265results about How to "Guaranteed maintenance" patented technology

The invention discloses a multi-copy storage method and a multi-copy storage system for a distributed database system, and belongs to the field of computer software. The multi-copy storage system comprises a main Master node, a standby Master node, a plurality of storage nodes and a connection network. The multi-copy storage method includes steps of 1, storing data in different data pieces; 2, only allowing a user to operate the data in a primary version, and enabling the multi-copy storage system to synchronize change of the data to various copies in real time and guarantee the atomicity; 3, enabling the multi-copy storage system to detect survival conditions of the nodes via synchronous heartbeat detection, and enabling a main Master host to instantly select an available copy to replace the primary version when a certain storage node of the data in the primary version dies; 4, enabling the multi-copy storage system to carry out detection and repair operation for the storage copies regularly, and migrating the data pieces with excessively low quantities of copies to other available storage nodes by means of local storage migration. A main storage model and a standby storage model are adopted for each data piece, and the copies are of completely identical logical structures and are distributed on different physical storage nodes. The multi-copy storage method and the multi-copy storage system have the advantages that the integrity and the availability of the data are protected against the death of optional nodes of the system.

The invention provides a cable insulation state online automatic monitoring and diagnosis system. A real-time data acquisition module acquires discharge data of a cable; a data automatic analysis and processing module processes and analyzes the data and calculates earth leakage capacitive reactance and impedance of the cable, expresses change of the cable insulation state through the change trend of earth leakage capacitive reactance and impedance, sets an early warning threshold with an average value obtained through long term of measurement and calculation acting as a reference value and compares a real-time measurement result with the reference value to obtain relative deviation which is compared with the early warning threshold; a change curve drawing module draws a real-time cable insulation change curve so as to obtain a cable insulation change trend curve and draw an impedance change curve; a cable insulation fault early warning module performs early warning; and a database module is used for storing the acquired data and the results of the aforementioned modules. Monitoring and fault diagnosis can be automatically performed so that the aspect of accuracy of cable insulation monitoring and fault line selection can be powerfully and reliably guaranteed.

The invention relates to an integrated driving service system, which comprises a mobile phone APP, an intelligent driving diagnosis module, an intelligent driving service platform and an intelligent driving service center, wherein the mobile phone APP is loaded on a mobile phone of a vehicle owner; the intelligent driving diagnosis module is integrated on an intelligent driving diagnostic instrument, the intelligent driving service platform is stored with client serial numbers and intelligent driving diagnostic instrument serial numbers which are sequentially arranged according to the time; and the intelligent driving service platform comprises a diagnostic control, a processing server, a storage server and a communication module. The integrated intelligent driving service system takes an intelligent driving vehicle networking national operation service network as a support, provides functions of one-key navigation, remote diagnosis, security setting, emergency rescue, vehicle removing message passing and maintenance.

The embodiment of the invention discloses a data transmission control method and a data transmission control device, which is used for improving reliability of a blacklist filtration technology and lowering misjudgment rate. The method of the embodiment of the invention comprises the following steps that: a data message carrying an address of a host sent by the host is received; whether the host meets a filtering condition or not is judged according to the data message; if so, whether the address of the host is in a credible address list or not is judged; if so, the data message is responded and corresponding operation is carried out. The embodiment of the invention also provides the data transmission control device. The embodiment of the invention can effectively improve the reliability of the blacklist filtration technology and lower the misjudgment rate.

The invention relates to a power supply device for a transformer substation, which comprises two transformers (1,2) and two ATS switches (3,4), wherein ATS switches are connected with sections of alternating current buses (5,6) respectively; each section of the alternating current bus is connected with an alternating current feeder module, a charging module, an intelligent lighting feeder module and the like; and each charging module is connected with the same alternating current bus (7), and the alternating current buses are connected with two sets of the direct current feeder modules, two sets of inversion power modules, two sets of DC-DC modules and one set of accumulators (8) respectively. The power supply device has the advantages that: all the switches are intelligently modularized and integrated in a chassis; a switch programming control hardware platform is established and modules are integrated into the network through network communication technology, so the power switch for the transformer substation has the functions of activating preset programs and completing programmed operation besides the conventional manual control, remote control and protective control according to related information triggering conditions.

The invention belongs to a sizing machine for producing continuous carbon fibers, comprising a box body, a sizing groove arranged in the box body and a driving device fixed on the box body, wherein the sizing groove comprises a groove body and a partition board, a liquid distribution plate and an overflow plate which are arranged in the groove body from left to right and are vertical to the bottom of the groove body; the driving device comprises an inlet driving roller arranged at the upper-left part of the sizing groove, two sizing driving rollers positioned in a sizing area and an outlet driving roller arranged at the upper-right part of the sizing groove; the two sizing driving rollers are horizontally arranged and positioned between the inlet driving roller and the outlet driving roller; and driving shafts of the two sizing driving rollers are higher than the liquid level of a sizing agent of the sizing area. The invention solves the problems of long stay time of the carbon fibers in the sizing agent, poor sizing effect, complex structure, high manufacturing cost and inconvenience for daily cleaning and maintenance caused by the traditional sizing machine. By using the invention, the processing and manufacturing cost of the equipment can be reduced, the time of the carbon fibers in the sizing agent can be prolonged and the favorable sizing effect can be obtained.

The invention relates to synthesizing discharging face end hydraulic support. Two of them are formed a set. It is made up of left support, right support, falling preventing jack, and hydraulic circuit. The left and right support are made up of three top beams, three bases, and three columns all of with are divided into front, middle, and back. The three top beams are hinged orderly. The front top beam is hinged to canopy guard front beam and its jack. The back top beam is hinged to caving shield. The three bases are hinged orderly. It is adopted front back joining among the bases. The front base is connected to loading mechanism. The falling preventing jack is hinged between the top beams and connecting rod. The distance between the front and middle columns, middle and back columns are respectively adapted to the distance that the width of the front back scraper conveyor plus forward lead step pitch. The left support base is set side jack. The invention can realize end head supporting mechanization, reduce manual labor, increase ahead speed. Its structure is simple; weight is light; the support moving is convenient.

The invention relates to a similarity-based fault isolation method of a train suspension system. The method includes taking the train suspension system as a condition monitoring and fault diagnosis object, obtaining a system output residual through analyzing the motion state during operation of a train and Kalman filtering, obtaining fault signal frequency domain information through performing fast Fourier transform on the system output residual, and calculating a similarity score of a currently detected fault and a typical fault through the Eros algorithm to determine the type and position of the current fault. The method achieves intelligent isolation of train suspension system faults and plays important roles in guaranteeing train safe operation, guiding maintenance and overhauling of the train suspension system and improving the train operating efficiency.

The invention relates to a system for detecting settlement and damage of a manhole cover by using sensor data generated by rolling by a vehicle. The system comprises a data collection terminal, an operation service management platform and a user terminal. The data collection terminal is arranged at the manhole cover for collecting the generated acceleration data and/or state data generated by rolling of a manhole cover by a vehicle, and sending the acceleration data and/or state data to an operational service management platform. The operational service management platform is used to determinethe settlement of the manhole cover based on the acceleration data, and/or to determine the damage of the manhole cover according to the state data, and to send alarm information and task work orderinformation to the user terminal when it is determined that the manhole cover is settled or damaged; and the user terminal is configured to receive, display and feed back the alarm information and thetask work order information. The system can employ the sensing data generated by rolling by a vehicle to monitor the settlement and damaging conditions of the manhole cover to allow municipal management personnel to timely and accurately grasp the working state of the manhole cover and reduce the inspection work intensity of the manhole cover maintenance personnel.

The invention provides a fault diagnosis method and system for a main transport pump. The method can comprise the following steps of: obtaining at least two to-be-analyzed data; pre-processing the at least two to-be-analyzed data; extracting characteristic data used for fault diagnosis according to the preprocessed result data; and performing fault diagnosis on the main transport pump according to the extracted characteristic data. According to the embodiment of the invention, at least two to-be-analyzed data is obtained, information loss during analysis of a single vibration signal is effectively avoided, overall monitoring for a state of the main transport pump is realized, and problems that potential weak faults and the like of the main transport pump cannot be effectively recognized as a single signal is easily submersed by noises in the prior art are solved; and furthermore, the to-be-analyzed data is preprocessed, and noise data in the to-be-analyzed data is removed, so that more precise to-be-analyzed data can be obtained, a fault source is timely and accurately judged, and repair and maintenance effects of the main transport pump are effectively guaranteed.

The invention provides a collapsible loess tunnel primary support arch replacement construction method. The method comprises the five steps of carrying out arch replacement construction preparation, temporary measures, soil body reinforcement, primary support steel arch frame pre-reinforcement and arch replacement construction. According to the construction method, a special lining construction rack does not need to be additionally arranged, operation is carried out based on a waterproof plate trolley, rapid construction is facilitated, and the cycle operation time is shortened. Soil body reinforcement and steel arch frame pre-reinforcement are brought into the construction procedure, the safety of operators can be guaranteed, the danger of soil body chipping or collapse in an arch frame dismantling process is effectively avoided, and meanwhile the bearing capacity, integrity and waterproof and anti-permeability performance of tunnel surrounding rock bodies are guaranteed. By adoptingthe arch replacement construction method for construction, the geological problems of collapsible loess tunnel arch crown settlement, peripheral convergence and the like can be effectively solved, thetunnel quality problems of secondary lining cracking, beyond limit and the like caused by large deformation of surrounding rock are prevented, the construction cost is effectively reduced, and the construction period is effectively shortened.

The invention relates to an electronic shift device, comprising a servo motor, a locomotory apparatus and a shift straining ring, wherein the locomotory apparatus comprises a main locomotory apparatus and an assistant locomotory apparatus, and the servo motor is fixedly installed on the main locomotory apparatus; the main locomotory apparatus comprises a guide holder, a connecting flange, a ball screw, a ball nut and a propeller shaft, wherein the connecting flange is fixedly installed on one end of the guide holder to be connected with the servo motor; the shift staining ring is positioned on the other end of the guide holder; the propeller shaft is positioned in the guide holder, one end of the propeller shaft is fixed with the shift straining ring, and a cavity is formed in the other end of the propeller shaft; the ball screw and the ball nut are fixed in the cavity; and the ball screw is connected with the connecting flange by a screw shaft on the end of the ball screw. The assistant locomotory apparatus comprises a spring shaft, a transition shaft, a linear bearing and an assistant straining ring, wherein one end of the spring shaft is fixed with the shift straining ring, the other end of the spring shaft is fixedly arranged on the assistant straining ring, and the transition shaft is installed in the guide holder by the linear bearing. The invention is favorable for ensuring product quality and maintenance, prevents dust from entering, has low cost, and simple and compact structure and improves the service life of products.

The invention discloses a gear box with a position indication function, and is applied to an on-load or no-load tap changer of a transformer. A planetary gear motion principle is adopted, and the position indication function is added on the basis of the only transmission function of the conventional gear box. Therefore, the switch has the position indication function, the design of the switch is perfected, and the shortcomings of the conventional design are overcome.

The invention relates to a single particle test system suitable for processor-like devices, which mainly comprises a tested circuit test board, system power supply, remote control, test software and monitoring software. A method for implementing the system of the invention solves the problems of poor reliability, low power supply performance, difficult operation of the test layout, low efficiency, repeated design of the monitoring software and the like of a traditional single particle test board, the reusability of the test system can be ensured, the development cost and cycle of the test system is also greatly reduced, the operability of the test layout is enhanced, the test efficiency is improved, the test preparation time is shortened, and the valuable single-particle test machine time is utilized to the full extent.

The invention discloses a fully-automatic mechanical insulin injection pump, which comprises a reformed mechanism of a mechanical watch, a continuously variable transmission of a belt friction wheel, an adjusting cam device of technical scheme, a gear rack precise injection and transmission mechanism, a dosage injection mechanism before meal, a medicine feeding system and the like. On the one hand, the output shaft of the mechanism drives the adjusting cam device of the technical scheme to further drive the continuously variable transmission of the belt friction wheel and the gear rack precise injection and transmission mechanism and finally drives the medicine feeding system to perform micro-injection of basic amount. On the other hand, a driven push rod on the cam device pushes a transmission belt on the continuously variable transmission of the belt friction wheel to change the axial position of the friction wheel so as to adjust the transmission ratio of the continuously variable transmission of the belt friction wheel. The fully-automatic mechanical insulin injection pump driven by fully-automatic mechanical way is environmentally friendly, safe and reliable, and can reduce the use cost. Therefore, the invention can vigorously accelerate the treatment effect of diabetes patients, alleviate the economic and spiritual pressure, improve the life quality and obtain good economic and social benefits.

The invention relates to a shower gel for private care. The shower gel consists of a nonionic surfactant, an ampholytic surfactant, a herba centellae extract, an aloe extract, a chrysanthellum indicum extract and a thickening agent, and further consists of EDTA disodium, propanediol, water-soluble jojoba oil, menthol and essence. With the application of the shower gel provided by the invention, human privates can be effectively cleaned and the female privates can be protected under an acid environment; and in addition, an effect of gently nourishing can be achieved.

The invention provides an elevation type tail water overhauling platform, which comprises an elevating gear, a platform main girder, a platform auxiliary girder, a support girder and a platform plate. The elevating gear is connected and fixedly arranged on the platform main girder, the platform auxiliary girder is crossly fixed on the platform main girder, the support girder is fixedly arranged on the platform main girder and/or the platform auxiliary girder, both ends of the support girder are respectively connected and fixed on the platform main girder and/or the platform auxiliary girder, and the platform plate is fixedly arranged on the platform main girder, the platform auxiliary girder and the support girder. The platform causes a two-dimensional plane working position to expand to a three-dimensional solid working position by the elevation and descent of the platform, thus facilitating the inspection, maintenance and overhauling of any part such as tail water pipe inner wall and hydroturbine vanes.

The invention is applicable to the field of devices for mixing solids and liquids, and especially relates to an apparatus for mixing an ultrafine powder with a liquid to form a high-viscosity or high-concentration liquid. The apparatus comprises: at least one solid supply device; at least one liquid supply device; a liquid distribution chamber, wherein a supplied liquid is distributed in the liquid distribution chamber at a predetermined flow rate; a solid conveying chamber for conveying the solid from the solid supply device to a mixing chamber by a screw feeding device; the mixing chamber used for mixing the supplied solid with the liquid to form a suspension; and a rotor chamber, wherein the suspension is rotated in the rotor chamber and is output from an outlet of the rotor chamber inorder to generate a suction effect in an inlet area of the rotor chamber, and the suction effect makes air on the surface of the supplied solid surface substantially discharged. The invention providesthe mixing apparatus having the advantages of simple structure, low energy consumption, simplicity in control, and no blockage or leakage.

The invention discloses a floor-wiping and shoe-wiping dual-purpose machine, namely an electric floor wiping machine which can serve as a shoe wiping machine at the same time and has functions of sweeping, wiping and sucking. A storage battery supply is adopted, and cotton yarn brush rollers are used for wiping the floor, so that the machine integrates the functions of sweeping, wiping and sucking and achieves dry and wet double purposes. When the machine is used for wiping the floor, the brush rolls rotate back and forth in a rolling mode, swing left and right in a reciprocating mode and act in a mode that the height floats with topography; and wet tissues are used for wiping the floor indirectly, so that the machine is simple to operate and convenient for maintenance. When the machine is used for wiping shoes, the effect of induced air dust removal is promoted, so as to bring about benefits for air cleaning. The machine has the characteristics of reducing labor intensity, guaranteeing cleaning quality, improving working efficiency and reducing water and electricity consumption.

The invention discloses an insulation resistance detecting control circuit and detecting method of an electric vehicle. The circuit is based on a balanced bridge; a light-control type relay is used for controlling opening or closing of corresponding bridge arms of the bridge; a high-precision instrumentation amplifier is used for amplifying a weak voltage signal and realizing voltage polarity conversion. On the basis of the basic characteristics of the above circuit, a four-step insulation resistance calculation method is designed. The insulation resistance detecting control circuit and the detecting method, the insulation resistance of the positive and negative terminals can be measured simultaneously; online detection is realized; and the precision and reliability are high.

A frame (10) for an x-ray inspection device comprises a structural member (16) to which is pivoted an arcuate frame (21). An x-ray source (12) is in use mounted directly to the member (16), and an x-ray detector (13) is movable around the frame (21). A three axis sample support for items to be imaged is arranged between the source (12) and detector (13). The frame (10) of the invention is particularly rigid.

The invention discloses an instant brewed solid sour milk beverage and a preparation method thereof. A formula of the instant brewed solid sour milk beverage comprises the following ingredients in parts by weight: 30-50 grams of sour milk powder, 10-15 grams of fat powder, 10-20 grams of maltodextrin, 5-15 grams of pre-gelatinized starch, 0-3 grams of konjac powder or edible gum, 3-8 grams of fruit and vegetable powder, 0-1 grams of probiotic powder, and 2-8 grams of oligosaccharides or water-soluble dietary fiber. The instant brewed solid sour milk beverage product is capable of meeting diversified consumption upgrade requirements of the modern consumers, as well as realizing convenient labor-saving and time-saving sour milk preparation; and thus, taste of rapidly prepared homemade sour milk can be enjoyed with caring of the probiotics on intestinal health ensured. Therefore, the instant brewed solid sour milk beverage is a perfect product which integrates health-caring effect, delicious taste and DIY participation.

The invention discloses a flatly-rotated car top guard which is provided with a first vertical rod and a second vertical rod at an upper section and a lower section, wherein the second vertical rod of the guard can be overturned to be under a first cross rod by means of flat rotation (quadrilateral linkage), and the height of the guard can be reduced, so that the situation that the distance between a car top and a host machine is smaller when the elevator without a machine room stops at the top floor can be met, therefore, the distribution situation with a smaller space above the car top can be met, and the normal running of the car platform sill can not be influenced. The second vertical rod of the guard can be further overturned to be above the first vertical rod by means of flat rotation, so that the height of the guard can be increased, the requirement of the standard on the height of the guard can be met, and the safety can be guaranteed when the overhaul or other operations are carried out on the elevator car roof by workers.