474results about How to "Reduce the impact of stability" patented technology

The invention discloses methods and corresponding systems for acquiring and configuring network parameters by utilizing a base station, and the methods and the systems are applied to the electrifying process of the base station. The method for acquiring the network parameters comprises: the base station broadcasts and transmits a dynamic host configuration protocol (DHCP) discovery message; when a DHCP server receives the message, the DHCP server replies a DHCP providing massage to the base station, wherein an IP (Internet Protocol) address and other relevant configuration information which are allocated for the base state are carried in the DHCP providing message; and when the base station receives the DHCP providing message, the base station acquires the IP address and other relevant configuration information which are carried in the massage. The method for configuring the network parameters comprises: the base station broadcasts and transmits a DHCP request massage after acquiring the network parameters according to the method for acquiring the network parameters, wherein the DHCP request massage at least carries identification information of the DHCP server which distributes the IP address and other relevant configuration information for the DHCP request massage; and after the base station receives a DHCP response message replied by the DHCP server, the base station configures the acquired IP address and other relevant configuration information to the base station which is not configured with network parameters yet.

The invention relates to the technical field of coal mine mining, in particular to a non-coal-pillar auto-roadway-forming mining method suitable for thick-seam fully mechanized top coal caving. The method includes the following steps that reinforcing and supporting are carried out on a roof and two walls of a roadway; roof cutting explosion is carried out to form a pre-cracking seam; a temporary supporting device in the roadway and a gangue blocking device are erected along a retained entry; coal caving is not performed within a preset distance to the working face end close to the entry retaining side; after the roadway is stabilized, the temporary supporting device in the roadway is removed, a goaf is closed, and the entry retaining is completed. The roof cutting explosion better facilitates collapsing of the rock stratum in the goaf, the stoping space can be well filled after the rock stratum in the seam is collapsed, a short arm beam structure is formed in the lateral direction of the entry-retaining roof, a long suspended roof formed in the goaf is avoided, and the surrounding rock stress of the gob-side entry is improved; coal caving is not performed within a certain range ofthe working face end of the entry retaining side, the filling effect of the empty area of the entry retaining side is further guaranteed, rotary sinking of basic top block bodies is effectively limited, and the influence on the entry retaining stability is greatly reduced.

The invention provides a low-concentration vesicular phospholipid gel formulation of a small-molecule peptide drug and also provides a preparation method of the vesicular phospholipid gel formulation of the small-molecule peptide drug. In the low-concentration vesicular gel formulation, the content of phospholipids ranges from 20% to 40%, and the small-molecule peptide drug with a molecular weight ranging from about 300 D to about 3300 D is encapsulated in the phospholipids. The low-concentration vesicular phospholipid gel formulation is available in various drug administration forms suitable for injection drug administration, external drug administration and the like, has good biocompatibility, high drug-carrying capacity and good stability, and particularly has a long-acting slow release effect.

A turbine sequence valve load abrupt fault diagnosis method based on a high control valve switch test is disclosed. The invention relates to a diagnosis method of a turbine load abrupt fault in a thermal power unit sequence valve operation mode and aims to solve the problem of unit load sudden decrease caused by software and hardware faults of an existing method. The method comprises the steps of (1) switching an operation mode to a single valve from a sequence valve, (2) through an instruction of manually reducing the main steam pressure of a unit and increasing the comprehensive valve of the unit, determining whether a fault reason is related to software or hardware, (3) through checking whether a load sudden change phenomenon appears or not in a test process and observing the valve rod motion of a unit high control valve, diagnosing the fault further, and determining whether system jam and valve off faults exist, (4) according to the Friuli Greig formula, carrying out the flow characteristic calculation of a high control valve by using test data, extracting fault characteristics and determining whether the high control valve has a connection looseness fault. The turbine sequence valve load abrupt fault diagnosis method is applied to the field of turbine fault diagnosis.

An organic light-emitting diode display module disclosed by the present invention comprises an organic light-emitting diode display panel used for emitting light rays to the fingerprints when the fingerprints are identified; a fingerprint sensor arranged at one side of the display panel far away from a light emergent side and used for receiving the light rays reflected by the fingerprints and determining the graphs of the fingerprints according to the light rays reflected by the fingerprints. According to the technical scheme disclosed by the present invention, by setting the fingerprint sensor at one side of the display panel far away from a light emergent direction, the influence on the stability of a display device in which the display panel is located can be reduced, the proportion of a non-display area in the display device in which the display panel is located is conducive to being reduced, and the proportion of a display area is conducive to being improved.

The invention discloses a benzene and homolog thereof-free waterborne polyurethane laser transfer coating and a preparation method thereof. The benzene and homolog thereof-free waterborne polyurethane laser transfer coating is prepared from the following raw materials in part by mass: 20 to 60 parts of waterborne polyurethane, 30 to 70 parts of deionized water, 0.005 to 0.01 part of defoamer, 5 to 15 parts of cosolvent, 0.2 to 0.5 part of pH regulator, 0.5 to 1.0 part of wetting agent, and 0.5 to 1.5 parts of flatting agent. The laser transfer coating consists of waterborne polyurethane resin, so that the stability of a product is greatly improved; and according to the waterborne polyurethane coating, the homolog of benzene is not generated in the process of film forming, so that the national volatile organic compound (VOC) test standard is met, and the stripping of the product with polyester (PET), the mould pressing temperature resistance, and the transferring performance all meet the standard of the laser transfer material.

The invention discloses an interconnection detection cloud platform facing electric vehicle charging facilities. The platform is used for a charging facility network access detection, engineering acceptance detection, a business expansion operation detection, a transportation and maintenance detection, compatibility and consistency tests of charging facilities and an electric vehicle and the like;the cloud platform is composed of a detection management center, a knowledge expert database, a data analysis center and a service data interface, and are used for providing support of a detection standard, equipment state analysis, fault analysis and the like for on-site detection personnel, and providing technical support for an industry management equipment platform account, an electric vehicle characteristic library, a charging equipment detection library, a charging equipment fault library, a detection method and the detection standard, and providing professional charging facility detection statistic analysis reports for the national power grid, the government, charging operators and suppliers, and providing a device fault detection report and a diagnosis report interface for the charging operators.

The invention relates to a DC power grid line fault protection method. The method comprises steps: travelling wave signals at each measurement point are monitored in real time, if a protected set threshold is reached, a corresponding DC circuit breaker is tripped, all circuit breakers are finally tripped to realize separation of three DC subsystems, and the control mode of each subsystem converter station is switched. According to the travelling waves acquired at the measurement point, whether the fault is subsystem internal fault or subsystem external fault is judged by each subsystem through a fault positioning logic. If the subsystem external fault is judged according to the fault positioning logic, the line of the fault is determined according to the fault positioning logic, or otherwise, the subsystem internal fault is judged. According to an instruction of a dispatching system, the control mode of each converter station and a power control instruction are changed. The technical scheme of the invention can effectively shorten time needed for fault positioning, and power transfer brought by large-range DC power grid locking and influences on the stability of an AC and DC system can be reduced as much as possible. The phenomenon that the disclosed method is not applicable along with complexity of the DC power grid structure does not happen.

The invention relates to a measure for enhancing electric transmission line tower footing frozen soil foundation stability. The measure is characterized in that gravity type heat pipes are buried on the periphery of a tower footing foundation of an electric transmission line, heat preservation materials are distributed on a horizontal layer on the periphery of a pile end and a pile body at the top of the tower footing foundation, and soil layers densely higher than an earth surface strap gradient are built above the earth surface and surrounding tower legs of the tower footing foundation, wherein strap gradient waterproof films are paved in the soil layers. The gravity type heat pipes and the heat preservation materials are effectively combined so that the practical use quantity of the gravity type heat pipes can be greatly reduced, project investment can be greatly reduced in terms of the project, construction difficulty is reduced, and construction period of project measures is shortened. In addition, in terms of overall efficacy, compared with a hot rod single measure, the measure for enhancing electric transmission line tower footing frozen soil foundation stability manyfold improves and radically changes the overall cooling efficiency of the electric transmission line tower footing frozen soil foundation and maintain long-period stability of the tower footing foundation.

The invention discloses an intelligent unmanned mobile automatic-cooking robot, a sharing system and a business mode. The unmanned mobile automatic-cooking robot at least comprises a chassis, a car body, a communication module and a central controller, further comprises a battery power management module, and is provided with a voice interaction module and a safety monitoring module; a kitchen robot capable of automatic cooking is arranged in the car body; the central controller controls the kitchen robot capable of automatic cooking to cook automatically according to a system menu; the chassisis provided with an unmanned vehicle system for automatic driving, which can plan a route, drive and avoid obstacles automatically according to instructions under control of the central controller; the communication module is used for wireless control on the intelligent unmanned mobile automatic-cooking robot. With combination of the internet+ technology and the unmanned automatic driving technology, cooking devices and related functional modules are put into the sharing economy business-like trend, resource integration is facilitated and utilized effectively, and integration range and quality of the kitchen robot are both increased.

The invention belongs to the technical field of tailing pond monitoring, and discloses an information-based intelligent control system and control method for safety monitoring of tailing ponds. The information-based intelligent control system for safety monitoring of tailing ponds includes a video acquisition module, a vibration monitoring module, a pressure monitoring module, a water level monitoring module, a main control module, a dam body model building module, a risk assessment module, an alarm module, a data storage module and a display module. The shape and distribution characteristicsof the saturation line in model test can be controlled through the dam body model building module, so that the similarity between an experimental dam body model and an actual dam body can be improved,and the accuracy of the experiment can be improved. Meanwhile, through the risk assessment module, the safety status of a tailing pond can be evaluated based on historical data, and moreover, spatialinformation can be increased to further refine the tailing pond evaluation system, and real-time warning and risk investigation can be carried out for tailing ponds to contain disasters in the bud.

The invention discloses a method and a device for inhibiting port oscillation. The method comprises the following steps of: regularly obtaining the current oscillation state of a port and mapping to form a punishment value; judging whether the punishment value is greater than the inhibiting threshold or not, if so, setting the port to be in a failure state and reporting to an upper-layer protocol module that the port is in the failure state. The technical scheme can effectively inhibit the oscillation frequency of the port and reduce influence on the stability of a communication device and the whole network by port oscillation.

The invention provides a circular pipe type inner suspended holding pole, and belongs to a holding pole used for group erecting of a transmission tower. The holding pole is formed by connecting a suspended base, a lower segment, a straight line segment, an upper segment and a knuckle arm component in sequence by bolts, wherein the straight line segment is formed by connecting a plurality of standard segments in sequence by bolts; and the straight line segment, the upper segment and the lower segment are formed by welding circular pipes. The holding pole has the advantages of light weight, good mechanical property and convenient assembly and disassembly.

The invention discloses a wheel and leg mechanism for a wheel and leg compound type robot.The wheel and leg mechanism comprises two power machines, thighs, shanks, toes, rotary discs, ropes, hinge devices and a pair of left-handed torsional spring and right-handed torsional spring.Through the cooperative control of the two power machines, the wheel mode and the leg mode of the robot can be switched, and the robot can correspondingly move in the two modes.According to the wheel and leg mechanism, the power machines are both installed on a machine body, and therefore legs are low in weight, and the influences of the rotating inertia of the moving legs on the stability of the robot are effectively reduced when the robot moves in the leg mode.According to the wheel and leg mechanism, the pair of torsional springs are added to knee joints of the legs, and the vibration caused when the robot moves in the leg mode and the toes hit the ground is effectively relieved.

The invention discloses an ultra-low frequency modal test suspension system, comprising a modal test suspension device and a monitoring computer for realizing remote detection and monitoring. The monitoring computer is connected with an Ethernet router; an air tank and a pneumatic actuator are connected with an air pressure control MPU (Microprocessor Unit); a suspension follower is connected with a linear displacement coder, a suspension force sensor and an electromagnetic force sensor; an electromagnetic actuator is connected with a power amplifier; the linear displacement coder is connected with a CPLD (Complex Programable Logic Device) processing module which is connected with an electromagnetic force control MPU; the suspension force sensor and the electromagnetic force sensor are connected with the electromagnetic force control MPU; the air pressure control MPU and the electromagnetic force control MPU are both connected with a modal suspension control MPU; and the modal suspension control MPU is connected with the Ethernet controller which is connected with the Ethernet. The invention realizes fully digital control, improves the work efficiency, improves the control precision and reduces the influence of the accessories on the modal test.

The invention relates to a PSO-based optical storage, charging and conversion integrated charging station collaborative optimization scheduling method and device. The method comprises the following steps of obtaining measurement point information of each photovoltaic power generation module, each energy storage module and each electric vehicle charging and conversion module in an optical storage,charging and conversion integrated charging station; establishing a co-scheduling strategy model according to the obtained information, wherein the co-scheduling strategy model comprises an objectivefunction and constraint conditions for realizing the minimum operation cost of the light storage, charging and conversion integrated charging station; solving the collaborative scheduling strategy model through a particle swarm algorithm; and making a power grid power input and energy storage output plan of the optical storage, charging and conversion integrated charging station according to the obtained optimal solution. Compared with the prior art, the output of each module is cooperatively optimized and dispatched according to the cooperative control characteristic of each module in the charging station during operation, so that the influence of the integrated charging station on the stability of a power grid system is effectively reduced, and meanwhile, the safe and stable operation ofthe integrated charging station is also ensured.

The invention provides a sponge urban road structure which avoids the deposition of pavement rainwater, comprising a roadway drainage asphalt pavement, a greening planting tray and an external drainage pipe. Two symmetrical middle protective plates are fixed through concrete mosaic at the inner end side of the roadway drainage asphalt pavement, and a concrete channel is arranged between the two middle protective plates. The invention comprehensively realizes a sponge city road structure avoiding pavement rainwater deposition through the mutual cooperation of the various structures, Construction of sidewalks, A 6CM thick permeable brick pavement pave through that sidewalk, 3CM medium sand level layer are sequentially laid under that water-permeable brick pavement of the sidewalk, 10CM permeable cement concrete base course and 10CM subgrade mixed with crushed stone, so that the sidewalk can reach more than 70% of the water permeability, and can create a low-carbon environmental protection of the natural living environment, maintain the ecological balance of the city, maintain good water permeability of the ground, moisture retention.

The invention discloses an early-detaching combined template system, comprising a plurality of support pillars and a template assembly. An early-detaching mechanism is arranged on each support pillar, and a top plate and a bracket of the early-detaching mechanism are both in right angle quadrilateral shapes. The brackets of a plurality of early-detaching mechanisms support the template assembly, and the top plates of the plurality of early-detaching mechanisms and the template assembly form a lower support mould of a pouring body. The template assembly comprises a plurality of rectangular beam components and plurality of rectangular template components, wherein the beam components are supported on the brackets, and cross convex-concave lap joint and matching structures are formed between the beam components and the brackets. The plurality of beam components form at least one right angle quadrilateral frame through the brackets, and the template components are positioned in the right angle quadrilateral frame formed by the beam components. A convex-concave matching and lap joint structure is formed between the end part of each template component and the side part of each beam component. The early-detaching combined template system has the beneficial effects that for building and detaching the templates, labor intensity is low, the efficiency is high, the supporting stability is good, use is safe, and force for transition and transport is saved.

The invention discloses a construction method of a lake water purification system. The method includes the steps of: (a) site surveying; (b) site construction; (c) precipitation zone configuration; (d) aeration zone configuration; (e) compounding zone configuration; (f) ecological planting zone configuration; (g) floating island unit establishing; and (h) regional beautification. The method provided by the invention has the advantages of simple construction, short construction period and cost saving, and after construction, the purification system has the functions of water storage, flood control, and water and air purification, can protect biodiversity, adjust microclimate and improve environmental quality, thus laying the foundation for water quality improvement of regional lake water.

The invention provides a scheduling method preventing centralized arrival of buses on the basis of a GPS technology, and relates to the field of urban road traffic control. The method aims to solve the problems that in the prior art, arrival punctuality of the buses is poor and arrival time of the buses is not balanced. According to the method, retrieval is performed on the first bus nearest to a route starting point, i is equal to 1, the number, coordinates and running speeds of buses running on a route at the same time are obtained according to a GPS, a ratio interval is judged by calculating running distance, ideal distance and predicted distance between two buses and the ratio of the predicted distance of the two buses to the ideal distance between the two buses, i is equal to i plus 2, i is smaller than N, all the buses are scheduled repeatedly, the average speed of all the buses is calculated, whether operation of the buses is finished or not is judged, data of the running buses are obtained again if operation is not finished, and scheduling is achieved. The method can be used for vehicle scheduling.

The invention discloses a wind-power-contained isolated grid running outgoing line reclosing method adapting to formation of three-phase tripping operation. When a wind-power-contained isolated grid running outgoing line with loads breaks down, protection quick-breaking action three-phase tripping is achieved; the transmission power, namely the surplus power delta P1 of the outgoing line before the line breaks down is detected; the values of the surplus power delta P1 and the wind power field injection power Pf are judged; the final surplus power delta P2 of the outgoing line is determined, the delta Pmax is calculated through an equal area method, the delta P2 and the delta Pmax are compared, the maximum tripping frequency and the maximum tripping time are calculated, the allowed tripping time and frequency of the isolated grid outgoing line are enlarged, the time of normal running state recovering of the wind-power-contained isolated grid with the loads is shortened, and the problems that due to existence of the surplus power, the frequency and voltage of the wind-power-contained isolated grid with the loads formed after the outgoing line has a short-circuit fault and three-phase tripping of a breaker happens are out of limit rapidly, the small system side can not meet the synchronism check requirement, and reclosing fails are solved.