224results about How to "Reduce system power consumption" patented technology

A controller reads a current value from a current sensor at regular intervals and calculates the average power consumption (Pavg) for a specified length of time (T). When the average power consumption (Pavg) exceeds an upper value (Pu) of power consumption, the controller performs throttling control of a CPU at a throttling rate of r %. If, nevertheless, the average power consumption (Pavg) is above the upper value (Pu), the controller sequentially increases the throttling rate in steps of r %. When the average power consumption (Pavg) is reduced below a lower value (Pl) as a result of the throttling control, the controller sequentially decreases the throttling rate in steps of r % until the upper value (Pu) is reached.

A power management circuit adapted for a portable electronic device is provided. The portable electronic device receives a supply voltage from a USB power supplying port through a built-in USB charging port. The power management circuit includes a USB detection unit, a voltage detection unit, and a control unit. The USB detection unit determines the type of the USB power supplying port. The voltage detection unit detects the supply voltage. The control unit configures the power consumption of the portable electronic device based on the type of the USB power supplying port and the supply voltage. When the portable electronic device initiates booting process with the USB power supplying port being the Dedication Charging Port and the supply voltage being lowered than a threshold, the control unit reduces the power consumption of the portable electronic device to maintain the supply voltage above the threshold for booting stably.

The invention discloses a display switching method for a mobile terminal and the mobile terminal. The mobile terminal comprises a first processor and a second processor. A state of a display module, which is controlled by the first processor, is a first state. A state of the display module, which is controlled by the second processor, is a second state. The display switching method for the mobile terminal comprises that: in the first state, the first processor receives a display switching command; the first processor acquires a control parameter; the first processor sends the control parameter to the second processor to control to switch the mobile terminal to the second state; and the second processor controls the display module according to the control parameter. The two processors in the invention can control the display module independently, thus, the mobile terminal can be switched to the suitable processor according to the requirement of the display content, improves the flexibility of display control, and reduces the power consumption of the system.

Systems and methods are disclosed for power management of a system having non-volatile memory (“NVM”). One or more controllers of the system can optimally turn modules on or off and / or intelligently adjust the operating speeds of modules and interfaces of the system based on the type of incoming commands and the current conditions of the system. This can result in optimal system performance and reduced system power consumption.

The invention discloses an impulse test system of a hydraulic hose. The system comprises a hydraulic impulse loading system and the like. The hydraulic impulse loading system comprises an oil source and the like. The oil source comprises a main oil tank and the like. The main oil tank is respectively connected with a hydraulic pump and an overflow valve. The hydraulic pump is connected with a one-way valve I which is respectively connected with a hydraulic control valve, an electro-hydraulic servo valve, a pressurizing cylinder and an energy storage device I. The electro-hydraulic servo valve is connected with the hydraulic control valve, and an energy storage device II, the hydraulic control valve and a tested hydraulic hose connecting block I are connected with the pressurizing cylinder. The pressurizing cylinder, the electro-hydraulic servo valve, the hydraulic control valve and the overflow valve are connected with the main oil tank. A temperature control system comprises a throttling hole, a one-way valve II, a high temperature oil tank and a radiator. A tested hydraulic hose connecting block II and the radiator are connected with the throttling hole. The radiator is communicated with the high temperature oil tank. A one-way valve II is connected with the high temperature oil tank, and the one-way valve II is communicated with the tested hydraulic hose connecting block I. The electro-hydraulic servo valve is connected with a controller.

The invention discloses a double circulation U-shaped tower desulfurization system and a process. According to the double circulation U-shaped tower desulfurization system, a slurry separation wall is arranged in a slurry pond of a U-shaped desulfurization tower to divide the slurry pond into a front circulation neutralization and oxidization pond and a rear circulation neutralization and oxidization pond, and meanwhile, a front circulation desulfurization region and a rear circulation desulfurization region which are mutually independent are arranged, wherein a front circulation desulfurization system is jointly formed by the front circulation neutralization and oxidization pond, a front circulation pump and the front circulation desulfurization region, and a circulation desulfurization system is jointly formed by the rear circulation neutralization and oxidization pond, a rear circulation pump and the rear circulation desulfurization region; and the double circulation desulfurization system which is relatively independent is formed in the U-shaped desulfurization tower, and the desulfurization of smoke is jointly finished by the double circulation desulfurization system. According to the double circulation U-shaped tower desulfurization system, higher desulfurization efficiency is not only guaranteed, but also the slurry circulation quantity and the system energy consumption are reduced, the height of the desulfurization tower is also reduced due to the overall layout of the U-shaped desulfurization tower, and the double circulation desulfurization system is simplified. The double circulation U-shaped tower desulfurization system is particularly suitable for desulfurizing smoke generated by burning high-sulfur coal, and the desulfurization efficiency can reach higher than 99 percent.

The invention discloses a heat management system of a hybrid electric vehicle. According to the heat management system of the hybrid electric vehicle, by using two four-way valves, an engine cooling system, an intercooling system, a heating system, a heavy-current system cooling system, a battery cooling system and an air conditioning system are integrated into a more efficient system; when a battery needs to be heated, waste heat of a heavy-current system, an HVH or an engine is effectively utilized to heat the battery by controlling on and off of related passages of the four-way valves and three-way valves; when the battery needs to be cooled, the battery is cooled by using different modes such as heavy-current heat radiator and a battery chiller according to a cooling demand of the battery. According to the heat management system of the hybrid electric vehicle, the function of a system part can be furthest developed, the waste heat of the system can be effectively utilized, the power consumption of the system can be reduced, and the pure electric driving range can be increased.

The invention discloses a mobile terminal and an application power consumption control method. The mobile terminal comprises a setting module for setting white list applications and grey list applications according to a preset strategy; a memory management module for cleaning out applications except the white list applications and grey list applications operated on the background from a memory after the mobile terminal enters a standby sleep state; and an application management module for forbidding one or more applications in the grey list applications operated on the background to carry out power consumption operation. According to the mobile terminal and the method, the applications are divided into a white list, a grey list and other applications, corresponding processing is carried out according to different characteristics of the applications, therefore, the system power consumption is reduced, and a user is enabled to have relatively good experience when using the mobile terminal and the method.

The invention discloses a method for implementing managing a reconfigurable on-chip unified memory aiming at instructions by utilizing a virtual memory mechanism. Through the method, the parameters of the Cache part and the SPM (Scratch-PadMemory) part in the reconfigurable unified memory can be dynamically adjusted in the program running process to adapt to the requirements for memory architecture in different program execution stages. The method is characterized by analyzing the memory access behaviors in different program running stages, obtaining phase change behavior diagrams of the instruction parts and carrying out mathematical abstraction on the phase change behavior diagrams, obtaining the reconfigurable memory configuration information in each program stage and selecting the program instruction parts needing to be optimized by adopting integer nonlinear programming (INLP) according to the energy consumption objective function and the performance objective function and mapping the code segments which have severe conflicts and are frequently accessed in the Cache into the SPM part as much as possible by virtue of a virtual memory management mechanism, thus not only reducing the external memory access energy consumption caused by repeatedly filling Cache, reducing the extra energy consumption caused by compare logic in the Cache and improving the system performance.

The invention discloses dual-circulation single-tower desulfurization systems and a process thereof. A liquid collecting disc arranged in a desulfurization tower divides a desulfurization area into an upper circulation desulfurization area and a lower circulation desulfurization area. The lower circulation desulfurization area, a lower circulation neutralization oxidation pond and a lower circulation pump altogether form a lower circulation desulfurization system. The upper circulation desulfurization area, an upper circulation neutralization oxidation pond and an upper circulation pump altogether form an upper circulation desulfurization system. The dual-circulation desulfurization systems which are relatively independent are formed in the desulfurization tower, and desulfurization of flue gas is completed by the two dual-circulation desulfurization systems together. The dual-circulation single-tower desulfurization systems which operate relatively independently are arranged within one desulfurization tower, so that high desulfurization efficiency is guaranteed, and the slurry circulation amount and the system power consumption are reduced, besides, the integral arrangement of the single tower reduces the occupied area and saves investment. The dual-circulation single-tower desulfurization systems are particularly applicable to desulfurization of flue gas produced by burning high sulfur coal, and the desulfurization efficiency can achieve more than 99%.

A memory system, system including the memory system and method of reducing memory system power consumption. The memory system includes multiple memory units allocable to one of a number of processor units, e.g., processors or processor cores. A memory controller receives requests for memory from the processor units and allocates sufficient space from the memory to each requesting processor unit. Allocated memory can include some Single Level per Cell (SLC) memory units storing a single bit per cell and other memory units storing more than one bit per cell. Thus, two processor units may be assigned identical memory space, while half, or fewer, than the number of cells of one are assigned to the other.

The invention aims to protect a self-adaptive deterministic scheduling method for an industrial wireless sensor network applicable to WIA-PA (Wireless Networks for Industrial Automation-Process Automation) standard. According to the special environment of the industrial wireless network, together with the superframe structure, resource allocation and other parameters of the WIA-PA standard, the self-adaptive deterministic scheduling method calculates the real-time throughputs of both the transmission non-periodic data and the periodic data in the network respectively, and configures the lengths of the contention access stage, the special timeslot stage and the dormant stage in the superframe according to the present data throughput, so as to adjust the proportions of all the stages in the superframe structure in a self-adaptive manner. The method can effectively improve the bandwidth utilization ratio and lower the system power consumption.

A data interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range 'serial' type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.

The invention discloses a fan adjustment and control testing method for optimizing power consumption. When a server system is subjected to system pressure testing in the working environment, the system temperature and the system power consumption are monitored by constantly adjusting the fan rotation speed so as to achieve minimum system power consumption. Accordingly, a fan adjustment and control strategy for optimizing the power consumption is set, and by means of the testing, a tester can confirm that the system power consumption of the server is minimum when various compression software can operate on a server in various working environments.

The invention discloses a power supply management method of a vehicle security system. The method comprises the following steps of: starting up the system, detecting whether an external power supply exists or not by the system and selecting a corresponding power supply mode; monitoring the state of external equipment by the system and judging the working state of the system; when the system detects the condition that the voltage of the external power supply is lower than a first voltage threshold value, cutting off the power supplied by the external power supply by the system and supplying power by adopting an internal battery; when the voltage of the internal battery is lower than a second voltage threshold value, automatically powering off by a GSM (Global System for Mobile Communications) / GPRS (General Packet Radio Service) module; continuing running by a master controller and closing a GPS (Global Position System); and when the voltage of the batteries is lower than a battery protection voltage, powering off by the system. The invention improves the power supply management of the system through improving the power supply circuit of a vehicle-mounted GPS / GPRS anti-theft apparatus and ensures that the working time of the system can be prolonged under the conditions of reducing the system power consumption under an SLEEP mode, avoiding vehicle feed and only using the internal batteries so as to guarantee the normal running of an anti-theft tracking system.

Disclosed are voice control method and device. The method includes the steps of setting activating voice information and instruction information; receiving user voice information and activating a voice control module; analyzing and processing the voice information, and controlling corresponding functional modules of a mobile device to operate. The device comprises a voice input module, a voice setting module, a function setting module, a voice recognition module, a voice control module, device functional modules and a storage module. By the use of the voice control method and device, system power consumption of mobile equipment is lowered, using is more facilitated for users, users need no more pushes when using the voice function, and better user experience is achieved.

The invention relates to a method for chlorinating and extracting gold in arsenic-containing sulphuric acid slag and comprehensively utilizing gas heat. The method comprises the following specific steps of (1) acid leaching and arsenic sulfide precipitation; (2) drying, wet-grinding, pelletizing, drying and chloridizing volatilization; (3) primary quench cooling, heat exchanging, secondary quenching and electrostatic precipitation; and (4) dust scrubbing, chloride leaching of gold, gold reducing, silver extraction by ammonia leaching and silver reducing. An acid leaching and arsenic precipitation technology is adopted, and arsenic is first separated from raw materials, so that the influence of arsenic on a follow-up system is eliminated. The arsenic sulfide precipitation technology realizes enrichment of arsenic in water and recycling of water. The primary quench cooling technology is adopted, so that the temperature of dust-laden gas is higher than that of a softening point of dust, and relatively high liquidity is obtained. An iron powder replacement technology is adopted, so that gold and silver enriched in recycling process water are recycled. Lead and zinc in the process water are recycled through alkaline lead and zinc precipitation, so that the problem that a pipeline is blocked with soluble salt is solved.

The invention relates to a cell reselection method and device. The method includes the following steps that: a mobile terminal initiates a cell reselection request, if the mobile terminal is in a ping-pong environment, reselection offset of an adjacent cell to which the mobile terminal requests to access is increased; and the cell reselection request of the mobile terminal is executed based on the increased reselection offset of the adjacent cell. With the method adopted, a cell reselection behavior can be lagged when the mobile terminal is in the ping-pong environment, and therefore, loss probability of paging information can be effectively reduced, and the power consumption of a system can be reduced, and excellent user experience can be provided.

A system and method for expeditious transfer of data from a source device to a destination device in error corrected manner are provided. The system and method avoid the substantial delay in utilizing an intermediate buffer, determining error, and remediating the detected errors before even initializing a transfer of an input data from the source device to the destination device. Upon completion of error correction, only those portions corrected are retransmitted to the destination memory rather than the complete corrected input data. A by-pass section is provided for copying input data to the destination memory with at least a degree of parallelism with the error detection of the input data delivered to a parallel buffer coupled with the correction section by a splitter section.

The invention relates to a missing child detection method based on human body detection. In the case of very low power consumption, human body targets are initially detected using an infrared sensor. After a suspected target is found through initial detection, a camera is started, and whether there is a missing child is confirmed using a video target re-checking method. Through a double-detection mode, the power consumption of the system is reduced, the false alarm rate and missing alarm rate of missing child detection are reduced, and the reliability of missing child detection is improved.

The invention proposes an active pen, a step-up circuit and a control method thereof. A boost circuit (10) comprises an inductor (1), a switch module, a capacitor (3) and a control module (4); the switch module at least comprises a first switch (21) and a second switch (22), a first end of the first switch is connected to one end of the inductor and a second end of the second switch is connected in parallel with the second switch; is connected to a first end of the second switch (22), and a second end of the second switch (22) is grounded; the other end of the inductor (1) is used for connecting to a power supply; the control module 4) is connected to the control terminal of the switch module; the control module (4) is used to control the state of each switch in the switch module so that the first end of the second switch (22) outputs a preset frequency And the amplitude of the voltage signal. The control method can improve the signal-to-noise ratio of the communication signal by using the frequency hopping communication technology, and meanwhile can reduce the system power consumption by adjusting the code voltage amplitude according to the application scenario.

An STS (standard transfer specification) split electricity meter based on a low-power-consumption carrier communication mode comprises a concentrator, a main meter and an indoor unit. A carrier signal of the main meter is coupled to an input / output end of a relay through two capacitors C2 and C3 to communicate the concentrator and the indoor unit. A carrier module of the indoor unit is a main module. A carrier module of the main meter is an auxiliary module. After the main meter is switched off due to overdue charge, a power management module of the indoor unit switches to a battery supply mode, and 12V power is provided for carrier communication. Hardware of the indoor unit comprises a low-static leak current part; by the use with the interlocking auto-switching / time division subarea supply technology, the life of a battery is prolonged; after mains supply is down, a system can seamlessly switch to the backup battery for power supply; additionally, during the modules transmitting data, transmitting power and selected channels are dynamically adjusted according to receiving signal strength, signal-to-noise ratio and bit error rate of each channel, and transmitting power is maximally reduced at the premise of ensuring reliable data transmission.

The invention discloses a two-dimensional water pollution diffusion source tracing positioning method and system based on a quasi-Newton method, and the method and the system have the beneficial effects that the precision can be effectively improved, and the position, release intensity and release time of a pollution source can be accurately identified when the quasi-Newton method is used for carrying out two-dimensional water pollution diffusion source tracing positioning. The method comprises the steps of firstly establishing a reference coordinate system for a to-be-detected water area, andcalibrating the position coordinates of all nodes; secondly, measuring the conductivity value of each monitoring point by using a conductivity sensor, converting the conductivity value into a concentration value according to a functional relationship between the conductivity and the concentration, and substituting the concentration value and the position coordinate at each node into an established difference value function; and finally obtaining an extreme point of the difference function under the unconstrained condition by using a quasi-Newton method, namely, obtaining the pollutant releasequality, the release time and the pollution source position.

The invention provides a heat pipe cooling system for a high-heat density cabinet. The heat pipe cooling system comprises a heat pipe circulation circuit and an auxiliary cooling circuit connected with the heat pipe circulation circuit, wherein the heat pipe circulation circuit comprises a heat pipe evaporator backboard and a plate-type heat exchanger which are connected in series; the vertical height of the plate-type heat exchanger is greater than that of the heat pipe evaporator backboard; the auxiliary cooling circuit comprises the plate-type heat exchanger, a compressor, an external condenser and a throttling device which are sequentially connected in series, or an air-cooled condenser, a three-way valve and a one-way valve; and the heat pipe circulation circuit can be in a multi-split structure form and achieves simultaneous cooling of a plurality of cabinets and a machine room. One set of air conditioning system does not need to be additionally arranged for the machine room, and a bottom cold air supply duct and a top hot air return duct do not need to be arranged, so that the cost is reduced and the energy consumption is reduced.

The invention discloses a relay system power allocation method based on physical layer security for mainly solving the problems that the reproducibility of a relay node is not considered and that the power allocation method is the secondary optimal to fail to satisfy the green communication demands in the prior art. The method comprises the following steps: 1, separately calculating the channel capacity of the relay node, the channel capacity of a destination node, the channel capacity of information source information received by an eavesdropping node, and the channel capacity of the eavesdropping node; 2, calculating a system interruption probability according to the channel capacity of the relay node, the channel capacity of the destination node, the channel capacity of the information source information received by the eavesdropping node, and the channel capacity of the eavesdropping node; and 3, calculating a minimum value of the system interruption probability under the distribution ratio constraint condition of energy absorption of a detection value of the information source information of the relay node, and obtaining an optimal distribution ratio of energy absorption of the detection value of the information source information of the relay node. By adoption of the relay system power allocation method, the energy consumption can be effectively reduced, the resources are saved, and the relay system power allocation method can be applied to wireless relay sensor network system.

The invention discloses an electric vehicle charging pile control system and method considering grid frequency safety. The electric vehicle charging pile control system comprises a grid single-phase power input port, a voltage transformer, an AD conversion chip, a first data processor and a second data processor connected successively; the first data processor is further connected with a data real-time display device and a GPS / Beidou signal receiver respectively; the second data processor communicates with an electric vehicle charging pile and an electric vehicle battery pack respectively; and the second data processor is further connected with a man-machine interaction device. The invention has the beneficial effects that: the frequency of a power system can be monitored in real time; when the frequency is relatively low after a fault of the power system, part of unimportant electric vehicle charging loads are cut off to reduce the active power vacancy of the system; low-frequency load reduction is effectively prevented; and the time for restoring the frequency of the power system is shortened.

The invention relates to a school-bus-safety-oriented missed-child detecting method.Infrared sensor signals, video sensor signals and audio sensor signals are fused, the advanced video-analysis computer processing technology and the advanced audio-analysis computer processing technology are combined, and whether missed children exist on a school bus or not can be reliably detected.Meanwhile, reasonable power supply control is carried out through an ARM processing plate, power dissipation of a system is reduced, and the missed-child detecting method can be widely applied to the field of school-bus safety.The infrared signals, the video signals and the audio signals are fused, whether the missed children exist on the school bus or not can be reliably detected, power dissipation is low, installing is convenient and rapid, cost is low, and the missed-child detecting method can be widely applied to the field of school-bus safety.

The invention discloses a device and method for producing clean gasoline and increasing propylene yield through catalytic cracking and hydrogenation. The device comprises a reaction-regeneration system, a fractionating system, an absorption stable system and a hydrofining unit. The method comprises the following steps: adding a gasoline fractionating tower to the top of a catalytic cracking fractionating tower to divide crude gasoline into a light fraction and a heavy fraction, wherein the heavy gasoline enters the hydrogenation unit for refining, and one part of the light gasoline enters the absorption stable system to obtain stable light gasoline, and the other part of the light gasoline directly returns to the upper part of a catalytic cracking riser reactor to be cracked to increase the propylene yield under a relatively harsh reaction condition; and finally, blending the stable light gasoline and the modified heavy gasoline to obtain the product of clean gasoline. By adopting the method, the catalytic cracking gasoline is efficiently modified, the propylene yield is increased, and the catalyst-oil ratio of a catalytic cracking device can be increased to promote the conversion of heavy petroleum hydrocarbon; and meanwhile, the load and energy consumption of the absorption stable system are reduced, the process is simplified, the synergistic effect between the two devices of catalytic cracking and hydrofining is enhanced, and the processing cost is lowered.

The invention relates to a distributed energy resource waste heat utilization system which comprises a gas turbine generator set, a steam turbine generator set and a waste heat boiler. The system is characterized in that an exhaust end of a gas turbine is communicated with a gas inlet end of the waste heat boiler, and a steam output end of the waste heat boiler is connected with a steam inlet end of a steam turbine, so that a gas turbine waste heat utilization loop is formed; a steam outlet end of the steam turbine is connected with a water inlet end of the waste heat boiler sequentially by a condenser and a water feed pump, so that a steam turbine waste heat utilization loop is formed; a hot water heat exchanger is arranged at the tail end of the waste heat boiler; a water outlet end of the hot water heat exchanger is connected with a water inlet end of a natural gas heating unit by a hot water supply mother pipe, and a water return end of the hot water heat exchanger is connected with a water outlet end of the natural gas heating unit by a hot water return mother pipe, so that a waste heat cyclic utilization loop of the gas turbine generator set and the steam turbine generator set can be formed. The distributed energy resource waste heat utilization system can be used for solving the problems that a natural gas heating mechanism is high in energy consumption and poor in safety in the prior art, and has the beneficial effects of utilizing the flue gas of the waste heat boiler, reducing the system energy consumption and reducing the flue gas emission.

The invention relates to the technical field of automobiles, in particular to a composite tire pressure monitoring method and a tire pressure monitoring device. The composite tire pressure monitoringmethod comprises: acquiring a first rotational speed of a first tire in which a pressure sensor is installed, and a second rotational speed of a second tire in which a pressure sensor is not installed; reading a first tire pressure value of the first tire detected by the pressure sensor; adjusting an initial tire pressure rotational speed relationship according to the first rotational speed and the first tire pressure value, to obtain a real-time tire pressure rotational speed relationship, wherein the initial tire pressure rotational speed relationship is calibrated as the corresponding relationship between the tire pressure value and the rotational speed in the initial state; obtaining a second tire pressure value of the second tire using the second rotational speed and the real-time tire pressure rotational speed relationship. In the scheme, the tire pressure value of each tire can be obtained in real time and accurately, and the corresponding relationship between the tire pressurevalue and the rotational speed can be obtained by calibrating the tire pressure value and the rotational speed in advance, thereby reducing the complexity of obtaining the second tire pressure and further reducing the energy consumption of the system.