52results about How to "Not very dependent" patented technology

The invention discloses a laminated metal plate as well as a production method and a production device thereof. The laminated metal plate comprises a metal plate and a polyester film laminated on the surface of the metal plate, wherein an adhesive is not arranged between the metal plate and the polyester film. The laminated metal plate production method comprises the following steps: heating the metal plate to realize that the temperature of the metal plate is higher than the melting point of the polyester film; applying mechanical pressure to the polyester film by virtue of a lamination device so as to cover the polyester film on the metal plate; enabling one side, close to the metal plate, of the polyester film to be molten and the other side, far from the metal plate, of the polyester film to be not molten; and rapidly cooling the metal plate laminated by the polyester film to obtain the laminated metal plate. The laminated metal plate can be used for overcoming a plurality of defects of the prior art, and realizing no adhesive, safety, environmental friendliness, strong adhesion and strong corrosion resistance, and can be directly used in food package; the production process is simple ad practical; and the production device meets the requirement of industrial production.

The invention provides a video motion shadow detecting method based on lighting compensation. The method includes: using a background differencing method to obtain the foreground area with motion shadows, using color features to extract candidate shadow areas, randomly sampling the areas to estimate the parameters of lighting compensation, and differencing the compensated background area with the foreground area to obtain the motion shadow detecting result. The method has the advantages that any scene assumption can be avoided, and manual intervention is not needed; compared with other multi-feature shadow detecting methods, the method can fuse multiple features reasonably, instantaneity and accuracy are achieved, and the method is well applicable to scene and environmental variations.

The invention relates to an optimizing time synchronizing device for multi-channel clock sources. The optimizing time synchronizing device comprises at least two units identical in structure. In every unit, a global positioning system ground receiver (8) is connected with a counter (7), the counter (7) is further connected with a comparator (6) in the unit, a high-stability crystal oscillator (1) is directly connected with the counter (7) in every unit or connected with the counter (7) in every unit through a phase-locking frequency multiplier (2), and the comparator (6) in every unit is respectively connected with one input end of a multiplexer (4). The counter (7), the comparator (6) and a register (5) in every unit are respectively connected with a single chip microcomputer (3), and the output end of the single chip microcomputer (3) is further connected with the multiplexer (4). The optimizing time synchronizing device has the advantages that the comprehensive cost is low, algorithm adaptability is high, optimization of the multi-channel clock sources is supported, various time difference compensation strategies are supported, high-precision punctuality can be achieved, and time signal output is stable and reliable, and the like.

The invention relates to a production method for producing sodium nitrate with nitratine and the process steps thereof are that ore is crushed with the particle diameter below 2cm and is first treated with a multi-stage countercurrent hot soak so as to ensure that the content of NaNO3 in leaching solution is more than or equal to 450g/l, and then with a four-effect evaporation to remove NaCl and NaSO4 to ensure that the content of NaNO3 is more than or equal to 950g/l, and finally with centrifugation and drying after a three-stage vacuum cold separation crystallization to obtain the finished sodium nitrate. By adopting the method which has low dependency on natural conditions, water saving and low energy consumption and is suitable for low-grade nitratine mining, the overall yield of the sodium nitrate can reach more than 75 percent.

The invention discloses an eruption-facies volcanic rock geological body three dimensional modeling method based on computer graphics. The eruption-facies volcanic rock geological body three dimensional modeling method based on computer graphics includes the steps: selecting a seismic achievement profile and a seismic attribute slice; carving the front views respectively corresponding to the top interface form and the bottom interface form of an eruption-facies volcanic body; determining the function relation between the elevation of the top and bottom interfaces of the volcanic body and horizontal distribution of the volcanic body space; carving a top view corresponding to the form of the eruption-facies volcanic body; performing two dimensional linear interpolate value; determining the corresponding relation between the space distribution range of the volcanic body and the horizontal coordinates; determining the function corresponding relation between the elevation of the top and bottom interfaces of the volcanic body and the horizontal coordinates; obtaining the filling relative speed or the density attribute parameter value between the top and bottom interfaces of the volcano geological body; and obtaining a three dimensional model of the stratum. The eruption-facies volcanic rock geological body three dimensional modeling method based on computer graphics can effectively reduce the higher dependency of modeling on the development data, can overcome the high requirement for computer performance at the same time, can improve the modeling efficiency and enhance the modificability of the model at the same time, enables the modeling result to accord with the requirement of research and the practical geological situation.

The invention relates to a traffic signal control technology and aims to provide a traffic signal control method in urban traffic management. The method comprises the steps of: judging crowding conditions through a loop detector, and triggering demand control if traffic intensity parameters and inflow and outflow rate parameters reach the preset threshold values; screening a reasonable path from each node to crowded section according to a road network topological structure, and obtaining a demand control phase; and calculating an inflow and outflow rate of the crowded section, and determining a compression ratio of the demand control phase. According to traffic signal control method, few data is required, only flow data and occupancy data are required, and the method is low in dependency of the road network topological structure and suitable for a road network with any topological structure. The traffic demand is controlled, so that the traffic flow entering the crowded section is equal to traffic flow pulling out, and the phenomenon that the traffic state of the road section is not worsened can be fundamentally ensured.

The invention discloses a photoetching method using a metal glass as a photoresist. The method specifically comprises the following steps: depositing a metal glass material photoresist layer on the surface of a substrate; exposing a sample obtained through depositing according to a target nanometer pattern; generating a nanometer crystallized graphic at an exposed part when the exposed part reaching the crystallization temperature is changed in phase; and etching the exposed sample with the nanometer crystallized graphic so as to form a desired nanometer pattern. According to the invention, as the metal glass material replaces an organic photoresist, the photoetching line width of the obtained sample can be far smaller than the diffraction limit of a laser focusing spot; and moreover, low cost and large etching selection ratio are obtained. The invention further discloses a system for realizing the method; and the system mainly comprises a computer, an arbitrary waveform generator, a semiconductor laser, a collimating beam expander, a beam isolator, a beam splitter, a focusing servo mechanism, a focusing lens, an X-Y-Theta three-dimensional displacement platform and a focusing servo control box. The system disclosed by the invention has the advantages of simple composition, high performance cost, simplicity in operation, comparatively low requirement on operation environment and high output rate.

The invention relates to traffic signal control method and aims at providing a method for controlling demands of traffics entering city regions by using signal lamps. The method comprises screening out first-level demand control road crosses and second-level control road crosses according to a road network topological structure; determining respective appropriate signal cycles according to traffic strength of each road cross at area boundaries; judging crowding situations of each road section through a detector, and sequentially triggering requests for first-level demand control and second-level control road if state indexes achieve a preset threshold value; and determining allowing inflow rate of each road cross according to control requirements, and further determining demand control phase split of each road cross. The method needs fewer data, only needs flow data and occupancy data, is not strong in road network topological structure dependency, is applicable to road networks of any topological structures, enables inflow volume from the area boundaries to the inside of the area to be equal to the traffics borne by the inside of the area, remits traffic jam of the area and improves traffic circulation efficiency.

The invention discloses an image calibration method and device, electronic equipment and a storage medium. The method comprises the step of obtaining a proportion value of a pixel length and an actuallength of an image of each calibration point in a calibration pattern, wherein the proportion value of the pixel length and the actual length of any pixel point in the image acquired by image acquisition equipment is set by taking the proportion value of the pixel length and the actual length of the pixel point corresponding to the image of the calibration point adjacent to the pixel point as a reference value. The image calibration method is highly automatic, simple to operate, less prone to errors, low time complexity and space complexity of the algorithm, low in dependence on external conditions such as illumination and the like and particularly suitable for sewing machinery in an actual working environment.

The invention discloses a method for fast genetic transformation of rice, comprising the following steps: culturing rice ripe seeds to induce callus; selecting primary callus to serve as a receptor infected by agrobacterium; screening obtained resistive callus directly on a selective media; enabling the resistive callus to be differentiated into a resistive plant; and carrying out domestication and transplantation to obtain the genetically modified rice. According to method provided by the invention, the transgenic cycle of rice is greatly shortened by around two months compared with that obtained by the original method; the steps of genetic transformation of rice are simplified, full exposure culture at 30 DEG C is adopted, culture conditions is not replaced, and the process is simplified, thus saving time and labour; and the dependence on rice varieties is not strong, and the method is not only applicable to transformation of japonica rice but also to the transformation of nonglutinous rice.

The invention discloses a method for designing a MMC-HVDC controller. The method comprises the steps of (1) establishing a mathematical model of a MMC in a synchronous rotating coordinate system withthe combination of the working principle of a MMC-HVDC, (2) designing a unified inner loop current controller based on sliding mode variable structure control with the combination of the mathematicalmodel of the MMC, (3) designing a DC voltage controller model, (4) designing a power controller model, and (5) designing a DC voltage droop controller model. Compared with the prior art, the method has the advantages of simple algorithm, high control precision, strong dynamic response ability to a direct current transmission system, good stability, easy parameter debugging, strong robustness and low dependence on the mathematical model of the system, and on the other hand, the method has important application significance to promote the development of related industries.

The invention discloses a design method of a light-weight direct-current power transmission system controller based on active disturbance rejection control. The method comprises the following steps that: a transient mathematics model is established under a synchronous rotating reference frame in conjunction with a working principle of a light-weight direct-current power transmission system; a direct-current voltage controller based on an active disturbance rejection control technology can control a voltage stabilizer on a direct-current side of a current transducer and reactive power balance on an alternating-current side, adopts double-ring control of an inner ring and an outer ring, stabilizes a voltage of a direct-current system, and keeps unit power factor running of an alternating-current system; and power controllers based on the active disturbance rejection control technology consist of outer ring power control and inner ring current control, and can realize unit power factor running of the alternating-current system and ensure running of a system load flow according to a scheduling set value. The design method is a novel control method provided in ways of learning from the advantages of proportion integration differentiation (PID) control, referring to variable-structure control and avoiding the phenomenon of chattering in the variable-structure control. The design method has the advantages of simple algorithm, high control accuracy, high stability, easiness in parameter debugging, low dependence on a system mathematics model, and the like.

The invention provides a digital television network front end advisement making system ensuring that character advisements are made more flexibly and rapidly and the display effect is more varied. The digital television network front end advisement making system comprises an advisement material guiding module, an advisement material editing module, an advisement material analyzing module, an advisement material updating module and an advisement material sending and managing module, wherein the advisement material guiding module is used for guiding character advisement materials which are text files including character contents; the advisement material analyzing module is used for analyzing width and height of a character string of the guided advisement materials; the advisement material editing module is used for setting display effect parameters of the analyzed advisement materials; and the advisement material sending and managing module is used for embedding the display effect parameters and the character string data, corresponding to the edited advisement materials, into a private data section of a data stream and sending the display effect parameters and the character string data to a digital television network terminal.

The invention provides a method for identifying or screening disease-resistant rice material through rice blast seedling blast induced by field natural inoculation, and belongs to the technical field of plant disease protection and rice breeding. The method provided by the invention comprises the following steps of (1) diseased straw collection and storage; (2) induction variety selection and use; (3) induction variety selection and seeding of a first batch induction variety; (4) seeding of materials to be identified and screened and a second batch induction variety; (5) diseased straw inoculation; (6) diseased seedling inoculation; (7) observation, recording and identification. Under the natural field conditions, the rice blast seedling blast is induced by inoculation of diseased straw and diseased seedlings. The method has the advantages that the rice seedling period growth is not influenced; the rice blast physiological strain basic number is great; the diversity is rich; the multi-time field large-scale application can be realized; the operation is simple and convenient; the cost is low; an identification result is accurate; the screening effect is obvious. The method can be popularized and applied to rice blast seedling blast resistance breeding identification and screening and rice blast study.

The invention provides a multi-state system reliability assessment method based on Markov and a universal generation function. A multi-state system is used as a research object, the method comprises:firstly, using the Markov process of a component for obtaining the probability of each state, using Lz transformation for obtaining a universal generation function model of the component, then usinguniversal generation operator for conducting operation to obtain a universal generation function of the system, and using a K-means clustering algorithm to process, so that the workload is greatly reduced, and the calculation efficiency is improved; and determining the transfer density of the Markov process of the system by using a genetic algorithm, so that the Markov process of the system is solved, and the reliability of the multi-state system is effectively evaluated in real time. Compared with a traditional Monte Carlo reliability analysis method, the calculation time is greatly shortened, the state explosion is avoided, the transfer density matrix is optimized on the basis of ensuring the calculation precision by adopting a genetic algorithm, the calculation efficiency is remarkablyimproved, and the calculation time is shortened.

The invention discloses a simple face recognition and classification system which comprises a face capture module, a data processing module, a neural network module and a recognition test module. Theface capture module uses an OpenCV or Dlib library to mark and extract a face in the face captured by a camera to obtain a face data set; the data processing module processes the face data set obtained by the face capture module, so that the face data set can be trained and learned by a neural network; the neural network module trains and tests the processed data obtained by the data processing module to obtain a weight model file of network training; and the recognition test module is used for demonstrating face recognition. According to the invention, a TensorFlow deep learning framework israpidly utilized to build a simple face recognition classification system, and more reference possibilities are provided for application of deep learning in face recognition; meanwhile, the system canalso provide more possibilities in the fields of security verification, entrance guard recognition, face payment and the like which apply face recognition.

The invention discloses a low-sensitive type polycarboxylic acid slump retaining agent and a preparation method thereof. A structural formula of effective components of the low-sensitive type polycarboxylic acid slump retaining agent is shown as below (please see the formula in the description). The low-sensitive type polycarboxylic acid slump retaining agent can effectively reduce sensitivity of age flowing of concrete, and the phenomena that due to the fact that the mixing amount of the polycarboxylic acid slump retaining agent is too high or too low, after standing is conducted on the concrete, bleeding (even segregation) occurs, or the flowability is too poor can be effectively avoided.

The invention discloses a battery SOH prediction method based on unsupervised transfer learning. The method comprises the steps: extracting the features of two batteries, carrying out the adjustment of two feature spaces through a domain matching algorithm, enabling the conditional distribution and edge distribution of the two feature spaces to be matched, and enabling the weights of samples related to the two spaces to be increased and the weight of the irrelevant samples to be reduced through the adjustment of the weights of the samples; in this way, data of one battery can be used for training in a domain matching mode; the SOH of the other battery is predicted through a common machine learning algorithm, and therefore the method has the advantages of being high in applicability, high in prediction precision, easy to implement and the like.

An electrostatic discharge protection circuit used for protecting an integrated circuit from being damaged by electrostatic discharge comprises at least one discharge circuit and a clamp circuit, wherein, the discharge circuit comprises a first MOS transistor and a switching element. A source electrode of the first MOS transistor is used for receiving an input electrostatic discharge signal; the switching element is provided with an input terminal, a first output terminal and a second output terminal, wherein, the input terminal is connected with a grid electrode of the first MOS transistor, the first output terminal is connected with a drain electrode of the first MOS transistor, and the second output terminal is grounded. The clamp circuit is connected with the discharge circuit to provide a first voltage to the discharge circuit when in normal work, so as to close the discharge circuit; when the electrostatic discharge occurs, the clamp circuit provides a second voltage to the discharge circuit so as to open the discharge circuit. The electrostatic discharge protection circuit effectively protects the integrated circuit from being damaged by the electrostatic discharge, and has simple structure and quick response. In addition, the invention further provides an electronic product using the electrostatic discharge protection circuit.

The invention provides a single-phase grounding fault protection method for a small-resistance grounding system. Multi-stage cooperation among protection to an outlet circuit breaker, a branch switch,a boundary switch and a distribution transformer is achieved through cooperation of a time stage difference and a setting value, and a fault line is cut off selectively. For a high-resistance grounding fault, fault line selection is carried out by utilizing fault current traveling wave signals detected at the head ends of outgoing lines of a transformer substation, the situation that a high unbalanced current is generated due to other reasons is eliminated, the grounding protection constant value is reduced, the sensitivity is greatly improved, and the grounding protection can still reliablyact under a high-resistance grounding fault. After a grounding fault occurs, the fault can be quickly and selectively removed. The method is still effective when the transition resistance is up to 1500 ohms. An obvious effect is achieved for reducing the range and time of outage of a power distribution network due to a fault.

The invention belongs to the technical field of aviation electrical design, and particularly relates to a temperature detection method for fitting RTD characteristics by using an NTC thermistor. The method comprises the steps of: determining the maximum resistance value of an NTC thermistor according to the temperature detection range of aviation airborne equipment; determining the resistance value of an additional resistor connected with the NTC thermistor in parallel according to the maximum resistance value which can be detected by the RTD temperature sensor; according to a sampling temperature formula of the RTD temperature sensor and the corresponding relation of the resistance of the RTD temperature sensor along with the temperature, determining the corresponding relation between the temperature obtained after the NTC thermistor and the additional resistor are connected in parallel and sampling data; acquiring sampling data; and calculating the temperature of the corresponding sampled equipment according to the sampling data. The temperature of equipment such as a transformer rectifier and a storage battery can be effectively monitored, safe operation of the equipment is guaranteed, and fault detection and prediction of an aviation power supply system are facilitated.

The invention discloses a method for selectively eliminating correlation degree of a power supply planning comprehensive evaluation index system. The method comprises the following steps: performing hierarchical processing on a comprehensive evaluation index; carrying out dimensionless processing on the indexes; calculating the fuzzy comprehensive correlation degree of the index system; screeningthe indexes with strong correlation for correlation elimination; and the correlation coefficient method is combined with Schmidt orthogonalization to eliminate the correlation. According to the method, correlation between indexes is considered at the same time, and original data are reserved as much as possible. Whether each index needs to be subjected to correlation elimination or not is judged according to the fuzzy comprehensive correlation degree and a selected threshold value, so that the data change is less, the reliability is higher, and meanwhile, the influence of the correlation on the indexes is weakened, so that the reasonability and feasibility of the power supply planning index system are high.

The present invention discloses a food suitable for consumption by patients with diabetic nephropathy. The food is characterized by comprising the following raw materials in parts by weight: 20-30 parts of vitamin A modified soybean powder, 1-5 parts of dephosphorized peanut oil, 20-30 parts of inulin powder, 1-5 parts of rice bran, 5-10 parts of white fungus polysaccharides, 5-10 parts of snow konjac flour, 1-5 parts of a Chinese herbal medicinal extract, 1-2 parts of an artificial sweetener, 1-3 parts of baking-powder and 15-25 pats of water. The present invention also discloses a processingmethod of the food suitable for the consumption by the patients with diabetic nephropathy. The disclosed food suitable for the consumption by the patients with diabetic nephropathy has remarkable effects on treating diabetic nephropathy, has no side effects, is also comprehensive and balanced in nutrients and good in mouthfeel, can be eaten at any time, is excellent in sugar-controlling ability,and can effectively prevent occurrences of other complications.

The invention discloses a method and system for detecting the concentration of gas in insulating oil of a transformer. The method comprises the steps that the detected gas selectively enters hollow-core photonic bandgap-photonic crystal fibers; a laser light source emits a laser into the hollow-core photonic bandgap-photonic crystal fibers to obtain signal light, and an erbium-doped fiber amplifier amplifies the signal light; and a semiconductor photodetector receives the amplified signal light, and an analysis system calculates the gas concentration according to the amplified signal light andtransmits the gas concentration to a monitoring terminal. The fibers are wide in working frequency band, large in action range and high in sensitivity and are an excellent sensitive element; the fibers are provided with excellent low-loss transmission lines and are suitable for remote control; and the fibers are a passive device, fiber materials have the good electrical insulation property, is low in environmental dependence and can be used under the situations of strong electromagnetic interference, a radiation environment and the like. According to the method and the system, the fault typeand the aging degree of the electric power transformer can be accurately detected on line, and the method and the system are of great significance to maintain long-term stable operation of an electricpower system.

The invention provides a method and device for obtaining third-party component information of an open source project, and the method comprises the steps: obtaining a composer.json file provided by theopen source project, and compiling a third-party component according to the composer.json file; detecting a compiling result of the third-party component; if the compilation succeeds, generating a composer.lock file, and analyzing the composer.lock file to obtain corresponding third-party component information; and if the compilation fails, analyzing the composer.json file to obtain correspondingthird-party component information. The processing method for acquiring the third-party component information is more comprehensive, and the dependence on a network environment and a composer plug-ininstallation environment is reduced.