises a rotating support (2), wherein the machine frame (3) is further provided with a bearing portion (31), the rotating support (2) is connected with the machine frame (3) through the bearing portion (31), the rotating support (2) is located above the machine frame (3), and the rotating support (2) can rotate along with the bearing portion (31). The conveying cart device is simple in structure, and beneficial for reducing labor intensity of a user, improving material loading and unloading efficiency, and reducing the requirement for space in a moving process.

The invention discloses a geothermal heating control method and system. The method comprises the steps that the outdoor temperature is obtained, and the outdoor comprehensive temperature is calculatedaccording to the outdoor temperature; the heating heat load ratio is calculated according to the outdoor comprehensive temperature, the indoor heating design temperature and the heating outdoor calculation temperature; according to the heating heat load ratio and the heating ground unit area heat dissipating capacity in the design state, the actually-needed heating ground unit area heat dissipating capacity after the first preset time is calculated; the water supply-return average temperature is determined according to the relation between the heating ground unit area heat dissipating capacity and the water supply-return average temperature based on the actually-needed heating ground unit area heat dissipating capacity; the water supply temperature is calculated according to the water supply-return average temperature and the water supply-return temperature difference; and the water supply temperature of heating equipment is controlled according to the water supply temperature after the second preset time, and the water supply flow of the heating equipment is calculated and controlled according to the heating heat load. According to the geothermal heating control method and system, the indoor temperature can be kept basically constant, and energy waste caused by too high indoor temperature is avoided.