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121results about How to "Adapt to development needs" patented technology

Built-in type 4 axis sport controller

The invention discloses an embedded four-axis motion controller which comprises a main controller and a motion control module. An output of the main controller is connected with the motion control module through an output interface, and the motion control module is respectively connected with an X-axis motion component, a Y-axis motion component, a Z-axis motion component, and a U-axis motion component. The controller of the invention adopts an S3C44BOX chip based on an ARM7TDMI core which is promoted by the Samsung company as the main controller, adopts a motion control chip MCX314As which is specially used by the NOVA company in Japan as an interpolate controller, adopts a PC104 bus interface with strong insertion ability, combines the embedded CPU with a special DSP motion control chip, embeds the motion control function in the framework of the ARM main control plate with a PC 104 function module method, cuts off the equipment that is not in need, has a plurality of functions and saves the cost. The invention is an independent motion controller which can be separated from a host computer and is characterized by strong computing ability and low cost, thereby extremely reducing the size of the system, lowering the power consumption, and improving the reliability and the openness of the system.
Owner:GUANGDONG UNIV OF TECH

Image identification-based intelligent transformer substation state monitoring system

The invention discloses an image identification-based intelligent transformation substation state monitoring system, which is characterized in that: a camera is used for monitoring the states of a circuit breaker indicator, a pressure plate, a knob switch and the like on a switch cabinet in an intelligent transformer substation, the image of an area where a monitoring device is arranged is acquired, the states of each indicating lamp, the pressure plate and the switch are obtained by using an image identifying technology, and relevant identified states are transmitted to a background monitoring system through a 61850 protocol, so that automatic management of the running situation of the intelligent transformer substation is realized.
Owner:ANHUI NANRUI JIYUAN POWER GRID TECH CO LTD +1

Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board

The present invention relates to a preparation method of high glass-transition temperature halogen-free flame-retardant glass cloth laminated plate. Said method includes the following steps: (1), preparing halogen-free flame-retardant resin adhesive by using benzoxazine resin containing aralkyl structure, flame-retardant epoxy resin or general epoxy resin, solidifying agent, solidification accelerator, solvent and inorganic or organic flame-resisting agent according to a certain mixing ratio; (2), preparing glass cloth preimpregnated material; and (3), pressing so as to obtain the invented product.
Owner:SICHUAN DONGFANG INSULATING MATERIAL

Automatic quick dispatch sorting system

InactiveCN104492717AControl sorting error rateAdapt to development needsSortingInductorComputer engineering
The invention discloses an automatic quick dispatch sorting system which comprises a processor, a conveyor belt, a bar-code scanner, a sorting device, multiple channels and inductors, wherein the conveyor belt is connected with the processor, and the quick dispatch conveying process is controlled by the processor; the bar-code scanner is arranged on the conveyor belt, is connected with the processor and is used for scanning bar codes of the quick dispatches and feeding acquired information back to the processor; the sorting device is connected with the conveyor belt and is connected with the processor, and the quick dispatch sorting process is controlled by the processor; the multiple channels are respectively connected with the sorting device; each channel is provided with one inductor which is connected with the processor; and the inductors are used for checking whether the quick dispatches are sorted to the corresponding channels and feeding information back to the processor. According to the system disclosed by the invention, the sorting error rate of the quick dispatches can be effectively controlled, and the condition that a sorting error occurs can be timely treated.
Owner:GUANGXI UNIV

Billing method and system based on SDN EPC network

The present invention discloses a billing implementation method based on a software defined networking evolved packet core (SDN EPC) network, said method comprising: a controller receiving billing rules sent by a billing rule generator, and binding the corresponding relationship between its own flow table and the billing rules; the controller engaging in table-entry setting for the flow table having billing rules bound thereto, and sends the post-setting flow table to a universal gateway (UGW); the controller receiving statistical results for the operations-occupied flow rate and / or occupation duration, which are based on the flow table and which are reported by the UGW, and, in accordance with the statistical results and the flow table billing rules, engaging in the billing of operations. The present invention also discloses an SDN EPC network-based billing implementation system.
Owner:ZTE CORP

Smart service system of Internet of things based on software definition

The invention designs a smart service system (3S) of the Internet of things based on software definition. According to the system, a user is used as a center, business is used for driving, and a software definition mode is adopted, so as to construct the smart service system oriented to an application environment of the Internet of things. The smart service system is characterized in that for ubiquitous wireless network architecture and three software definition control platforms, i.e. a software definition service control platform, a software definition network control platform and a software definition terminal control platform, individual businesses, networks and terminals are customized for users through software according to business requirements of the users. A network function virtualization technique is introduced through the software definition control platforms, so that multidimensional resources are communicated, calculated and stored for integrated optimization, resource barriers of heterogeneous networks and different industries and departments are broken through, resource sharing is realized, and a network using the user as the center is established, so as to adapt to the development requirement of the Internet of things at last.
Owner:NANJING UNIV OF POSTS & TELECOMM

Design method of DCS controlled TTP/C bus controller catering to aeroengine

The invention discloses a design method of DCS controlled TTP / C bus controller catering to aeroengine. Considering the performance demands of the DCS system of aeroengines, the design method of TTP / C bus controller comprises the steps of general design of the TTP / C bus controller, data link layer design of the TTP / C bus controller, protocol service layer design of the TTP / C bus controller, communication network interface design of the TTP / C bus controller, and the state machine of the TTP / C bus controller. The controller designed by the method on the basis of field bus programmable gate array has the advantage of being light in weight, being low in cost, being simple in maintenance. At the same time the transmission bandwidth is high, the error tolerance is strong, and the bus use rate is high, thus satisfying the demands of the DCS system of aeroengine.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Embedded control system for carton proofing machine and control method thereof

The invention provides an embedded control system for a carton proofing machine and a control method thereof. The control system comprises an embedded microprocessor module and a motion control module which are connected through a data bus and a control bus, wherein a dual-core CPU chip is used as a core of the microprocessor module; and the motion control module is used for carrying out pulse output control by using a fine-interpolation motion control module. The control method provided by the invention comprises the following steps of: (1) inputting an image file or a code-processing file to be processed, recognizing a graphic profile, planing a locus, preprocessing the speed or converting processing codes; (2) carrying out crude interpolation operation; and (3) carrying out fine interpolation operation, outputting control to a stepping or servo system to control the action of an execution unit so as to finish the cutting of a carton pattern to be designed. The invention has the advantages of small size, low hardware cost, high real-time property and stability of system operation, good reliability and expansibility and low system power consumption and is suitable for the development needs of an electromechanical product for the embedded control system.
Owner:GUANGDONG UNIV OF TECH

Security-marker-based access control method and related system

The embodiment of the invention discloses a security-marker-based access control method and a related system, which are used for performing unified management on the access control of a middleware layer over a subject. The method comprises that: a middleware kit acquires a web access request message; the middleware kit acquires a security marker of the subject and the name of an object from the web access request message, wherein the subject is an accessing party, and the object is an accessed party; the middleware kit queries the name of the object, and acquires a security marker of the object; and the middleware kit performs the access control on web accessing according to the security markers of the subject and the object. By the technical scheme, the unified management over the access control of the middleware layer over the subject can be realized; moreover, the method is implemented on the basis of the security markers, and is adapted to the development requirements of construction of a security marker protection level information system at the same time.
Owner:SHANDONG CVIC SOFTWARE ENG +1

Manufacturing method of back drill holes on PCB (Printed Circuit Board)

The invention discloses a manufacturing method of back drill holes on a PCB (Printed Circuit Board). The manufacturing method comprises the following steps of: in a manufacturing process of the PCB, dividing all layers of the PCB into layers for forming a metalized hole layer and layers for forming a non-metalized hole layer according to layered distribution of metalized holes and non-metalized holes of the back drill holes on the PCB to be manufactured; respectively manufacturing and processing all the layers forming the metalized hole layer and all the layers forming the non-metalized hole layer to form a metalized hole layer with the metalized holes and a non-metalized layer with the non-metalized holes; and laminating the metalized hole layer with the metalized holes and the non-metalized layer with the non-metalized holes through a prepreg with low fluidity to form the PCB with the back drill holes. Therefore, according to the manufacturing method disclosed by the invention, useless hole copper can be completely eliminated, so that the back drill holes without useless hole copper residual can be manufactured on the PCB, and the signal transmission integrity of the PCB is ensured so as to adapt to development requirements of electronic products.
Owner:CHINA CIRCUIT TECH SHANTOU CORP +1

Device and method for predicting ground target motion trail of unmanned aerial vehicle

The invention discloses a device and a method for predicting a ground target motion trail of an unmanned aerial vehicle. A moving target data acquisition module acquires data of a ground moving target through an onboard sensor system in an onboard device of the unmanned aerial vehicle. A moving target data processing module converts a ground moving target motion trail three-dimensional polar coordinate into a three-dimensional rectangular coordinate, performs standardization processing on target trail data and the performs analytical prediction. A moving target trail generating module invokes a ground moving target trail predicting method in a predicting method library, performs analytical prediction on trail standardization data of the moving target and generates a prediction result. A moving target trail recommendation module calculates the recommendation level of the current moving target trail prediction result according to the standardization data and the prediction result. The device and the method for predicting the ground target motion trail of the unmanned aerial vehicle have the advantages of being capable of effectively predicting the ground target motion trail and providing reliable information for an unmanned aerial vehicle mission planning system and the like.
Owner:HEFEI UNIV OF TECH

Mobile terminal antenna and mobile terminal

The present invention provides a mobile terminal antenna and a mobile terminal. The mobile terminal antenna comprises a main floor, a spacing block and a metal frame arranged to surround the main floor. The main floor is arranged in the metal frame. One part of the edge of the main floor is connected with the inner edge of the metal frame. The other part of the edge of the main floor is separated from the inner edge of the metal frame. The metal frame comprises a first section and a second section. The inner edge of the metal frame, corresponding to the first section, is connected with the edge of the main floor. The inner edge of the metal frame, corresponding to the second section, is separated from the edge of the main floor. The second section is provided with at least one notch. The metal frame, at the two ends of each notch, is respectively connected with a grounding end and a feed source. In this way, the metal frame, at the two ends of the above notch, respectively forms at least one antenna arm. The spacing block is arranged in the notch and is connected with the grounding end. The mobile terminal of the present invention comprises a mobile terminal provided in any embodiment of the invention. According to the technical scheme of the invention, the problem in the prior art that antennas at the two ends of a handset antenna are low in antenna utilization rate can be solved.
Owner:VIVO MOBILE COMM CO LTD +1

Network communication cell used for multi-core microprocessor on-chip interconnected network

The invention discloses a network communication cell used for a multi-core microprocessor on-chip interconnected network. The network communication cell used for the multi-core microprocessor on-chip interconnected network comprises at least a physic channel, wherein the physic channel comprises a communication interface unit and a two-stage pipeline structure; the communication interface unit comprises an interface register and not more than eight bidirectional communication interfaces; the two-stage pipeline structure comprises an arbitration station used for arbitrating an input message micro-packet data requirement and buffering input message micro-packet data, and a data selection station used for selectively outputting the arbitrated and allowed message micro-packet data; the arbitration station and the data selection station are respectively connected with the bidirectional communication interfaces through the interfere register; and an inter-station register used for caching the arbitrated and selected message micro-packet data is arranged between the arbitration station and the data selection station. The network communication cell used for the multi-core microprocessor on-chip interconnected network, disclosed by the invention, has the advantages of good reusability, simple configuration and extension, and capabilities of reducing design difficulty of the microprocessor interconnected network, shortening designing time and achieving a wide application range.
Owner:NAT UNIV OF DEFENSE TECH

Driving printed circuit board and liquid crystal display

The invention relates to a driving printed circuit board and a liquid crystal display. The driving printed circuit board is a flexible printed circuit board on which a liquid crystal display panel driving circuit and a backlight module driving circuit are arranged; the backlight module driving circuit is used for attaching a light source; and when the driving printed circuit board is assembled, the part provided with the backlight module driving circuit is bent into a backlight module. The liquid crystal display comprises a main frame, and a liquid crystal display panel, the driving printed circuit board and the backlight module which are embedded into the main frame, wherein the driving printed circuit board is the flexible printed circuit board on which the liquid crystal display panel driving circuit and the backlight module driving circuit are arranged; the light source is attached to the backlight module driving circuit; and the part provided with the backlight module driving circuit is bent into the backlight module. The technical scheme of the invention integrates the backlight module driving circuit and the liquid crystal panel driving circuit on a printed circuit board so as to simplify the process and improve assembling efficiency.
Owner:BOE TECH GRP CO LTD +1

Web access method, terminal and service platform based on IPTV system

The invention relates to a web access method, a terminal and a service platform based on an IPTV system. The web access method based on the IPTV system comprises the following steps: a user terminal receives a web channel number formed by input Arabic numerals; the user terminal carries the web channel number in a web address inquiry request and sends the web address inquiry request to a channel number server so as to inquire the web address corresponding to the web channel number; and the user terminal receives the web address returned by the channel number server and sends a web access request to a network application server according to the web address. The user terminal comprises a number receiving module, an inquiry request module and a web access module. The channel number service platform comprises a request receiving module, a site inquiry module and a site returning module. The invention adopts the technical means of channeled of network application service to facilitate the user to input numbers to realize web access operation as well as the capacity expansion of the website address quantity of without changing the user terminal.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Magnesium-calcium tundish dry vibrating material and preparation method thereof

The invention relates to a magnesium-calcium tundish dry vibrating material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps of: mixing 68-80 percent by weight of magnesium-calcium sand, 9-16 percent by weight of magnesium sand fine powder and 4-17 percent by weight of hydrated sodium metasilicate; uniformly stirring the mixture; performing vibratory compaction on a tire membrane; baking at the temperature of 100-300 DEG C for 2-12 hours; and demolding, wherein the content of CaO of the magnesium-calcium sand is less than or equal to 60 percent by weight, the particle composition is 45-70 percent by weight when the particle size is 3-1 millimeter and 30-55 percent by weight when the particle size is less than or equal to 1 millimeter, the particle size of magnesium sand fine powder is less than 0.088 millimeter, the magnesium sand fine powder is more than one of sintered magnesium sand and electrically-molten magnesium sand, and the hydrated sodium metasilicate is more than one of sodium metasilicate pentahydrate and metasilicate nonahydrate. The vibrating material has a simple process, is environmentally-friendly and can be baked quickly. A prepared working lining has the characteristics of high intensity, high erosion resistance and long service life, and particularly has good heat preserving and molten steel purifying functions. The development requirement for clean steel smelting is met.
Owner:WUHAN UNIV OF SCI & TECH

Internet-of-vehicles big data cross-domain analysis fusion method

The invention relates to an Internet-of-vehicles big data cross-domain analysis fusion method, which is mainly characterized in that an Internet-of-vehicles cloud data mining architecture is established, and the Internet-of-vehicles cloud data mining architecture comprises a distributed data access engine, a parallel mining engine, proxy nodes and a Web server cluster; performing data mining by adopting an Internet-of-vehicles data mining algorithm; and realizing a parallel function of the shared memory by adopting a shared memory parallel computing technology. According to the method, a clouddata mining architecture which is composed of a distributed data access engine, a parallel mining engine, a Web server cluster and agent nodes and can support parallel computing is adopted, so that the supporting capability for mass data is improved; through a data preprocessing technology, an uncertain data preprocessing technology and an Internet-of-vehicles industry data processing and fusiontechnology, support of Internet-of-vehicles specific data such as streaming data is optimized; based on novel data mining algorithms such as mining, analysis, clustering technology, behavior recognition and anomaly detection of the Internet-of-vehicles streaming data, the intelligent level of the system is improved.
Owner:天津神舟通用数据技术有限公司

Nickel hydrazine azide, its preparation method and uses as explosive ignitor

InactiveCN1970514ASafer, more energy-saving and more efficient synthesis methodsEnergy-saving and more efficient synthesis meansMetal azide explosive compositionsNickel saltHydrazine compound
The invention discloses an azide hydrazine nickel and making method of detonating medicinal compound, which comprises the following steps: adding soluble nickel salt and azide liquid and hydrazine hydrate solution in the water to do combination reaction; or adding azide solution and hydrazine hydrate solution in the nickel solution to do combination reaction; setting the feeding time for 30-40 min under 50-70 deg.c; cooling; sucking; washing; dehydrating; drying to obtain the product; adjusting pH value through adding diluted acid. The invention provides a safer, more energy-saving and effective pharmaceutical synthetic method, which improves flame sensitivity with low mechanic sensitivity and electrostatic accumulation.
Owner:NANJING UNIV OF SCI & TECH

Machining center tool decision making method for low-carbon manufacturing

The present invention relates to a machining center tool decision making method for low-carbon manufacturing, which is applied to a single machining center manufacturing system. The method comprises the specific steps of: 1. determining the remaining life of each tool; 2. determining the available tool type and the corresponding cutting parameter for each work step of each workpiece; 3. calculating the processing time, processing power and tool wear rate of the available tool type for each work step in sequence, and obtaining a work step-tool type matching table; 4. using the multi-objective genetic algorithm considering tool life constraint to solve the problem, calculating the production cost and the carbon emission under different tool usage schemes and workpiece processing orders to obtain the optimal chromosome; 5. based on the optimal chromosome information, obtaining the processing tool of each work step and the loading tool set of each processing section, and putting them into production. The method according to the invention can make a quick decision on the choice and the loading order of the tools on the production site, generate the processing scheme where the cost and the carbon emission are optimized and coordinated, and guide the tool preparation and actual production.
Owner:XI AN JIAOTONG UNIV

Software definition networking method of state sensing

The invention relates to a software definition networking method of state sensing. The software definition networking method comprises steps of: step 1: inputting a data level network parameter, an adjacent matrix AN*N, an end-to-end flow request matrix gammaN*N, link capacity Ce, a maximum link utilization rate alpha and a low request transmission rate lower limit beta; step 2: calculating a data level network path set, and solving all path sets P between two points in a directed connected graph according to a depth-first traversal method of the graph; step 3: calculating a link state matrix Ukpe; step 4: establishing a multi-source multi-sink maximum flow model based on a path hop count; and step 5: solving a model constructed in the step 4 by use of the CPLEX, and outputting the end-to-end maximum flow based on energy efficiency priority. According to the invention, the maximum flow solution based on a path is adopted; in order to improving energy efficiency of a data level network, the path hop count is used as a restriction condition, and a flow transmission path with lowest bit energy consumption is established for an end-to-end request every time, so an objective of division of high energy efficiency data level network is met.
Owner:ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +3

Low-cost 40CrV tool steel and production method thereof

The invention discloses low-cost 40CrV tool steel and a production method thereof. The low-cost 40CrV tool steel is prepared from the following components in percentage by weight: 0.38%-0.43% of C, 0.15%-0.35% of Si, 0.60%-0.90% of Mn, less than or equal to 0.030% of P, less than or equal to 0.030% of S, less than or equal to 0.20% of Cu, 0.50%-0.70% of Cr, 0.05%-0.08% of V, 0.010%-0.030% of Al, less than or equal to 0.04% of Ti and the balance of Fe. According to the composition ratio and the production method of the low-cost 40CrV tool steel, through the perfect combination of the optimizeddesign of the chemical components, the stable control of the steelmaking and steel rolling production processes and the controlled rolling and controlled cooling technology (rolling parameters), the smelting process, the starting and finishing rolling temperatures and the cooling mode of the formula are strictly controlled to realize the production of the low-cost 40CrV tool steel.
Owner:JIANGSU LIHUAI IRON AND STEEL CO LTD +1

Bo steering frame used for electric shunting locomotive

The invention discloses a Bo steering frame used for an electric shunting locomotive. The Bo steering frame comprises a framework, two wheel pairs and two sets of basic braking devices used for braking the wheel pairs. The framework comprises two parallel framework side beams and three framework transverse beams used for enabling the framework side beams to be connected into a whole. The three framework transverse beams comprise two end portion transverse beams located on the end portions of the two ends of the framework side beams and one middle transverse beam located in the middle of the transverse side beams, the framework side beams and the framework transverse beams define a first empty position and a second empty position in an enclosed mode, the two wheel pairs are installed in the first empty position and the second empty position respectively through axle boxes, and the two sets of the basic braking devices are installed on the two end portion transverse beams respectively. Compared with a current Bo steering frame, the axial distance of the Bo steering frame is smaller, and accordingly a curve with a smaller radius can pass the steering frame and the developing requirements of an existing shunting locomotive are met.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO

Preparation method of calcium magnesium ammonium nitrate

The invention provides a preparation method of calcium magnesium ammonium nitrate. The preparation method comprises the following steps: sequentially calcining and crushing medium-low-grade phosphorite, adding the crushed medium-low-grade phosphorite into a solution containing ammonium nitrate and nitric acid, carrying out leaching and filter pressing to obtain magnesium-removed phosphate concentrate and a leach liquor; carrying out concentrating and spray drying on the leach liquor in sequence to obtain powdery calcium magnesium ammonium nitrate; and adding an ammonium nitrate melt into the powdery calcium magnesium ammonium nitrate, carrying out first mixing, and then carrying out high-tower or slurry-spraying granulation on the ammonium nitrate melt and powdery calcium magnesium ammonium nitrate subjected to the fist mixing to obtain granular calcium magnesium ammonium nitrate. According to the preparation method, calcium and magnesium elements can be effectively separated from themedium-low-grade phosphorite by utilizing ammonium nitrate and nitric acid, and through the addition of the ammonium nitrate melt and the granulation, the granular calcium magnesium ammonium nitrate is finally obtained. The preparation method provided by the invention has simple process, high utilization rate of the leach liquor and no generation of waste residues.
Owner:GUIZHOU BATIAN ECOTYPIC ENG CO LTD

Redox catalyst for metal-air fuel cells and preparation method of redox catalyst

The invention discloses a redox catalyst for metal-air fuel cells and a preparation method of the redox catalyst and belongs to the technical field of air fuel cells. A formula of the redox catalyst for the metal-air fuel cells comprises the following ingredients: 20g to 50g of Pt / c platinum / carbon, 30g to 50g of melamine, 40g to 60g of ferric chloride, 20g to 40g of potassium hydroxide, 15g to 30g of methanol, 20g to 30g of Nafion solution and 10g to 20g of alumina polishing powder. The preparation method of the redox catalyst for the metal-air fuel cells comprises the following specific steps: (S1) obtaining a platinum-carbon mixture; (S2) obtaining a catalyst coagulum; (S3) carrying out uniform mixing thoroughly; (S5) preparing redox catalyst powder. According to the redox catalyst and the preparation method thereof, the perfluorosulfonate polymer Nafion solution is adopted as a coating and a support of the catalyst, so that a membrane electrode can be formed, and the transfer resistance of substances and the resistance of the electrode are lowered; the prepared redox catalyst is low in price and can meet the development requirements of large-scale commercial fuel cells.
Owner:XINXIANG MEDICAL UNIV

Doubling hot pack device of belted layer and doubling hot pack production process

The invention discloses a doubling hot pack device of a belted layer, comprising a gluing and edge-binding conveyer belt, unwinding equipment for unwinding a belted layer cord fabric, a centering device, an extruder for providing model glue synchronously and a feeding device and a calendar thereof, a gluing device for gluing the model glue with the belted layer cord fabric, a edge-binding device for carrying out edge-binding on the model glue and the belted layer cord fabric, an air-cooling system for cooling the belted layer after the gluing and edge-binding process is finished, and a rolling apparatus for rolling up the cooled belted layer cord fabric. The invention also discloses a doubling hot pack production process using the device; the off-line doubling hot pack device of the invention is separated from the cutting production line so that the whole production efficiency can be improved. The hot gluing and edge-binding are adopted, and bending is carried out gradually by utilizing the good ductility and stickiness of the hot type glue, thereby reducing bubbles and improving the production quality. Meanwhile, different grooves are arranged on a roller according to the model glues designed by different customers so as to meet the requirements on the customers and improve the customer satisfaction.
Owner:TIANJIN SAIXIANG TECH

Li-Ti3C2-rGO composite thin film material and preparation method thereof

The invention provides a Li-Ti3C2-rGO composite thin film material and a preparation scheme thereof. The Li-Ti3C2-rGO composite thin film material is prepared by the following steps that step 1, a GOdispersion solution and a Ti3C2 dispersion solution are prepared, the concentration of the GO dispersion solution and the Ti3C2 dispersion solution is 1-4mg / mL, after the GO dispersion solution and the Ti3C2 dispersion solution are mixed, stirring is carried out, and then ultrasonic treatment is carried out; step 2, the solution obtained in the step 1 is subjected to vacuum filtration in batches;step 3, a Ti3C2-GO thin film filtered by the step 2 is subjected to air drying naturally, a contact heat table is torn off from the filter film, so that the Ti3C2-GO thin film becomes a multihole Ti3C2-rGO thin film; and step 4, the multihole Ti3C2-rGO thin film in the step 3 is in contact with a molten lithium metal. According to the thin film prepared by the preparation scheme, the electrode hasgood flexibility, and is very useful for wearable electrode design; and the uniform and rapid combination of the lithium metal with the composite material can be realized, the lithium content of thethin film material is high, and the superstrong protection for the lithium metal can be realized.
Owner:HARBIN ENG UNIV

Scripting language execution method and device

The embodiment of the invention provides a scripting language execution method, which comprises the following steps: (1) analyzing and explaining the code of a scripting language to generate an operation subset; (2) generating the operation subset into an operable code, and storing the code into a memory; and (3) executing the operable code. The invention also correspondingly provides a scripting language execution device. The scripting language execution method and device carries out a code curing operation on grammatical analysis and operation subset explanation exaction processes in an execution process of the scripting language through a precompiled way, so that the scripting language reduces the explanation exaction process in the execution process, meanwhile, dependence on a virtual machine in the execution process of the scripting language is lowered, and the execution efficiency of the scripting language is improved.
Owner:YGSOFT INC

Distributed power source grid connection capability evaluation method and device

ActiveCN108683209ACorrect Response to True ReceptivityImprove accuracySingle network parallel feeding arrangementsPower flowPower grid
The invention provides a distributed power source grid connection capability evaluation method and device. According to the method and device, the equipment parameters, topology structure and operation data of a power distribution network and the initial power of an energy storage device after the power grid connection of a distributed power source are obtained; a plurality of operating scenes aredetermined according to the operation data; the power flow of the power distribution network after the power grid connection of the distributed power source is calculated according to the equipment parameters and topology structure of the power distribution network and the initial power of the energy storage device, and power flow calculation results under the operation scenes are obtained; and the grid connection capability of the distributed power source is evaluated according to the power flow calculation results under the operation scenes. According to the method and device of the invention, the power of the energy storage device is considered, so that distributed power source grid connection capability evaluation with the participation of the energy storage device is realized; the accuracy of an evaluation result is improved; the true acceptance capability of the power distribution network for the distributed power source can be correctly reflected; and the development needs of the energy storage device in power distribution in the future can be satisfied.
Owner:CHINA ELECTRIC POWER RES INST +1

Intelligent pressure sensor system for intelligent engine distributed control

The invention discloses an intelligent pressure sensor system for distributed control of an intelligent engine. A pressure analog signal measured by a piezoresistive pressure sensor and a temperatureanalog signal measured based on thermal resistance are shaped and filtered through a signal processing unit; AD acquisition of pressure and temperature analog signals is realized through a ZYNQ-basedintelligent computing unit, and hardware resources are provided for dimensional transformation of the temperature and pressure signals, temperature-based pressure signal correction and fault diagnosisof a pressure sensor; tTP bus communication of the digital signals of the pressure sensors is realized through the communication unit, so that other nodes in the distributed control system can acquire the pressure digital signals from the TTP bus. The intelligent pressure sensor based on ZYNQ design is light in weight and convenient to maintain, hardware adopts a dual-redundancy scheme to meet reliability, communication adopts an FPGA to guarantee communication real-time performance, the transmission bandwidth is high, the fault-tolerant capability is high, the bus utilization rate is high, and the requirements of an aero-engine distributed control system are met.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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