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645 results about "Mature technology" patented technology

A mature technology is a technology that has been in use for long enough that most of its initial faults and inherent problems have been removed or reduced by further development. In some contexts, it may also refer to technology that has not seen widespread use, but whose scientific background is well understood. Its performance characteristics are also expected to be well understood with well-established design specifications.

Intelligent venous transfusion monitoring system

The invention provides an intelligent venous transfusion monitoring system, which comprises a PC, a ward-level controller, sickbed-level controllers, infusion supports and a handheld alarming device, wherein the ward-level controller is arranged according to a ward number; the ward-level controller performs wireless communication with the sickbed-level controllers correspondingly arranged in the ward with the ward number; the ward-level controller is connected with the PC by an Ethernet for communication; and each infusion support is provided with a sickbed-level controller correspondingly. The system has the advantages of realizing 24 hour monitoring, avoiding errors made by medical-care personnel due to mistake or fatigue, reducing the labor intensity of the medical-care personnel and making up for the disadvantage of incapability of the medical-care personnel for 24 hour monitoring. In the invention, the real-time monitoring of the whole infusion state as well as abnormal condition alarming and management is realized, and the combination of infusion and ward emergency call and ward management systems. The monitoring system has high feasibility and is built on the basis of mature technology of sensors, electromagnetic valves, wireless communication, Ethernet communication, singlechips and the like.
Owner:SHENZHEN POLYTECHNIC

Failure automatic diagnosis and separation apparatus and method for power distribution network overhead line

InactiveCN101483337ARealize automatic restoration of power supplyFind quicklyFault locationArrangements responsive to excess currentMature technologyPower grid
The present invention discloses a apparatus and method for automatic isolation of fault section of short circuit fault of power distribution network overhead network and single-phase earth fault, and power supply automatic recovery of non-fault section, which is suitable for power distribution network electric network overhead network of 3-10kV. The principle of automatic isolation and power supply automatic recovery is as following: mount a plurality of voltage type recloser on the overhead network to separate the network into a plurality of sections; when fault occurs, a relay protection device or a line selection device transmits signal to automatically break off or close a faulty line outlet breaker according to preset delay time and action sequence, and then coordinate with the network recloser; determine fault section through one time reclosing; isolate fault section through secondary reclosing and then recover power supply in non-fault section. At the same time, a detection terminal installation mounted on a substation can automatically judge section where the fault in, and transmit the fault message to a scheduling background while transmitting to designated customers in short message way. The present invention is provided with mature technology and high reliability.
Owner:BEIJING SHENGHUAHONGYE TECH

Broadband wave-adsorbing and scattering adjustable metasurface

InactiveCN109904623ADynamic adjustment of vertical reflectivityVertical reflectivity can be dynamically adjusted in real timeAntennasMature technologyBroadband
The invention discloses a broadband wave-adsorbing and scattering adjustable metasurface. The metasurface is formed by the periodic arrangement of the same units, wherein each unit consists of an upper-layer metal structure, an active device, a middle-layer medium and a lower-layer metal backboard; a PIN diode is welded to the corresponding position of the upper-layer metal structure; the upper-layer metal structure is positioned above the middle-layer medium; and the middle-layer medium is positioned above the lower-layer metal backboard. The bias voltage of the metasurface PIN diode is changed to realize the switching of a wave-adsorbing mode and a scattering mode, wherein the wave-adsorbing mode is characterized in that the vertical reflectivity of the metasurface in a 8-10GHz frequencyband is dynamically adjustable; and the scattering mode is characterized in that the reflection phase difference of two working states of "on/off" of the unit PIN diode 8-10GHz frequency band is 180+/-20 degrees, a reflection amplitude difference is smaller than 1dB, and different electromagnetic codes are input into the metasurface through a FPGA (Field Programmable Gate Array) control system torealize the dynamic regulation and control of a scattering directional diagram. The designed metasurface has the advantages of simple structure, mature technology and low energy consumption and has agood application prospect in the fields of military and civil use.
Owner:SOUTHEAST UNIV

Interactive traffic navigation method based on wireless communication network and system

InactiveCN102402864AComprehensive Traffic ConditionsHave a comprehensive grasp of traffic conditionsInstruments for road network navigationRoad vehicles traffic controlTime extensionDriver/operator
The invention relates to traffic navigation technology, and discloses an interactive traffic navigation method based on a wireless communication network and a system, which aims to overcome shortcomings that the prior art is lack of input of traffic road condition information in a region and bidirectional information interaction during traffic navigation, accordingly, navigation paths are not ideal, traffic jam sections cannot be effectively avoided, travel time of vehicles is prolonged, and the requirement of travel by driving cannot be met. By the aid of the interactive traffic navigation method and the system, traffic management efficiency and reasonableness of navigation paths are improved. The interactive traffic navigation method and the system are based on current mature technology or technology which is already applied, and realize visual display of road traffic conditions for drivers of vehicles, forward jam sections can be avoided as much as possible by means of dynamic comparison and optimization of various driving paths from the current location to a destination of a vehicle, a part of a vehicle flow is properly dynamically split according to time sequence of arrival time to a certain place of vehicles in the same direction, optimal driving paths of the vehicles are scientifically planned, accordingly, traffic participation initiative of the drivers of the vehicles is effectively improved, and the purpose of dynamic and intelligent traffic navigation is realized.
Owner:叶朝晖

Method and device for measuring temperature and heat flow distribution on internal face of combustion chamber

The invention relates to a method and a device for measuring temperature and heat flow distribution on the internal face of a combustion chamber, and belongs to the field of temperature and heat flow measurement. The measurement device comprises the combustion chamber, a temperature sensor, a temperature sensor fixing device, a signal transmission line and a computer; the lateral surface of the combustion chamber is provided with a series of equidistant temperature measuring blind holes; the temperature sensor measures the temperatures of the bottoms of the blind holes so as to obtain a temperature output curve of each measure point; and then a certain value computational method is adopted to calculate the temperature and the heat flow distribution on the internal face of the combustion chamber. Due to adopting a proposal of measuring the temperatures of the blind holes, the method and the device solve the problems of high processing and mounting difficulties, inconvenient detachment and the like in the prior art; and the armored thermocouple temperature sensor with mature technology is adopted, so that the cost is low and the use is convenient. The method and the device can be used for measuring the temperature and the heat flow distribution on the internal face of a combustion device with an axial symmetry structure.
Owner:BEIHANG UNIV

Wireless micro-power network positioning system and locating method thereof

The present invention relates to the positioning technology, in particular to a radio micropower network positioning technique and a positioning method. The prior positioning systems have the defects of complex structure, large investment and high operation cost, moreover, under complex environmental conditions, such as cities, the prior positioning systems cannot satisfy a lot of actual application requirements, and in order to resolve the defects, the present invention discloses the radio micropower network positioning technique and the positioning method. The present invention utilizes the positions of network nodes as references to determine the position of a mobile target according to the universal relation among signal sources, receivers, emissive power and signal intensity and the specific relation depending on the environmental characteristics. The present invention has the advantages of simple structure, low cost and mature technology, and complex measuring and calculation and electronic maps are not needed in order to satisfy the actual positioning requirement. The system is not only a positioning network but also a communication network which can transmit position information and control information, the structure is simplified, use is convenient, and the operation cost is greatly reduced.
Owner:西安西谷微功率数据技术有限责任公司

Human-like collagen gene, homodirection tandem gene with different repeat numbers, recombinant plasmid having tandem gene and preparation method

The present invention discloses a human-like collagen gene, a same direction serial gene thereof with different repeat numbers, a recombined plasmid containing the serial gene and a preparation method. The base sequence of the human-like collagen gene Gel of the present invention is shown as SEQ ID NO: 1 in a sequence list, and the serial gene with different repeat numbers and the recombined plasmid containing the serial gene with different repeat numbers are obtained by the external enzyme digestion and the joint of the gene. The present invention is a complete novel sequence, and the length is greatly less than natural human collagen gene, which realizes the operation simplification at the molecular level and is easier to realize the gene engineering bacteria fermentation production of the collagen. The human-like collagen gene Gel also contains the characteristic of the natural human collagen gene, and corresponding human-like collagen expressed by the human-like collagen gene Gel can be provided with the good characteristic of the natural human collagen gene. The preparation method is just the simple external enzyme digestion connection reaction and the prokaryotic transformation and sieving with mature technology, which realizes the series connection of the target gene with any repeat number.
Owner:JIANGSU JLAND BIOTECH CO LTD

Ground and underground three-dimensional extraction system of coal seam gas

The invention relates to an extraction system of a coal seam gas, comprising a coal mine underground clustered directional drilling group, a vertical well, an underground main extraction pipeline, an underground subhorizontal directional drilling orifice connecting pipeline, an underground water discharge box, a well head and a well head coal seam gas extraction pipeline, wherein the vertical well is arranged in an area near a directional drilling final hole and within a range of a ground clustered directional drilling track projection area, penetrates through a rock stratum, a rock stratum, a coal seam roof and a target coal seam and extends into a coal seam floor; the well head of the vertical well is provided with a ground extraction pipeline of the coal seam gas; the underground water discharge box is arranged in a coal mine underground roadway and connected with the coal mine underground clustered directional drilling group through the underground subhorizontal directional drilling orifice connecting pipeline penetrating through the target coal seam; and the upper end of the underground water discharge box is connected with the underground main extraction pipeline of the coal seam gas through a pipeline to form the three-dimensional extraction system. The invention has mature technology, little construction risk and difficulty and lower cost.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP

Waste heat recovery IGCC (integrated gasification combined cycle) combined heat and power generation central heating system and method

ActiveCN104533551AImprove economyGuaranteed annual power generation hoursLighting and heating apparatusSteam useCooling towerMature technology
The invention discloses a waste heat recovery IGCC (integrated gasification combined cycle) combined heat and power generation central heating system and method. The system comprises an air separation unit, a gasification furnace, a gas cooler, a purification plant, a gas turbine, a waste heat boiler, an absorption heat pump and a heat exchanger, which are connected successively. An exhaust smoke outlet of the waste heat boiler is emptied or is connected with a smoke inlet of a smoke condensation heat exchanger; a steam outlet of the waste heat boiler is connected with an inlet of a steam turbine; an exhaust steam outlet of the steam turbine is connected with a steam inlet of a condenser; a circulating water outlet of the condenser is connected with a cooling tower; a low-pressure extracted steam outlet of the steam turbine is divided into three paths, two paths or one path of temperature drop, and heat supply network return water is conveyed to a heat supply network for use after being heated. The invention also provides a central heating method. Clean and efficient IGCC is combined with extracted steam heat supply of the steam turbine, the extracted steam of the steam turbine is used for driving the absorption heat pump, the exhaust steam waste heat of the steam turbine and the smoke waste heat are recycled, and the extracted steam heat of the steam turbine and the recycled waste heat are utilized for central heating. The recovery waste heat IGCC combined heat and power generation central heating system and method have the characteristics of cleanliness, high efficiency, mature technology, high recycled waste heat amount, and capability of recycling smoke condensate water.
Owner:HUANENG CLEAN ENERGY RES INST +1

Product family configurator based on single-layer variant material library and implementation method thereof

The invention relates to a product family configurator based on a single-layer variant material library and an implementation method thereof. The product family configurator is provided with a computer system, wherein a material management system is installed in the computer system and is characterized in that a material library and a product library are arranged in the material management system; a basic material attribute table and a material relation table are installed in the material library; and a BOM tree of products, a first layer of relation table of products, a BOM tree of product families and a first layer of relation table of product families are installed in the product library. The implementation method of the product family configurator comprises a construction method and an application method. The configurator can visually show logical relation among parts in products, is convenient for informatization management of products, reduces the workload of consistency maintenance of data information of parts, ensures the validity of data, fully utilizes available resources, reasonably utilizes mature technology and design data, effectively controls the design cost, shortens the design time, and reduces the design difficulty.
Owner:重庆迈特科技有限责任公司

High-power pulse tube refrigerator based on Stirling refrigerator

The invention discloses a high-power pulse tube refrigerator based on a Stirling refrigerator, which comprises a crank connecting link, a compression piston, an after-stage water cooler, a regenerator, a cold-end heat exchanger and a pulse tube system. A moving part, namely an expansion piston at a cold end of the prior (Phillips) Stirling refrigerator is substituted by the pulse tube system, andthe pulse tube system comprises a pulse tube, a hot-end heat exchanger, an inertance tube and an air reservoir. No moving part exists at a cold end of the high-power pulse tube refrigerator, thereby solving the problems such as machine wear and serious vibration caused by the expansion piston, remarkably improving the reliability of the refrigerator and widening the application range of the refrigerator. The high-power pulse tube refrigerator adopts the annular regenerator with mature technology, reduces the annular flow of gas in the regenerator, effectively solves the problems of nonuniformtemperature and flowing universally existing in the high-power pulse tube refrigerator, and increases the symmetry of radial temperature, thereby reducing the loss of the regenerator in the high-powerpulse tube refrigerator, and improving the efficiency of the refrigerator.
Owner:ZHEJIANG UNIV

Ga2O3-baesd metal oxide semiconductor field effect transistor with good heat dissipation performance and preparation method thereof

ActiveCN106920849ASolving Heterogeneous Epitaxy ProblemsOvercome the disadvantages of poor heat dissipation and high priceSemiconductor/solid-state device detailsSolid-state devicesInsulation layerMature technology
The invention discloses a Ga2O3-baesd metal oxide semiconductor field effect transistor with good heat dissipation performance and a preparation method thereof, and belongs to the technical field of power semiconductor devices and preparation thereof. The device is formed by parts of a substrate, a Ga2O3 buffering layer, a Ga2O3 channel layer, a Ga2O3 source, a drain region, an Al2O3 insulation layer and a metal electrode, and is characterized in that the substrate is Si monocrystalline; a nitride and oxide mixed multilayer structure is prepared between the substrate and the Ga2O3 buffering layer; and the mixed multilayer structure is formed by a GaN-serial multilayer structure film, a Ga2O3 oxidation thin layer, an involuntary doped Ga2O3 lower buffering layer and a magnesium doped Ga2O3 semi-insulation layer. According to the invention, a heteroepitaxy problem of Ga2O3 materials is solved; disadvantages of poor heat dissipation performance and high selling price of the Ga2O3 monocrystalline substrate used by the current Ga2O3-baesd metal oxide semiconductor field effect transistor are overcome; and advantages of mature technology, low selling price, easy integration and good heat dissipation of the Si material can be used, so the provided Ga2O3-baesd metal oxide semiconductor field effect transistor is quite highly practical.
Owner:上海镓旦电子信息有限公司
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