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1219results about How to "Increase or decrease quantity" patented technology

Damping ratio adjustable tuning quality damper

ActiveCN101457554AChange the damping ratioDamping Ratio OptimizationSpringsSolid based dampersDamping ratioEngineering
The invention specifically relates to a mass tuned vibration reducer used for regulating the subsidence ratio of the vibration of the related structures. The mass tuned vibration reducer comprises a mass block, a spring, a damper and a base, and is characterized in that the damper is an adhesion-type damper formed by a damping cylinder, adhesive damping fluid and a piston, wherein, the piston and the adhesive damping fluid are arranged in the damping cylinder, and at least part of the piston is immerged into the adhesive damping fluid. The mass tuned vibration reducer adopts the adhesion-type damper formed by the adhesive damping fluid and the piston and can provide three dimensional damping, so as to effectively prevent side tumbling and ensure the vibration reducer realizes smooth actions; vibration mass is not needed to be provided with a special guide device, so that the mass tuned vibration reducer has reliable work and higher cost performance, and basically needs no maintenance. Meanwhile, the mass tuned vibration reducer realizes the aim of regulating the natural frequency and the subsidence ratio at any time, thus better exerting the vibration absorption performance of the mass tuned vibration reducer, ensuring stableness and safety of the pedestrians and vehicles on the large-span bridge and the thin and high building, contributing to prolonging the service lives of the thin and high building and the bridge, and having remarkable economic and social benefits.
Owner:尹学军 +1

Household security system

The invention provides a household security system which comprises a home gateway, sensors and a zigbee wireless transceiver, wherein the zigbee wireless transceiver is used for providing information interchange between the sensors and the home gateway; the home gateway comprises a central processor and further comprises a camera interface for connecting a camera, a UART (Universal Asynchronous Receiver / Transmitter) serial port interface, an Ethernet interface, an SPI (Single Program Initiation) interface, an LCD (Liquid Crystal Display) interface and an I / O (Input / Output) interface which are arranged on the central processor; the central processor comprises a master chip s3c6410 based on an ARM11 framework and a peripheral circuit; the camera interface is a USB (Universal Serial Bus) interface capable of connecting a USB camera; the UART serial port interface is connected to a MC35iGSM module; the I / O interface is connected to a voice alarm; and the sensors comprise a fire detector, an antitheft detector and a gas detector. A complex wiring process for mounting the household security system is omitted, thereby realizing multi-point and remote transmission of security information, promoting safety and reliability as well as hidden performance of the household security system, and lowering the cost.
Owner:GUANGDONG UNIV OF TECH

Simple fixing and clamping device of large-sized wallboard

The invention discloses a simple fixing and clamping device of a large-sized wallboard. The height of suction cup devices is adjusted by the self weight of the wallboard, and all vacuum suction cups are in contact with the wallboard sufficiently. The height of adjusting springs of the fixing and clamping device can be adjusted automatically to adapt to a molded surface shape of a workpiece, and when the wallboard is sight, an external load can be conducted; the fixing and clamping device can increase and decrease the number of the suction cup devices for fixing and clamping a wallboard curved face with different sizes and different shapes, and the fixing and clamping device has good universality and good flexibility. An air compressor is connected with a vacuum generator, and the vacuum generator is connected with the suction cup devices through vacuum rubber pipes; by controlling the air exhaust of the air compressor, negative pressure is generated in the vacuum suction cups, the clamp force is formed, and the wallboard is sucked to the fixing and clamping device. When the processing of the wallboard is completed, the air compressor is controlled to make the negative pressure in the vacuum suction cups change into zero pressure or positive pressure, and the vacuum suction cups are departed from the wallboard automatically. The fixing and clamping device is simple in structure, good in compatibility and can adapt to part processing and forming of the wallboard of different curvature of surface changes.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Equipment and method for cleaning current-resistance submerged cage netting

The invention discloses equipment for cleaning a current-resistance submerged cage netting and a method for cleaning the current-resistance submerged cage netting. The cleaning equipment is characterized in that a current-resistance submerged cage comprises a circular cage floating collar and a netting installed on the cage floating collar; a guardrail tube is installed at the top of the cage floating collar, a floating collar track is installed on the cage floating collar through a first movable fixing support platform, a cleaning trolley with a cleaning shower is installed on the floating collar track, and the cleaning shower is connected with a movable host platform which can provide high-pressure water, electric energy and high pressure gas. According to the cleaning equipment, when the netting is cleaned, each position of the netting can realize the cleaning effect of 'cleaning with a hairbrush-flushing with high pressure water-cleaning with the hairbrush', the cleaned netting can be effectively ensured in cleanliness, meanwhile the cleaning effect can be achieved when relevant cleaning equipment is in a progressive process, and thus the cleaning equipment and the cleaning method are relatively high in efficiency.
Owner:JIANGSU UNIV OF SCI & TECH

Telemetering monitoring method and system of multiparameter automatic early warning and rapid positioning response

The invention discloses a telemetering monitoring method and system of multiparameter automatic early warning and rapid positioning response. The system is composed of a portable monitor carried by a patient, a hospital center monitoring system, a doctor intelligent query terminal, a wireless communication network and the like. The telemetering monitoring method and system of the multiparameter automatic early warning and rapid positioning response are characterized in that 1, accurate positioning on the patient is achieved through a regional positioning function in an inpatient area, and by means of an electronic fence technology, anti-lost and border-crossing alarm for the patient is achieved; 2, a multidimensional pre-warning mechanism comprises automatic monitoring of electrocardio, blood oxygen and breathing of the patient and threshold alarm, automatic alarm of falling of the patient and active alarm of an SOS call; 3, by means of the rapid response function, medical staff can understand the factual condition of the patient at any time such as a ward round and in any place such as a monitoring center, an office and even outside a hospital; 4, monitoring frequency is increased and decreased flexibly, and additional cable laying or system updating is not needed. According to the telemetering monitoring method and system of the multiparameter automatic early warning and the rapid positioning response, a passive monitoring system is changed into an active monitoring system, and the telemetering monitoring method and system of the multiparameter automatic early warning and the rapid positioning response can be applied to hospitals, nursing homes, communities and other areas where patients and old people are concentrated.
Owner:成都瑞迪康医疗科技有限公司

Method for qualitatively and quantitatively analyzing edible oil and further detecting hogwash oil

The invention discloses a method for qualitatively and quantitatively analyzing edible oil and further detecting hogwash oil. The method comprises the following steps of: establishing a fatty acid multivariable model of an oil sample by utilizing FT-NIR (Fourier Transform-Near Infrared), FT-IR (Fourier Transform-Infrared) or Raman spectrum data; generating quantitative and qualitative marking parameters by the multivariable model, wherein a modularized database is formed by the marking parameters; finally, qualitatively and quantitatively analyzing the edible oil and further detecting the hogwash oil by comprehensively analyzing one or more quantitative and qualitative marking parameters in the database. According to the method disclosed by the invention, an initiated 'mixed edible oil scoring pattern' method can be used for roughly and rapidly judging components of the mixed edible oil or the suspected hogwash oil.
Owner:骆驰 +1

Electronic sand table system and method

The invention relates to a sand table, in particular to an electronic sand table and method. An electronic sand table system is strong in stereoscopic impression, visual in image, capable of simulating various landforms and urban environments vividly. The electronic sand table system comprises a scene establishment module (1), a calculation module (2), a control module (3) and a demonstration module (4). The demonstration module (4) comprises a display matrix (401) composed of a plurality of columnar display units (4011). The top plane and each side face of each columnar display unit (4011) are display screens. Through ascending and descending of the columnar display units, simulation of the landforms and simulation the shapes of ground objects are achieved. Through the display screens of the columnar display units (4011), colors and textures of the landforms and the ground objects are simulated. The electronic sand table system is realistic in effect, strong in stereoscopic impression, capable of simultaneously describing the shape and the texture of each three-dimension scene in detail, flexible in operation, capable of enabling a sand table design scheme to be adjusted dynamically and achieving real-time and synchronous display, convenient to update, and good in expandability.
Owner:王飞

485 bus type monitoring system and its high extendibility method

The invention discloses a 485 bus monitoring system and a high expansibility method thereof, comprising a main device node and a slave device node. Without the additional artificial configuration, the main device node monitors an adding system and a withdrawing system of the salve device node. The quantity of the device nodes is increased or reduced flexibly or the hot-swap is implemented. Conflicts of device addresses and recognizing problems of the main device node are not needed to be considered. Therefore, the high expansibility and the adaptability of the controlled nodes in the 485 bus monitoring system are realized. The method solves the inconveniences of the node configuration in the 485 bus monitoring system and the weakness that the expansibility of the system is not strong.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Method and system for implementing bidirectional auto scaling service of virtual machines

The invention discloses a method and a system for implementing the bidirectional auto scaling service of virtual machines. According to the method, the bidirectional auto scaling service requests monitoring data from a monitoring service, the monitoring service monitors application service virtual machine clusters and feeds the monitoring data back, and meanwhile, a load balancing service loads application requests on different application service virtual machines; according to configuration parameters and the feedback monitoring data, the bidirectional auto scaling service determines whether to perform virtual machine cluster scaling and determines to perform the virtual machine cluster scaling in a transverse mode or a longitudinal mode; when required, the virtual machine cluster scaling is performed by calling virtualization service interfaces, the transverse mode comprises start-stop control of the virtual machines, and the longitudinal mode comprises sequentially and dynamically adjusting computing resources and storage resources of the virtual machines according to the serial number of the virtual machines. By means of bidirectional auto scaling, the method and the system for implementing the bidirectional auto scaling service of the virtual machines can automatically adjust the resources of the virtual machines as well as the number of the virtual machines, thereby being more flexible to serve for applications and support application running in all directions.
Owner:无锡中科方德软件有限公司

Multiple-disc type magnetorheological brake

The invention relates to a multiple-disc type magnetorheological brake which mainly comprises a transmission shaft, a wheel hub, a drive friction plate group, a driven friction plate group, inner and outer magnetic isolation rings, an exciting coil with a U-shaped iron core, magnetic-conducting side plates and a magnetic isolation casing. A sealing ring is used for sealing magnetorheological fluid between the drive friction plate group and the driven friction plate group; the drive friction plate group and the driven friction plate group are respectively sleeved on the magnetic isolation rings and the wheel hub through splines; the drive friction plate group is separated from the driven friction plate group by the inner magnetic isolation ring and the outer magnetic isolation ring; the exciting coil with the U-shaped iron core is directly spliced in iron core jacks of the magnetic conducting side plates; and the braking torque can be changed through changing the current intensity of the coil. When the braking torque is not enough, the quantity of friction plates can be increased or the quantity of the exciting coil with the U-shaped iron core can be increased to adapt to the big torque braking. The multiple-disc type magnetorheological brake has the advantages that the structure is compact, the braking torque is big, the assembly and the disassembly are convenient, the coil is easily used for radiating the heat, and the number of turns wounded by the coil is more.
Owner:CHINA UNIV OF MINING & TECH

Snake-shaped robot

InactiveCN1373029AGuaranteed flexibilityIncrease or decrease the number of nodes at willManipulatorCooling UnitsShape-memory alloy
A snake-shaped robot for finding failure in long pipeline and searching people or object in accident is composed of snake head, snake tail and several segments which has the drive unit consisting of ordinary steel wire spring and shape memorizing alloy (SMA) spring, telescopic legs, and heating or cooling unit.
Owner:LIAONING TECHNICAL UNIVERSITY

Method and device for grouting in hole and effectively stopping grout

The invention discloses a method for grouting in a hole and effectively stopping the grout. The method is divided into two main action processes, namely grouting and stopping the grount and comprises the following steps: drilling a hole, grouting, expanding with an expansion rubber plug, grouting and disassembling. The device for realizing the method for grouting in the hole and effectively stopping the grout comprises a grout inlet pipe (1), a grout pipeline, an expansion stop-grouting plug (11) and a single-way pressure valve (14) which are sequentially connected, wherein the grout pipeline and the expansion stop=grouting plug (11) as well as the expansion stop-grouting plug (11) and the single-way pressure valve (14) are connected by joints. The technology can stop the grout at any section in the grouted hole with good effect. Besides, steel grout transmission pipes can be conveniently removed from the device, thereby reducing the waste of the materials while ensuring the grout stopping effect.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +1

Load balancer based management system and management method for cloud computing data center

The invention discloses a load balancer based management system and management method for a cloud computing data center. The management system comprises an elastic node pool cluster, a load balancer cluster and a management apparatus, wherein the elastic node pool cluster comprises a plurality of elastic node pools, each elastic node pool comprises a plurality of virtual machines, and the virtual machines are used for externally providing services through virtual IPs; the load balancer cluster comprises a plurality of load balancers, and each load balancer is connected with a set number of the elastic node pools and used for providing a load balance service for each elastic node pool connected with the load balancer; and the management apparatus is used for managing the load balancers and the elastic node pools and dynamically adjusting the number of the virtual machines in the elastic node pools by adopting a preset load balance policy according to a load state of each elastic node pool. According to the load balancer based management system and management method, the number of the virtual machines in the elastic node pools is automatically increased or reduced, so that business jamming and system resource waste are avoided.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Constant-pressure multiple-effect evaporation condensation sea water desalination device with air medium

The invention discloses a constant-pressure multiple-effect evaporation condensation sea water desalination device with an air medium, which mainly comprises a low-and-medium temperature heat source (13), a first-stage heating evaporator (14), an evaporation condenser (4) and a last-stage condenser (8). The first-stage heating evaporator (14), the evaporation condenser (4) and the last-stage condenser (8) are installed in sequence closely, and the low-and-medium heat source (13) and the first-stage heating evaporator (14) are connected together. The first-stage heating evaporator (14), the evaporation condenser (4) and the last-stage condenser are all formed by combining a plurality of heat exchange plates which are arranged from left to right in sequence, and a gap is reserved between every two adjacent heat exchanging plates to form a flow channel for heat exchange fluid. By adopting the plate-type heat exchange principle, the sea water desalination device realizes multiple-effect air humidification and dehumidification evaporation and condensation for sea water desalination under constant pressure. Heat and moisture transfer is performed between sprayed sea water and overflowing air, and the condensation latent heat of fore effect heat and moisture air can be absorbed at the same time, and therefore, energy recovery is realized and the fore effect heat and moisture air can be condensed to obtain fresh water.
Owner:GUANGDONG FIVESTAR SOLAR ENERGY

Distributed data batch processing system and method

The present invention discloses a distributed data batch processing system and method. In the system and method, a task scanning module in a main node can calculate expendable weight of each task, a task scheduling distribution module in the main node can calculate and obtain specific task expendable weight distribution proportion among tasks distributed to each service node according to the task expendable weight in a single batch task queue and queue length description and expendable weight rates in service node queues, and the specific task expendable weight distribution proportions can enable sources of each service node to be fully utilized and basically uniformize the time consumed by processing the task distributed to each service node by the service node. Accordingly, tasks are distributed to each service node according to the specific task expendable weight distribution proportions, the sources of the service nodes can be fully utilized when the service nodes are processing the tasks, resource waste is prevented, and each service node can basically process the distributed task at the same time.
Owner:BANK OF CHINA

Performance lamplight power supply system

The invention relates to a power supply system, and particularly relates to a performance lamplight power supply system applicable to special light utilization fields such as a movie, a theatre a stage. The performance lamplight power supply system comprises a power supply distribution system and a plurality of area power distribution boxes; the power supply distribution system is used for receiving an external power supply and distributing the external power supply to the area power distribution boxes; each area power distribution box is used for supplying power supply to electric equipment in a pre-set power supply area; each area power distribution box is connected with a socket module group or a plurality of socket module groups; each socket module group comprises one or more than one socket module; and the area power distribution box is connected with the socket modules through a multi-core cable for transmitting three-phase alternating-current power, and the socket modules are connected through the multi-core cable for transmitting the three-phase alternating-current power. The limitation of the traditional thought is broken by using the system. An engineer can rapidly adjust the quantity, power and position of lamplight adjusting equipment according to actual demands by means of supplying power through diffused area power and placing diming control to a lamp position terminal, so that the design of the lamplight system and the installation sensitivity can be greatly improved, and the engineering cost and the installation difficulty can be reduced.
Owner:GUANGZHOU LEAFUN CULTURE SCI & TECH

Control method of intelligent clothing suspension system

ActiveCN103734964AAvoid inefficiencies in productionSimplified logic control methodClothes making applicancesEmbedded systemAutomatic control
The invention discloses a control method of an intelligent clothing suspension system. According to the control method, the readable-writable IC card data technology is adopted, and the readable-writable IC card data technology is matched with other software / hardware control technologies to realize automatic control on circulation of clothes hangers of the intelligent clothing suspension system between various steps. The method is characterized in that the IC card information of the clothes hangers and a push rod are classified into different types, the information is collected and written in through a come-into-station read head and a come-out-of-station read head, and the circulation of the clothes hangers between a main track and each workstation is realized according to requirements under the combined action of a controller, a terminal and a data acquisition program. The control method of the intelligent clothing suspension system is high in adaptability and intellectualization degree; the complexity of the system is effectively reduced by virtue of the readable-writable technology; the system is high in safety, and the work of the whole system cannot be affected by the fault of one workstation.
Owner:HUIZHOU TECHZEN IOT SCI & TECH CO LTD

Artificial muscle aggregation group

The invention relates to an artificial muscle aggregation group, which is formed by a plurality of muscle units connected in series, wherein each muscle unit comprises a plurality of springs as artificial muscles, a front connecting plate and a rear connecting plate which are respectively and fixedly connected with two ends of the springs; the springs are respectively and uniformly distributed along the surfaces of the connecting plates; each spring is internally provided with a guiding-locking mechanism in a penetrating manner; the two ends of the guiding-locking mechanism are respectively and fixedly connected with the front connecting plate and the rear connecting plate; the guiding-locking mechanism consists of a sleeve and a piston which is sheathed in the sleeve in a slidable manner; one end hidden in the sleeve, of the piston is provided with a circular convex ring; one end allowing the exposure of the piston, of the sleeve is provided with a step for preventing the convex ring from separating from the sleeve; the muscle unit at the foremost end and the muscle unit at the rearmost end are respectively connected with a high-strength fiber; and the artificial muscle aggregation group is also internally provided with a chaotic characteristic testing module which can judge whether the chaotic action exists currently and whether the output of displacement or tension of the artificial muscle aggregation group is qualified. The artificial muscle aggregation group has the advantages that the output of the tension or the displacement amount is large, and the output quality is guaranteed.
Owner:ZHEJIANG UNIV OF TECH

Gas filter device

The invention provides a gas filter device, belonging to environmentally-friendly facility. The device comprises an air inlet pipe, a gas extraction filter device, an absorption liquid circulating and draining device, an absorption liquid level control device and an electric appliance control and display device, wherein one end of the air inlet pipe extends into the middle part in a gas filter tank of the gas extraction and filter device, and extends upwards out of the surface of the absorption liquid; the gas extraction filter device is connected with the absorption liquid circulating and draining device and the absorption liquid level control device; the gas extraction and filter device comprises a wet filter tank, a dry type filter cylinder, a draught fan and a muffler; a solid-state substance settlement plate, an impact cap, a diversion angle and a filter plate are arranged in the wet-type filter tank; and the dry type filter cylinder, the draught fan and the muffler are arranged in a gas exhaust cylinder on the upper part of the wet filter tank in sequence. The gas filter device achieves the aim of waste gas filter by the technology of wet and dry double filtration.
Owner:赵艳萍

Method and system for customizing applications and displaying application information

The invention is suitable for the field of mobile terminals, and provides a method and a system for customizing applications and displaying application information and a mobile terminal. The method for customizing the applications comprises the following steps of: receiving an application which is selected by a user and is required to be loaded to a main interface after the mobile terminal is started; writing the application selected by the user and the configuration information thereof in an application starting file; when the mobile terminal is restarted, reading the application starting file; loading the application and the configuration information thereof stored in the application starting file to a memory; and displaying the application on the main interface. Through the method, the user can freely increase or decrease the number of the applications required to be loaded to the memory according to requirements, and freely increase, decrease or change application icons on the main window interface of the mobile terminal. The method for displaying the application information can make the user quickly view the running and configuration information of all the loaded applications in the mobile terminal.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

In-situ test device and method for testing shear strength and long-term creep deformation of rock sample

ActiveCN109163985ASolve load application dynamics problemsAddressing deficiencies in long-term shear creep studiesMaterial strength using steady shearing forcesMechanical solid deformation measurementsCement slurryHorizontal shear
The invention discloses an in-situ test device and method for testing the shear strength and long-term creep deformation of a rock sample. A test platform is cut in a region where the surrounding rockis located, and a shear rock sample, a flat surrounding rock surface and an upper surrounding rock are arranged on the surrounding rock; a horizontal shear box is arranged at the top of the flat surrounding rock surface and on a side of the shear rock sample; a horizontal shear device is arranged between the horizontal shear box and a side wall of the shear rock sample; a vertical load loading box is arranged on the lower end surface of the upper surrounding rock, and a vertical shear device is arranged between the lower end surface of the vertical load loading box and the shear rock sample;the horizontal shear device and the vertical shear device are of the same structure, and are powered by expanded cement slurry. The self-expansion property of the expansion agent is innovatively usedto provide a load source for in-situ shear test on site, and the expansion load is transmitted to the on-site rock sample through a loading probe of a dumbbell-shaped shear rod by means of expansion force generated by the expanded cement slurry to measure a shear strength index on a specific shear plane.
Owner:重庆市璧山区江源机械有限公司

Electric machine stator wire bar multifactor ageing device and method

The invented aging device and aging method for investigating the aging rule, the life test and quality analysis of the insulation of the stator wire bar. The invented device can apply the aging stresses of the electricity, heat, mechanism as well as the thermal and mechanical stress to the wire bar tested so as to simulate the aging process of the sample of the stator wire bar without damaging the sample. The transformer provided the electric aging factor. The heating plate provides the thermal aging factor. The temperature control device controls the thermal aging temperature. The vibration generator provides the vibration stress. Adjusting the output waveform of the signal generator can change the mode of the vibration. The heating and cooling cycles can be scheduled. Thus, the four aging stresses can be combined in order to meet different aging requirement.
Owner:XI AN JIAOTONG UNIV

Image processor for mosaic screen

The invention discloses an image processor for a mosaic screen. The image processor comprises a plurality of video input modules and a plurality of video output modules, wherein the video input modules are used for receiving external video signal input; the video output modules are used for outputting video signals to display units of the mosaic screen; the video input modules are sequentially connected in series; the video output modules are sequentially connected in series; and the video input module of the last stage is connected in series with the video output module of the first stage. The number of the video input module can be flexibly increased or decreased according to the number of video paths to be connected, and the number of the video output modules can be flexibly increased or decreased according to the number of display units to be driven. When a certain video image processing sub-module in the video input module or video output module of a certain stage fails, data also can be transmitted through another video image processing sub-module in the video input module or video output module of the stage, so that the whole mosaic screen can run.
Owner:NINGBO GQY VIDEO &TELECOM

Construction support and method for overhead large-span heavy-duty cross beam

The invention discloses a construction support and method for an overhead large-span heavy-duty cross beam. The construction support comprises a lower bracket supporting structure, an upper bracket supporting structure located above the lower bracket supporting structure, and a middle supporting structure with the bottom supported on the lower bracket supporting structure. The top face of the upper bracket supporting structure is flush with the top face of the middle supporting structure, and the upper bracket supporting structure and the middle supporting structure form a temporary supporting platform for supporting the cross beam to be constructed. A load bearing structure is erected on the temporary supporting platform. The construction method comprises the steps that firstly, the lower bracket supporting structure is installed; secondly, the upper bracket supporting structure and the middle supporting structure are installed; thirdly, the load bearing structure is erected; fourthly, the support is prepressed; fifthly, the upper cross beam is constructed; and sixthly, the support is removed. According to the construction support and method, design is reasonable, construction is easy and convenient, the using effect is good, and the problems that as for an existing floor steel pipe supporting system, cost is high, the erection process is complex, the construction period is long, the construction risk is high, the requirement for supporting stability is high, and the construction progress of the upper cross beam is affected can be effectively solved.
Owner:CHINA RAILWAY FIRST GRP CO LTD +2

Laser beam coupling output device for high-power semiconductor

The invention relates to a multi-beam coupling output device for a high-power semiconductor laser system, belonging to the technical field of laser. With respect to the device, light with two wavelengths, which is respectively emitted by a first semiconductor laser array and a second semiconductor laser array, is subject to wavelength coupling by using a wavelength coupler, thus obtaining a beam with two wavelengths; light with two wavelengths, which is respectively emitted by a third semiconductor laser array and a fourth semiconductor laser array, is subject to wavelength coupling by using the wavelength coupler, thus obtaining a beam comprising two wavelengths; and the two beams respectively with two wavelengths are combined by a polarization coupler to finally obtain a combined beam, and the combined beam is output. The coupling output device has more reasonable structure, smaller volume, good controllability and lower cost, and is easy to process.
Owner:BEIJING UNIV OF TECH

Wireless long-distance fault diagnosis system based on multiple-sensor information fusion

InactiveCN104571079AOptimize layoutShort construction period for nettingElectric testing/monitoringWireless transmissionLow-pass filter
The invention relates to a wireless long-distance fault diagnosis system based on multiple-sensor information fusion. The system comprises an industrial personal computer, a wireless transmission unit and a control unit, wherein the wireless transmission unit is used for connecting the industrial personal computer and the control unit; the control unit comprises a monitoring server, analog-digital converters, active low-pass filters and multiple data sensors; the multiple data sensors are connected with the monitoring server through the respective active low-pass filters and the analog-digital converters; the monitoring server is used for receiving the data of the analog-digital converters, performing analysis and process on acquired information based on the multiple-sensor information fusion technology of the BP neural network algorithm and performing judgment and process on the acquired information according to a fusion database and an expert knowledge base, wherein the previously recorded sensor data collection set is stored in the fusion database, and parameter record of all sensors, corresponding to known motor failure modes, is stored in the expert knowledge base. The system can improve the feasibility and accuracy of fault diagnosis.
Owner:DONGHUA UNIV

Microchannel liquid cooling cold plate

The invention discloses a microchannel liquid cooling cold plate which comprises a cold plate base body, wherein an internal channel is formed in the cold plate base body and comprises a channel inlet, a channel outlet and at least one microchannel unit; the microchannel unit communicates with the channel inlet and the channel outlet; cooling liquid enters from the channel inlet, passes through the microchannel unit and flows out of the channel outlet; the horizontal cross section of the microchannel unit is butterfly-shaped; and the channel inlet and the channel outlet communicate with the external environment. The microchannel liquid cooling cold plate is designed by adopting bionics, imitates a butterfly wing microchannel unit, changes the flowing direction and manner of cooling liquidand increases the turbulent flow degree through reasonable flow distribution, reduces the thickness of a boundary layer, and improves and intensifies the thermal homogeneity and the heat exchanging efficiency of a heated surface.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
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