639results about How to "Fix work" patented technology

The invention relates to a fully sealed refrigerant pump and an application thereof in refrigeration systems of high-rise buildings. Structurally, the invention is realized by additional arrangement of, based on a composite structure of a pump body (2) and a traction motor thereof, a sealed shell (7) (the optimal sealing structure is fully sealing of the pump body and the traction motor from surroundings by metal welding) and an interface equipped with a gas pressure equalizing pipe (3), and pipeline connection of the liquid refrigerant pump (B) device (system) containing the pump body (2) in the refrigeration systems of low-temperature cold storage warehouses in high-rise buildings.

The invention discloses a patrol method of an intelligent patrol system on basis of an Android mobile phone and belongs to the technical field of Internet of Things. The intelligent patrol system comprises an Android mobile phone terminal and a system management platform. Communication between the Android mobile phone terminal and the system management platform can be achieved through a web service port by means of a fourth-generation (4G) wireless communication network or wireless fidelity (WIFI). A patroller holds an intelligent terminal to scan a two-dimension code label of a to-be-patrolled station to obtain geographical location information and equipment information data of the station, the intelligent terminal can call location data that are sent by a communication operator base station to locate the patroller, the obtained location information is matched with the location information that is obtained through scanning of a two-dimension code of the station, the patroller can be supervised, the location information is matched with an electronic map of the intelligent terminal through global position system (GPS) and geographic information system (GIS) technologies so as to display coordinates, and dynamic location information of the patroller can be visually obtained. By means of the patrol method of the intelligent patrol system on basis of the Android mobile phone, inconvenience and defects caused by poor supervision of patrolling work can be excellently eliminated, and management qualities and efficiency are greatly improved.

The invention discloses a running state monitoring and failure diagnosis method for a tobacco logistics system. The method comprises the following steps: (1) acquiring the whole running state information of the logistics system in real time on line through a data acquisition system; (2) remotely monitoring the state of common logistics system equipment in real time, and performing failure diagnosis; (3) firstly, determining various combination modes of the failure reasons of each key logistics equipment, and secondly, inputting a diagnosis rule into an SQL (Structured Query Language) database of a failure diagnosis server, wherein the diagnosis rule serves as the source of a failure experience knowledge base; (4) storing failure result information which is obtained by automatic diagnosis through the failure diagnosis server and serves as alarm information into a failure alarm record base, triggering a wireless alarm module, and informing an on-duty equipment maintainer of failure information immediately in a short message mode. According to the method, the failure burst rate of the tobacco logistics system is effectively reduced, the failure maintenance efficiency is improved, and the equipment maintenance cost is reduced.

The invention discloses a preparation method for a high-slump-retention polycarboxylate water reducer. The preparation method comprises the following steps of: esterifying methoxylpolyethylene glycol monomethyl ethers with different molecular weights with methacrylic acid and a mixed polymerization inhibitor for a period of time under the action of a catalyst and at a certain temperature, then adding allyl alcohol in one time, further esterifying in the same conditions to obtain an esterified macromonomer MP containing crosslinking monomer allyl methacrylate; then performing aqueous solution polymerization on the MP, unsaturated sulfonate, (meth)acrylate unsaturated monomers and a chain transfer agent in a low-temperature condition and within a redox initiation system; and finally adding caustic soda liquid to neutralize, so as to obtain the polycarboxylate water reducer with a certain concentration. The high-slump-retention polycarboxylate water reducer prepared by the preparation method disclosed by the invention is a high-performance water reducer which is prepared at a low temperature by virtue of a molecular structure design, as well as is high in slump retention, excellent in dispersing performance, good in adaptability, simple in process, pollution-free, low in energy consumption, and easy to realize industrialized production.

The invention provides a file creation method, a device, a device and a storage medium, belonging to the technical field of image processing. The file building method comprises the following steps: clustering the captured portrait to obtain at least one clustering result; Determining a standard portrait matching the clustering result from the archival database; filing the clustering result with the standard portrait. The invention aggregates the portraits of the same person at different times or at different positions in a clustering result by performing clustering treatment on the portraits captured, a standard portrait matching the clustering result is determined from the file database; The clustering result is filed in the personal file corresponding to the standard portrait, The invention realizes the file creation of the captured portrait, saves manpower to a great extent, effectively improves the accuracy of the archives establishment, solves the work of analyzing and archiving the number of the portrait at the tens of billions level, ensures the accuracy of the archives establishment, and can be competent for large-scale file management.

The invention discloses a fractal and composite right / left-handed transmission line-based miniature double-frequency microstrip rat-race coupler, which consists of four composite right / left-handed transmission line (CRLH TL) braches and four input / output ports, wherein the four CRLH TL branches are sequentially connected end to end, and have a Koch fractal structure respectively; the four input / output ports are connected between every two adjacent branches respectively, and are used for connecting small A type (SMA) joints; the four branches comprise three CRLH TL branches with completely identical circuit parameters and the CRLH TL branch with different circuit parameters, namely, the four branches comprise three transmission line branches which realize +90 degrees and -90 degrees on the frequency bands of fL and fH respectively and the transmission line branch which realizes -90 degrees and -270 degrees on the frequency bands of fL and fH respectively; and each of the four branches is formed by concatenating two CRLH TL units. The fractal and composite right / left-handed transmission line-based miniature double-frequency microstrip rat-race coupler is rationally designed, convenient to realize, good in using effects, highly accuracy and widely applicable, and can effectively solve the problems of complex method, poor using effects, large volume, incapability of really working in a double-frequency mode and the like of the conventional double-frequency rat-race coupler.

The invention discloses a method for mechanically mining coal by using a steep seam pseudo inclination bracing type retractable flexible shield support. By the method, a steep seam coal mining machine and a bracing type retractable flexible shield support are provided. The method comprises the following steps of: 1, mining, namely mining by arranging the coal mining machine on a pseudo inclination working surface; 2, loading and transporting the coal, namely raking a falling coal body to a conveying mechanism and conveying the falling coal body to the rear part of the coal mining machine by using left and right gathering arms of the coal mining machine, sliding the falling coal body to a coal sliding hole truck loading point through a sliding chute, loading and transporting; 3, supporting an operating area, namely arranging the bracing type retractable flexible shield support in the operating area; 4, ventilating the working surface; 5, atomizing for dust removal; 6, exploiting upper triangle coal; and 7, recycling lower triangle coal, namely dredging a finishing cut, lowering the shield support to a horizontal position gradually, disassembling and decomposing the coal mining machine, transporting to the next stoping working surface and completely recycling the shield support when the working surface is propelled to a place neara district rise hole. By the method, the problems of low recovery ratio, low mechanization degree, low single yield of the working surface, severe working environment, high probability of malignant accidents and the like in domestic and oversea steep seams can be radically solved.

This is an underground hidden digging separated working method it is double layers or multiple layers complex lining brick structure. It contains: Use the existing shallow bury hidden digging technology to finish the lining bricks structure upper parts, and use the routine technology to finish the original support and protection. After finished the original protection and support of vault part, to spread out the water-proof plate and finish the middle separated plate to use the ground model, and pouring cement slurry to make the upper part structure. Under the protected of middle separated plate, then to make the structure under the middle separated plate, to finish the whole working process finally.

The invention provides a full-automatic drill grinder. The full-automatic drill grinder comprises a transposition device as well as a feeding device, a grinding device, a detection device and a discharge device which are located around the transposition device, wherein the transposition device comprises a transposition disk and clamping heads arranged on the transposition disk, drills are mounted on the clamping heads through the feeding device, and then the transposition disk is rotated, so that the drills sequentially passes through the grinding device, the detection device and the discharge device for corresponding processing, a whole grinding process can be finished after one-time clamping, both the dismounting time of the drills and errors can be reduced, and the auxiliary time is shortened; servo motors are mounted behind the clamping heads and used for driving the drills on the clamping heads to rotate, so that grinding angles of the drills are adjusted correctly; and the drill grinder is controlled by a program and high in accuracy, the pass percent of the drills is increased, the labor condition is improved, the problems that workers are prone to fatigue and sight losing due to work under microscopes for a long time are solved, and the full-automatic drill grinder is widely applicable to grinding machining of various fine drills.

The invention discloses an engineering maintenance scheduling management system. The engineering maintenance scheduling management system comprises a background server responsible for scheduling management and a mobile terminal worn on a maintainer, the background server performs ordering, order sending, order receiving, waiting and order canceling and also performs data collection and analysis, through platform oriented and mobile centralized maintenance scheduling, the maintenance respond speed is obviously improved, the user experience is improved, the maintenance work flow is simplified, the interaction efficiency is improved, the maintenance quality is effectively controlled, the maintenance controllability is improved, and meanwhile, the maintainer reduction is realized, the lazy and negative working attitude is effectively avoided, and the satisfaction degree of the client is obviously improved. Report forms and indexes can be extracted effectively and quickly, the field maintenance execution condition of each project can be realized through the background and report form data, and the background and report form data provide support for making decisions. The remote maintenance work check can be performed at any time through the background, and the project is early warned to avoid risk through different data report forms of the system.

The invention relates to a lean oil direct injection and mixing low-pollution combustion chamber. The lean oil direct injection and mixing low-pollution combustion chamber is composed of a diffuser, acombustion chamber outer case, a combustion chamber inner case, a combustion chamber head, a flame tube outer wall and a flame tube inner wall, wherein combustion air all enters a flame tube from thecombustion chamber head; the combustion chamber head is divided into an on-duty grade and a main combustion grade through a grading and partitioning combustion strategy; the on-duty grade and the main combustion grade both adopt a direct injection and mixing combustion method, the phenomena of spontaneous combustion and tempering are effectively avoided, and the risk of occurrence of oscillationcombustion is lowered; the lean oil direct injection and mixing low-pollution combustion chamber only works in an on-duty grade mode under an idling rating state, the designed partial equivalence ratio is higher, and the work stability of the combustion chamber is guaranteed; and with the increase of the work state of the combustion chamber, the main combustion grade is opened gradually, the maincombustion grade and the on-duty grade work simultaneously under a large state, the designed combustion area average equivalence ratio is lower, the average temperature of the combustion area is effectively lowered, and therefore the generation quantity of pollutants is lowered.

The invention relates to improvement of an electroscopic instrument for high voltage power supply lines of an electric system, in particular to a digital display high-voltage electroscope of a telescopic rod. The digital display high-voltage electroscope of the telescopic rod is provided with the telescopic rod, a probe hook and a series resistor and is characterized in that the other end of the series resistor extends out the pipe wall of an insulation rod A to be provided with a signal output end. A signal tester is arranged on an insulation rod B and is composed of a casing, a built-in circuit, a built-in power supply, a warning light, a grounded end, a power switch, an alarm, a time delay switch, a self-checking button, a digital display screen and a signal input end. The signal input end arranged in the signal tester is connected with the signal output end of the series resistor through a connection wire, and the grounded end arranged in the signal tester is grounded through a connection wire. The digital display high-voltage electroscope of the telescopic rod solves the problems of incapability in distinguishing of overhaul line sensing voltage and working voltage existing in electroscopic operation of the existing high-voltage electroscope and low electroscopic operation, and is mainly used for improvement of the existing high-voltage electroscope.

The invention discloses a data sharing method, which comprises the following steps: when receiving a data sharing request, through a server, obtaining data to be processed corresponding to the data sharing request and attribute information corresponding to the data to be processed; carrying out data statistics on the obtained data to be processed according to preset rules to obtain statistical information corresponding to the data to be processed; and updating a data sharing interface corresponding to the server based on the attribute information and the statistical information, and sending the updated data sharing interface to a preset terminal. The invention also discloses a data sharing device and a computer readable storage medium. Data sharing can be realized only by uploading the data to be processed to the server when carrying out data sharing in the server without redeveloping customized database table interfaces during data interaction every time, thereby simplifying flow of data interaction and improving data interaction efficiency.

The invention discloses a suppression method for single-frequency interference in an OFDM (Orthogonal Frequency Division Multiplexing) communication system. The suppression method comprises the following steps of: filtering the detected single-frequency interference in a time domain by an IIR (Infinite Impulse Response) notching filter through a time domain and frequency domain processing combination method, and regulating the signal power based on digital automatic gain control to ensure that the signal input powder is stabilized in the optimal input power when subsequent digital signal processes are carried out; and carrying out shielding processing on subcarriers interfered by single frequency in a frequency domain to ensure that effective data are not transmitted by the subcarriers. According to the method provided by the invention, the single-frequency interference can be effectively resisted, the single-frequency interference resistance of the OFDM communication system is improved, and the throughput of the system is improved; and when the single-frequency interference exits in the OFDM communication system, the normal operation of the system is guaranteed.

The invention provides an active balanced battery management system, which comprises a host computer and a CAN communication module, wherein the host computer transmits a control instruction to the battery management system through the CAN communication module; the battery management system transmits data to the host computer through the CAN communication module and is connected with an on-board control system and a charger through the CAN communication module; and the battery management system is also connected with a voltage collection module, a current collection module and a temperature collection module through an RS232 and obtains AD sampled data of voltage, current and temperature of a battery. A novel SOC calculation mode is provided, so that the problem that the prior art is inaccurate in calculation accuracy of the battery capacity is solved. The parameters of an upper limit and a lower limit of the battery capacity, charging and discharging current, a battery temperature and the like are set through the host computer; and the battery is effectively protected. The invention provides a novel charging mode standard, so that the battery can be more effectively charged.

The invention discloses a refrigerator and a defrosting control method and device thereof. The method comprises the following steps that whether a refrigerator door is opened or not is judged in the refrigerator operation process; if the refrigerator door is opened, the continuous refrigerator door opening time is obtained, and environment parameters when the refrigerator door is opened are obtained; the refrigerator defrosting period is adjusted according to the continuous door opening time and the environment parameters when the refrigerator door is opened; and when the cumulative operation time of a compressor of the refrigerator reaches the adjusted defrosting period, the refrigerator is controlled to execute a defrosting program. Through the method, by dynamically adjusting the defrosting period according to the environment parameters, the problem that cooling capacity is wasted due to the too short defrosting period when a fixed defrosting period is adopted is effectively solved, or the problem that a refrigerator evaporator is blocked and cannot work normally due to the too long defrosting period is effectively solved.

The embodiment of the invention provides a data transmission method, a terminal and a terminal system. The data transmission method is applied to a first terminal and the first terminal is connected with the second terminal. The data transmission method is characterized by comprising the steps that: when the first terminal and the second terminal meet the preset first condition, the terminal obtains working scene data corresponding to at least one application according to a current working state of the at least one application operating in the second terminal; and after the first terminal is connected with a third terminal, the first terminal transmits the working scene data to the third terminal so as to restore a working state of at least one application of the second terminal by the third terminal according to the working scene data. The embodiment of the invention is used for carrying output backup and seamless restoration on a working scene of a user by using an application mode cooperative to an extension device, thus the convenience of mobile officing is improved.

The invention discloses a high-voltage line inspection robot of wheel mechanisms. The high-voltage line inspection robot with the wheel mechanisms can grab positions of wires without accurate positioning, is wide in applicability and high in versatility performance, is not easily affected by external factors during barrier crossing, and is high in stability. The technical solution scheme employed by the invention is that the high-voltage line inspection robot with the wheel mechanisms comprises an industrial camera and a power supply system and is characterized by further comprising at least three independent inspection modules coaxially connected via shaft couplings, each inspection module is provided with two wheel mechanisms which can rotate and can be open and closed as a transmission shaft rotates, each inspection module is provided with a power system controlling the opening and closing of the wheel mechanisms, and at least one inspection module is provided with a power system controlling rotation of the wheel mechanisms.

The present invention provides a method for signal feedback and apparatus thereof, a method for power supply and equipment thereof, and a method for controlling and system thereof. The present invention collects an input voltage of a power receiving equipment, and feeds back the corresponding signal to a power supply equipment according to the collected input voltage, and the power supply equipment adjusts an output voltage according to the received signal.

The invention belongs to the technical field of grinders, and relates to a full-automatic numerical control screw tap thread grinder. A rear support plate moving along a longitudinal slide rail is arranged at the rear side of a work table of a grinder base, a grinding wheel spindle is arranged at the front side of the rear support plate, driven by a power device to rotate and provided with a screw tap relief-grind grinding wheel, a sliding block moving along a vertical slide rail is arranged on the portion, located at the rear side of the grinding wheel spindle, of the rear support plate, and a diamond wheel is installed on a diamond rotating shaft arranged on the sliding block; a front support plate moving transversely is arranged at the front side of the work table, a swing tray is hinged to the front support plate, an indexing workpiece clamp is arranged at one side of the swing tray, a tailstock centre moving along a transverse slide rail is arranged at the other side of the swing tray, a swing shaft driven by the power device to rotate and a cam installed on the swing shaft are hinged to the front side of the front support plate, and actions of the power device are controlled by a controller program. The full-automatic numerical control taped thread grinder has the advantages that the screw tap relief-grind grinding wheel is high in finishing accuracy, clamping frequency is reduced, the accuracy and efficiency of screw tap machining are improved, and the grinder is applicable to the field of full-automatic numerical control screw tap thread grinders.

The invention relates to an intelligent fish feeding system based on a cloud database. The system comprises a tank body, a subsidiary cabinet, a water quality monitoring module, a fish life support module, a water temperature adjusting module, a display module, an image collection module, a central controller, a wireless communication module and an image recognition module. The water quality monitoring module, the fish life support module, the water temperature adjusting module and the display module are all electrically connected with the central controller. The image collection module is connected with the central controller through the image recognition module. The central controller is simultaneously connected with the cloud database and an external intelligent terminal through the wireless communication module. The external intelligent terminal is simultaneously connected with the wireless communication module and the cloud database. The external portion of the tank body is fixedto the subsidiary cabinet. The intelligent fish feeding system based on the cloud database is capable of collecting and recognizing images of fish needing to be fed and recognizing the type of the fish, the most suitable feeding environment for the corresponding fish is automatically generated, meanwhile, the environment in the tank and the fish motion situation can be monitored, and feed is placed regularly.

The invention discloses a control method and system of a movable carrier and a control system of an unmanned plane. The method comprises: when a control terminal obtains information that an abnormal situation occurs at a main movable carrier, a standby movable carrier is controlled to replace the main movable carrier for endurance; and after successful replacement, the standby movable carrier continuously executes a work task that is being executed by the main movable carrier. According to the invention, a technical problem that work tasks that contain police monitoring and disaster monitoring and the like and need long time can not be completed easily because an abnormal situation, like a fault or energy running out, occurs at the movable carrier can be solved.

The invention discloses a hydrocracking startup method. The hydrocracking startup method comprises the following steps: introducing low-nitrogen startup oil, hydrogen and a sulfurizing reagent into a hydrocracking unit; then carrying out sulfuration on a hydrocracking catalyst at a constant temperature of 220 to 260 DEG C; after the content of hydrogen sulfide in to-be-cycled hydrogen reaches 3000 to 5000 ppm, reducing the adding rate of the sulfurizing reagent and increasing the bed temperature of the hydrocracking catalyst; when the bed temperature of the hydrocracking catalyst reaches 310 to 330 DEG C, increasing the adding rate of the sulfurizing reagent; and continuing constant-temperature sulfuration, then allowing the temperature to rise to 340 to 350 DEG C and introducing raw oil for a reaction, wherein the amount of the hydrocracking catalyst is 0.5 to 8% by weight. The method provided by the invention is short in time for startup, raw material switching and entry into a stable production state, avoids the consumption of a passivating agent and potential hazards during ammonia injection in the startup process, reduces energy consumption, and decreases pollution of the passivating agent to environment and harm of the passivating agent to human beings.

The invention relates to a flexible nanofiber-based electronic skin as well as a preparation method, and belongs to the field of flexible sensors. The flexible nanofiber-based electronic skin is characterized in that the electronic skin is prepared by attaching two layers of flexible nanofiber membranes which are treated by conductive treatment, and the thickness of the flexible nanofiber membrane is 30-500[mu]m, wherein at least one surface of the two surfaces which are attached is provided with micro groove or micro protrusion structures. The electronic skin solves the problems of high working voltage, large power consumption and low sensitivity in prior art; the electronic skin has the effects of sensitive layers and conductive electrodes with a single structure and a simple process, and the electronic skin can be used for industrial production; the electronic skin has good biocompatibility and can be well integrated with a human skin, and is convenient for constructing a wearable device; a unique nanostructure is applied to the electronic skin, so that the electronic skin has higher sensitivity and better stability; and the whole device is light, small, smart and is convenient for carrying.

The invention discloses a deep learning sentiment analysis model based on semantic enhancement, and the model consists of six layers: a word embedding layer, a sentiment semantic enhancement layer, aCNN convolution sampling layer, a pooling layer, an LSTM layer, and a sentiment classification layer in sequence from the bottom to the top. The word embedding layer converts words of the sentences into low-dimension word vectors; the emotion semantic enhancement layer is used for enhancing emotion semantics of the model; the CNN convolution sampling layer is used for automatically extracting wordfeatures; the pooling layer is used for reducing the dimension of the feature vector; the LSTM layer is used for capturing a long-distance dependency relationship in the statement and memorizing long-time dependency serialized information; and the sentiment classification layer adopts Softmax to perform sentiment classification. According to the method, the LSTM layer is added, so that the emotion analysis accuracy can be improved, and meanwhile, the emotion semantic enhancement layer is added, so that the emotion semantics of the model is enhanced, and the emotion analysis effect is improved; the invention further discloses a sentiment analysis method based on the deep learning sentiment analysis model, and the accuracy of Chinese short text sentiment analysis can be improved.

A composite cementing material is prepared from the calcined cement-stone powder (50-70 Wt%) and the slag of blast furnace (30-50 Wt%). Said calcined cement-stone powder is prepared from the waste concrete through separating cement-stone, calcining at 600-800 deg.C grinding.

The invention discloses an aquaculture feeding system and aims at providing the feeding system capable of effectively solving the problems that feed wastage is caused during feeding of a feeder and the feeder cannot work normally when the feed is damped. The aquaculture feeding system comprises a feed box. An isolating layer is arranged below the top surface of the chamber body of the feed box. A first vertical guide rod is arranged on the lower surface of the isolating layer. A baffle which can move along the first vertical guide rod is arranged below the isolating layer. The buoyancy force of the baffle is larger than gravity force. A plurality of upper discharge holes are arranged on the isolating layer. A plurality of lower discharge holes are arranged on the baffle. The upper discharge holes and the lower discharge holes are distributed in a staggered way. A motor is arranged at the middle part of the upper surface of the isolating layer. A vertical screw is arranged in the chamber body of the feed box. The vertical screw penetrates through the baffle and the isolating layer and is connected with the rotor of the motor. A nut is arranged at the middle part of the baffle and is sheathed on the vertical screw. A coaxial polished rod is arranged at the lower end of the vertical screw. An impeller is arranged at the lower part of the polished rod. A plurality of discharge holes are arranged on the side surface of the feed box relative to the impeller.

The invention relates to a method for manufacturing a major diameter enclosed impeller, and belongs to the technical field of aerospace equipment manufacture. The method comprises the following steps: rough machining a cap of an impeller; rough machining the impeller; assembling to form an impeller assembly craft piece; clamping and brazing; rough machining an excircle and a stepped surface on the impeller side; rough machining the cap of the impeller; fine machining an outline profile and an inner bore on the impeller side; fine machining an outer arc surface of the cap of the impeller; performing dynamic balance correction, and the like. The method has the benefits as follows: a practical efficient machining scheme is provided for machining a major diameter enclosed brazed impeller with balance precision of G0.2; the machined blower impeller is high in balance precision; the problem about potential hazard existing in use of the product due to excessive metal margin removal during high-precision dynamic balancing process can be solved; the service life and the working reliability of the product are improved.

The invention discloses a scanning method for obtaining house index parameters based on a three-dimensional laser detection system. The scanning method comprises setting up a site at an appropriate position of the house; arranging a scanner leveling on a fixing foot of the site; placing reflection targets around the scanner, and adjusting the target center position of each reflection target so asto make the reflection targets parallel to the optical axis of the scanner; starting the scanner to scan the house structure after the scanning parameters of the scanner are initialized; collecting elevation coordinate of each reflection target; performing site splicing through the elevation coordinates of multiple reflection targets; converting the coordinate system of the scanner into a matchedengineering coordinate system and forming point cloud data therein; performing identification on house members, and marking the positions and the identification results of the identified house membersin the point cloud data; and importing a plane figure of the house generated in CAD to obtain the geometric parameters of the overall index of the house. According to the scanning method for obtaining the house index parameters based on the three-dimensional laser detection system, the manual measurement mode is replaced by the three-dimensional laser scanning detection system, so that the detection efficiency and the detection precision are improved.