496results about How to "Solve stress" patented technology

The invention relates to an optical network unit management method and an optical network unit. The optical network unit management method includes the steps of registration, online and offline management, power supply management, multicast, version upgrading and the like. The optical network unit registration method is achieved based on the optical network unit. The optical network unit comprises processing modules and multiple VONUs. The multiple VONUs correspond to multiple user physical ports or user logical ports one to one respectively. The registration process of all the VONUs is controlled through the processing modules in a coordination mode. The multiple VONUs are virtualized in the optical network unit, the VONUs correspond to the user physical ports and/or the user logical ports one to one respectively, and then the problem that the operation, maintenance and power consumption cost pressure of existing optical network unit equipment is large is solved.

The invention relates to a measuring method and a device for measuring optical fiber multipoint temperature and pressure of an intelligent well, belonging to the technical field of intelligent wells. The measuring method comprises that a plurality of optical fiber temperature sensors and optical fiber pressure sensors are arranged on an optical cable, wherein reversed lights which are reflected by the optical fiber temperature sensors and the optical fiber pressure sensors are respectively transformed into spectroscopic data which is transmitted to a processor, thereby respectively obtaining reflectance spectrums of all sensors, and a wave length value which is relative to the largest reflection rate is used as characteristic parameter of relative temperature sensors, the length of the cavity of each pressure sensor is calculated to be used as characteristic parameter of relative pressure sensors, and then the characteristic parameters of relative temperature and relative pressure sensors are compared with the characteristic parameter calibration curve to gain temperature reading or pressure reading of the optical fiber sensors. The device comprises a broad band light source, a modularized optical spectrometer, a data transmission line, a data processor, a first section optical fiber and a second section optical fiber, a optical fiber coupling, an optical cable, and a two-parameter sensor group of optical fiber temperature and optical fiber pressure. The invention solves the problems of pressure float and temperature crossfire when optical fiber grating technology is applied to a pressure sensor.

The invention discloses an air conditioning system and a pressure adjusting method for the same. The air conditioning system comprises an outdoor unit and at least one indoor unit. The outdoor unit comprises a pressure adjusting device; the pressure adjusting device is arranged at the refrigerant discharging pipe of the outdoor unit; the pressure adjusting device comprises a pressure sensor, a control unit and a flow adjusting unit, wherein the pressure sensor is used for detecting an actual pressure value at the refrigerant discharging pipe of the outdoor unit; the control unit is used for comparing the actual pressure value detected by the pressure sensor and a pre-set pressure threshold value, and controlling the opening of the flow adjusting unit according to a comparing result; and the flow adjusting unit is used for adjusting the flow of flowing a refrigerant of the outdoor unit under control of the control unit. According to the air conditioning system provided by the invention, hyper-normal high-drop connection between the indoor unit and outdoor unit of the air conditioning system can be realized, so that the requirement of mounting the air conditioning system, such as a multi-couple unit, within a higher drop range can be met.

The invention discloses an intelligent load balancing method based on a c/s (Client/Server) architecture. The method comprises the following steps that: (1) a communication connection is established between all task nodes and a load balancer by employing a c/s star structure, wherein the task nodes and the load balancer are initialized, and a long connection is maintained; (2) the task nodes periodically transmit node information to the load balancer; (3) the load balancer calculates a performance value of each task node according to the node information and determines distribution of the tasks according to the variation tendency of the performance value of each task node, if the performance of a certain task node is improved, tasks in a total task queue are distributed to the task nodes, and if the performance of a certain task node is reduced, the tasks in the total task queue are paused to be distributed to the task nodes; (4) the task nodes receive the distributed tasks and feed back a task execution log to the load balancer. According to the method, dynamic regulation of the tasks can be realized, and fine intelligent load balancing is achieved.

The invention belongs to the technical field of intelligent management, and provides a distributed intelligent lease management system for public bikes. An open parking management mode is adopted, parking capacity of a station is increased, users can pull out cards to return bikes as long as entering a marked station controller range, and limitations of the number of parking piles are avoided; since a green back-up energy resource is adopted, a temporary station is extremely convenient to set up; a monitoring management center or a management person only needs to reset a maximum allowable parking quantity, and then a system can automatically reset and immediately allows more bike returning operations of the users; a bike controller and an electronic control lock can be completely mounted in a structural frame of each bike, electronic demounting preventing protection is provided, once a non-maintenance person detaches the bike controllers arbitrarily, the bike controllers can enter an intrusion protection state, and the bikes can be locked automatically; meanwhile, a voice alarm function is started, and anti-theft safety performance of the bikes is further improved.

The invention relates to a method for preparing coal gas, high-grade active carbon, water glass and silicate phosphate from rice hulls, which comprises the following steps of: smouldering, carbonizing and activating the rice hulls to produce the coal gas for power generation and to obtain rice hull carbon; activating the rice hull carbon with acid and alkaline to obtain low-grade active carbon, packaging the low-grade active carbon in a dust-proof explosion-proof sealed mode, and activating at moderate temperature, secondary high temperature and high temperature to finally obtain the high-grade active carbon and produce the water glass and the silicate phosphate simultaneously. The defect of low-grade active carbon prepared from the rice hull carbon in the prior art is overcome. The invention has reasonable technological method and technological process, and solves the technical obstacles on moderate temperature and high temperature activation of the rice hull carbon. The rice hull carbon obtained after preparing the coal gas from the rice hulls can be directly used for producing the high-grade active carbon, the water glass and the silicate phosphate, and the economical benefits and the social benefits of the rice hulls are effectively increased. Large-scale industrial production can be realized, and a new approach is provided for realizing a complete industrial chain of agriculture industrialization and rice processing.

The invention relates to a log collection system, a log collection method and a log recycling server. The log collection system comprises acceleration servers, log recycling servers and a center server, wherein the acceleration servers are used for generating log files and uploading the log files to the log recycling server; the log recycling servers are used for receiving the log files uploaded by the plurality of acceleration servers and uploading the received log files to the center server; the center server is used for receiving log files uploaded by the plurality of log recycling servers; and the number of the log recycling servers is smaller than that of the acceleration servers. The log collection system, the log collection method and the log recycling server can effectively reduce the pressure of the center server and the network overhead, and improve transmission efficiency.

The invention discloses a construction method for one-time formation of a concrete pool wall. The method includes the steps of erection of a pool wall reinforced frame, mounting of pool wall forms, mounting of a support system, and casting of the concrete pool wall. The method has the advantages that the problems of large pool wall height and large form side pressure are solved by the use of the solid side forms and a reinforcing support system; the pool wall forms are erected to the top once, and the appearance quality of the pool wall is easily guaranteed; pool concrete is cast once, structure integrity is good, and the potential water leakage problem of the pool wall caused by reservation of multiple horizontal construction joints; construction process is greatly quickened, construction period is shortened, labor cost and materials cost are saved, and engineering cost is lowered; the method is especially applicable to construction of concrete pool walls 9m in height and 300mm-1100mm in thickness.

The invention discloses a serial number generating method and device, and a server. The serial number generating method comprises: receiving a serial number allocating request; acquiring the node number of an application node receiving the serial number allocating request and the current system time of a server where the application node is located; generating a time sequence value associated with the serial number allocating request; and performing bit OR operation on the binary numbers of the node number, the current system time, and the time sequence value, and generating a single serial number in a long integer (LONG) data structure type. The method may enable any two application nodes in a distributed cluster to generate two different serial numbers in parallel and provide the serial number generating service in the distributed cluster with a better concurrent processing capability. Further, the data format of the generated serial number is the LONG type, thereby facilitating storage and retrieval.

The invention discloses a rainwater collecting and recycling system for an urban green land and a plaza; the rainwater collecting and recycling system comprises the green land, roads around the green land and the plaza; the green land is of a sunken structure which is lower than the roads and the plaza; the plaza is of a dome structure which is slightly lower at four sides; and the roads are of arched structures which are higher at the middle and slightly lower at two sides; rainwater on the roads and the plaza enters a water collecting well which is connected with a covered filtering channel; the water drain end of the covered filtering channel is connected with an underground impounding reservoir; a concrete cover plate layer is arranged at the upper part of the impounding reservoir; the green land is arranged at the upper part of the concrete cover plate layer; a water pump is arranged in the underground impounding reservoir; and the water outlet of the water pump is connected with a green land irrigation spray head. The rainwater collecting and recycling system for the urban green land and the plaza relieves the pressures on sewage disposal, municipal water supplying and shortage of urban water sources, realizes rainwater recovery and gives full play to the ideas of energy conservation, emission reduction and sustainable development.

The invention provides a forward coal mining technique by a filling method, comprising the following characteristics: simultaneously pushing the working surface and the gate road of coal mining, thereby tunneling, mining and filling old empty region. The invention can reduce 20-30% of tunneling rate and 10-15% of workers, the filling ratio of the goaf reaches over 95%. The problems that the maintenance is difficult to carry out because of great pressure of the surrounding rock along retaining, the goaf leaks air, the production is continuously tense, coal resource is wasted and the like are solved, and the non-disturbance of earth surface is effectively controlled.

The invention provides a monitoring device and a method for the power of a photovoltaic power station based on the edge calculation. The device comprises a photovoltaic module controller and a DTU concentrator, a cloud server, and a user terminal. The photovoltaic module controller is mounted in a photovoltaic component, and integrates: an MPPT photovoltaic component output control unit, an MCU processor unit, and a ZigBee communication unit. The DTU concentrator constitutes a collection node of the ZigBee communication unit, and forwards data such as photovoltaic power to a cloud server through a wireless communication network. The user terminal is configured to read data of the cloud server, and realize visual monitoring of power of each photovoltaic component in the photovoltaic power station. According to the monitoring device and the method for the power of a photovoltaic power station based on the edge calculation, the PV module controller has certain edge computing capabilitiesthrough hardware and software improvements basing on the existing PV module controller and MPPT tracker design. The computational efficiency and speed are improved, and efficient and real-time power tracking is achieved, thereby achieving unexpected benefits.

The invention discloses an android application vulnerability detection method and system based on function control flow. The method includes the steps that on the basis of an existing static analysis method, an existing dynamic analysis method and a dynamic-static combination method, a function control flow diagram is obtained through once code analysis operation; an accurate dynamic analysis testing case is made according to the function control flow diagram, and dynamic testing is automatically conducted. In this way, the defect of high loads, caused when running of data flow is simulated multiple times in an existing analysis method, of a system is overcome. According to the android application vulnerability detection method and system, the testing cast is generated through the function control flow diagram, a testing system framework suitable for the method is provided, the defect that an existing analysis technology is low in analysis speed is overcome accordingly, and testing efficiency is improved.

The invention discloses a message pushing method and device, and belongs to the field of network broadcast. The method comprises the following steps: determining newly-added user sides in a live broadcast room, wherein the live broadcast room at least comprises a host side and user sides, and the host side is used for providing a live program for the user sides; determining the host side; and sending a welcome message to a part of clients at least including the newly-added user sides and the host side in the live broadcast room, wherein the welcome message is used for welcoming the newly-added user sides. Through adoption of the message pushing method and device, the problem of possible crash of a server due to over-high stress in pushing of the welcome message to the host side and all the user sides in the live broadcast room when the new user sides enter the live broadcast room is solved, and the effects of lowering the stress in pushing of the welcome message on the server and ensuring stable running of the server are achieved.

The invention provides a linear LED driving circuit used a score divider for adjusting voltage. The circuit includes a power circuit composed of a rectifying unit, an LED module and a current controller, and a serial-parallel score divider connected to the LED module and a voltage dividing controller connected to the serial-parallel score divider. The serial-parallel score divider includes a voltage dividing capacitor connected to the LED module in series. When discharging, the voltage dividing capacitor is connected between at least one LED unit and a grounding terminal of the LED module. Since voltage across the voltage dividing capacitor is equal to that across two ends of the LED unit, voltage value of the voltage dividing capacitor can be decided by controlling quantity of the LED units connected to the current controller in series. Input voltage can be reduced to an arbitrary score voltage dividing value suitable for LED quantity, so that the circuit can be suitable for different voltages.

The invention provides a control and service separated WLAN framework and a configuration method thereof. The framework comprises a plurality of access points (AP), a plurality of access controllers (AC) and at least one service controller (SC) which is produced by the plurality of ACs after election campaign or assigned configuration; a data forwarding tunnel is established between the APs and the ACs, and a management tunnel is established between the ACs and the SC, and a management tunnel is established between the APs and the SC; and ACs are used for forwarding the data and the SCs are used for managing services.

The invention discloses an optimization control system of a metallurgical gas boiler, and relates to the technical field of control of metallurgical gas boilers. The system comprises a steam pocket liquid level control loop, a main steam temperature control loop, a hearth pressure control loop, an air supply control loop, an air-fuel ratio optimization controller and a load control loop. According to the system, automatic control over the gas boiler is achieved, all technical indexes meet the running index of the gas boiler, and through air-fuel ratio optimization, gas can be sufficiently combusted, smoke exhaust looses caused by the too large air quantity are avoided, and therefore energy-saving and consumption-reduction aims of the boiler are achieved; the problems that the steam pocket water level, the hearth pressure and the gas pressure are unstable, a false liquid level exists, the air amount and the gas amount are hard to automatically control, and the main steam temperature is hard to precisely control are solved; and in-advance pre-adjustment and in-advance action are achieved, self-optimization of the air-fuel ratio is achieved, combustion is more stable, and the aims of saving energy and reducing emissions are achieved.

The invention discloses a cross-layer cooperative detection method of a DDoS attack based on an SDN for improving the detection efficiency of the DDoS attack. The technical scheme is as follows: constructing cross-layer collaborative detection architecture based on the SDN composed of a data layer and a control layer, wherein a data path, a switch proxy, a DDoS attack sensing module and a featureextraction module are arranged on an SDN switch of the data layer; and a controller proxy, an event manager, a DDoS attack classification module and a botnet tracing module are arranged on an SND controller of the control layer. The data layer performs coarse granularity detection on the data traffic to obtain DDoS attack abnormal traffic data, and the control layer performs fine-grained detectionon the abnormal traffic data of the DDoS attack. According to the cross-layer cooperative detection method disclosed by the invention, by means of the cooperation of the data layer and the control layer, the problems of large southbound interface pressure of the SDN and overlarge pressure of the SND controller are solved, the type of DDoS attack can be detected, and a switch set close to a botnetcan also be detected, so that the speed and accuracy of detecting the DDoS attack are improved.

The invention discloses a dynamic information fusing and presenting method based on HTML5 (hypertext markup language 5) high-definition bitmaps. The method employs smooth movement of the high-definition bitmaps, displaying of multiple point positions on the bitmaps, locating of the point positions, real-time displaying of point position information, presentation of an online map by the bitmaps, providing of user interaction events and displaying of information on the bit maps, and solution of online real-time data performance problem by the WebSocket communication protocol. The method includes the steps such as creating a WebSocket service, creating a HTML5 page and server connection, loading a base map, loading hot spots, loading point positions and updating point position information. The method has the advantages that the online map can be presented at low cost, real-time data of corresponding point positions can be presented on the map, online drawing of point positions and hot spots is achieved, and the fact that the server pushes the real-time data to a front end for presentation is also achieved.

The invention relates to an oil-filled temperature and pressure combined sensor, belonging to the technical field of temperature and pressure combined sensors. The oil-filled temperature and pressure combined sensor solves the problem that signals in a local area cannot be measured at the same time when a temperature and pressure combined sensor which is formed by two kinds of sensors in an assembling way. The oil-filled temperature and pressure combined sensor consists of a pipe seat, a pressure chip, a temperature chip, a gold wire lead, a silver-palladium wire, an external leading-out wireharness, a ceramic ring, a blocking plug, a corrugated diaphragm and a pressing ring. The pressure chip and the temperature chip are assembled in the pipe seat in a short distance and are welded on the pipe seat in a eutectic brazing way. When the oil-filled temperature and pressure combined sensor is used, after oil is filled in vacuum, the pressure chip and the temperature are protected at the same time and then pressure is sensed by the corrugated diaphragm. The oil-filled temperature and pressure combined sensor is suitable for the simultaneous measurement of the temperature and the pressure in the local area.

The invention relates to a pressure controllable abrasive belt tool system for grinding and polishing blades, and belongs to the tools for grinding and polishing blades. A driving wheel, an idle wheel, a tensioning mechanism and a grinding and polishing pressure control mechanism are mounted on a tool board, a servo motor is connected with the tool board through a motor stand, the driving wheel is connected with the servo motor, a contact wheel is provided with a structure with rubber materials pasted on the surface of a metal hub body, an abrasive belt is in wrapping connection with the outside of the driving wheel, the idle wheel and the contact wheel, and the tensioning mechanism is connected with the abrasive belt in a tensioning manner. The pressure controllable abrasive belt tool system has the advantages that the structure is novel, the problem of coupling of grinding and polishing pressure and normal indentation amount in the grinding and polishing process is solved, force decoupling in the grinding and polishing process is realized, the tool system for force decoupling is provided for automatic grinding and polishing operation of blade profiles, grinding and polishing pressure can be effectively controlled when the blades are grinded and polished by the abrasive belt, curved surfaces of the blades are more uniformly grinded and polished, and machining quality is higher.

The invention discloses a distributed gateway system in a 4-6-4 hybrid protocol network and an access method. The method comprises the steps that one or more distributed CLAT (Customer Side Translator) gateways receive a first access request to an IPv4 (Internet Protocol Version 4) server located on a network address translation PLAT (provider side translator) gateway side initiated by an IPv4 client; a first IP (Internet Protocol) address of IPv4 in the first access request is converted to a second IP address of IPv6 (Internet Protocol Version 6) according to an address conversion rule in the CLAT gateways; and a second access request to the PLAT gateway is initiated based on the second IP address of the IPv6; the second access request also carries a third IP address of the IPv4 and a third port; and the third IP address and the third port conduct pre-mapping formation on the first IP address of the IPv4 and a first port corresponding to the first IP address according to a preset address mapping rule via the CLAT gateways. The problems of gateway server pressure and network delay caused during an application-level gateway processing course are solved.

The invention discloses a communication system and method of a converged network. The communication system of the converged network comprises a converged terminal, and the converged terminal comprises a central processor and a mobile communication interface, a wireless communication interface and a wired communication interface which are connected with the central processor, wherein the mobile communication interface is used for carrying out communication service by a mobile honeycomb access method; the wireless communication interface is used for carrying out communication service by a short-distance micropower wireless access method through utilizing fixed network resources; the wired communication interface is used for carrying out communication service by a USB (universal serial bus) wired access method through utilizing the fixed network resources; the central processor is used for controlling the mobile communication interface, the wireless communication interface and the wired communication interface, and selecting an access method from the mobile honeycomb access method, the short-distance micropower wireless access method and the USB wired access method for carrying out communication service.

An object of the present invention is to provide a method for manufacturing electrodes that can effectively suppress edge-curl when metal electrodes such as bus electrodes and data electrodes are patterned mainly by a photolithography method.

In order to achieve the above object, in the manufacturing method in the present invention, an amount of undercut generated by difference in a degree of dissolution caused by developing solution is controlled, and baking is performed at a temperature such that glass in a protrusion formed at side edges becomes soft so as to touch a substrate by gravity. With such method for manufacturing, it becomes possible to make the side edges rounded whose curvature changes continuously.

The invention discloses a self-service express item fetching trolley and a self-service express item fetching control method thereof. The self-service express item fetching trolley comprises a trolleybody, a connecting arm and a manipulator, wherein the manipulator is connected to the connecting arm, and the manipulator is provided with a horizontal stretchable mechanism; the connecting arm is connected to the trolley body through a rotating turret, and the connecting arm is connected with a vertical lifting device; a magnetic guide rail is arranged in front of a goods shelf, a magnetic stripe recognizer is arranged at the bottom of the trolley body, and the trolley body moves along the magnetic guide rail through the magnetic stripe recognizer; and a main control module is arranged in the trolley body, and the main control module is connected with the manipulator, the connecting arm and the trolley body. According to the self-service express item fetching trolley and the self-serviceexpress item fetching control method thereof, automatic fetching and automatic placing of goods are realized by means of cooperation of the self-service express item fetching trolley with the self-service express item fetching control method, so that personnel configuration and distribution cost pressure of Cainiao Yizhan is relieved, and a wide application space is realized.

The invention discloses the automatic testing method of variable hydraulic pump pressure flux characteristic. A proportion throttle valve is arranged in the outlet pipe of a hydraulic pump to be tested for replacing a manual throttle valve; in the testing process, a testing and controlling computer emits instructions to the proportion throttle valve; the opening of the proportion throttle valve is gradually reduced or increased, thus leading the pressure and flux of the outlet of the pump to be changed correspondingly when the testing and controlling computer records the testing data of the pressure and flux at the outlet of the pump; after that, the curve fit is carried out according to the testing data, so as to determine two most important parameters in the hydraulic pump pressure flux characteristic test: zero flux pressure and rate flux. No people are required to take part in the whole testing process, and the testing operation and date proposal are fully and automatically implemented by the testing and monitoring computer. The invention does beneficial try on the aspect of variable hydraulic pump pressure flux characteristic automatic testing technology, which improves the variable hydraulic pump pressure flux characteristic automatic testing level.