31 results about "Global temperature" patented technology

A temperature controlled multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The temperature controlled multi-channel TOSA generally includes an array of lasers optically coupled to an optical multiplexer, such as an arrayed waveguide grating (AWG), to combine multiple optical signals at different channel wavelengths. The lasers may be thermally tuned to the channel wavelengths by establishing a global temperature for the array of lasers and separately raising local temperatures of individual lasers in response to monitored wavelengths associated with the lasers. A temperature control device, such as a TEC cooler coupled to the laser array, may provide the global temperature and individual heaters, such as resistors adjacent respective lasers, may provide the local temperatures. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

The invention discloses a device and method for detecting an operation state of an ultra-high-voltage transformer in a transformer substation based on a 3D infrared panoramic image, and aims to solve the problem that only parts of infrared thermal images of the transformer can be simultaneously obtained and a global temperature distribution thermal image of the transformer cannot be obtained when the operation state of the ultra-high-voltage transformer is detected traditionally. The device comprises a circular orbit paved around the transformer; the central axis of the transformer passes through the circle centre of the circular orbit; an intelligent controllable trolley is arranged on the circular orbit; a camera is arranged on the intelligent controllable trolley through a bracket; the camera comprises an infrared camera and a visible light camera; a panoramic fused image is formed by utilizing an image fusion technology; 3D left and right eye images are generated; recoding is carried out; and finally, the image is output onto a touch monitoring screen. According to the invention, the real-time operation state of the transformer can be reflected vividly; the operation state of the transformer can be observed without a dead angle from different angles; and operation faults can be judged in time.

Statistical timing analysis methods for circuits are described which compensate for circuit elements having correlated timing delays with a high degree of computational efficiency. An extended canonical timing model is used to represent each delay element along a circuit path, wherein the model bears information regarding any correlations that each element has to any other elements in the circuit (and / or to any external global factors, e.g., global temperature variations over the circuit, etc.). The model can be represented in a vectorized format which allows enhancement of computational efficiency, wherein the coefficients of the vectors allow an objective measure of element correlation (and wherein the vectors can be “pruned” by dropping insignificant coefficients to further enhance computational efficiency). A decomposition procedure can be used to decompose correlated elements into uncorrelated elements to allow delays to me more easily propagated through the timing diagram representing the circuit. Finally, a bounded approximation for the output of the MAX operator is described which provides a safely conservative approximation regardless of the linearity of the MAX output.

Statistical timing analysis methods for circuits are described which compensate for circuit elements having correlated timing delays with a high degree of computational efficiency. An extended canonical timing model is used to represent each delay element along a circuit path, wherein the model bears information regarding any correlations that each element has to any other elements in the circuit (and / or to any external global factors, e.g., global temperature variations over the circuit, etc.). The model can be represented in a vectorized format which allows enhancement of computational efficiency, wherein the coefficients of the vectors allow an objective measure of element correlation (and wherein the vectors can be “pruned” by dropping insignificant coefficients to further enhance computational efficiency). A decomposition procedure can be used to decompose correlated elements into uncorrelated elements to allow delays to me more easily propagated through the timing diagram representing the circuit. Finally, a bounded approximation for the output of the MAX operator is described which provides a safely conservative approximation regardless of the linearity of the MAX output.

The invention discloses a distributed heat management device of a communication machine room. The device comprises an overhead floor, an air conditioning unit, an embedded heat pipe and an air return pipe, wherein an evaporation segment of the embedded heat pipe is mounted close to components generating large of heat inside a cabinet, and absorbs the heat which is then exported to the outside of the cabinet through a condensation segment; the air conditioning unit adopts downward air supply; and cold air absorbs heat exported by IT equipment and the heat pipe when flowing through the cabinet, then rises under air pressure and heat pressure, and returns to the air conditioning unit via an air return port to be cooled again; the far-end overhead floor is provided with a floor fan, thus ensuring effective heat dissipation of the IT equipment; and the starting of the floor fan is controlled through the backboard temperature of the IT equipment, and when a set temperature is exceeded, the floor fan is started. A recirculation fan adopts a frequency conversion technology, and adjusts rotation speed according to static pressure under the far-end fan, thus avoiding the impact resulting from lack of air in other cabinets when the floor fan is started. By adopting the distributed heat management device of the communication machine room, provided by the invention, the scheme of local and global temperature reduction of the communication machine room is further improved, and a worthy reference is provided for a communication machine room design.

The invention discloses a temperature prediction method based on a spatio-temporal condition autoregressive process, belonging to the technical field of industrial engineering. A spatio-temporal prediction model composed of global temperature change process and local temperature change process is established. The global temperature change is described by thermodynamic model, and the local temperature change is described by spatio-temporal transfer learning model, so that the engineering temperature system can be predicted comprehensively and accurately. The invention uses the existing temperature sensor data to predict the temperature system in a short time in the future, and can obtain the comprehensive and accurate information of the temperature system in a period of time in the future.It can solve the problem that the temperature system can not be accurately predicted due to the insufficiency of sensor data and partial missing of data in the engineering system.

The invention discloses a rotational molding mould and a processing technology thereof. A material-structure-process coupling design system can be developed, an all-plastic vehicle body mould is divided into three-dimensional units through preparation of glass fiber reinforced polyethylene resin and auxiliary materials and by a large complicated aluminum alloy mould unit segmenting, combining andmolding method, aluminum alloy micro-elements are manufactured by an aluminum alloy casting molding technology, the shape-responsible all-plastic vehicle body mould can be divided into different parts, thus, the integral processing difficulty of the vehicle body mould is reduced, the service life of the mould is prolonged, the apparent quality of the product is ensured, a novel temperature controlmethod for directional heating is introduced in the process, under the micro-control of ensuring the global temperature uniformity of the mould, directional heating of some key areas can be realized,high-quality products with uniform wall thicknesses can be produced, local areas can even be thickened, the mechanical strength of the product is improved, and the service life of the product is prolonged.

A temperature controlled multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The temperature controlled multi-channel TOSA generally includes an array of lasers optically coupled to an optical multiplexer, such as an arrayed waveguide grating (AWG), to combine multiple optical signals at different channel wavelengths. The lasers may be thermally tuned to the channel wavelengths by establishing a global temperature for the array of lasers and separately raising local temperatures of individual lasers in response to monitored wavelengths associated with the lasers. A temperature control device, such as a TEC cooler coupled to the laser array, may provide the global temperature and individual heaters, such as resistors adjacent respective lasers, may provide the local temperatures. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

A heat exchanger for transferring energy from a second fluid to a first fluid has a plurality of tubes to carry one of the fluids and a layer of thermal buffer members on one side of the tubes to act as a buffer to reduce high thermal stresses that may be caused by global temperature patterns and localized high gradients that occur in system transients such as start up and shutdown. Conventional heat exchangers often have a short lifespan due to high thermal stresses acting on the core of the heat exchanger. The heat exchanger uses the thermal buffer members as an increased thermal mass to cause the temperature of the heat exchanger core to change in a more gradual manner, thereby reducing thermal stresses.

Provided is a temperature field data reconstruction method. The temperature field data reconstruction method includes the steps of 1, obtaining a temperature field data matrix; 2, conducting random sampling on the temperature field data matrix; 3, on the basis of sample data, filling the temperature field data matrix to reconstruct temperature field data. Before random sampling is conducted on thetemperature field data matrix, rank reduction processing can be conducted on an original matrix by adopting such a singular value decomposition algorithm. A singular value threshold algorithm or a singular value projection algorithm can be adopted to fill the temperature field data matrix on the basis of the simple data to reconstruct the temperature field data. By the adoption of the temperaturefield data reconstruction method and a computer readable storage medium, the problem is solved that in traditional methods, only mathematic relations among stations or correlations among locals are taken into consideration; therefore, global temperature field data can be recovered by using little temperature field station data; at the same time, reconstruction errors are low, the signal-to-noiseratio is extremely high, and not only is a traditional interpolation method overcome, but also data storage space can be saved.

The invention relates to an IDL-oriented projection transformation algorithm. Arctic region data of global temperature data of UTM projection is transformed into polar region normal projection. Longitude and latitude (hereinafter referred to as global longitude and latitude) of the global temperature data of the UTM projection, longitude and latitude (hereinafter referred to as arctic longitude and latitude) of an arctic region of the polar region normal projection, and the global temperature data are read by adopting an IDL; variables are defined for storing arctic temperature data after transformation; and a distance from each grid of the arctic longitude and latitude to each grid of the global longitude and latitude is calculated, the temperature data pointed by a global longitude and latitude index corresponding to a minimum distance is assigned to a variable grid pointed by an arctic longitude and latitude index, and all grids are circularly calculated in sequence to finally obtain arctic region temperature data of the polar region normal projection. According to the IDL-oriented projection conversion algorithm, a polar region part can be cut directly from data of global UTM projection and transformed into the polar region normal projection, so that the problem of difficulty in transforming original data of a global parameter into polar region data is solved.

A mounting platform provides support and packaging for one or more fiber Bragg gratings and electronic circuitry (e.g., heaters, coolers, piezoelectric strain providers, temperature and strain sensors, feedback circuitry, control loops), which may be printed on or on the mounting platform, embedded in the mounting platform, or may be an “off-board” chip solution (e.g., the electronic circuitry may be attached to the mounting platform, but not formed on or defined on the mounting platform). The fiber Bragg gratings are held in close proximity to the electronic circuitry, which applies local and global temperature and / or strain variations to the fiber Bragg gratings to, for example, stabilize and / or tune spectral properties of the fiber Bragg gratings so that spatial variations in the fiber Bragg gratings that result from processing and manufacturing fluctuations and tolerances can be compensated for.

A method for modifying environmental conditions is disclosed herein. The method includes the step of deploying a magnetic climate control material to a local area in one of the thermosphere and the exosphere. The magnetic climate control material deflects and absorbs rays of the sun. The magnetic climate control material affects temperature of a local area below the magnetic climate control material and also global temperatures. The method also includes the ability for moving, manipulating, or removal of this ring.

The invention discloses a quantitative research method for an inner wall abrasion of a thick-wall cylinder. The method takes temperature and a contact pressure with maximum proportion in an interaction as an entry point, takes the root cause of a mechanical abrasion, i.e., a mechanical movement as a research object, and uses frictional heats generated thereby to contribute an incompletely cooled thick-wall cylinder heat transfer model, so as to obtain a global temperature distribution of the corrected inner wall of the thick-wall cylinder, and obtain a global ablative abrasion amount of the inner wall of the thick-wall cylinder through a degradation mathematical model of ablative abrasion materials; and the method takes the root cause of the ablative abrasion, i.e., temperature as a research object, and uses the heat softening and heat melting of the inner wall of the thick-wall cylinder inner wall generated thereby to update corresponding material characteristics of the inner wall ofthe thick-wall cylinder, so as to obtain a corrected global contact pressure distribution of the inner wall of the thick-wall cylinder, and obtain a global mechanical abrasion amount of the inner wallof the thick-wall cylinder through a degradation mathematical model of mechanical abrasion materials. According to the quantitative research method for the inner wall abrasion of the thick-wall cylinder, a global abrasion amount of the inner wall of the thick-wall cylinder can be obtained, and the degradation process of a thick-wall cylinder material can be quantitatively researched.

A method for modifying environmental conditions is disclosed herein. The method includes the step of deploying a magnetic climate control material to a local area in one of the thermosphere and the exosphere. The magnetic climate control material deflects and absorbs rays of the sun. The magnetic climate control material affects temperature of a local area below the magnetic climate control material and also global temperatures. The method also includes the ability for moving, manipulating, or removal of this ring.

The invention discloses a method for reducing the global temperature. Multiple unloaded barges are transported to floating-ice areas in the Antarctic pole and floating-ice areas in the Arctic pole, congregated floating-ice is loaded to the unloaded barges through belt conveyors, then the barges drive to desert ports closest to the floating-ice areas, for example, the barges loaded with the floating-ice in the Antarctic pole drive to Australia, and the barges loaded with the floating-ices in the Arctic pole drive to the Sahara; ice water is drained into canals, saplings or grass suitable for the local environment of the desert is planted on both sides of each canal; and preferably, eucalyptuses are planted in the desert in Australia, and euphrates poplars are planted in the Sahara. Not less than 200,000 square kilometers in the North hemisphere and the South hemisphere are planted with trees every year, preferably, 100,000 square kilometers in Australia are planted with trees, and 100,000 square kilometers in the North of the Sahara desert are planted with trees.

The invention provides an assessment method for an influence of aircraft contrail generation on global surface temperature. The method comprises the following steps of (1) building a meshing assessment model of a global range; (2) according to meteorological conditions in to-be-assessed meshes, judging a contrail generation situation; (3) according to an air route structure and a flight flow distribution characteristic, calculating a contrail generation frequency index (CFI); (4) through an absolute global temperature potential (AGTP), assessing the influence of the contrail generation on the surface temperature in the to-be-assessed meshes after K years; and (5) performing statistics on heating conditions of all the to-be-assessed meshes, and drawing a global surface heating graph. According to the assessment method for the influence of the aircraft contrail generation on the global surface temperature, the blank of research on a technology for assessing a range of the influence of the aircraft contrail generation on the global surface temperature at home and abroad is made up for, and the global heating graph is accurately drawn on the basis of obtaining historical data of the meteorological conditions, the air route structure and the flight flow.

The invention discloses a global temperature monitoring system for an electronic device. The global temperature monitoring system includes a PCB for mounting electronic components, a plurality of intersecting PCB wires disposed on the PCB according to a preset layout, temperature sensors disposed on the PCB and at the intersections of the PCB wires, and a temperature controller arranged on the PCB, connected with the PCB wires, and used for scanning and detecting the detection values of the temperature sensors according to a preset sequence. The PCB wires disposed according to a preset layout divide the whole PCB into a plurality of temperature monitoring areas, the temperature values of respective temperature monitoring areas are detected in real time by the temperature sensors, and the temperature controller acquires the temperature values of respective temperature sensors. Thus, the global temperature monitoring system obtains the real-time temperature of respective temperature monitoring areas of the PCB, achieves global temperature monitoring of respective electronic components, and avoids temperature blind spots. The invention also discloses an electronic device with the advantages described above.

Embodiments relate to a method including assigning a relative or absolute per output unit weighting factor using a mathematical formulas based on individual and / or total sample population carbon sourcing.

The invention relates to a global overtemperature monitoring and temperature control auxiliary system for a plate type heater. The system comprises an infrared global temperature measurement unit, an overtemperature control unit and a cooling unit; according to the infrared global temperature measurement unit, infrared camera shooting is adopted to carry out global temperature measurement on the heater; the overtemperature control unit identifies temperature acquisition data and carries out overtemperature alarm to realize auxiliary control of the operation of the heater; a cooling unit is connected to an original air source of a wind tunnel, and a blow-cooling ring and a blow-cooling nozzle achieve air flow on the surface of a heater shell and further achieve cooling of the heater shell. The infrared global temperature measurement unit comprises an infrared camera, a portal frame, a driver, a movable sliding rail and a real-time temperature detector, the portal frame is arranged on the movable sliding rail, and the portal frame is driven by the driver to slide along the movable sliding rail. According to the system of the invention, real-time temperature measurement can be carried out on the heater globally, so that safe use of the heater is ensured.

The invention discloses a power efficiency management system suitable for a big data center and a control method. The power efficiency management system comprises a temperature control pipeline, a temperature measurement system and a temperature control system; the temperature control pipeline is based on computational fluid mechanics, a finite element method and existing building design parameters; the temperature measurement system focuses on system optimization configuration, and relates to a global temperature conduction coefficient, a local temperature conduction coefficient, a temperature control equipment sensitivity table and an HVAC temperature element regulation capability quantification index; and the control mode of the temperature control system is layered, partitioned and graded control and is combined with predictive control and optimal control. Heat energy generated by the big data center is effectively dissipated in a mode of arranging a temperature control pipeline system, so that the energy consumption of an HVAC system is greatly reduced, the purposes of greenness and energy conservation are achieved, the singleness of a temperature control mode of a traditionalbig data center HVAC system is overcome, the temperature control efficiency is improved, and accurate control over the flow speed of a cooling medium and optimal control over uniform temperature distribution are effectively achieved.

The invention relates to a central air conditioner demand response scheme optimization method based on global temperature adjustment. The method comprises the following steps of 1) constructing demandresponse strategies of three types of central air conditioners, and giving a group of temperature adjustment value sequences of discretized execution time periods according to the temperature adjustment resolution of the central air conditioners; 2) for a temperature adjustment value delta TG of each discretized execution time period under each type of demand response strategy, obtaining a relational expression between the temperature adjustment value delta TG of the execution time period and the interactive power; 3) defining a user demand response net income index pi, and calculating a userdemand response net income index corresponding to the temperature adjustment value delta TG of each discretized execution time period under each type of demand response strategy; and 4) selecting anoptimal central air conditioner demand response scheme and an optimal temperature adjustment value according to the user demand response net income index. Compared with the prior art, the method has the advantages of being comprehensive and accurate, achieving net income maximization, understanding user behaviors and the like.

The embodiment of the invention provides a turntable calibration method, which comprises the following steps: global temperature calibration is carried out on chips to be calibrated on a turntable to obtain temperature compensation curves corresponding to the chips to be calibrated, each chip to be calibrated corresponds to one temperature compensation curve, and the global temperature calibration is carried out under all temperature conditions; local temperature calibration is carried out on a to-be-calibrated product on a rotary table, the local fixed deviation of the to-be-calibrated product is obtained, the local temperature calibration is carried out under preset temperature conditions, and the number of the preset temperature conditions is smaller than the number of all the temperature conditions. The corresponding chip to be calibrated is installed in the product to be calibrated; and on the basis of the temperature compensation curve and the local fixed deviation, each product to be calibrated is calibrated, and a calibration result of each product to be calibrated is obtained.

The invention discloses a paddy field transformation scheme. The paddy field transformation scheme comprises an aquatic product breeding region and a planting region, wherein the aquatic product breeding region is arranged in the low part of the planting region. On one hand, the structure can be used for breeding aquatic products and on the other hand, the structure can be used for planting crops. The structure can be used for controlling the problem of global temperature rise and lays a good foundation for future automatic agriculture to increase the income of farmers, and the structure can be further used for retaining water sources to reduce drought, so that natural drought is effectively controlled.

The invention relates to a method for optimizing a demand response scheme of central air conditioners based on global temperature adjustment, comprising the following steps: 1) constructing demand response strategies of three types of central air conditioners, adjusting the resolution according to the temperature of the central air conditioners, and giving a set of discrete execution The temperature adjustment value sequence of the time period; 2) the temperature adjustment value ΔT for each discretized execution time period under each type of demand response strategy G , the temperature adjustment value ΔT of the execution period is obtained G 3) Define the user demand response net income index π, and calculate the temperature adjustment value ΔT of each discrete execution period under each type of demand response strategy G The corresponding user demand response net income index; 4) According to the user demand response net income index, select the optimal central air conditioning demand response plan and the optimal temperature adjustment value. Compared with the prior art, the present invention has the advantages of being comprehensive and accurate, maximizing the net benefit, and understanding the user's behavior.

The invention discloses a boiler section two-dimensional temperature field reconstruction algorithm based on maximum radiation signal intensity monitoring. Three infrared temperature measurement sensors are arranged on each of a left wall and a rear wall of a boiler; the average temperature value and the maximum temperature value are recorded as Ta and Tm respectively; the highest temperature grid position of the global temperature field is positioned at the intersection position of i and k; the temperature value of the Tik is taken as a known value to be substituted into a solving equation set, then an ART algebraic iteration algorithm is used for temperature field reconstruction, and a reconstruction field 1 is formed; actually measured temperature values of all positioned infrared probes are taken as known values to be substituted into the solving equation set, then temperature field reconstruction is carried out by using an ART algorithm to obtain a reconstruction field 2, and the reconstruction field 2 is a final temperature field; the infrared probe can measure the average value and the maximum value of the current path temperature at the same time, temperature field reconstruction is carried out based on the improved ART reconstruction algorithm corrected by the maximum radiation signal, and the goodness of fit between the reconstructed temperature field and the actual temperature field is ensured.

Provided is a temperature field data reconstruction method. The temperature field data reconstruction method includes the steps of 1, obtaining a temperature field data matrix; 2, conducting random sampling on the temperature field data matrix; 3, on the basis of sample data, filling the temperature field data matrix to reconstruct temperature field data. Before random sampling is conducted on thetemperature field data matrix, rank reduction processing can be conducted on an original matrix by adopting such a singular value decomposition algorithm. A singular value threshold algorithm or a singular value projection algorithm can be adopted to fill the temperature field data matrix on the basis of the simple data to reconstruct the temperature field data. By the adoption of the temperaturefield data reconstruction method and a computer readable storage medium, the problem is solved that in traditional methods, only mathematic relations among stations or correlations among locals are taken into consideration; therefore, global temperature field data can be recovered by using little temperature field station data; at the same time, reconstruction errors are low, the signal-to-noiseratio is extremely high, and not only is a traditional interpolation method overcome, but also data storage space can be saved.

The invention discloses a fluid-heat network modeling and bidirectional coupling method for an axial-radial mixed ventilation cooling motor, which is characterized in that the motor is a motor with an axial-radial mixed ventilation cooling structure, and the coupling method establishes a fluid network model and a heat network model separately so that the mutual influence between the temperature change and the fluid flow state is fully considered. Motor global temperature rise prediction is realized through bidirectional coupling of the fluid network model and the heat network model, so that the method has the advantage of short time required for predicting the temperature rise by a heat network method, and the motor temperature rise prediction precision can be improved; accordingly, accurate temperature rise prediction can be carried out on a motor with a complex ventilation structure, and a reference is provided for subsequent motor designers to carry out temperature rise prediction on a motor.

A method for controlled cold deposition 3D printing facing a polyetheretherketone (PEEK) material: first forming a desired stable global temperature field in a 3D printer inner working cavity (2); next forming a real-time, controllable local quick cooling field near a 3D printing head (5); 3D printing a PEEK material (11) such that the PEEK material (11) experiences different cooling rates and steady-state temperatures during extrusion, thereby forming different crystallinities at said locations; or controlling the moving speed and printing path of the 3D printing head (5) that has been heated to a high temperature within the area so as to form a PEEK material (11) having different crystallinities in different printing areas; finally, directly using a PEEK part (13) or performing corresponding heat treatment according to requirements. A PEEK part having different crystallinities and different performances is printed by means of the 3D printing method of using global temperature control, local quick cooling and local printing processing parameter variation, thereby meeting different application requirements, while processing is simple.