128results about How to "High power saving efficiency" patented technology

The invention discloses a method of user equipment (UE) power saving. UE notifies a network side of a self-expected power saving parameter through a special signaling, and the network side carries out a power saving configuration for the UE according to the power saving parameter. The invention also discloses a system of UE power saving. The method and the system of the invention assists in solving the problem that in the prior art network sides have difficulties in carrying out accurate scheduling decisions according to indication messages released by UE signaling, enabling the UE to transfer to a more appropriate radio resource control (RRC) state more promptly or to configure a more appropriate discontinuous reception (DRX) parameter, improving power saving efficiency of UE, and making a balance between business delays and power saving efficiency.

Provided is a method for transceiving data in a wireless LAN system on the basis of station (STA)-based service period scheduling. The method comprises entering an awake state, configuring a service period for transceiving an access point (AP) and data, transceiving the AP and the data during the service period, and entering a doze state when the service period ends.

Provided is a data transceiving method performed by a station (STA) in a wireless LAN system. The method comprises: receiving subgrouping parameter information from an access point (AP); determining whether a frame buffered in the STA subgroup in which the STA is contained exists or not based on the subgrouping parameter information; receiving a TIM element in a channel access interval for the STA subgroup from the AP if the buffered frame exists; and exchanging the AP and the frame in the channel access interval based on the TIM element.

In a power saving operation management method in a mobile communication system, a base station receives a sleep mode entering request message from a mobile station desiring to enter the sleep mode, determines a sleep period type and a parameter by analyzing a combination of radio channels between the mobile station and the base station, and transmits a sleep mode entering response message including the sleep period type and the parameter.

The invention discloses an illumination system of an intelligent controlled LED tunnel lamp and the application thereof, which comprises a power supply and distribution device, a group of structure including a plurality of LED tunnel lamps that consist of tunnel lamp burners, direct current drive working power and control units. A sensing signal recognition processor added with a temperature sensor is arranged in each control unit of the LED tunnel lamps in the invention; the front end of the sensing signal recognition processor is successively connected with a sensor signal converting processor and a vehicle detecting sensor through a preposed sensing signal transmission channel in a many-to-one way; signals from the temperature sensor and the vehicle detecting sensor are treated uniformly by the sensing signal recognition processor. The invention can recognize whether vehicles comes from the front of the tunnel so as to control whether the LED tunnel lamps are lightened, and the driving current of the LED tunnel lamp caps or the lightened number of the LED tunnel lamps can be adjusted and controlled according to the detected environment temperature in the tunnel without reducing the brightness of the tunnel lamps, thus realizing the power saving and prolonging the working life of the tunnel lamps.

This invention discloses a drive circuit of 220V AC LED lamp including a commutating circuit, the AC side of which is serial to a step-down current-limiting circuit composed of inductance coils, the DC side is parallel with a filter circuit composed of capacitors, a voltage-limiting protection circuit composed of Zener diodes and a LED array. The commutating circuit is composed of diode commutating bridge. The LED array is composed of multiple serial LEDS or first of all, multiple LEDS are serial then parallel.

A sheet post-processing apparatus has a sheet conveying portion which receives and conveys a sheet discharged from an apparatus on an upstream side, and discharges it to an apparatus on a downstream side or a discharge tray, a sheet post-processing portion which carried out post-processing on the sheet, and a power saving control portion which renders the sheet post-processing apparatus into a power saving state, and the power saving control portion maintains electric power supply to the sheet conveying portion, and interrupts electric power supply to the sheet post-processing portion. The sheet post-processing apparatus, even in the power saving state, is capable of discharging the sheet discharged from the apparatus on the upstream side to the apparatus on the downstream side or a discharge tray.

The invention discloses an illuminating system control method adopting an intelligent switch control system. The method is characterized in that the intelligent switch control system comprises a central processing unit, a brightness judgment module, a sound induction module, an infrared induction module, an image induction module, a voice recognition module and a network control module, wherein the brightness judgment module, the sound induction module, the infrared induction module, the image induction module, the voice recognition module and the network control module are connected with the central processing unit. According to the method, multiple recognition and control modes are adopted, the integration degree is high, operability is good, the intelligent level is high, the anti-jamming capability is high, and the power saving efficiency is high.

The invention relates to the technical field of organic chemistry and discloses a boron-containing luminescent material and its preparation method and use. The boron-containing luminescent material solves the problem that the existing luminescent materials in a solid state do not emit fluorescent light. The boron-containing luminescent material has good optical properties and aggregation-induced emission effects and can emit fluorescent light in a solid state. The preparation method has simple processes, adopts easily available raw materials and has a high yield.

A source-driving circuit comprises a plurality of first and second data-outputting units, a first and a second charge-sharing units and a charge-sharing switch circuit. The first and second data-outputting units have corresponding first and second output terminals respectively for outputting data signals with a first polarity and a second polarity. The first and second charge-sharing units comprise a plurality of first and second switches respectively. Each first switch is electrically connected between each two first output terminals and each two second output terminals. Each second switch is electrically connected between one of the first outputting terminals and a corresponding one of the second outputting terminals. A charge-sharing switch circuit is electrically connected to the first and second charge-sharing units for outputting a switch signal to the first and second charge-sharing units according to a polarity signal, so as to determine the on / off statuses of the first and second switches.

The invention discloses a program-control delay startup high-stability large-current driver, which can control the output voltage of a high-precision digit / analogue converter via a microprocessor, control the output current of load, control a current adjustment circuit via a MOS tube to improve the output current and efficiency. The invention adds a delay startup circuit to slowly increase the load output current without abrupt change. The driver adds a high-precision sampling resistance in load to measure the current fluctuation on the load and connects the control voltage of the output current and the voltage on the sampling resistance with two inputs of a comparator via voltage amplification to form a close-loop negative feedback technique to stabilize the output current with high reliability. The invention has simple circuit, while the output drive current can reach 2A, with continuous program control and adjustable property. The invention has stable and reliable output current and low voltage impact, under the connection with different loads. The invention has wide application in constant-current control and high power LED luminous technical fields.

The invention provides a high resolution demultiplexer (demux) driver circuit, comprising: a plurality of scan lines connected respectively to sub-pixels of corresponding column, a plurality of data lines connected respectively to sub-pixels of corresponding row, and a plurality of multiplexer (mux) modules; each mux module comprising two thin film transistors, with gates connected respectively to first and second shunt control signals, sources connected to same data signal, and drains connected respectively to data line near the two same color sub-pixel row; controlling the polarity of each data signal to control each sub-pixel row except the first and last rows to display in horizontal direction following the polarity distribution of alternating positive-positive and negative-negative. The invention does not need to change the data signal voltage in a power-saving mode, and achieves high power-saving efficiency. The number of control signals and the frequency controlling control signals are reduced for further power-saving.

A power management method for an input device is provided, which includes the following steps: starting to count time and recording a trigger time of the input device after the input device enters a light-sleep mode; and dynamically updating a deep-sleep start time according to the trigger time. When the input device is idle over a standby time, the input device would enter the light-sleep mode and record the trigger time that the input device is restored from the light-sleep mode to an operation mode by a user operating the input device. The method dynamically updates the deep-sleep start time according to the recorded trigger time, and thus better power saving efficiency is achieved.

The invention discloses a fresh air system and a control method thereof. The fresh air system comprises a refrigerant conveying device, an indoor unit and a controller. The refrigerant conveying device comprises a compressor and a four-way valve. The indoor unit comprises a fresh air inlet, a fresh air outlet, an exhaust air inlet, an exhaust air outlet, a first heat exchanger, an exhaust fan, a throttling device, a second heat exchanger and a forced draught fan, wherein one end of the throttling device is connected with one end of the first heat exchanger, and the other end of the throttlingdevice is connected with one end of the second heat exchanger. The controller controls the exhaust fan, the forced draught fan, the compressor and the four-way valve according to a selected operationmode and set target parameters, outdoor fresh air entering the system from the fresh air inlet flows through the second heat exchanger and the forced draught fan to be fed into a room through the fresh air outlet, and indoor air entering the system from the exhaust air inlet flows through the first heat exchanger and the exhaust fan to be exhausted out of the room through the exhaust air outlet. The fresh air efficiency can be improved, energy consumption is reduced, and the using seasons of the system are extended.

The invention relates to the technical field of display processing, and discloses a power saving method and a power saving system. The power saving method comprises the steps that arrangement analysis is carried out on a display interface by a terminal, and a specific region of the display interface is obtained; color in the specific region is converted into color with lower power dissipation. Compared with the prior art, the color in the specific region is converted into the color with the lower power dissipation, the power dissipation of the terminal is effectively lowered, so that the purpose of power saving is achieved; meanwhile functions of software do not need to be limited in the achieving process, the normal use of the software is not affected, and the experience of a user can be improved.

A problem to be solved is to enable the user to read out data stored in a logical unit in a power saving state in a short time in a storage system having a power saving function such as stopping the spindle of the HDD. To solve the problem, candidate document file information is read out according to the keywords inputted by the user from a search system, a predetermined number of document file names are extracted from the highest candidates in the candidate document file information, and the power saving function of the logical units actually storing the extracted document files is controlled (switch the state from the power saving state to the normal operation state).

The invention provides a high resolution demultiplexer (demux) driver circuit, comprising: a plurality of scan lines connected respectively to sub-pixels of corresponding column, a plurality of data lines connected respectively to sub-pixels of corresponding row, and a plurality of multiplexer (mux) modules; each mux module comprising two thin film transistors, with gates connected respectively to first and second shunt control signals, sources connected to same data signal, and drains connected respectively to data line near the two same color sub-pixel row; controlling the polarity of each data signal to control each sub-pixel row except the first and last rows to display in horizontal direction following the polarity distribution of alternating positive-positive and negative-negative. The invention does not need to change the data signal voltage in a power-saving mode, and achieves high power-saving efficiency. The number of control signals and the frequency controlling control signals are reduced for further power-saving.

The invention relates to an intelligent and accurate air supply system of an air conditioning unit. The intelligent and accurate air supply system comprises an air supply draught fan, an air return draught fan, air valves, an air supply pipeline, an air return pipeline, a fresh air pipeline, a chilled water supply system, a steam supply system, an accurate air supply control box and a sensing unit, wherein the air supply draught fan and the air supply pipeline as well as the air return draught fan and the air return pipeline are connected through the air valves; the fresh air pipeline is connected with the air supply draught fan through a filter; the sensing unit comprises an air volume sensor, a mini-type air pressure sensor, an air supply temperature and humidity complex sensor and an air discharging temperature and humidity complex sensor; the air supply draught fan and the air return draught fan are driven by adopting a variable-frequency and variable-speed motor; the chilled water supply system is provided with a chilled water control valve; the steam supply system is provided with a steam control valve; an intelligent air supply controller and a power supply are arranged in the accurate air supply control box; the intelligent air supply controller is in communication connection with the variable-frequency and variable-speed motor, the chilled water control valve, the steam control valve and the sensing unit.

The invention provides a street lamp time control system based on a perpetual calendar. The street lamp time control system includes a solar term database, a control database, and a processing terminal, the solar term database is configured with solar term information, each of the solar term information includes starting time data for reflecting the corresponding seasonal starting time; the control database is preset with a plurality of first control strategies, each first control strategy is corresponding one seasonal information, and the first control strategies control the on and off of street lamps; and the processing terminal acquires the first control strategies corresponding to the seasonal information and outputs the corresponding control instructions to control the street lamps according to the first control strategies. Compared with the street lamp control system in the prior art, the corresponding control instructions can be configured according to the difference of the climate, sunrise, and sunset time of the 24 solar terms, the accuracy is high, and the power saving efficiency is high; and meanwhile, the control can be realized by the corresponding time directly and is simple and convenient, and the reliability is improved.

Provided is a wireless communication method performed at an access point to enhance the transmission efficiency in a wireless local area network (WLAN) system, the method including scheduling a transmission time of an enhanced traffic indicator map (TIM) frame based on a type of a station, and transmitting a second beacon including the enhanced TIM frame to the station at a point in time aside from a transmission point in time of a first beacon.

A direct-current electromagnetic valve with an integrated circuit type high-low level switching circuit comprises a power saving unit (100) and a traditional direct-current electromagnetic valve. The direct-current electromagnetic valve is characterized in that the power saving unit (100) is composed of a switch pulse generation circuit (101), the high-low level switching circuit (102), a switching circuit (103), an error connection prevention diode (D1) and a fly-wheel diode (D5). The high-low level switching circuit (102) is the integrated circuit type high-low level switching circuit which is composed of a second integrated voltage comparator (IC1-2), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a first capacitor (C1), a second diode (D2), a third diode (D3), a fourteenth input end and a twelfth input end.

The invention relates to a permanent magnet intelligent contactor having electromagnetic controllable counterforce and capable of guaranteeing normal switching-off. The permanent magnet intelligent contactor comprises a mechanical system and an electric control system. The mechanical system comprises a movable iron core, a stationary iron core, a coil, a movable iron core connecting part, a lower insulating shell, an upper insulating shell, a contact spring, a movable contact component, a stationary contact component and two non-linear counterforce springs. The electric control system is connected with the coil. The electric control system comprises a CPU control module and a switching-on and switching-off control module, and switching-on and switching-off control over the permanent magnet intelligent contactor is achieved. The movable iron core is an iron core formed by iron core combinations made of permanent magnets and semihard magnetic alloy or residual-magnetism-free iron cores. The permanent magnets are inlaid in the lower portions of movable iron core posts. Three faces of each permanent magnet are wrapped by the iron core posts made of the corresponding semihard magnetic alloy or residual-magnetism-free iron cores. The majority of loss power in the iron cores and the coil can be saved, meanwhile, noise is reduced or eliminated, the temperature rise of the coil is lowered, and the service life of the permanent magnet intelligent contactor is prolonged.

The invention provides a liquid crystal point reversing drive circuit, comprising a positive signal source, a negative signal source, a first selection unit and a second selection unit, wherein, the positive signal source provides a first positive signal and a second positive signal; the negative signal source provides a first negative signal source and a second negative signal source; the first selection unit is connected with the positive signal source and the negative signal source and used for receiving the first positive signal of the positive signal source and the first negative signal of the negative signal source, and the unit is composed of low-voltage elements; the second selection unit is connected with the positive signal source and the negative signal source and used for receiving the second positive signal of the positive signal source and the second negative signal of the negative signal source, and the unit is composed of low-voltage elements; the first signal source is connected with the first selection unit to alternately output a first positive voltage and a first negative voltage; and the second signal source is connected with the second selection unit to alternately output a second positive voltage and a second negative voltage. The drive circuit forms output of the positive voltage and the negative voltage of two source electrodes by single positive signal source and single negative signal source, thus reducing the usage quantity of a computing amplifier.

A control method is sutiable for a display and is provided with a general mode and a power saving mode. The control method, in the power saving mode, includes the steps of: obtaining a second gray scale data according to a plurality of first gray scale datas, wherein the first gray scale datas are repsectively correpsonding to a plurality of first primary colors, and the second gray scale data is corresponding to a second primary color besides the first primary colors, and generating a plurality of thrid grey scale data according to the first gray scale datas and the second grey scale data, wherein first primary color grey data and second grey scale data are defined in the thrid grey scale data, the first primary color grey data is related to the first primary color and the second primary color grey data is related to the second primary color; and regulating the third grey scale data according to a comparison strengthening function; and finally querying a plurality of driving grey scale datas according to the regualted third grey scale data and driving the display by means of the driving grey scale datas to show an image.

The invention discloses an alternating current electromagnetic valve for single-threshold power saving and noise reduction. The alternating current electromagnetic valve comprises a power saving unit 100 and a conventional alternating current electromagnetic valve, and is characterized in that the power saving unit 100 consists of an AC-DC conversion circuit 101, a switch pulse generation circuit 102, a switch circuit 103, a sustaining voltage reduction circuit 104 and an electric bridge circuit 105, wherein the AC-DC conversion circuit 101 is a single-threshold conversion circuit.

The invention relates to an air compressor energy saving controller. The air compressor energy saving controller comprises an air compressor intelligent controller. The air compressor energy saving controller is characterized in that: the air compressor intelligent controller is connected to a programmable controller of the air compressor energy saving controller; the programmable controller is connected to a wireless data transceiver; the air compressor intelligent controller controls a Y contactor and a delta contactor; the programmable controller controls a frequency converter and is connected to a pressure sensor; the frequency converter is connected to a power frequency converter; and the power frequency converter is connected to a main motor of an air compressor. The beneficial effects of the air compressor energy saving controller are that: a control cabinet of the energy saving controller is provided with a man-machine interaction interface, so that an operation state and a control process of the energy saving controller can be fully displayed, state query and parameter modification are convenient, operation states of air compressors in a whole air compression station can be centrally displayed and controlled by operations, and operation and monitoring of the air compressors are convenient; and the wireless data transceiver is provided and can perform remote communication with an upper computer software, thus facilitating central management and control of air compressor data.

The invention relates to a double-threshold-value type power-saving silencing AC electromagnetic valve which comprises a power-saving unit 100 and a conventional AC electromagnetic valve and is characterized in that the power-saving unit 100 consists of an AC-DC (Alternating Current to Direct Current) converting circuit 101, a switching pulse generating circuit 102, a switching circuit 103, a sustaining voltage step-down circuit 104 and an electric bridge circuit 105, wherein the AC-DC converting circuit 101 is a double-threshold-value type converting circuit.

While a general-purpose interface circuit and another general-purpose interface circuit are provided so as to transmit / receive data between a host appliance and a device appliance, when the general-purpose interface of the device appliance happens to hang up, a control section transmits a reset signal via a dedicated interface circuit. When a dedicated interface circuit provided on the side of the device appliance receives this reset signal and then outputs this received reset signal to the general-purpose interface circuit, the general-purpose interface circuit is reinitiated.

An apparatus is operable to receive a digital video signal transmitted over a channel and comprises an operational module configured to operate in a first mode of operation and in a second mode. The apparatus is configured to switch operation of the operational module from the first mode to the second mode in dependence of an estimate of an environment (condition) of the channel.