218results about How to "Reduce the number of layouts" patented technology

The invention discloses a wireless indoor positioning method and a device based on environmental backscattering. The method comprises steps: a radio frequency source RFs transmits signals; a label performs environmental backscattering; a mobile terminal Q detects the received label signals; and three-dimensional positioning on the mobile terminal is finally carried out. The device comprises the radio frequency source, the label and the mobile terminal. The environmental backscattering technology is used to be combined to multi-antenna label beam scanning, indoor and real-time three-dimensionalpositioning is realized, and the method and the device have the advantages of low power consumption, good anti-multipath effects are good; the safety is high; the system complexity is low; and the like.

The invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, and the light transmittance of the first display area is larger than that of the second display area. The display panel comprises first pixel groups located in the first display area and second sub-pixels located in the second display area, wherein each first pixel group comprises a first light-emitting pixel unit and a first non-light-emitting sub-pixel, and the first light-emitting pixel unit comprises first light-emitting sub-pixels; and the first pixel arrangement structure formed by the first light-emitting sub-pixels and the first non-light-emitting sub-pixels is the same as the second pixel arrangement structure formed by the second sub-pixels. According to the display panel provided by the embodiment of the invention, the boundary between the second display area with the higher PPI and the transition display area with the lower PPI in the display picture of the display panel is fuzzified, so that an obvious boundary between the two display areas is avoided, and the display effect is improved.

The invention discloses a color film substrate, an array substrate, a display panel and a display device. The color brightness ratio of the display device can be improved, and the white balance effect is improved, so that the display quality of the display device is improved. The color film substrate comprises a plurality of first pixel units arranged and distributed in an array shape, the first pixel units comprise red sub-pixels, green sub-pixels and blue sub-pixels, the sub-pixels comprise colorful photoresistance of the corresponding colors and white photoresistance, a white chromaticity coordinate formed after color mixture of the red sub-pixels, the green sub-pixels and the blue sub-pixels equals a white chromaticity coordinate formed after color mixture of the red sub-pixels, the green sub-pixels and the blue sub-pixels with the area ratio of 1:1:1. Compensation can be carried out on the brightness difference caused by difference of light filtration effects of the colorful photoresistance by designing the white photoresistance of the corresponding area, and therefore the color brightness ratio of the display device can be improved, the white balance effect is improved, and the display quality of the display device is improved.

The invention provides an indoor positioning method based on environmental backscattering. The indoor positioning method comprises the following steps that step one, a radio frequency source RFs emitsa signal: the tags of which any three of more than four tags are not arranged at the spatial position of the same plane are included; step two, environmental backscattering of the tags: the tags receive the signal of the radio frequency source RFs and transmit the signal to a mobile terminal Q through the backscattering mode; step three, the mobile terminal Q detects and positions the received tag signal: the four tags of the maximum signal intensity RSSI value are selected and recorded as Ta', Tb', Tc' and Td'; and step four, a unique triangular pyramid can be determined by four coordinatesand the position coordinates (x, y, z) of the unique mobile terminal Q can be determined through the triangular pyramid. The useful signal receiving power of the target can be enhanced, the coverage space can be increased, the method has great anti-multipath effect, the arrangement number of the tags can be saved and the cost of the positioning device can be reduced.

A gravel pit earth volume measuring method based on digital image technology adopts a palm computer, a GPS receiver and a digital camera to realize the digital acquisition and recording of field information. During field measurement, the GPS receiver distributes control points and collects the three-dimensional coordinates of the control points; the software running on the palm computer receives GPS positioning results in real-time through the GNSS network and generates a GPSPoint point coverage and gravel pit boundary coverage; a proper control is selected to erect a marker post, two signboards are arranged on the marker post and used as the photo control points, the digital camera is adopted to take photos of the gravel pit and the marker post; when the field operation is over, the photos and the field acquisition data are uploaded to an interior work data processing system; according to the control point coverage, a single photo is utilized to resolve the photo information, and then the three-dimensional coordinates of the internal point of the gravel pit are obtained through three-dimensional relative calculation; a triangular network model of the gravel pit is constructed and is calculated to obtain the depth and earth volume of the gravel pit.

The invention provides a pixel array which comprises a plurality of scanning lines, a plurality of data lines and a plurality of pixels. Each pixel arranged in the nth column comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein a first gate and a first drain of a first transistor in the first sub-pixel are connected with the n-1th scanning line and a first pixel electrode respectively; a second gate of a second transistor in the second sub-pixel is connected with the nth scanning line; a second drain is connected with a second pixel electrode and a first source electrode of the first transistor; A third gate of a third transistor in the third sub-pixel is connected with the n+1th scanning line; a third drain is connected with a third pixel electrode and a second source electrode of the second transistor; and a third source electrode of the third transistor is connected with one of the data lines.

The invention belongs to an accident safety device for the pressurized water reactor nuclear power plant and a corresponding relieving measure and particularly relates to a device and a method for quickly relieving pressure in a primary circuit of the pressurized water reactor nuclear power plant under an accident working condition. The method comprises: leading out a group of pressure-relief exhaust pipes from the top of a pressure stabilizer, wherein quick pressure-relief valve banks are arranged in the pressure-relief exhaust pipes, the other ends of the pressure-relief exhaust pipes are connected to an inerting tank, an inerting gas is filled in the inerting tank, and an blasting film is arranged on the inerting tank; and when the temperature at the outlet of a core reaches a set value, opening the quick pressure-relief valve banks to allow a hydrogen mixture to mix with the inerting gas in the inerting tank, wherein when the inerting tank bears a certain pressure, the blasting film blasts and the mixed gas is discharged into the large space of a safety shell. The accident safety device can relieve the risks of blasting when the hydrogen enters the safety shell, provides a new protective means for preventing high-pressure core melt and high-temperature and high-pressure melt from being injected to the safety shell, and improves the economy and reduces the maintenance cost of the nuclear power plant.

An RTU suitable for the Modbus protocol is used to implement communication between a field sensing instrument and a monitoring upper computer. The RTU comprises a data acquisition communication module, a main controller, and an upper communication processing module which are sequentially connected in communication. The data acquisition communication module is communicatively connected with severalgroups of field sensing instruments. The upper communication processing module is communicatively connected with the monitoring upper computer. The main controller comprises a plurality of Modbus address tables corresponding one-on-one to the several groups of field sensing instruments. The Modbus address tables are communicatively connected with a protocol processing and data converter, a parameter configuration Web server, and a Modbus server. The protocol processing and data converter is also communicatively connected with the data acquisition communication module. The Modbus server is also communicatively connected with the upper communication processing module. The invention provides a RTU suitable for Modbus protocol and a communication method thereof. The RTU can collect multiple sets of independent sensing instrument data, simulate multiple Modbus devices, reduce the number of remote field RTUs, and can conveniently and quickly configure parameters using the browser.

The invention comprises a multi-nozzle rocket jet test system. The system comprises a simulated rocket body, a test platform and a water spraying device used for reducing noise and protecting the testplatform; the outer contour dimension of the simulated rocket body and the outer contour dimension of the test platform are designed in proportion according to the actual structure size or are subjected to linear scaling, the total water spraying flow of the water spraying device is k<2> times of the total actual water spraying flow, and the water spraying speed of the water spraying device is consistent with that of an actual product; and the simulated rocket body is fixedly installed on the test platform according to a preset test height, and produces fuel gas during a test, temperature, pressure, heat flow and noise in the test process are collected through sensors arranged on the simulated rocket body and the test platform, and the k is the ratio between the outer contour size of thesimulated rocket body and the outer contour size of the test platform to the actual structure size of the same.

The invention relates to a connecting-rod air-guide structure for the room unit of air conditioners, in which air-guide blades are connected by a connecting rod and controlled by a motor. When exhausting the air at the air outlet, the motor drives an air-guide rod to be in the reciprocating motion via the inventive connecting-rod air-guide structure, so as to drive the air-guide blades to be in the side-to-side movement for scavenging.

The invention relates to a high-efficiency integral aerating device for sewage treatment, belonging to the field of sewage treatment aerating equipment. The device is composed of an air compressor, a compressed air delivery pipe system, a water-surface water-jump aeration mechanism, an underwater blast aeration mechanism and an underwater stirring mechanism, wherein the water-surface water-jump aeration mechanism is aeration rotary-axe wheel rows which are communicated by connecting compressed air delivery branch pipes in series, and the aeration rotary-axe wheel rows are communicated with the upper parts of air delivery main pipes through the air delivery branch pipes and are arranged on the surface of a water body; the underwater blast aeration mechanism is microporous aeration circular pipes, and the microporous aeration circular pipes are communicated with the compressed air delivery main pipes through microporous radial-connecting pipes and are arranged in the water body; the stirring mechanism is stirring wheel rows which are communicated by connecting the compressed air delivery branch pipes in series, and the stirring wheel rows are communicated with the air delivery main pipes through the air delivery branch pipes and are arranged between the aeration rotary-axe wheel rows and the microporous aeration circular pipe groups and between upper and lower microporous aeration circular pipe groups respectively. A set of compressed air power source is adopted, dissolved oxygen in the water body is integrally, efficiently, synchronously increased and is quickly and uniformly distributed, and the aeration efficiency and the energy utilization rate are significantly increased.

The invention discloses a measuring device for D type auxiliary girder displacement and bridge pier inclination angle. The whole device is connected with existed components through anchor plates reserved with connecting threaded holes, the device comprises an external sleeve tube, an internal sleeve tube, a telescopic rod and a rotary lifting system, the telescopic rod is connected with the external sleeve tube, one end of the telescopic rod is anchored on the internal sleeve tube through an anchoring block of the telescopic rod, the internal sleeve tube rotates under the action of the telescopic rod through the rotary lifting system, a liquid box is arranged in the internal sleeve tube, the liquid box is provided with electrolyte and at least two electric pole rods, horizontal displacement is converted to inclination displacement through the rotary lifting system, the property that the liquid level maintains level is ingeniously used for indirectly measuring the displacement of an engineering structure through the variation of the length immersed in the electrolyte of the electric poles after the liquid obliques, the device has an inclination angle and displacement measuring function, the displacement measuring range is expanded by adjusting the length ratio of two sides of the pivot point of the telescopic rod, and therefore the device has a shock-absorbing controlling function.

The invention discloses a cold wall cooling device for a data center. The cold wall cooling device for the data center is mainly characterized in that a floor comprises anti-static floor blocks and ventilative floor blocks; a cabinet is arranged on the anti-static floor blocks; the ventilative floor blocks are arranged on the portions, corresponding to a cold air duct and a hot air duct, of a support correspondingly; fans are arranged below the ventilative floor blocks corresponding to the cold air duct; an outer frame of the cold air duct is connected with horizontal beams of the support through connecting pieces; surface air coolers are arranged under the floor, and each surface air cooler is connected with a water supply main pipe and a water return main pipe through a water supply branch pipe and a water return branch pipe; the water supply main pipe and the water return main pipe are connected with a refrigerating unit; the side, namely the air return side, facing the hot air duct of each surface air cooler is provided with a draught fan. According to the cold wall cooling device for the data center, tail-end air-conditioning refrigeration equipment does not occupy the building area of a data center computer room, the cabinet covering rate (CCR) is increased, and thus more server cabinets can be arranged in the same building area so as to increase the profits and incomes of the owner; meanwhile, the problems that air distribution in the computer room is not even, and the temperature of local parts of the cabinets is high are solved, and a good energy saving effect is achieved.

The invention discloses a method for distinguishing a coal spontaneous combustion dangerous zone by using goaf air leakage. The method includes the steps that 1, a monitoring opening is formed; 2, oxygen distribution in a goaf is monitored; 3, the step 2 is repeated for several times until the advance distance of the coal face reaches the specified advance distance; 4, SF6 tracer gas release device is mounted; 5, SF6 tracer gas and the oxygen distribution in the goaf are monitored; and 6, the air leakage speed is determined. According to the method, M air inlet side monitoring openings and theSF6 tracer gas release device are arranged on an air inlet side sampling protection pipe in an air inlet side gate road, N air return side monitoring opening are formed in an air return side samplingprotection pipe in an air return side gate road, the oxygen distribution in the goaf is monitored by using a gas chromatograph, a SF6 tracer gas determinator is used for determining distribution of the SF6 tracer gas, the air leakage condition in the goaf is monitored by double-gas, and then the coal spontaneous combustion dangerous zone is distinguished, and the degree of accuracy is high.

The invention discloses a high-precision AGV position sensing method based on binocular laser. The method comprises the following specific steps: step one, installing a laser navigation sensor; step two, installing a reflector; step three, calculating the coordinate and pose angle of a real-time laser navigation sensor A in a motion area, and acquiring the coordinate value of the current positionof the laser navigation sensor A; step four, acquiring a coordinate and a pose angle of a laser navigation sensor B; step five, acquiring the current coordinates and pose angles of the laser navigation sensor A and laser navigation sensor B after filtering; step six, acquiring the current coordinate position and the attitude angle of the center of a vehicle body; step seven, acquiring a deviationdistance delta I and a deviation angle delta theta; and step eight, calculating the deviation between the current pose of the AGV and a target path in real time, and adjusting an angular speed omega and a yaw angle of vehicle body driving in real time according to the deviation angle delta theta and the deviation distance delta I to complete AGV deviation rectification.

The invention discloses a method for controlling integral caving of a roof through deep-hole segmented blasting kerf, belongs to the technical field of blasting kerfs, can solve the problem of the coal seam roof suspension without caving. According to the technical scheme provided by the method, and the problem of strong strata pressure behavior caused by the coal seam roof suspension without caving in coal mining is solved. Deep hole blasting is conducted on a main roof stratum so that the roof can be prevented from caving immediately after blasting, the main roof stratum in a blasting section after blasting can form a pre-crack weak face with the inclination angle the same as the spontaneous collapse angle of the stratum along a drilling arrangement line, the integrity of a main roof stratum plate structure is cut off, the roof strata directionally caves along the pre-crack weak face under the action of gravity, so that the concentrated stress in front of a mining roadway and a coalwall caused by large-area roof suspension of the roof can be effectively reduced, the stress environment of the roadway is improved, and meanwhile, timely caving of the roof behind the working face avoids the situations of goaf air leakage, gas gathering and residual coal spontaneous combustion.

The invention discloses a novel coating pretreatment electrophoresis process and coating pretreatment electrophoresis equipment. The equipment comprises a chamber, a lifting mechanism, a travelling mechanism, a lifting appliance and a spray system. The equipment is characterized in that the spray system comprises a spray pipe, a water pump, a spray groove and a water running plate; when driving aworkpiece to enter a spray pipe area, the lifting appliance slowly travels; a plurality of nozzles are arranged on the spray pipe and controlled by a PLC to spray; and spray groove liquid is recoveredin the spray groove by the water running plate. The invention changes a traditional idea of a pretreatment electrophoresis line transmitted by a self-propelling hoist, favorably combines a continuousway and an intermittent way and sprays and leaches in the process of travelling; the travelling direction of the workpiece is perpendicular to the spray direction of the nozzles, and the arrangementnumber of the nozzles is reduced by the relative motion of the workpiece and the nozzles; and when the process control is simplified, the aim for solving the problems of overlarge spray generated in the transmitting process and a cleaning blind area existing in the spray process of the current self-propelling hoist is achieved.

The invention discloses an intelligent sprinkling irrigation system, which comprises a servo sprinkling irrigation water gun, a sprinkling irrigation controller, data acquisition equipment and a localdata terminal. When the intelligent sprinkling irrigation system is arranged properly, integrated sprinkling irrigation services can be provided for a certain city afforested area by use of the single intelligent sprinkling irrigation system, so that the arrangement amount of nozzles of sprinkling irrigation devices is effectively decreased, and water supply pipeline length is decreased while construction complexity is lowered. The intelligent sprinkling irrigation system operates according to data provided by an onsite meteorological station and a soil monitoring instrument, an irrigation process can be optimized according to operation instructions provided by a superior control terminal, irrigation efficiency can be improved while water saving is realized, and green space vegetation growth states can be improved.

The invention discloses an open steel tube and reinforced-concrete combined girder bridge structure. The structure comprises a concrete bridge deck slab, opening steel tube connecting pieces and multiple steel girders, each steel girder is provided with multiple steel tube connecting pieces, the concrete bridge deck slab is used for being erected on the steel girders, and the concrete bridge deck slab is provided with concrete pouring grooves matched with the steel tube connecting pieces and used for pouring concrete. The open steel tube and reinforced-concrete combined girder bridge structure is simple in structure, reasonable in design and convenient to construct. The structure has the advantages that the opening steel tube connecting pieces are simple in structure, convenient to manufacture and rapid to construct; by means of the opening steel tube connecting pieces, connection strength of the steel girders and the concrete bridge deck slab is increased, bearing areas of the connecting pieces are increased, and compared with bolt / screw connecting pieces, stress concentration can be effectively reduced; meanwhile, a single opening steel tube connecting piece is high in shear capacity, under the same situation, compared with the bolt / screw connecting pieces, a small number of opening steel tube connecting pieces are arranged, construction space is effectively saved, and it is beneficial to play the combination role of the concrete bridge deck slab and the steel girders.

The invention provides a method for selecting monitoring points for testing mechanical characteristics of a transmission tower. The method comprises the following steps: S1, according to a transmission tower structure design drawing, establishing a three-dimensional finite element model of the transmission tower; 2, calculating static parameters and generate static monitoring points based on thatthree-dimensional finite element model of the transmission tow; 3, calculating dynamic parameters and generate a dynamic monitoring point based on that three-dimensional finite element model of the transmission tower; S4, the optimal solution being obtained based on the genetic algorithm, and the suitable vibration monitoring points and strain monitoring points are selected from the static monitoring points and the dynamic monitoring points. The invention is based on the analysis of the stress points of the transmission tower and the mechanical analysis of the stress points, screens out a certain number of monitoring points, and realizes the proper selection of the number and the position of the monitoring points on the premise of ensuring the accuracy of the monitoring results.

The invention relates to a while-drilling advanced forecasting apparent resistivity measuring system and method. The while-drilling advanced forecasting apparent resistivity measuring system comprises a magnetic-dipole antenna installed in a drilling rig, a plurality of receiving electrodes distributed in surrounding rocks around a drill hole and an on-site main machine connected with the multiple receiving electrodes. The magnetic-dipole antenna is used for automatically outputting pulse electromagnetic waves in real time in the process of advancing in the drill hole along with the drilling rig and forming induced electromagnetic fields in the different-depth surrounding rocks around the drill hole; the receiving electrodes are used for real-time receiving of electric signals generated in the different-depth surrounding rocks around the drill hole by the induced electromagnetic fields; and the main machine is used for processing the electric signals received by the multiple receiving electrodes and obtaining the apparent resistivity of the different-depth surrounding rocks around the drill hole. According to the while-drilling advanced forecasting apparent resistivity measuring system and method, detection precision of geophysical exploration can be improved, the control range of advanced hole exploration can be increased as well, detection efficiency of advanced hole exploration can be improved, and the quantity of the arranged drill holes is reduced.

The invention belongs to the technical field of engines, and specifically relates to a double-ECU control device for a V type engine, and a control method for controlling the V type engine through thedouble-ECU control device. The double-ECU device comprises cam shaft signal plates, a first rotating speed sensor, a second rotating speed sensor, a first ECU controller and a second ECU controller,wherein the cam shaft signal plates are arranged on a cam shaft and can be rotated together with the cam shaft; the first rotating speed sensor and the second rotating speed sensor are arranged on theouter side surfaces of the cam shaft signal plates; the first rotating speed sensor can be electrically connected to the first ECU controller; and the second rotating speed sensor can be electricallyconnected to the second ECU controller. With the adoption of the double-ECU control device for the V type engine and the control method, the quantity of arranged cam shaft signal plates are decreased; the detecting accuracy is improved; and the manufacturing cost is decreased.

The invention discloses a system and method for detecting a launching force thermal environment of a carrier rocket. The system comprises a plurality of force-thermal environment combination detectionunits capable of simultaneously measuring pressure, temperature, heat flow, acceleration and strain, wherein the force-thermal environment combination detection units are correspondingly arranged ata center position of a boosting rocket engine combustion gas stream core region boundary, in a launching platform tabletop combustion gas stream diffusion zone, on a core-stage rocket engine combustion gas stream core region boundary, on the core-grade flow guide hole wall, on the boosting flow guide hole wall, on a flow guide cone and in a flow guide groove. According to the system, the arrangement position and arrangement number of array sensors can be greatly reduced, and the on-site construction workload and the protection workload are reduced; and meanwhile, the sound vibration coupling damage of combustion gas stream strong noise to electrical components of a detection sensor and a front-end amplifier is reduced.

The invention relates to an accurate determination method of a vehicle driving path in a road network. An entity base station and a computer system are included. And the method comprises the following steps that: (1), numbering is carried out on all road sections in a whole road network with unique codes in the computer system; (2), a virtual base station is laid at any road section of the road network and entity base stations are laid at any other road sections, wherein the any other road sections are connected at two ends of the road section; and according to the above-mentioned laying rule, laying of the whole road network is completed; and (3), an entity base station number that is determined by the entity base station and a vehicle passes by during the driving is introduced into the computer system; and according to the laying rule of the entity base stations and the virtual base stations, it is concluded that at least one virtual base station is arranged between two adjacent entity base stations and thus a whole vehicle driving path is accurately reckoned. According to the invention, the used system has a simple structure; the laying number of the entity base stations is lowered; and whole investment cost and maintenance cost are reduced; therefore, the provided method is a reliable accurate determination method of a vehicle driving path in a road network.

The invention discloses a gravity-heat-pipe-combined stand pipe indirect evaporative cooling water chilling unit which comprises a unit housing. An upper air flue and a lower air flue distributed up and down are formed in the unit housing; the upper air flue is structurally characterized in that exhaust outlets a are formed in two opposite side walls of the unit housing; the lower air flue is structurally characterized in that air inlets are formed in the two opposite side walls of the unit housing; a direct-indirect evaporative cooling unit is arranged in the center in the lower air flue; gravity heat pipes are symmetrically arranged on the left side and the right side of the direct-indirect evaporative cooling unit; evaporation sections of the gravity heat pipes are located in the lowerair flue; condensation sections of the gravity heat pipes are located in the upper air flue; coarse filtering sections are arranged between the evaporation sections of the two gravity heat pipes and the air inlets in the corresponding sides; and an exhaust outlet b is formed in the top wall of the lower air flue corresponding above the direct-indirect evaporative cooling unit. According to the evaporative cooling water chilling unit provided by the invention, multiple running modes can be switched according to the weather conditions, so that the power consumption of the equipment is reduced.

The invention discloses a wing-plate horizontal three-phase separation device and a separation method thereof. The wing-plate horizontal three-phase separation device comprises a pre-separation tube and a separation dehydration container; the lower part of the separation dehydration container is partitioned into an oil-water separation chamber and an oil chamber by an oil overflow weir plate, andthe upper part is a gas phase space, and a large dip angle folio wing plate body is arranged in the oil-water separation chamber. After processing the three-compound combination flooding ultra-high water-containing oil-gas-water mixture by adopting the wing-plate horizontal three-phase separation device and the separation method disclosed by the invention, the water content of the outlet oil doesnot exceed 10%, and the oil content of the outlet water does not exceed 1000mg / L, the processing capacity and the efficiency are about doubled in comparison with the conventional three-phase separator; the processing effect is much better than the conventional three-phase separator, the equipment cost of the unit processing liquid volume is reduced by 30-70%, the sediment deposition is avoided, and the separation device can be efficiently used for a long time.

The invention provides a laser-radar-based positioning method in a corridor environment, a computer storage medium and an electronic device. The method comprises: S1, acquiring an initial pose of a laser radar; S2, acquiring a coordinate of a reflector board inside a corridor; S3, acquiring an orientation angle of laser emitting by the laser radar and marking the orientation angle as yaw; S4, calculating a coordinate of the laser radar according to the orientation angle yaw of the laser radar and the coordinate of the reflector board; and S5, updating the coordinate of the laser radar and skipping to the S2. According to the invention, with fusion of advantages of the scanning matching method and reflector board positioning method, a problem of positioning failure in the corridor environment according to the scanning matching method is solved. Moreover, positioning can be carried out only by detecting one reflector board; and Compared with the traditional reflector board positioning scheme, the provided positioning method enables the layout number of reflector boards in the environment to be reduced substantially. Meanwhile, the reflector board is arranged based on a simple rule; the method is easy to realize; and the positioning effect is not easily affected by the arrangement of the reflector board.

The invention relates to a method for optimizing the layout of sudden pollution distribution detection points of a central air conditioning duct system. The method comprises the following steps: building a network dynamics model of a central air conditioning duct system; randomly generating a detection point layout position set as an initial population; with minimizing the time for pollutant detection in the network dynamics model as an objective function, optimizing the generated initial population through a genetic algorithm; and taking an optimization result obtained as the layout scheme of sudden pollutant distribution detection points of the central air conditioning duct system. Compared with the prior art, the method has the advantages of optimal layout of detection points, shortest detection time for pollution, and cost saving.

The invention relates to an ultrahigh and huge steel structure vibration attenuation integrated system. The ultrahigh and huge steel structure vibration attenuation integrated system is applied to a super high-rise building and comprises ultrahigh and huge steel structure units and vibration attenuation device units arranged on the ultrahigh and huge steel structure units, wherein each ultrahigh and huge steel structure unit consists of a main structure sub-unit and a secondary structure sub-unit arranged on the main structure sub-unit, the main structure sub-unit comprises a huge steel frame and a steel core cylinder arranged in the huge steel frame, the huge steel frame consists of multiple huge columns and annular belt trusses arranged on the huge columns, and each vibration attenuation device unit comprises a viscous damping mechanism and / or tuning vibration attenuation mechanism. Compared with the prior art, the ultrahigh and huge steel structure vibration attenuation integrated system has good structural economy and air vibration comfort level, is high in structural efficiency, strong in structural wind resistance and anti-seismic property, low in structural steel consumption, flexible in building arrangement, high in construction speed, high in in vibration attenuation efficiency and the like.

The invention discloses a seismic energy dissipation system for a T-shaped lever mechanism extended arm truss. The seismic energy dissipation system comprises an extended arm truss arranged between acore tube and a frame column, wherein the end of the extended arm truss is connected with a damping mechanism hinged by a T-shaped lever and a damper; one end of the T-shaped lever is hinged with theouter end of the extended arm truss, and the other end of the T-shaped lever is hinged with the frame column; the lower end of the T-shaped lever is hinged with the damper; the extended end of the damper is hinged to the outer end of the extended arm truss. By meeting the relationship between the T-shaped lever and damper connecting length and height and the height of the extended arm truss and alength of an upper chord of the extended arm truss extending from the core tube, an amplification effect of the extended arm lever is achieved so as to improve the energy dissipation efficiency of thedamper. The displacement amplification factor of the seismic energy dissipation system can reach about 10.0. The system disclosed by the invention is excellent in damping effect and high in working efficiency.