465results about How to "Loss minimization" patented technology

The present invention discloses a DC bus voltage following control circuit suitable for multi-path parallel LEDs, which comprises a DC output power source, a DC output voltage control circuit and a load, wherein the output end of the DC output voltage power source is connected with the multi-path load formed by connecting control circuits and LED lamps in series. The present invention is characterized in that one path of highest voltage in the multi-path load is detected out by the DC output voltage control circuit, and a voltage signal which is detected out is converted into a constant circuit signal; the constant circuit signal and a voltage drop voltage signal of a LED are in a special proportion character, and then, a reference signal Vor of output circuit voltage is generated by resistance voltage dividing; the reference signal Vor is sent to the positive input end of a voltage ring as a reference signal; the reference signal is compared with an output voltage sampling signal Vosof another output end of the voltage ring, and a control signal is output to the DC output voltage source to output voltage Vo. The present invention has simple structure, and is suitable for variousconstant control circuits.

The present invention relates to a light source-guide structure having an LED as a light source and a backlight apparatus having the same. The light source-guide structure includes a light guide plate with grooves formed in a peripheral side thereof and a light source having a transparent package fitted into the groove of the light guide plate with an LED chip inside the transparent package. The structure also includes a wiring substrate for seating the LED chip and reflecting the light from the LED chip to the light guide plate and a reflection layer attached on upper surfaces of the light source and the light guide plate. With the light source inserted into the light guide plate, the loss of light is minimized while the horizontal beam angle of light from the LED is increased, minimizing the peripheral area.

The present disclosure relates to a system and method for driving a drawer of a refrigerator. In a system and method for driving a drawer of a refrigerator according to present embodiments, in a state where a storage box is withdrawn and stops, the storage box is inserted or further withdrawn in accordance with a user's intention or action to reduce cool air loss.

The invention discloses a smart energy network system and a control method thereof. The system comprises one or more regional energy network units. The regional energy network unit comprises an energy generation subsystem, an energy storage subsystem, an energy application subsystem and an energy regeneration subsystem, and further comprises a subsystem energy efficiency controller and an energy efficiency matching station, wherein the subsystem energy efficiency controller is connected with the energy generation subsystem, the energy storage subsystem, the energy application subsystem and the energy regeneration subsystem respectively; and the energy efficiency matching station is connected with the energy generation subsystem, the energy storage subsystem, the energy application subsystem and the energy regeneration subsystem by an energy network and an information network, and is used for acquiring the energy information of the regional energy network units by the information network, and scheduling the energy production, transfer, storage and conversion in the regional energy network units according to the energy information by the subsystem energy efficiency controller.

The invention discloses a distributed global optimum energy management system based on an alternating direction method of multipliers. The distributed global optimum energy management system is a system taking a plurality of energy storage devices as units under a single microgrid, the microgrid comprises different nodes, each node is connected with a corresponding energy storage module, an energy management module, a dynamic load and a renewable energy power generator, different nodes are connected with one another through a topological graph mode, information can be exchanged between adjacent nodes, the energy management parameter of each node is synchronously updated through information exchange, so that the total energy consumption of the whole microgrid is adjusted to global minimum in real time. By tracking a charge status of the energy storage module and simultaneously considering factors such as the energy supply and demand balance condition of the microgrid, the loss of a transmission line, the discontinuity of the renewable energy power generator, the dynamic change of a load and the charging/discharging efficiency of the energy storage system, the power flow on a power line is dynamically minimized, and the purpose of reducing power loss is achieved.

The claimed subject matter relates to systems and/or methodologies that facilitate distributed storage of data. A distributed file system can be implemented on storage nodes such that the system places multiple copies of data (e.g., replicas) on a variety of disparate storage nodes to guarantee availability of the data and minimize loss of the data. Storage nodes are dynamically evaluated to identify respective characteristics. In one example, the characteristics can include availability of a storage node, capacity of a storage node, data storage cost associated with a storage node, data transfer costs associated with a storage node, locality of a storage node, network topology, or user preferences associated with a storage node. The characteristics can be employed to generate optimal placements decisions.

Input speech is coded in an encoder (11), the coded speech is decoded in a decoder (12), compensatory speech which compensates the speech of the current frame is generated in a compensatory speech generating part (20) by using past decoded speech, the quality of the compensatory speech is evaluated by using the input speech and the compensatory speech and a duplication level is generated the value of which increases incrementally with decreasing speech quality evaluation value in a speech quality evaluating part (40), and as many identical packets as the number specified by the duplication level is generated for the coded speech in a packet generating part (15), and the packets are transmitted, thereby reducing the possibility that packet loss will occur at the receiving end.

The present invention relates to a switch magnetic valve, which is taken as a pre-control valve to generate and control pressure in vehicle pneumatic braking system, wherein the switch magnetic valve comprises a first passage, used for introducing compressed-air into the switch magnetic valve or export compressed-air from the switch magnetic valve; a second passage, used for introducing compressed-air into the switch magnetic valve or export compressed-air from the switch magnetic valve; a valve chamber including a valve seat for selectively release and break off compressed-air stream; and a valve core, provided with an outer housing surface and a hole used let the compressed-air pass through. According to the invention, the valve chamber (32) is provided with a flow path (28); the flow path (28) neighbors with housing surface (70) of the valve core (24); the flow path (28) is formed by at least one gap on housing surface (70) of the valve core (24) in preference.

The invention relates to a refrigerator. The refrigerator includes a cabinet (10) in which an upper storage space and a lower storage space are defined, a door part (31) inserted and withdrawn to openand close the lower storage space, a drawer part (32) connected to the door part so as to be inserted into and withdrawn from the lower storage space, a support member (35) which is provided in the drawer part and on which a food or container is seated, and an elevation device (51) disposed on each of both side surfaces of the drawer part (32) and coupled to each of both side ends of the supportmember (35) to vertically elevate the support member in a state in which the drawer door is withdrawn.

The invention discloses a novel peptide-link base-oligonucleotide compound and a solid phase gradual synthesis method thereof. The peptide-link base-oligonucleotide compound provided by the invention has the structure of a general formula (VIII), wherein X is a polypeptide structure part, A is substituted and unsubstituted benzene ring or carbon atom, and n is 0,1,2,3,4 or 5. The peptide conjugating oligonucleotide compound of the invention has the characteristics of simple structure, convenient synthesis and the like, the product has membrane permeability, can serve as a molecular biology tool for researching antisense oligonucleotide and small-interference RNA (siRNA) and has potential drug development prospect. The solid phase gradual synthesis method of the invention avoids difficult synthesis of the current biomacromolecule conjugate, simplifies synthesis operation, and is convenient to prepare the decorated oligonucleotide compound with high flux and multiple target spots.

The present invention discloses a voice data classification method based on an improved capsule network. The method comprises the steps of: in a training phase, constructing a coder of a capsule network to perform coding of initial voice phoneme data to obtain a primary capsule; constructing a dynamic routing structure of the capsule network to transmit the information in the primary capsule to ahigh-class capsule; taking a softmax excitation value of the length of each high-class capsule to represent the probability of the initial voice phoneme data belonging to a corresponding type; constructing a decoder of the capsule network to perform decoding reconstruction of the high-class capsule corresponding to real phoneme symbols; performing optimization of parameters of the capsule networkbased on a total loss function; and in a test phase, inputting the initial voice phoneme data to the coder of the capsule network to determine the type of data to be tested. The voice data classification method based on the improved capsule network can perform accurate identification of the phoneme symbols corresponding to the time sequence signals of the voice phonemes so as to solve the technical problems that the directly extracted feature accuracy is low, the voice data classification effect is poor and the over-fitting is performed according to the theoretical knowledge.

The invention discloses a synchronous rectification control system and method based on a time domain multiplier. The control system comprises a degaussing detection state detection module, a primary side power switch turn-on time detection module, a time domain multiplier module, a dead zone control module, a PWM logic control module, an RS latch, a driving module, a time comparator module and a loop integral control module. The synchronous rectification control system and method based on the time domain multiplier not only can ensure safety of synchronous rectification control, but also can achieve the maximum synchronous rectification MOS transistor switch-on time in theory, thereby maximizing the efficiency of the synchronous rectification technology; compared with the existing control technology, the synchronous rectification control system and method have the obvious advantages and has the high practicability.

The invention discloses a distributed type gradient algorithm based microgrid energy storage unit optimization control method. The microgrid energy storage unit optimization control method comprises the steps of establishing a power grid power balance model for the microgrid; determining the relations between the charging-discharging efficiency of the energy storage unit and the charging-discharging power, and between the charging-discharging efficiency of the energy storage unit and the state of charge separately according to the electric energy loss in the charging-discharging process of the energy storage unit in the microgrid; carrying out modeling and analyzing on the charging-discharging process of the energy storage unit by taking the minimized electric energy loss in the charging-discharging process of the energy storage unit as the target function; optimizing and solving the established charging model for the energy storage unit based on a multi-agent system by fully utilizing the distributed type gradient algorithm to obtain a model optimal solution; and obtaining a charging-discharging strategy of the energy storage unit according to the model optimal solution, and controlling the implementation of the charging strategy. According to the optimization control method, the energy storage unit in the microgrid is optimized and dispatched, so that an optimization result equivalent to that obtained in a centralized method can be obtained; and in addition, the optimization control method is low in implementation cost, flexible and extensible, and capable of effectively solving the problem existing in the access of the large-scale battery energy storage system.

A description is given of an optical structure (100), in particular for determining and stabilizing the relative phase of short pulses, which contains a broadening device (6) for broadening the frequency spectrum of pulses of electromagnetic radiation, and a frequency multiplier device (8) for multiplying at least one frequency component of the pulses, wherein a focusing lens optic (7) is arranged between the broadening device and the frequency multiplier device, which focusing lens optic can be used to focus the pulses into the frequency multiplier device (8). Uses of this optical structure are also described.

The present invention relates to a method for manufacturing a microstructure body, which can include a functional substance that is sensitive to heat, can enable sufficient hardness, and can minimize the loss of the functional substance. The method for manufacturing the microstructure body, according to the present invention, comprises the following steps: forming a bottom layer by coating an adhesive substance on a plate-shaped first substrate and then drying; spotting an adhesive composition on a plurality of spots, which are separated away from each other, on the bottom layer; tensioning the adhesive composition by relatively moving a second substrate with regard to the first substrate; solidifying the tensioned adhesive composition; and cutting the solidified adhesive composition.

The invention relates to a wireless communication anti-eavesdrop interference power control algorithm based on Q learning. The wireless communication anti-eavesdrop interference power control algorithm comprises steps that S1. transmission power Ps, safety evaluation coefficient Rho, interference power xi, and levels of working time ts are initialized, and working time ts of an edge server is equally divided into k parts, and each part is used as a time slot t<(k)><s>; S2. the related quantity of the working state of the kth time slot t<(k)><s> is calculated; S3. a friendly jammer adopts a Q learning algorithm for learning, and a decision is made in every time slot t<(k)><s> according to a system state S(k), and then a corresponding motion xi(k) is selected; S4. after the Q learning training of the edge server is completed, the friendly jammer is used to schedule the motion X<k> to transmit a friendly interference signal according to an equation V(S<k+1>,X<k>)corresponding to thecurrent state S(k). The jammer is trained by the Q learning algorithm, and then the jammer continues trying to transmit interference power according to information transmission power of legitimate transmitters until the optimal interference power is finally acquired, and therefore maximization of information security and minimization of network energy loss are realized, and ideal effect of network energy utilization rate is improved.