513results about How to "Avoid imbalance" patented technology

Resources are assigned in units of resource blocks each composed of one or more subcarriers, inter-cell interference adjustment control information is notified to each other among base stations, a transmit power limitation on each of the resource blocks in a cell is decided based on the inter-cell interference adjustment control information; and the decision of the transmit power limitation is changed sequentially beginning at a resource block having a transmit power limitation different from the transmit power limitation on an adjacent resource block.

The invention provides an intelligent device failure diagnosis method based on a support vector machine. The method includes the steps that preprocessing operation is conducted on device data; a failure diagnosis case knowledge base is built; failure diagnosis is conducted on the support vector machine; the failure information is obtained, and troubleshooting guide is conducted. By means of the intelligent device failure diagnosis method based on the support vector machine, the failure feature of a device is highlighted to the maximum degree, the situations that the device data are incomplete and imprecise are reduced, the method provides the possibility for building a precise and reliable failure diagnosis model, the problem of aging of the diagnosis model along with the runtime of the device is solved, the misdiagnosis rate of the failure diagnosis model is reduced, and the correct rate and speed of the device failure diagnosis are increased to the maximum degree.

The invention discloses an SVM classification model-based equipment fault diagnosing method. The method comprises the following steps: performing a preprocessing operation on equipment data; constructing a fault diagnosis case knowledge base; performing fault diagnosis on a support vector machine on the basis of an SVM classification model; acquiring fault information and performing maintenance guide. According to the support vector machine-based intelligent equipment fault diagnosis method, the fault features of equipment are highlighted to the maximum degree; the situations that the equipment data are incomplete and inaccurate are reduced; the possibility is provided for constructing an accurate and reliable fault diagnosis model; the problem that the diagnosis model ages along with the operating time of the equipment is solved; the misdiagnosis rate of the fault diagnosis is reduced; the accuracy and the speed of the equipment fault diagnosis are greatly improved.

The invention provides a secondary battery system that allows a high overload operation regardless of discharging condition during a steady operation, and an operating method thereof. The secondary battery system comprises first tanks 31, 32 for reserving electrolytes required for a steady operation, and second tanks 33, 34 for reserving electrolytes required for an emergency operation. Valves 41–48 are opened and closed for allowing selective switching between the electrolytes in the first tanks 31, 32 and the electrolytes in the second tanks 33, 34 to circulate the selected electrolytes through a cell stack 100. The electrolytes reserved in the second tanks 33, 34 are electrolytes having a proportion of a quantity of active material produced in a charging reaction to a total quantity of active material of not less than 50%.

A reciprocating piston engine includes a rotor housing for transferring torque to an engine output drive; a contoured guide element in the rotor housing, having a closed, curvilinearly contoured shape, around which the rotor housing is rotatable; at least one compression unit in the rotor housing, each unit including a piston and a cylinder, with the piston having a straight line of action in a plane perpendicular to the axis of rotation of the rotor housing; a connecting rod, rigidly coupled to the piston, movable along a path determined by the contoured guide element, for transferring controlled movement specified by the contoured guide element to the piston; and a guide part, joined to the connecting rod, and movable along a separate guide in the rotor housing, with the connecting rod, the piston, and the guide part each performing a single stroke along a straight line in the rotor housing.

Object of the invention is to provide an improved technique for winding a wire to form an armature winding between a commutator and an armature. Representative motor is provided with a motor with an armature having slots, a commutator, segments on the commutator and an armature winding having a first and a second unit windings. The first unit winding is defined by a first to a third segments, a coil of a first group and a coil of a second group in series, and a first equalizing wire. The second unit winding of the motor is defined by a third to a fifth segments, a coil of a first group and a coil of a second group for the second unit winding, and a second equalizing wire. The coils are disposed in series with this order and in a position shifted from the coils of the first and the second groups for the first unit winding. The third segment defines an endpoint of the first unit winding and also defines a starting point of the second unit winding. With such construction, the wire for forming the armature winding can be wound between the commutator and the armature in a balanced manner.

The invention provides an intelligent pesticide application unmanned helicopter and belongs to the technical field of agriculture. The unmanned helicopter comprises a helicopter body frame, wherein the helicopter body frame is provided with a rotary wing flight system and a undercarriage component which are controlled by a flight control main engine; the communication end of the flight control main engine is communicated with a global position system (GPS), the master control output end of the flight control main engine is connected with the controlled end of the rotary wing flight system and is used for sending a navigation control signal to the flight system according to a contemplated route and real-time position information transmitted from the GPS; the central part below the helicopter body frame is also provided with a pesticide application device consisting of a pesticide chest, a liquid pump, a spray beam and a spray nozzle; the liquid outlet of the pesticide chest is communicated with the spray beam with the spray nozzle through a liquid infusion pipeline and the liquid pump; the flight control main engine also comprises an auxiliary control output end; and the auxiliary control output end is connected with the controlled end of the liquid pump and is used for sending a pesticide application control signal to the liquid pump according to the preset pesticide application sites and the real-time position information transmitted from the GPS. The unmanned helicopter can realize automatic navigation flight and can automatically control the pesticide application operation.

An optical head enabling a size reduction so that the optical head can be stored in an opening of a cartridge for a disk and enabling an improvement in the dynamic performance as the density and transfer rate are increased is provided. In a two-axis actuator optical head capable of driving an objective lens (102) along the Z axis in the focus direction, that is, vertical to the surface of the optical disk and along the X axis in the tracking direction, that is, the radial direction of the optical disk. The objective lens (102) is disposed in the center of the coil bobbin (101), a focusing coil (103) is disposed around the coil bobbin (101) and is wound around the X axis, and tracking coils (104a and 104b) are disposed on both ends of the coil bobbin (101) in the X axis direction and are wound around the X axis. Pairs of magnets (107a to 107d) are disposed plane-symmetrically with the Z-Y plane including the Z axis aligned with the optical axis of the objective lens (102) and the Y axis and with the Z-X plane including the Z axis and the X axis.

The invention discloses an all vanadium redox flow battery management method and a system which are applied to scale energy storage. The system comprises an energy management system used for sending a charge instruction, issuing a charge power value PCharge, sending a discharge instruction and issuing a discharge power value PDischarge, a plurality of all vanadium redox flow battery subunits, a battery management system connected with the all vanadium redox flow battery subunits and used for detecting working states of the all vanadium redox flow battery subunits, a plurality of energy storage inverters connected with the all vanadium redox flow battery subunits respectively, and an in-situ monitoring system connected with the energy management system, the energy storage inverters and the battery management system respectively and comprising a judgment unit, a computing unit and a control unit. According to the method and the system, the service life of an all vanadium redox flow battery is prolonged, and charge states, the use frequency and the running time of the all vanadium redox flow battery subunits can be kept consistent conveniently.

The invention relates to a test device and a test method for delivery capacity of a steam security valve based on system dryness control. The test device is mainly composed of a concurrent boiler, a steam separator, an energy storage and a test vessel through connecting in sequence. The test method for the delivery capacity of the steam security valve includes: regulating the opening degree of a regulating valve on a steam header to stabilize the steam pressure at a boiler outlet to avoid the unbalance between the steam supply amount of the boiler and the pressurization desired steam amount of the energy storage when testing different sizes of security valves; regulating the opening degree of a regulating valve between the energy storage and the test vessel to realize the stable discharge of the measured steam security valve; when testing the delivery capacity of the security valve, enabling the boiler to continuously supply gas for the energy storage system under pressure control so as to maintain enough pressure for the energy storage in testing, and accordingly the energy storage volume is reduced, and the device constructing cost is lowered; regulating the load of the concurrent boiler to change the overheat degree of the steam at the boiler outlet so as to meet the steam quality requirement in testing the delivery capacity. The test device and the test method have advantages of strong operating flexibility, stable system running and high testing precision.

A washing machine which ensures good cleaning performance and drying performance, prevents the rotational unbalance of a washing tank during drying, and is easy to use. The washing machine comprises a housing (1), a washing tank disposed in a water tank (2), an inclining means for inclining the washing tank with an inclining supporting point (20a) as a supporting point, and a control means, the inclining angle of the washing tank being able to be changed according to the steps of charging clothes through taking out washed and dehydrated clothes. For example, a mechanism is provided that allows the clothes to be washed with the washing tank inclined, to be dehydrated with the washing tank erected, and to be taken out with the washing tank inclined. In addition, the volume of charged clothes is detected, and, based on the result of the detection, an inclination angle during a washing step is determined or a washing step is carried out in an erected state. Further, an inclination angle is changed during a washing step for stepwise inclining or for continuous reciprocating inclining.

An AC to DC converter is provided with: a rectifier circuit that rectifies an AC voltage generated by an AC voltage source; and a plurality of switching units that collectively receive an output voltage of the rectifier circuit through an inductor, and that are connected in series at an input side, each of the switching units having a semiconductor switching device, a diode, and a capacitor, and performing ON / OFF switching of the semiconductor switching device provided therein to step up a voltage received from the rectifier circuit, each of the switching units supplying the stepped-up voltage to the capacitor through the diode so that a resulting DC across the capacitor can be provided, as a DC output voltage of the switching unit, to a respective load to be connected to terminals of the capacitor.

The application discloses a DGA domain name detection model construction method and device, a server and a storage medium. The method includes the following steps of: acquiring a training data set, wherein the training data set includes DGA domain names and legal domain names; dividing the training data set into a plurality of training data sub-sets, wherein each training data sub-set includes atleast one DGA domain name and at least one legal domain name; training each training data sub-set by using a classification algorithm to obtain a plurality of detection sub-models; sequentially inputting test samples into each detection sub-model to obtain a prediction label set of the test samples; and fusing the prediction label set according to a decision strategy to obtain a final label of thetest samples. According to the DGA domain name detection model construction method provided by the embodiment of the application, the plurality of detection sub-models are obtained by grouping the training data set, the complete learning of the training data set can be realized, and the characteristics of actual DGA domain names can be embodied.

The invention discloses a method for measuring stator resistance of a motor. The method comprises the following steps that the angle of a current vector function is obtained; the motor is controlled to operate in a current closed-loop mode according to a first d-shaft current applied to a shaft d of the motor to obtain a first steady voltage command of the motor; the motor is controlled to operate in a current closed-loop mode according to a second d-shaft current applied to the shaft d to obtain a second steady voltage command of the motor; the stator resistance of the motor is calculated according to the first d-shaft current, the second d-shaft current, the first steady voltage command and the second steady voltage command. The method can accurately measure the stator resistance of the motor, measurement precision of the stator resistance is greatly improved, and therefore temperature detection precision of the motor can be improved. The invention further discloses a temperature detection method of the motor, a device for measuring the stator resistance of the motor, a temperature detection device of the motor and a motor control system with the device for measuring the stator resistance of the motor or the temperature detection device.

The invention provides a data center system and a management method for the data center system. In the data center system formed by a continuous communication network user, multiple data center sites, an instruction department and multiple site agency departments, when the user sends an application request to the instruction department, the instruction department estimates resources needed for running of the application requested by the user according to resources needed by applications of all types, electric power cost and bandwidth cost for running the application requested by the user at the data center sites are calculated according to resource usage conditions of all the data center sites and the estimated needed resources, the instruction department sends an application running request to the site agency department of the data center site with the lowest sum of the electric power cost and the bandwidth cost for running the application requested by the user, and the site agency department receiving the application running request allocates applications requested to run to a server managed by the site agency department. Thus, imbalance generated due to respective optimization of the electric power cost or the bandwidth cost is avoided, and the total operating cost of data centers is further reduced.

The invention relates to technology for organically cultivating and harvesting net house vegetable green sword bean, sweet corn and broccoli successively in one year. The technical scheme of the invention comprises the following steps: (1) land parcel selection; (2) construction technology for an organic vegetable net house; (3) selection of breeds and arrangement of crops for rotation; (4) fertilization technology; (5) control technology for pests and weeds; and (6) harvesting technology. The technology has the following advantages that: the research on the technology for organically cultivating and harvesting the green sword bean, the sweet corn and the broccoli successively in one year is carried out, dependable crops and high quality can be achieved, and the production standard for the organic vegetables is met; a microclimate principle of the pests is changed and disturbed on the ecological environment, so the occurrence and damage of the plant diseases and insect pests are reduced; excessive absorption for a certain element in the soil is reduced, so imbalance of soil nutrient is avoided; and the soil is also fully utilized so as to create higher yield.

A double-walled tank for the transport of fluid, the tank includes a rigid fluid impervious substantially cylindrical inner container concentrically nested within a rigid correspondingly substantially cylindrical outer container, the inner and outer containers having end walls sealing the containers. A grapple mount is mounted to an upper side of an outer surface of the outer container at a substantially medial position substantially medially along the outer container. A lower side of the outer container, opposite the upper side, is reinforced. The grapple mount may include a rigid plate mounted atop the upper side of the outer container at the medial position. An anti-surge baffle is mounted across, so as to extend between and into engagement with, an upper side of the inner container adjacent the baffle mount and a lower side of the inner container adjacent the reinforced lower side of the outer container.

A one-driving-multiple air conditioner indoor unit refrigerant flow distribution control method refers to heat-making operation control method of one-driving-multiple air conditioner consisting of one outdoor unit connected with plurality of indoor units. It contains stages of sharing stage for plurality of indoor units interchanging conduit temperature value; each indoor unit confirming mutual operating state comparing judging stage from already commutative conduit temperature value; regulating stage for regulating refrigerant flow rate. Indoor electromagnetism expansion valve regulates fed refrigerant flow rate according to each indoor unit operating state, capable of preventing refrigerant flow rate imbalance and raising thermal manufacture efficiency.

The invention relates to a transparent covering material for solar greenhouse in winter and for plastic greenhouse in early spring, in particular to a polyvinyl chloride antifogging dripless greenhouse film which can prevent from fogging in the greenhouse and enables the water drops in the condensed in the internal surface of the greenhouse film to wet and spread quickly. The polyvinyl chloride antifogging dripless greenhouse film adopts polyvinyl chloride resin as the base, adding plasticizer, heat stabilizer, ultraviolet absorbent, compound dripless agent and organosilicon antifogging agent into the polyvinyl chloride resin, and being prepared through calendering, stentering and other production process steps. The transparent covering material for solar greenhouse in winter and for plastic greenhouse in early spring has the advantages of good dripless antifogging effect, improvement of light transmittance for greenhouse film, incensement of light intensity, beneficial photosynthesis for crops, beneficial improvement of greenhouse temperature, acceleration of crops growth, and reduction of disease occurrence.

The invention discloses pet dog soft cookies with a function of clearing ozostomia, and a manufacturing method of the pet dog soft cookies, and belongs to the technical field of pet foods. The pet dog soft cookies comprise raw materials by weight parts: 25-40 parts of grain powder, 5-10 parts of grain starch, 5-15 parts of grain albumen powder, 15-40 parts of syrup, 2-5 parts of tara gum, 6-10 parts of fresh meat, 2-6 parts of animal fat, 2-5 parts of moisturizing agent, 0.1-0.15 part of sour agent, 0.5-0.8 part of multivitamin and amino acid, 0.05-0.15 part of potassium sorbate, 0.5-1.0 partof mineral elements, 0.5-5 parts of tea, 1-2 parts of flavor, 0.5-1.5 parts of phosphate and 30-70 parts of water. The manufacturing method of the pet dog soft cookies comprises the steps of mixing the raw materials, stirring, tabletting, baking and cooling. The tea in the components has a function of absorption, neutralization and polymerization on the odor in the oral cavity of a pet, so that the generation of the odor is effectively inhibited. The pet dog soft cookies contain about 22% of protein, thus reaching the standard specified by association of American feed control officials (AAFCO) for the pet food.

When the rotation speed of the driving source (21) has been lower than a predetermined value, the clutch moving element (45; 85) is disengaged from the clutch drum (31; 81) under the action of the clutch elastic element (46), thus making the clutch drum (31; 81) elastically slides back to a predetermined braking position under the action of the braking elastic element (36), where the brake shoe (33; 83) presses against the brake pad (35) to apply Braking action. When the rotational speed of the source device (21) has increased beyond a predetermined value, the clutch moving element (45; 85) slides radially outwards under centrifugal force in such a way that the clutch moving element (45; 85) Overcoming the bias of the brake elastic element (36), applying pressure to the clutch drum (31; 81) and making the clutch drum (31; 81) axially slide to the non-braking position, so that the brake shoe (33; 83 ) is disengaged from the brake pad (35) to release the braking effect.

The invention provides a bi-directional DCDC converter. The bi-directional DCDC converter comprises a transformer, an inductor, a diode, a relay, a controller, a current detection module, a voltage detection module and a field-effect tube, wherein the current detection module is connected with an external first direct-current voltage, and the current detection module is connected to the transformer by virtue of the field-effect tube; the transformer is connected with the relay, and the transformer is connected to an external second direct-current voltage by virtue of the field-effect tube; the second direct-current voltage is connected to an alternating-current load by virtue of an inverter; the relay, the current detection module, the voltage detection module and the field-effect tube are connected with the controller; when direct-current power is transferred by the second direct-current voltage to the first direct-current voltage, the relay is controlled to be turned off, and the pulse width of a PWM signal transmitted by the second direct-current voltage is adjusted; when the direct-current power is transferred by the first direct-current voltage to the second direct-current voltage, the relay is controlled to be turned on, and the pulse width of a PWM signal transmitted by the first direct-current voltage is adjusted.

The invention provides an integrated all-fresh air conditioner which comprises a housing, a fresh air inlet for introducing fresh air, electrical elements such as a compressor, etc., a condenser, an evaporator, a water tank, a pipeline system of all parts, a blower arranged at the rear part of the evaporator, an air outlet communicated with the blower, a return air inlet for absorbing indoor air, a condensate fan arranged at the rear part of the condenser, and an air outlet communicated with the condensing fan; wherein, a chemical filter and a fresh-air pre-cooled film are arranged at the front part of the evaporator, and a humidification film is arranged at the rear part of the evaporator, and a filter is arranged at the front part of the condenser. The integrated all-fresh air conditioner is designed into a whole body, and is condensed by the return air in an air conditioned room and the precooled fresh air, which can realize all-fresh-air effect while saving energy.

The present invention relates to the field of air conditioner technology. The outdoor unit consists of compressor, non-return valve, oil separator, four way change valve, heat exchange with fan and motor, drier and electronic expanding valve, vapor-liquid separator and air-liquid pipeline. The compressor consists of one variable frequency compressor and several fixed frequency compressors with all the air intake pipe being connected directly to the vapor-liquid separator and all the exhaust pipe being connected to the total exhaust pipe and the oil separator. The oil back pipe of the oil separator is connected to the inlet pipe of the vapor-liquid separator and may have serially connected filter. The present invention has low production, installation and use cost and high reliability.

The invention relates to a pulse charging method used for prolonging VRLA battery service life. The invention aims at provides a pulse charging method used for prolonging VRLA battery service life, such that the service life of a valve-regulated lead acid battery is prolonged. The invention adopts a technical scheme that, a VRLA battery has an output voltage of U and a capacity of C. The method is characterized in that the method is preceded in three sections which are a section A, a section B, and a section C. In the section A, constant-current charging is carried out with a charging limited current I. In the section B, periodic-change charging is carried out with constant current of the limited current I and constant-voltage of a second charging voltage U2. In the section C, periodic-change charging is carried out with constant-voltage of a first charging voltage U1 and constant-voltage of the charging voltage U2. In the section A, when a voltage is increased to U1, the process turns to the section B. In the section B, when the battery is charged to almost full, the process turns to the section C. The invention is suitable to be used in a field of storage battery charger.

Wearable devices (100) capable of measuring a core body temperature and other vital signs of a user in a range of situations are described herein. The wearable device is arranged to be retained within the ear canal of the ear, in order to prevent the wearable device from inadvertently removing itself from the ear. Providing an infrared thermopile (101) at the innermost end of the ear insert ensures that the infrared thermopile is provided as close as possible to the tympanic membrane which will be used to provide an indication of the core body temperature. The device has an audio conduction channel (111) at least partly defined within an ear canal extending member (114), the audio conduction channel configured as a waveguide to conduct sound through a blocking member (212) to a distal portion of the ear insert.

The invention relates to the industrial evaporation field, and especially relates to a positive-displacement compressor MVR heat pump evaporation system with an adjustable pressure ratio working station. The system is composed of a feed pump, a preheating device, a hierarchical evaporator, a positive-displacement water steam compressor, a separator, a condensation water tank, and a discharge pump; and the condensed water in the hierarchical evaporator bottom can be used for the secondary preheating on the fresh material liquid. The technical scheme mentioned above has the following advantages: (1) the solution evaporation parameters can be stably controlled, the condensed water stored in the preheating device and the hierarchical evaporator bottom can be used to preheat the fresh solutions in different levels so as to raise the solution temperature to the evaporation temperature before the solution enters the evaporation liquid room of the hierarchical evaporator, and thus the system unbalance caused by the temperature fluctuation of feed material is avoided; (2) a high-temperature water spraying mode and a low-temperature water spraying mode are adopted on the positive-displacement water steam compressor, thus the residual heat of condensed water can be fully utilized, the water amount can be adjusted at the same time, the actual pressure ratio of a positive-displacement water steam compressor can be adjusted, and the goal of adjusting the pressure ratio working conditions is achieved.

The invention discloses an ecology and environment-friendly soil improvement agent, which is prepared from the following raw materials in parts by weight: 15-25 parts of ore soil filler, 7-11 parts of coal gangue, 8-10 parts of straw, 10-20 parts of mixed grass meal, 3-5 parts of compound microorganisms, 5-7 parts of humate, 8-12 parts of excrement of livestock, 4-6 parts of desulfurized gypsum, 6-8 parts of bamboo charcoal powder and 5-7 parts of trace element additives. The soil improvement agent provided by the invention can effectively overcome the imbalance of nutrient elements in soil, improve soil fertility, loosen the soil, improve fertilizer efficiency, increase the contents of organic matters and nutrients, loosen hardened soil, accelerate a process of raw soil ripening and improve or recover land productivity; furthermore, industrial and agricultural wastes are used as most of the raw materials, so that the soil improvement agent is environmentally-friendly and safe; furthermore, the preparation method provided by the invention is lower in material cost, easy in obtaining of raw materials, simple in technology and easy to operate and in realization of industrial production, thus having higher practical value and a good application prospect.

The invention relates to an electric lifting stator inner cavity cyclometer, which provides a stator inner cavity cyclometer with the advantages of convenience for operation and use and high measuring efficiency and accuracy, wherein a measuring arm of the stator inner cavity cyclometer can freely rotate along a center post, and is driven by a driving device to lift up and down along the center post so that the assembly quality of a motor stator can be ensured and the technical problem that the assembly quality of the motor stator cannot be ensured because of time and labor consumption in operation and use, poor stability and low measuring accuracy of measuring devices of the prior art. The electric lifting stator inner cavity cyclometer comprises a base and a center post arranged on the base, wherein the center post is provided with a measuring arm and a balance arm; a sliding rack which can rotate along the center post is sheathed on the center post in a sliding mode; both sides of the sliding rack are respectively connected with the measuring arm and the balance arm; and a transmission mechanism is arranged above the center post, is connected with the driving device and can drive the sliding rack to upward and downward slide along the center post.