32results about How to "Reduce engineering complexity" patented technology

The invention discloses a method for locating fault of power distribution system with ineffectively grounded neutral point based on transient traveling wave, which can acquire required traveling wave signals and relatively higher detection reliability by arranging equipment only on both sides of circuit. According to the actual site condition, a non-contact electromagnetic field sensor is arranged in a transformer substation to acquire transient voltage and current traveling wave, a power distribution transformer arranged on the tail end of the circuit transmits voltage-variable traveling wave to solve the problem in acquisition of tail-end voltage traveling wave signals, and the type of the fault of the circuit can be rapidly recognized according to the amplitude and the polarity characteristics of a fault traveling wave recorded by the secondary side of the transformer. The invention provides a new fault search algorithm based on the midpoint of time to solve the problem of noncontinuous wave speed of aerial wire and cable. Accordingly, the proposal can achieve the assembly and the operation of the equipment without adding extra primary equipment of the system and powering off the circuit, thus saving the cost and reducing the complex degree of the project. Practical operation shows that the method can locate a fault within a range of plus or minus 100 m.

The earth fault ranging method for automatic on / off circuit in railway belongs to the field of single phase earth fault locating method for small current earth system of electric power network. On-line detectors are installed on two ends of the line, and voltage traveling wave signal the small current earth system in failure generates is transmitted in the voltage signal transformers in the line. The on-line detectors detect the absolute time for the initial failure traveling wave to reach the voltage signal transformers on two ends, determine the time difference, and calculate the precise position in certain equation with the total line length and the traveling wave transmission speed. The present invention has the advantages of being fast and accurate, no influence of unstable electric arc and uneven load, etc.

The invention relates to a biochemical novel technology capable of realizing solar energy utilization. The method comprise the following steps: (1) microalgae in water synthesizes organic matters of the microalgae from inorganic substances of carbon dioxide, water and nutrient elements under a condition of sunlight radiation by photosynthesis, and a microalgae-containing suspension is obtained; (2) dissolved oxygen in water of the microalgae-containing suspension is removed by respiration of the microalgae in the absence of light, and a microalgae suspension without the dissolved oxygen is obtained; (3) the microalgae suspension is directly subjected to anaerobic fermentation without a separation process, and a combustible biogas is obtained, which is gathered and stored to keep in reserve as an energy source; (4) the fermentation liquor after anaerobic fermentation is subjected to aerobic biological oxidation, and the obtained product is recycled by returning to step (1). Compared with the prior art, the biochemical novel technology helps to realize efficient utilization of solar energy, the technology system is extremely simple, and the cost is extremely low.

The invention discloses a well leakage prediction method with seismic data, and relates to the technical field of seismic data application of oil and gas field exploration and development. The well leakage prediction method includes the steps that a, high resolution processing is conducted; b, fine horizon correlation is conducted; c, a fold is automatically identified, specifically, formation curvature is obtained along the seismic horizon; d, the fold property is judged, specifically, anticline or syncline are judged according to positive and negative change of the curvature; e, amplitude difference is extracted, specifically, the amplitude difference of each direction in the range of a target layer is calculated with the center of a micro-amplitude fold; f, the micro-amplitude fold amount is calculated, specifically, according to three parameters of positive and negative sign symbols of the curvature, the curvature and an amplitude difference value, the micro-amplitude fold amount is calculated comprehensively; g, the micro-amplitude fold is classified, specifically, according to the calculated micro-amplitude fold amount, the micro-amplitude fold is classified; and h, a well leakage point is predicted, specifically, according to well trajectory coordinates, possible well leakage point positions are picked up from distribution data of the micro-amplitude fold. According to the well leakage prediction method, the accuracy and the efficiency for predicting the fractured leakage point of a horizontal well according to the micro-amplitude fold are significantly improved.

The invention provides an integrated downhole operation tool based on a bidirectional slip hydraulic permanent packer. The operation tool comprises a test valve, a pressure gauge supporting cylinder,a liquid replacing valve, a plugging valve and the bidirectional slip hydraulic permanent packer, wherein the packer comprises an upper mandrel, a lower mandrel, an upper hydraulic outer cylinder, a lower hydraulic outer cylinder, a first shearing fixing piece, a second shearing fixing piece, a third shearing fixing piece, an upper slip, an upper cone, a rubber cylinder, a lower cone, a lower slip, a lock ring assembly, a double-male short section and an annular piston, wherein the upper slip, the upper cone, the rubber cylinder, the lower cone, the lower slip, the lock ring assembly and the double-male short section are sequentially arranged on the upper mandrel in a sleeving mode from top to bottom, and the annular piston is arranged on the lower mandrel in a sleeving mode. The upper endof the test valve can be connected with the upstream of the integrated downhole operation tool, the lower end of the test valve is connected with the upper end of a pressure gauge, the lower end of the pressure gauge is connected with the upper end of the liquid replacing valve, the lower end of the liquid replacing valve is connected with the upper end of the plugging valve, and the lower end ofthe plugging valve is connected with the bidirectional slip hydraulic permanent packer. The integrated downhole operation tool has the functions of oil testing and well completion production.

The invention discloses a port multiplexing method in a video conference system and a server. The server arranged at a terminal and a video conference server can be used for accepting a first connection initiated by the terminal, receiving a register message sent by the terminal via the first connection, and forwarding the register message to the corresponding video conference server, to achieve registration of the terminal on the video conference server; then a conference invitation message sent by one of the terminal or the video conference server can be received and forwarded to the other party, so that the building of a session between the terminal and the video conference server is achieved; and then the at least one connection initiated by the terminal can be received, various typesof media streams sent by the terminal via the at least one connection is received, and forwarded to the video conference server after being converted, and thus a video conference is achieved. According to the method and the server provided by the invention, the effect that the video conference server provides a port for the terminal is achieved, the field deployment engineering complexity of the video conference system is reduced, the potential safety hazards are reduced, and the user experience is enhanced.

The invention discloses a video character end-to-end detection and recognition method based on deep learning, and belongs to the technical field of video character processing. The method comprises the following steps: performing image size normalization processing on each video frame image of a video sequence segment to be recognized, so that the pre-processed image size is matched with the input of an end-to-end character detection and recognition network; and sequentially inputting the preprocessed images into the end-to-end character detection and recognition network, and obtaining a character recognition result of the video sequence segment to be recognized. According to the invention, end-to-end detection and recognition of video characters are realized, inherent defects such as error accumulation caused by inconsistent multi-module targets are avoided, and the engineering complexity is reduced. In addition, the network structure is optimized through a shared feature extraction network, and meanwhile, a feature map with a relatively large receptive field is input into the recognition branch of the network, so that the feature map can contain information in a larger range compared with input by using an original map, and the recognition accuracy is improved.

The invention discloses a method for locating fault of power distribution system with ineffectively grounded neutral point based on transient traveling wave, which can acquire required traveling wave signals and relatively higher detection reliability by arranging equipment only on both sides of circuit. According to the actual site condition, a non-contact electromagnetic field sensor is arranged in a transformer substation to acquire transient voltage and current traveling wave, a power distribution transformer arranged on the tail end of the circuit transmits voltage-variable traveling wave to solve the problem in acquisition of tail-end voltage traveling wave signals, and the type of the fault of the circuit can be rapidly recognized according to the amplitude and the polarity characteristics of a fault traveling wave recorded by the secondary side of the transformer. The invention provides a new fault search algorithm based on the midpoint of time to solve the problem of noncontinuous wave speed of aerial wire and cable. Accordingly, the proposal can achieve the assembly and the operation of the equipment without adding extra primary equipment of the system and powering off the circuit, thus saving the cost and reducing the complex degree of the project. Practical operation shows that the method can locate a fault within a range of plus or minus 100 m.

The invention provides an integrated method for oil testing and well completion. The integrated method includes the steps that when an oil testing test is performed, an integrated pipe column composedof an upper pipe column and a lower pipe column which are detachably connected is lowered to a downhole predetermined depth, a packer in the integrated pipe column is subjected to setting, the oil testing test is performed, after the oil testing test is completed, a plugging valve is activated to perform shut-in downhole, and the upper pipe column and the lower pipe column are separated and the upper pipe column is lifted out; and when well completion and production are performed, a completion pipe column with a downhole safety valve is lowered into the bottom of a well and connected with thelower pipe column in a back inserting and abutting mode, the plugging valve is opened by pressure from an annulus or an oil pipe to realize well completion, and well completion and production are performed. The integrated method has the beneficial effects that the method has the advantages of saving operation procedures, being high in efficiency of well testing transfer, reducing engineering complexity, protecting oil and gas layers, reducing well control risks, reducing costs and the like.

The present invention relates to a feed trough (5) for a feeding device (4) for feeding flock fibres into a spinner preparation machine, having a main body (13) and at least one elastic lip (15) whichextends across a working width of the feed trough (5). According to the invention, a supporting strip (16) which extends across the working width is provided on the main body (13), the supporting strip (16) being spaced from the elastic lip (15), and the spacing being such that it can be closed by elastic deformation of the elastic lip (15). The invention also relates to a feeding device (4) forfeeding flock fibres into a spinner preparation machine, having a feed roll (6) and a feed trough (5) according to the description above.

The invention discloses a wireless parking lot data acquisition system based on double sensors, which includes a parking space information detection module, a wireless transmission module, a regional center and a cloud database; a parking space information detection module is set at each parking space to collect the data of the parking space Whether the vehicle has situation information, encode the collected information and transmit it to the wireless transmission module; the wireless transmission module receives the data information transmitted by the parking space information detection module and transmits the information to the regional center, and the regional center receives the wireless transmission The data information transmitted by the module is decoded and then sent to the cloud database. The cloud database updates and stores the received information in real time, and the user accesses the cloud database to query the parking space information.

The invention provides an integrated downhole operation tool based on a two-way slip retrievable hydraulic packer. The working tools include: a test valve, a pressure gauge holder, a fluid replacement valve, a plugging valve and a two-way slip retrievable hydraulic packer. Wherein, the packer includes: a central mandrel, a first shearing fixture, a second shearing fixture, a third shearing fixture, and a liquid cylinder sleeved on the outer wall of the central mandrel in sequence from top to bottom The outer cylinder, the locking mandrel and the limit assembly are sequentially sleeved on the outer wall of the locking mandrel, the annular piston, the locking ring assembly, the rubber tube, the cone and the slips. The upper end of the test valve is connected to the upstream of the integrated downhole operation tool, the lower end of the test valve is connected to the upper end of the pressure gauge, the lower end of the pressure gauge is connected to the upper end of the replacement valve, the lower end of the replacement valve is connected to the upper end of the blocking valve, and the lower end of the blocking valve is connected to the two-way Slips recoverable hydraulic packer connection. The invention has the functions of oil testing and well completion and putting into production at the same time, and can be recycled and used.

The invention discloses a gypsiferous salt stratum geological layering method. The gypsiferous salt stratum geological layering method comprises the steps that seismic data of a survey region are obtained, precisely processed and explained, and the top, the bottom and the thickness of a gypsiferous salt stratum are predicted; inversion prediction is carried out on an internal lithological character of the gypsiferous salt stratum; logging is tracked and analyzed, and the gypsiferous salt stratum is layered by combination of auxiliary judgment of logging parameters. The precise processing and explaining of seismic data, lithological character inversion and logging tracking and analysis are combined, then tracking, explaining and analysis while drilling are flexibly applied to the logging layering process, and then the logging parameters are compared and analyzed, so that the gypsiferous salt stratum is layered better.

The invention relates to a biochemical novel technology capable of realizing solar energy utilization. The method comprise the following steps: (1) microalgae in water synthesizes organic matters of the microalgae from inorganic substances of carbon dioxide, water and nutrient elements under a condition of sunlight radiation by photosynthesis, and a microalgae-containing suspension is obtained; (2) dissolved oxygen in water of the microalgae-containing suspension is removed by respiration of the microalgae in the absence of light, and a microalgae suspension without the dissolved oxygen is obtained; (3) the microalgae suspension is directly subjected to anaerobic fermentation without a separation process, and a combustible biogas is obtained, which is gathered and stored to keep in reserve as an energy source; (4) the fermentation liquor after anaerobic fermentation is subjected to aerobic biological oxidation, and the obtained product is recycled by returning to step (1). Compared with the prior art, the biochemical novel technology helps to realize efficient utilization of solar energy, the technology system is extremely simple, and the cost is extremely low.

This application discloses a method for interpreting and running an SFC program, including: determining the target SFC program; traversing the target SFC program to obtain all elements in the target SFC program and the logical relationship between elements; The logical relationship runs the program corresponding to each element in turn. In this application, there is no need to compile and download the SFC program to the controller for execution. Therefore, no matter how large the scale of the project is in this application, no more controllers are needed to support it. While reducing the complexity of the project, it not only reduces system maintenance The complexity also reduces the engineering cost.

The invention belongs to the technical field of intelligent water meter communication, and provides a communication method for a matrix wireless NB-IoT Internet of Things intelligent water meter system. A matrix wireless NB-IoT Internet of Things intelligent water meter system includes: a wireless intelligent water meter terminal, a matrix type Internet of Things router, operator cloud and water company cloud, multiple wireless smart water meter terminals establish communication with a matrix Internet of Things router, and multiple matrix Internet of Things routers transmit data to the water company cloud through the operator cloud. It solves the problems of poor signal, high power consumption, high engineering complexity and limited application scenarios of NB‑IoT, LoRa and other wide area networks, and achieves a wide range of applications, unlimited application scenarios, and signal Strong, wide coverage area, low power consumption effect.

The invention discloses a port multiplexing method and server in a video conferencing system, which can accept the first connection initiated by the terminal by using the server arranged on the terminal and the video conferencing server, receive the registration message sent by the terminal through the first connection, and register The message is forwarded to the corresponding video conferencing server to realize the registration of the terminal on the video conferencing server; after that, it can receive the joining invitation message sent by one of the terminal or the video conferencing server, and forward it to the other party to realize the terminal and the video conferencing server. After the session is established, at least one connection initiated by the terminal can be accepted, and various types of media streams sent by the terminal through the at least one connection can be received, converted and forwarded to the video conference server to realize video conference. The present invention achieves the effect that the video conferencing server provides one port to the terminal, reduces the engineering complexity of on-site deployment of the video conferencing system, reduces potential safety hazards, and improves user experience.

The invention provides an indoor positioning self-adaptive sampling method. The method is characterized in that a periodically triggered self-adaptive database updating period, a sampling transmission interval and the characteristic quantity difference threshold updated by a self-adaptive database triggered by an event are configured through a network side. When a system detects that the database satisfies the condition of the periodic updating or the event updating, sampling instructions are sent through a network side sampling terminal to instruct the sampling terminal to transmit a wireless signal according to the network side configuration, and the network side extracts a wireless signal characteristic quantity of the sampling terminal and dynamically updates the present database. The method enables the system to match dynamic changes of a wireless environment in a self-adaptive mode, and raises the indoor positioning precision of the system.

The invention discloses a double-stator permanent magnet synchronous motor torque ripple weakening method based on a single-side Halbach array. A double-stator permanent magnet synchronous motor is divided into an inner motor and an outer motor based on a superposition method; respectively carrying out finite element simulation calculation on the two split motors to obtain amplitudes of main harmonic components in torques of the internal and external motors; the structure of the inner motor is not changed, and a permanent magnet of the outer motor is changed into a five-section magnetized Halbach array; the magnetizing angle of the magnetic pole in the middle of the Halbach array is 90 degrees, and the magnetizing angles of the two magnetic poles on the same side of the middle magnetic pole are optimized step by step through finite elements to obtain the optimal magnetizing angle. According to the invention, the torque pulsation of the motor can be obviously reduced.

The invention discloses a seismic data set change point prediction method, which relates to the technical field of seismic data application in the exploration and development of oil and gas fields, a. high-resolution processing; b. fine horizon comparison; c. automatic fold recognition: calculating along the seismic horizon Take the formation curvature, find folds, and judge the positive or negative of the curvature at the same time; d. Judgment of the nature of the folds: judge whether it is an anticline or a syncline according to the positive and negative changes of the curvature; Amplitude difference; f. Calculation of micro-amplitude folds: comprehensively calculate micro-amplitude folds according to the three parameters of curvature sign, curvature, and amplitude difference; g. Prediction of casing change points: according to well trajectory coordinates, from micro-amplitude folds The position of the possible casing change point and its slight fold degree are picked from the quantitative data, and the slight fold amount is extracted along the trajectory of the horizontal well to obtain the prediction result of the casing change point. The accuracy and efficiency of the method for predicting casing change points of horizontal wells based on slight folds are significantly improved.

The invention discloses a method for identifying micro-amplitude folds of seismic data, which relates to the technical field of seismic data processing for oil and gas field exploration and development. The steps are: a. High resolution processing: processing conventional lower resolution seismic data into high resolution data ;b. Fine horizon correlation: Accurately pick up seismic horizons according to the usual seismic horizon correlation technology; c. Automatic fold recognition: calculate formation curvature along seismic horizons, find folds, and judge the positive or negative of curvature at the same time; d, Folds Judgment of nature: judging whether it is an anticline or a syncline according to the positive and negative changes of curvature; e. Extracting amplitude difference: calculating the amplitude difference in each direction within the scope of the target layer with the center of the slight fold; f. Calculating the amount of slight fold: according to the positive and negative sign of the curvature , curvature size and amplitude difference value three parameters, comprehensively calculate the slight wrinkle amount. After adopting this method, the recognition accuracy is significantly improved, and the recognition efficiency is high.

The invention discloses a method and a system for realizing a video matrix function. One decoder in a video matrix is a master decoder, while the other decoders are slave decoder, wherein the master decoder is used for maintaining decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end. The method comprises the following steps of: detecting and receiving serial port data by using the master decoder; analyzing the serial port data and determining a control type; according to the serial port data, the decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end, determining a control command and a control object; and transmitting the control command to the control object to realize the video matrix function corresponding to the control type. Through the method and the system, the centralized management and configuration of the decoders can be realized, so that the video matrix function can be realized by adopting a digital method and the engineering complexity can be reduced.

The invention discloses a lost circulation prediction method of seismic data, which relates to the technical field of seismic data application in exploration and development of oil and gas fields, a. high-resolution processing; b. fine horizon comparison; Stratum curvature; d. Judging the nature of folds: judging whether it is an anticline or a syncline according to the positive and negative changes in the curvature; e. Extracting the amplitude difference: calculating the amplitude difference in each direction within the range of the target layer with the center of the slight fold; f. Calculating the amount of the slight fold : According to the three parameters of curvature sign, curvature size and amplitude difference, comprehensively calculate the amount of micro-folds; g, classification of micro-folds: classify micro-folds according to the calculated amount of micro-folds; h, lost circulation Point prediction: According to the coordinates of the well trajectory, the position of the possible lost circulation point is picked from the micro-fold distribution data. The accuracy and efficiency of the method for predicting fractured lost circulation points of horizontal wells based on slight folds are significantly improved.

The invention provides a unit test case generation method which can be applied to the financial field or other technical fields. The method comprises the steps of obtaining first data; partial fields in a preset case template are replaced with the first data, an initial test case is obtained, and the partial fields comprise fields with replacement marks; and executing the initial test case, and performing mock on the initial test case to generate a unit test case. The invention further provides a unit test case generation device and equipment, a storage medium and a program product.

The invention relates to a feed chute (5) for a feed device (4) for feeding fiber bundles into a spinning preparation machine, said feed chute comprising a body (13) and at least one elastic lip ( 15), the elastic lip extends over the working width of the feed slot (5). According to the invention, a support strip (16) is arranged on said base body (13), said support strip extending along said working width, said support strip (16) being at a distance from said elastic lip (15) , said distance being such that said distance can be eliminated by elastic deformation of said elastic lip (15). The invention also relates to a feed device (4) for feeding fiber bundles into a spinning preparation machine, said feed device comprising a feed roller (6) and a feed chute (5) according to the preceding description.

The invention relates to the technical field of image processing, in particular to a white balance processing method and system for color imaging of an image sensor, and the method comprises the following steps: 1), carrying out the statistics and function fitting of the data of R, G and B channels of a white region under different brightness, and making a gray mapping table in combination with an image gray value range; step 2), searching and mapping the gray value of the original image to be processed by using a gray mapping table to obtain a mapped gray value; and then the mapping gray value is converted, and a color image after white balance processing is obtained after conversion. According to the white balance processing method for color imaging of the image sensor, all operation procedures can be completed in common scenes, and the image processing speed is high. During operation, a correct color image after white balance processing can be output only by searching and correspondingly converting the data in the original image and the data in the gray mapping table.

The earth fault ranging method for automatic on / off circuit in railway belongs to the field of single phase earth fault locating method for small current earth system of electric power network. On-line detectors are installed on two ends of the line, and voltage traveling wave signal the small current earth system in failure generates is transmitted in the voltage signal transformers in the line. The on-line detectors detect the absolute time for the initial failure traveling wave to reach the voltage signal transformers on two ends, determine the time difference, and calculate the precise position in certain equation with the total line length and the traveling wave transmission speed. The present invention has the advantages of being fast and accurate, no influence of unstable electric arc and uneven load, etc.