218results about How to "Control energy consumption" patented technology

Apparatus and method are provided for cooling an electronics rack in an energy efficient, dynamic manner. The apparatus includes one or more extraction mechanisms for facilitating cooling of the electronics rack, an enclosure, a heat removal unit, and a control unit. The enclosure has an outer wall, a cover coupled to the outer wall and a central opening sized to surround the electronics rack and the heat extraction mechanism. A liquid coolant loop couples the heat removal unit in fluid communication with the heat extraction mechanism, which removes heat from liquid coolant passing therethrough. The control unit is coupled to the heat removal unit for dynamically adjusting energy consumption of the heat removal unit to limit its energy consumption, while providing a required cooling to the electronics rack employing the liquid coolant passing through the heat extraction mechanism.

The invention discloses a method for optimizing cutting parameters considering machining energy efficiency. The method comprises the following steps that a cutting parameter optimization model of a numerical control machine tool is built according to a cutting process of the numerical control machine tool, constraint conditions of the cutting parameter optimization model are built according to performance and machining requirements of the numerical control machine tool, and the built cutting parameter optimization model and the constraint conditions of the cutting parameter optimization model are worked out through a modified multiple-target teaching and learning optimization algorithm to obtain optimized cutting parameters, wherein subject scores in the algorithm are the cutting speed v, the feeding speed f and the cutting depth ap of the numerical control machine tool, a student X is an individual possessing the three subject scores (v, f and ap), namely, X=(v, f and ap), a class is a group with NP students, and NP is a random integer. The method can efficiently optimize the machining cutting parameters by considering machining energy consumption, thereby solving the existing technical problems in the cutting parameter optimization process.

The invention relates to a computer save energy method. The method includes steps as follows: an image information collected by an image obtaining module is sent to a user monitor module, the user monitor module scans the image information and sends result to an energy saving control module, if no facial image, the energy saving control module processes energy saving control to computer, if facial image being, the energy saving control module keeps normal working state of computer. The method solves problem that computer consumes energy still when a user is disturbed by something and the computer is not turned off or is adjusted to waiting, sleeping modes in computer power management system with existing technique, and waiting or sleeping time interval is overlong, and inconvenient using caused by user using manual switching energy saving mode. The method has energy saving function with human-computer communication mode, the computer is controlled to enter energy saving mode when no people is ahead on the computer or people does not operate computer, and can realize energy saving control when user leaves and using computer when user comes, the method is convenient and can save energy efficiently.

The invention provides a coal mine down-hole fire monitoring system based on a wireless sensor network. The system comprises a monitoring host, a communication master station and the wireless sensor network, wherein the wireless sensor network communicates with the monitoring host through the communication master station, is a ZigBee wireless self-organized network and comprises a wireless sensorand a wireless gateway; and the wireless sensor is used for acquiring coal mine safety data and wirelessly transmitting the coal mine safety data and comprises a wireless carbon monoxide sensor, a wireless wind pressure sensor and a wireless temperature sensor. Therefore, according to the coal mine down-hole fire monitoring system based on the wireless sensor network provided by the embodiment ofthe invention, coal mine down-hole fire conditions can be timely and accurately monitored, the energy consumption of a wireless sensor network node can be effectively controlled, and the service lifeof the wireless sensor network can be prolonged.

A low-power media access control method of node dynamic sleeping includes the following steps: (1) organizing the network topology to clustering topology and realize a coarse-grained clock synchronization between the node inside the cluster and the cluster head and make the node work and sleep periodically; (2) the nodes have three operating modes: a sending mode, a receiving mode and a cycle work mode, wherein the node of the cycle work mode is characterized in that the nodes work or sleep periodically and the actual work and sleep time period of the nodes changes dynamically and the operation sub-time-period of the neighboring node can be calculated; (3) in one work cycle, the operation sub-time-period of any two adjacent nodes can be overlapped to guarantee the communication; (4) the node can intercept the packet sent by the adjacent node and adjust the sleep time period according to the information carried by the packet to reduce the carrier interception times; (5) dynamically adjusting the busy and idle degree of the node according to different data sampling rates so as to reduce the power consumption while guaranteeing the throughput. The method, which is simple and reliable, has advantages of low power consumption, short delay, strong adaptive capacity and effectively prolonged life cycle of the network.

A process and an assembly for eliminating nitrogen oxides (NO.sub.x) present in the exhaust gas of a lean-burn diesel or spark-ignition engine, is part of the exhaust line coming from the engine. At least one nitrogen oxides conversion catalyst is placed in the main exhaust line the catalysts having non-coinciding temperature ranges for which the NO.sub.x conversion is below a certain conversion coefficient (C.sub.min). At least one NO.sub.x trap placed upstream is the conversion catalyst(s) and intended to trap, then to release the nitrogen oxides. At least one line bypassing the main exhaust line contains at least one of the NO.sub.x trap(s); and at least one valve intended to modulate the flow of gas between the bypass line and the main exhaust line is provided so that the NO.sub.x trap(s) can trap the nitrogen oxides, notably when conversion catalyst(s) have a conversion coefficient below a predetermined value (C.sub.min) and so that said the NO.sub.x trap(s) means (4) can release the nitrogen oxides simultaneously with a conversion.

A medical implantable lead of the type being adapted to be implanted into a human or animal body and attached with a distal end to an organ inside the body, has a helix of a helical wire in the distal end which is adapted to be screwed into the organ. In addition to the first helix, the lead also has a second helix of a helical wire, the second helix having the same diameter, the same pitch and being intertwined with the helical wire of the first helix and which, upon rotation of the first helix, will be rotated and screwed into the tissue. The first helix is electrically non-conductive whereas the second helix is electrically conductive. In a method for attaching a medical implantable lead to an organ inside a human or animal body, such a medical lead is employed and fixed to tissue in vivo.

A method and device may control energy consumption of in an in vivo imaging device by determining or estimating an amount of energy needed to capture images at a frame rate until a complete passage of the device through a predetermined region of the gastrointestinal tract, and alter or limit the frame capture rate accordingly.

The invention relates to a cross laminated timber (CLT) double-board seismic wall with a swinging energy-dissipation function. The CLT double-board seismic wall is composed of two CLT shear walls, a friction-type vertical connecting piece and a friction-type pulling-resistant anchoring piece. The two CLT shear walls are spliced together through the friction-type vertical connecting piece, and a wall body is connected with a floor or a foundation through the friction-type pulling-resistant anchoring piece. Under the effect of an earthquake, the CLT shear walls rotate in the wall board plane, the friction-type vertical connecting piece is in shear, and lap joint friction surfaces of the friction-type vertical connecting piece slide relatively to dissipate energy; and meanwhile, the specially-designed pulling-resistant anchoring piece is matched with rotation of the CLT shear walls, and friction surfaces in the pulling-resistant anchoring piece also slide relatively to dissipate energy. The CLT shear walls are hardly damaged after the earthquake, friction sheets in the vertical connecting piece and the pulling-resistant anchoring piece are not damaged and do not need to be replaced after the earthquake, and the ideal anti-seismic property that the structure is stable under small earthquakes, the seismic wall swings but is not damaged under large earthquakes, and no post-earthquake maintenance or only a small amount of post-earthquake maintenance is needed is achieved.

The invention provides a dehumidifying and dust-removing method which comprises the following steps: a sensor detects the humidity value and dust concentration at the air inlet of an air channel; when the humidity value is greater than or equal to the first humidity threshold value, a control device starts a dehumidifying device, so as to dehumidify the air channel, and when the humidity value is smaller than or equal to the second humidity threshold value, the control device switches off the dehumidifying device, so as to stop the dehumidifying operation; and when the dust concentration is greater than or equal to the first dust concentration threshold value, the control device starts the dust-removing device, so as to remove dust in the air channel, and when the dust concentration is smaller than or equal to the second dust concentration threshold value, the control device switches off the dust-removing device, so as to stop the dust-removing operation. According to the method provided by the invention, dehumidifying and dust removal are automatically controlled by way of setting threshold valves, thereby achieving the effect that the humidity and dust concentration in the air environment of machinery rooms are controlled within the range required by users, and thus the life service of equipment in the machinery rooms is increased and energy consumption is reduced.

An exercise machine of the treadmill type comprises a motor (5) connected to a belt (3) and able to be activated for driving the belt, an actuator (6) associated with the belt (3) for angling it, an interface (7) designed to allow the user (100) to set a basic pair of values relating to predetermined operating parameters and corresponding to a machine operating configuration. The machine also comprises a processor (8) programmed to derive a user (100) oxygen consumption value depending on the basic pair of values and for calculating, the oxygen consumption value being equal, at least one alternative pair of values which involves lower energy consumption by the motor (5) compared with the basic pair.

The invention discloses a complete set of equipment and process for processing degreased corn grits and corn flour by adopting a full-dry method relating to a novel full-dry method corn processing method. The complete equipment comprises a plurality of bucket elevators, a vibration sieve, a magnetic separator, a low-pressure blower (4), a destoner, two emery roll husking machines, a silo, a double-wind husking polisher, a self-balanced vibrating grading sieve machine, a specific-gravity corn degerminating machine, a milling machine, a plurality of elevators, two cylindrical polishers, a low-pressure blower (18), a suspended sieve, a grading flat sieve, an induced-draft separator and other equipment. Compared with the traditional full-wet method corn processing technology and method, the full-dry method corn processing method disclosed by the invention is characterized in that raw corns are processed into flour under a completely drying condition. The defect that the corn flour processed by adopting the full-wet method corn flour processing technology contains water is overcome, the drying process or drying equipment required in the full-wet method corn flour processing technology for avoiding the high possibilities of deterioration and mildewing of the corns containing water is omitted, the production cost is reduced, the production efficiency is improved, the general yield rate of finished products is increased by 10 percent, and the grease content is reduced by 3 percent.

The invention relates to an image-recognition-type street lamp brightness prediction control and maintenance system. The system comprises a binocular three-dimensional visual sensor, a motion analysis module, a CAN (controller area network) communication transfer bus, a street lamp electric cabinet main controller, an intelligent dimming ballast and an HID (high intensity discharge) street lamp, wherein the binocular three-dimensional visual sensor distributed installed according to intervisibility and the specific circumstance of a field angle acquires an image of the road conditions and transfers to the motion analysis module, the motion analysis module analyzes the image and then judges the road condition state and a movement direction and position information of an objective, and when the motion analysis module transfers the position and movement direction information of the objective to the street lamp electric cabinet main controller through CAN communication, the street lamp electric cabinet main controller judges whether the brightness of the HID street lamp needs to be turned up according to the information. The system provided by the invention enables the illuminating brightness of a plurality of HID street lamps in the moving direction of a personnel or a vehicle in advance, thus avoiding the defect that the parts below the lamps are dark.

A method and system for determining a geolocation of an object includes collecting a positioning signal including a predetermined message data segment. A time of arrival of the predetermined message data segment may be determined in the positioning signal. Information based on the time of arrival may be provided for determination of a geolocation of an object. The time of arrival of the predetermined message data segment may be determined based on a time search for the predetermined message data segment in the positioning signal.

A method of controlling a domestic gateway, intended to connect at least one domestic terminal of a domestic computer network to a telecommunication network. The domestic gateway includes an access point configured so as to establish a connection between the domestic terminal and the domestic gateway. Method includes: a step of verifying the state of the connection between the domestic gateway and the domestic terminal via the access point, and a step of cyclically placing the access point on standby if the connection is inactive, in which the access point is alternately enabled for a duration of activity and disabled for a duration of sleep.

This railcar is of the type comprising:

carriages including two driving carriages and intermediate carriages;

carrier bogies, motor bogies comprising at least one motor axle;

traction drives which are capable of supplying electrical energy to the motors of the motor bogies.

According to one feature of the invention, all the carriages have passenger compartments, the railcar is completely articulated, the traction drives are arranged in three carriages and a motor bogie is arranged below at least one end of each carriage which receives a traction drive.

Machine (1) for extracting puree, or fruit juice starting from vegetable or animal food, such as a rough extractor or a fine extractor. The machine (1) comprises essentially a cylindrical body (2) having an inlet (3) for the product to treat, an outlet (4) for a part of the product that can be used and an outlet (5) for another part of product to dispose of. The rotor (6) is wheeled to a motor (80) by a shaft (15). The product that is put in the cylindrical body (2) of the machine (1) is pushed by centrifugal force by a plurality of blades (20) of the rotor (6) to pass through a sieve (7) having holes (8) and a cylindrical or conical shape. The blades (20) of the rotor (6) comprise, in particular a first portion (21) having a first concavity and a second portion (22) having a second concavity opposite to the first.

The invention provides an air-conditioning load reduction method based on temperature adjustment means and SOC parameter modeling. The method comprises the following steps that S1) an air conditioningload-room temperature basic model is established; S2) an air conditioner is virtualized into an energy storage component, a concept of SOC parameter is introduced, and a charge parameter energy-storage model of the air conditioning component based on the SOC parameter is established; S3) an air-conditioning load reduction model based on the temperature adjustment means and SOC parameter modelingis established; and S4) when there is capacity lack in the power grid in summer, an air conditioning load which is expected to be reduced is input to the air-conditioning load reduction model, and indoor temperature upper/lower limit, load reduction lasting time and advanced cooling time prescribed by air-conditioning load reduction control are determined, and the maximal value that can be reducedof the air conditioning load is calculated. Thus, the power grid load can be reduced without influencing the comfortableness of users.

The purpose of obtaining a high resolution image with fewer number of image sensings in an image input device which allocates a planar object such as a document or the like into a plurality of areas for image sensing, and combines the obtained image data for output to a printer or display device or the like.

An image reading device using an area sensor as an image sensing element 30 which is stationary in an image sensing unit 14 facing the center of a document 1 on a table 11, and a taking lens 31 moves parallel to the document 1 and the image sensing element 30 to read the images of allocated sections A˜I of the document 1.

Provided is an apparatus and method for controlling a smart appliance using a smart terminal to induce a user to reduce energy consumption in response to a demand response signal from an energy utility. The apparatus and method may motivate a user to reduce energy consumption effectively and actively in response to the demand response signal from the energy utility by allowing the user to report a demand response-based user-defined event to a pre-registered smart terminal, and to control a user-premises smart appliance using the smart terminal.

The invention discloses a control method of automobile heat pump air conditioner, which comprises the following steps: 1. After the parameters of the evaporator are normalized, inputting the parametersinto a first BP neural network to obtain the degree of superheat Delta Te of the outlet of the evaporator, the heat exchange quantity Qe of the evaporator and the heat exchange quantity Qair of the air side of the evaporator; At that same time, normalizing and inputting the parameter of the condenser into the second BP neural network to obtain the degree of subcooling Delta Tc of the condenser outlet, the heat exchange quantity Qc of the condenser and the heat exchange quantity Qair, c of the air side of the condenser; 2, calculating the heat exchange Delta Q of the heat pump air conditionerto be adjusted; 3, making clustering analysis of the heat exchange Qneed which the heat pump air condition system needs to provide to the occupant cabin, the air side heat transfer Qair of evaporatorand the heat transfer delta Q of heat pump air conditioning system, the total power of heat pump air conditioning system is minimized by adjusting the opening of electronic expansion valve, the duty ratio of cooling fan outside the vehicle, the duty ratio of cooling fan inside the vehicle and the rotational speed of compressor. The control method of the automobile heat pump air conditioner provided by the invention has the advantages of fast response speed and good control of energy consumption.