30results about How to "Reduce power impact" patented technology

Information handling system power management in standby and hibernate states is adapted to reduce transition times for end user requests to resume to an operational state. During fast resume time periods, transitions to the hibernate state are limited so that recovery to an operational states has the reduced resume time associated with the standby state. The fast resume time periods are set by user preference or automatically set by monitoring end user interactions with the information handling system to predict fast resume times appropriate for the end user. In one embodiment, a power manager automatically transitions the information handling system from the hibernate state to a standby state a predetermined time period before a fast resume period begins.

In some embodiments, a system includes a shared, high bandwidth resource (e.g. a memory system), multiple agents configured to communicate with the shared resource, and a communication fabric coupling the multiple agents to the shared resource. The communication fabric may be equipped with limiters configured to limit bandwidth from the various agents based on one or more performance metrics measured with respect to the shared, high bandwidth resource. For example, the performance metrics may include one or more of latency, number of outstanding transactions, resource utilization, etc. The limiters may dynamically modify their limit configurations based on the performance metrics. In an embodiment, the system may include multiple thresholds for the performance metrics, and exceeding a given threshold may include modifying the limiters in the communication fabric. There may be hysteresis implemented in the system as well in some embodiments, to reduce the frequency of transitions between configurations.

The invention relates to a solar battery assembly. The solar battery assembly comprises at least two battery packs connected in series. Each battery pack comprises at least two battery piece string columns which are connected in parallel. Each battery piece string column comprises at least two battery cutting pieces which are connected in series, and every two adjacent battery cutting pieces are connected in series in an overlapping mode. The solar battery assembly further comprise elastic dummy wafers located in the battery packs and connected with the at least two battery piece string columns, and the at least two battery piece string columns are made to form two parallel-connection structures connected in series. In the solar battery assembly, the elastic dummy wafers can provide certain elasticity, the overall elasticity of the solar battery assembly is improved, essential elastic deformation is achieved to resist the outer or inner stress deformation requirement, the risk that cracks of the solar battery assembly are hidden is reduced, and the solar battery assembly is not prone to gate breakage and crack. Circuits can be connected between the battery piece string columns in the same battery pack, current can be shunt when local shielding happens, and power influences of the whole string in the early stage are reduced.

The invention relates to a zinc oxide arrester DC characteristic testing device and a zinc oxide arrester DC characteristic testing method. The zinc oxide arrester DC characteristic testing device comprises a microprocessor control module, a power supply module and an A/D converter, and further comprises a high-voltage power supply, a voltage sampling module, a current sampling module and a D/A converter, wherein the high-voltage power supply of the device integrates a constant-voltage and constant-current control circuit, a voltage-doubling rectifying circuit and a protective circuit; and the D/A converter controls output signals of the high-voltage power supply and controls the high-voltage power supply to output constant-current and constant-voltage signals. The method for testing the DC characteristics of a zinc oxide arrester by adopting the device comprises that: the high-voltage power supply outputs 1mA current signals in a constant-current way; a voltage collection circuit collects a voltage value of the tested zinc oxide arrester; the microprocessor control module calculates a value which is 0.75 time the voltage value; the high-voltage power supply outputs the voltage with the voltage value which is 0.75 time the collected voltage value in a constant-voltage way; the current signals are collected; and the electric property of the zinc oxide arrester is judged. All test items are automatically finished, which realizes the disassembly-free test and uninterrupted operation of the arrester and reduces the complexity of the test work.

The invention discloses a marine wind solar complementary electricity generation device. The marine wind solar complementary electricity generation device comprises a base and a supporting column vertically arranged on the base, wherein the supporting column is provided with a wind solar electricity generation unit, and a photovoltaic electricity generation unit is arranged at the top of the supporting column; the wind solar electricity generation unit comprises a stand column and a plurality of photovoltaic blades, the supporting column is rotatably sleeved with the stand column, the photovoltaic blades are connected with the stand column and arranged annularly, a rotor and a stator are further arranged at the lower part of the supporting column, the stand column is fixedly connected withthe rotor, and the stator is fixedly connected with the supporting column; and the wind solar electricity generation unit further comprises an angle adjustment structure used for adjusting the angleof the photovoltaic blades. The photovoltaic blades of the marine wind solar complementary electricity generation device can be used not only as blades of a draught fan but also as a photovoltaic electricity generation device, the angle at which the photovoltaic blades receive light rays or wind is adjusted, the characteristic of wind solar complementary electricity generation is fully embodied, photovoltaic electricity generation and wind solar complementary electricity generation are combined together, and the utilization rate of energy sources is sufficiently improved.

The invention discloses a solid-state switch circuit suitable for a direct-current transformer, an air-cooled solid-state switch module and a fault protection system, and the solid-state switch circuit comprises an IGBT switch unit which is connected in series with a direct-current positive bus, a first fly-wheel diode, a discharge resistor and a direct-current capacitor which are connected in parallel between the direct-current positive bus and a direct-current negative bus, and a controller; the controller controls the on-off state of the IGBT switch unit according to a received external instruction signal or a line operation state signal, and can control the IGBT switch unit to disconnect the line when the line where the solid-state switch is located breaks down. After the solid-state switch is shut down, the fly-wheel diode can carry out freewheeling on short-circuit current, the discharging resistor carries out discharging on the direct-current capacitor, and the direct-current capacitor can provide direct-current voltage support. The solid-state switch has the characteristic of stable operation during steady-state operation and fault current-limiting operation. The air-cooled solid-state switch module can be conveniently expanded during application, and the power supply reliability of a user is guaranteed when the low-voltage side of the direct-current transformer is short-circuited.

The invention discloses a single-axis angle tracking method and system for an intelligent photovoltaic module, and relates to the field of automatic sun-tracking of a bracket for photovoltaic power generation, and the system comprises a plurality of battery units, a photovoltaic module with a power optimizer, a single-axis tracking bracket and a tracking control module, so that the back shadow of a single battery unit is consistent with the front and rear row shielding; the mutual influence of shadows among the battery units is avoided, the power optimizer enables the assembly to operate at the maximum power, the parameters of the assembly are shared in the tracking control module, and the electric parameter information of the power optimizer is utilized to adjust and control the single-axis tracking support at the optimal tracking angle on the basis of an astronomical algorithm. According to the method, the influence of shadow shielding on power can be reduced, the sunlight incident angle obtains the optimal irradiation amount, then the optimal photovoltaic power generation power is obtained, a single-axis tracking system can be effectively arranged in a large photovoltaic power station, and the purpose of greatly reducing the leveling degree cost is achieved.

A grounding resistance detection device comprises a grounding resistance sensor, a remote transmission device and a host computer. The grounding resistance sensor transmits sensed current, voltage and temperature data to the remote transmission device through a communication interface. The remote transmission device communicates with the host computer through a GPRS. The beneficial effects are that a data transmission mode enabling an RS485 interface for transmission and 3G communication to be combined is employed for data transmission, so long-distance transmission of measured data information is realized; and in a calculation and analysis link, the host computer is adopted to calculate and analyze all-network grounding resistance in a concentrated manner, trend analysis is formed for all monitoring points, and data support is provided for timely discovering of fault hidden troubles.

A device being a power receiver or power transmitter of a wireless power transfer system transfer powers via a power transfer signal: The device comprises power transfer coil (103, 107) for receiving or generating the power transfer signal and a communication antenna (207, 307) for communicating with the power receiver (105) or the power transmitter (101) via a communication signal. The communication antenna (207, 307) overlaps the power transfer coil (103, 107). A magnetic shielding element (503, 505) is positioned between the power transfer coil (103, 107) and the communication antenna (207, 307). A controller (201, 301) controls the device to perform power transfer during power transfer intervals and communication during communication time intervals, the power transfer intervals and communication time intervals being disjoint. The magnetic shielding element (503, 505) comprises a magnetic shield material arranged to operate in a saturated mode during power transfer intervals and in a non-saturated mode during communication time intervals.

The invention relates to an intelligent scheduling system based on the Internet of Things, and the system comprises a first data processing module which is configured to monitor a distributed power supply and carry out the evaluation of an output prediction value of the distributed power supply; a second data processing module which is configured to monitor a load source and evaluate a load prediction value of the load source; a third data processing module which is configured to monitor the use states of a plurality of mobile energy-consuming devices in the scheduling network, and evaluate the schedulable capability of the mobile energy-consuming device in the first use state and the first power demand of the mobile energy-consuming device in the second use state; and an intelligent scheduling module which is configured to determine a first power grid load scheduling instruction based on a first evaluation result obtained by the first data processing module, a second evaluation result obtained by the second data processing module and a third evaluation result obtained by the third data processing module.

The invention provides a white high-reflectivity EVA compound coating. High reflectivity of the coating is realized by improving structure of the EVA compound coating. In addition, for a photovoltaic component adopting the compound coating, efficiency of battery pieces is unaffected.

A buffer gear set mounted between a motor and a transmission assembly of a power tool is disclosed to include an outer ring seat and an inner ring seat coaxially arranged together, a planetary gear set mounted in the outer ring seat, accommodation spaces defined between the outer ring seat and the inner ring seat, and buffer members respectively accommodated in the accommodation spaces. When an external force is applied between the outer ring seat and the inner ring seat, the buffer members absorb a part of the external force transmitted between the outer ring seat and the inner ring seat, thereby reducing the impact of the overall power tool, achieving shock absorption, reducing noise and improving work efficiency and quality.

The invention discloses a universal single-cylinder large-displacement gasoline engine device which comprises a box body, a box cover and a cylinder head which are connected with one another, wherein a crankshaft is in direct revolute-pair connection with the box body and the box cover; oil ducts communicated with one another are arranged on the box body, the box cover and the cylinder head; the oil ducts in the box body and the box cover respectively reach a rotation pair formed by the crankshaft, the box body and the box cover; a first branch oil duct and a second branch oil duct from which lubricating oil can flow out are arranged at the rotation pair; the first branch oil duct is communicated with an oil duct in the crankshaft to reach a crankshaft link; the second branch oil duct reaches the top of an air valve, a rocker arm and a push rod after being communicated with the oil duct in the cylinder head; and the oil ducts in the box body are simultaneously communicated with a balance shaft rotationally connected with the box body. The universal single-cylinder large-displacement gasoline engine device realizes diversification of universal engine products and remedies market shortage. More importantly, the universal single-cylinder large-displacement gasoline engine device can be used for completely replacing a double-cylinder engine with the same displacement. The universal single-cylinder large-displacement gasoline engine device is 30% lower than the double-cylinder engine in cost and can meet a hot market demand.

The invention relates to design of ground testing apparatuses directed at airplane air source systems, and in particular to a multi-air source system flow balance controlling apparatus. The controlling apparatus is intended for controlling the air-entraining flow of each path air source in the multi-air-entraining system. The controlling apparatus includes: air source pressure-regulating valves each of which is arranged in each path air-entraining pipeline; precoolers each of which is arranged in each path air-entraining pipeline and is arranged upstream of the air source pressure-regulating valve; first pressure transducers and second pressure transducers each pair of which are separately arranged upstream and downstream of the precooler of each path air-entraining pipeline; and a flow balance controller. According to the invention, the flow balance controller can regulate the air source pressure-regulating valve of a corresponding path air source on the basis of the comparison result between real time flow and object flow so as to automatically regulate the flow of the multi-air-entraining system, and the apparatus allows relative balance of the air-entraining amount of each engine and eliminates the phenomenon of excessive air entraining of a single engine, so that the method reduces influence on engine power, increases safe flying of the airplane, and reduces rate of error alarm report of the air-entraining valve.

The invention relates to an automatic voltage control method for a power grid and a computer readable medium, and the automatic voltage control method comprises the steps: sampling a voltage signal of a high-voltage side bus through employing a differential amplification circuit, carrying out the image smoothing of the signal when the frequency deviation between the frequency of the sampled voltage signal and a set frequency is greater than a first preset frequency deviation, and carrying out the image smoothing of the signal; when an absolute value of a difference value between the voltage signal after image smoothing and a preset voltage signal reference value is not smaller than a voltage difference threshold value, a first control signal is generated, and the series resistor is adjusted based on the first control signal; the absolute value of the difference value between the effective value of the voltage signal after image smoothing and the preset voltage signal reference value is smaller than the voltage difference value threshold value. Compared with the prior art, the method has the advantages of effectively reducing the influence on the power when the voltage of the high-voltage side bus is adjusted, and the like.

The invention discloses a power control device for a low-power laser device and a control method of the power control device for the low-power laser device and belongs to the field of laser devices. The power control device for the low-power laser device comprises a laser device control lens. A laser guide device is fixedly connected to the back end of the laser device control lens. The outer endof the laser guide device is fixedly connected with a laser emitter. In the prior art, through cooperation of a convex lens and a concave lens in a beam expander, the diameter of a laser is changed, the manner only can change the output power of the laser of a unit area and cannot change the total power acting on an object, and the direction of the laser beam can be changed. Compared with the prior art, the power control device for the low-power laser device keeps the output power of the laser of the unit area constant, changes the diameter of the laser and influences the total power of the laser acting on the object at the same time, and adjustment of the power of the laser acting on the object is achieved.

The invention discloses a silencer for a heavy fixed-wing unmanned aerial vehicle. The silencer is composed of a silencer body, an impedance material and a coiled pipeline. The silencer body is of a coiled structure, resistive noise reduction is designed on the upper end face and the lower end face of the silencer, resistance noise reduction is involved in the pipeline, a honeycomb core is arranged on the inner surface of the pipeline, airflow can flow in the smooth pipeline, meanwhile, resistive resistance noise reduction is achieved, and therefore the power influence of airflow resistance ona small-displacement engine is reduced. The silencer has the advantages that the structure is simple, so that the space utilization structure of the silencer is compact; and meanwhile, an exhaust guide pipe is short, so that the silencer is lighter in weight and smaller in airflow resistance. Under the condition that special application environment requirements exist, the strict requirements forthe weight, the installation space and the exhaust resistance of the silencer when the silencer is applied to the unmanned aerial vehicle are effectively met; and the silencer can also be used as a silencing device of an automobile, and can be used in other occasions where flowing gas is silenced.

The embodiment of the invention discloses a vehicle-mounted power supply control system, an electric vehicle and a vehicle-mounted power supply control method. The vehicle-mounted power supply controlsystem comprises a main storage battery, a vehicle end electrical component and an automatic driving electrical component. The main storage battery is provided with a first power output interface anda second power output interface. The first power supply output interface is connected with the automatic driving electrical component, and the second power supply output interface is connected with the vehicle end electrical component; and the main storage battery is used for respectively controlling the power supply states of the two power supply output interfaces according to the interface control instruction. In the embodiment of the invention, the automatic driving electrical component can be independently controlled so that the influence of the fluctuation of the working voltage of the vehicle-end electrical component on the voltage of the automatic driving electrical component can be avoided, and the working stability of the automatic driving electrical component is improved.

The invention provides a combined prefabricated ballast bed suitable for shock absorption and noise reduction of a railway tunnel and belongs to the technical field of railway tunnels. The ballast bed comprises a ballast bed assembly, wherein the ballast bed assembly comprises a prefabricated shell, a damping piece, a prefabricated ballast bed plate, a sleeper, a silencing plate and a steel rail, the damping piece is arranged in the prefabricated shell, the prefabricated ballast bed plate is arranged on the side, away from the prefabricated shell, of the damping piece, the sleeper is fixedly connected to the side, away from the damping piece, of the prefabricated ballast bed plate, and the silencing plate is fixedly connected to the side, close to the sleeper, of the prefabricated ballast bed plate; the silencing plate is provided with concave convex corrugations, and the steel rail conflicts with the silencing plate and can be fixedly connected to the sleeper, a damping piece comprises a vibration isolator and an elastic piece, the vibration isolator is fixedly connected to the prefabricated shell, one end of the elastic piece is fixedly connected to the vibration isolator, and the other end of the elastic piece is fixedly connected to the prefabricated ballast bed plate. The prefabricated ballast bed not only can have better shock absorption performance, but also has a better noise reduction effect.