510results about How to "Avoid imbalance" patented technology

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.

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.

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.

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.

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 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.

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 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.