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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention consists of first differential pair and second differential pair. Each group of differential wire is composed of two wires. The array of the first differential pair and second differential pair appears geometry polygon. At least there is the wire one differential pair locating at different dielectric constant routing layer of high speed digital circuit. The wire of same differential pair can also locate at routing layer with same dielectric constant in high speed digital circuit. The first and second differential pair all can be taken as interference source or interference object.

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.

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.

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.