207results about How to "Guaranteed to continue" patented technology

The invention discloses a wave beam alignment method, device and system for a millimeter wave communication system. The wave beam alignment device is provided with a high-gain narrow-wave-beam directional antenna and a low-gain wide-wave-beam directional antenna, and comprises a link establishment module and a wave beam alignment module, wherein the link establishment module for establishing a control signaling link with an opposite terminal through the low-gain wide-wave-beam directional antenna, and the wave beam alignment module is used for interacting channel quality information in the different narrow-wave-beam directions with the opposite terminal through the control signaling link and performing wave beam alignment of the high-gain narrow-wave-beam directional antenna with the opposite terminal. If the device serves as a transmitting device, the opposite terminal serves as a receiving device; or if the device serves as the receiving device, the opposite terminal serves as the transmitting device. The system comprises the transmitting device and the receiving device. The wave beam alignment method, device and system can ensure continuity of a link between the transmitting device and the receiving device during wave beam direction scanning, meanwhile the total scanning times is decreased from N2 to 2N, and the time for establishing data transmission connection is greatly shortened.

The invention discloses a data migration method applied in a storage system and storage devices. The system and the devices are used for solving the existing technical problem that a service needs to be interrupted in data migration. When the data in a first logical volume are needed to be migrated to a second storage device, the second storage device can create a second logical volume and can store the data of the first logical volume in the second logical volume; in a data migration process, the second storage device can receive an access request originally sent to the first logical volume in the first storage device by a host; the second storage device can execute the access request; therefore, the original service is unnecessarily interrupted in the data migration process; and the service continuity is realized.

The invention provides a low-temperature SCR (Selective Catalytic Reduction) catalyst based on an active coke loaded active component and a preparation method of the low-temperature SCR catalyst. The catalyst is suitable for SCR reaction of nitrogen oxides under the condition of low temperature. A Mn and Ce composite oxide is loaded on an active coke particle with a relatively high special surface area and mechanical strength, so that the SCR reaction temperature is reduced, the adsorption capability and mechanical wear resistance of the catalyst are improved, and the whole sulfate resistance and regeneration capability of the catalyst are improved. The preparation method provided by the invention is simple in step, artful in process design and convenient for industrial production. The catalyst provided by the invention takes the active coke particle as a carrier on which the Mn and Ce composite oxide is loaded. Oxides of modified elements can also be loaded on the carrier of the catalyst, wherein the modified elements are selected from one or more of the following elements: Fe, Zr, Si, Ti, V, Mo, W, Cr, Au, Ag, Pt, Pd, Rh and Co.

The invention relates to a soilless seedling culturing substrate for resisting diseases and root nematode of plants and a production method thereof. In the invention, organic wastes such as straws are taken as raw materials, inoculated with zymogen according to certain proportion, subjected to moisture content regulation, evenly mixed and stacked for primary fermentation; when the temperature of a pile reaches 60 DEG C, the pile is turned; the pile is turned and oxygen and moisture content are supplemented every seven to ten days afterwards; after the pile is turned for three times, when the temperature is lower than 35 DEG C, the pile is inoculated with a bio-antagonist for secondary fermentation, turned every three to four days and kept at a temperature of between 35 and 40 DEG C; and after 15 to 20 days, the seedling culturing substrate containing the 10 bio-antagonist is obtained. The seedling culturing substrate has chemiotaxis for interfering pathogenicbacteria and nematode, can reduce infestation chance of the pathogenicbacteria and nematode on the root surface, and has double effects of resisting phytophthora disease and root nematode disease through the secondary fermentation and microorganism activation technology.

The invention discloses a high-speed printing head of a 3D (three-dimensional) printer. The printing head comprises a rack, wherein a hydraulic cylinder is fixed above the rack; a piston of the hydraulic cylinder is fixed with a feeding device capable of sliding up and down along the rack; an outlet of the feeding device is communicated with a nozzle structure through a volumetric metering pump; a feeding pipe is longitudinally arranged on the rack; the feeding device comprises a drive device and a screw rod driven by the drive device to rotate; the feeding pipe encircles the screw rod; a feeding hole is formed above the feeding pipe; a feeding hot-melting cavity is formed below the feeding pipe; the end of the screw rod is sleeved with a one-way valve; the nozzle structure comprises a nozzle pipe communicated with the volumetric metering pump; a multi-nozzle head is rotationally arranged at an outlet end of the nozzle pipe and provided with at least two nozzles with different pore diameters; when an opening, rotated to any nozzle, of the multi-nozzle head points to a workpiece, only the nozzle is communicated with the nozzle pipe; the multi-nozzle head is driven by a rotary power device to rotate. The printing head has the advantages that the printing speed can be increased while a high-precision printing effect is guaranteed.

The invention discloses a base station switching method and a system in wireless communication. The base station switching method comprises the following steps: step 1, a satellite positioning system is used for measuring periodic broadcast message of a satellite, and meanwhile, an inertia measurement system arranged on a mobile station is used for measuring operating states of the mobile station; step 2, data of the measuring results of the satellite positioning system and the inertia measurement system are fused, the accurate position and speed information of the mobile station can be obtained, the distance and the path from the mobile station to a base station can be calculated, and time moving to an appointed switching point under the current speed can be calculated; and step 3, when the mobile station moves to the appointed switching point, handover is carried out. The base station switching method solves the problem that instability and time-lag in the process of switching according to signal strength in switching technology cause problems, solves the problem of switching failure and communication outage when the satellite has operation faults in the satellite positioning auxiliary switching technology, and guarantees stable and continuous proceeding of communication of the mobile station.

The invention provides a high-activity nano-grade flue gas denitrification catalyst for removing nitric oxides in fuel gas under a low temperature condition, and a low-temperature liquid-phase preparation method of the high-activity nano-grade flue gas denitrification catalyst. The method does not relate to high-temperature roasting; and the prepared catalyst exists in a manner of a lot of amorphous state mixed oxides, and the activity is obviously improved. The high-activity nano-grade flue gas denitrification catalyst can be widely applied to selective catalytic reduction reaction of the fuel gas under an SO2-free or low-concentration SO2 environment of the fuel gas, so as to reduce the nitric oxides in the fuel gas into N2 and H2O. The catalyst takes a Ti oxide as a main component and is at least loaded with Mn-Ce-M-Ti-Ox of compound oxides of active components Mn and Ce, wherein M represents one or more elements of Fe, Co, Cu, Cr, Zr, Al and V; and the mol ratio of the elements is as follows: Ti: Mn: Ce: M is equal to 1: (0.005-1): (0.005-1): (0-0.3).

The invention provides a network switching method and a network switching system. The method includes the steps that an internet of things device builds an emergency call channel with an emergency call center through a second network when a state of a first network covering the internet of things device is detected to be unavailable; the emergency call center sends an identity label of the internet of things device to an internet of things management platform; the internet of things management platform selects a target network for the internet of things device according to the identity label of the internet of things device, and activates the target network; the emergency call center sends a network switching indicating message to the internet of things device through the emergency call channel; and the internet of things device switches a network to the target network according to the network switching indicating message. According to the network switching method and the network switching system, the internet of things device communicates with the internet of things management platform through the emergency call center when a current operator network breaks down, the current operator network is switched into other available networks through the internet of things device, therefore service borne by the internet of things device can be developed continuously, and service processing capacity of the internet of things device is improved.

The invention discloses an environment-friendly smashing device with a quantitative discharging function. The environment-friendly smashing device comprises a device body. A silencing layer is arranged on the outer wall of the device body. A feed hopper is arranged on the upper side of the device body. A first rotary shaft is arranged on the upper side of the inside of the device body. A first squeeze roller is arranged on the outer wall of the first rotary shaft. A second rotary shaft is arranged below the first rotary shaft. A second squeeze roller is arranged on the outer wall of the second rotary shaft and arranged parallel to the first squeeze roller. Smashing teeth are arranged on the outer walls of the first squeeze roller and the second squeeze roller. According to the environment-friendly smashing device with the quantitative discharging function, the smashing teeth on the two squeeze rollers arranged vertically are engaged to smash materials, and the smashing effect is good; the two squeeze rollers are driven by one motor, so that the energy consumption is lowered; water mist can be sprayed into the device body through an atomizing device, the water mist fully covers the materials, the materials are humidified while dust is reduced, and the quality of the materials is guaranteed; and in addition, automatic discharging can be achieved, the discharging quantity in the discharging process can be controlled, and quantitative discharging is achieved.

The invention relates to a slope expansion and blasting method for mining a deep concave open-pit mine by stages. The method comprises the following steps: sequentially performing hole distribution design of deep holes, perforation construction, setting of primer detonators in the deep holes and the construction of charging explosive in the deep holes, performing time delay detonation design of the detonators in a surface network, connecting the detonators in blast holes with the detonators in the surface network, and detonating, and the method is characterized in that, under the condition that the width of the slope expansion part is greater than 20 meters, the hole distribution design of the deep holes is used for designing the blast holes in a control row of a blasting area to be vertical to a bench crest of a main stope, the time delay detonation design of the detonators in the surface network is used for designing the detonation sequence to hole-by-hole differential detonation, and the time delay detonation design of the detonators in the surface network is used for designing delay time of the detonators to enable the inter-hole detonator time delay to be shorter than the inter-row detonator time delay. Under the condition that the width of the slope expansion part is smaller than 20 meters, the hole distribution design of the deep holes is used for designing the blast holes in the control row of the blasting area to be parallel to the bench crest of the main stope, and the time delay design of the detonator is used for designing the delay time of the detonators to enable the inter-hole detonator time delay to be longer than the inter-row detonator time delay. The method is strong in operability, safe, practical and reliable.

The invention relates to a nano water ion generating device, which comprises a semiconductor crystal grain pair consisting of a P-type semiconductor and an N-type semiconductor. One end of the semiconductor crystal grain pair is a refrigerating end, and the other end of the semiconductor crystal grain pair is a radiating end. The nano water ion generating device also comprises a water condensationdisc, a discharge electrode and a constant voltage electrode; the water condensation disc is electrically connected with the refrigerating end of the semiconductor crystal grain pair; one end of thedischarge electrode is a water absorption end, the water absorption end is close to the water condensation disc, and the other end of the discharge electrode is a discharge end; and the constant voltage electrode is arranged on the side part of the discharge electrode. The nano water ion generating device can be applied to the fields of air purification, sterilization, cosmetology and hairdressing, moisture preservation, fresh keeping and the like.

The invention discloses an agricultural environment data collection system and method based on Beidou short messages. In the system, a transmitting end comprises: an environment sensor which is used for collecting a plurality of types of agricultural environment data; a control terminal which is used for processing and locally storing the agricultural environment data; and a Beidou short message all-in-one machine which encodes the Beidou short message into short message data for transmission according to a reliable communication protocol of the Beidou short message of the sending end. The receiving end comprises: a Beidou short message all-in-one machine which is used for receiving short message data according to a reliability communication protocol of a Beidou short message of the receiving end; a data processor which is used for performing anti-coding extraction on the received Beidou short message data to obtain agricultural environment data; and a cloud database which is used forcarrying out cloud storage on the agricultural environment data. The Beidou short message system is used as a data transmission path, is not limited by the environment, and can be deployed to any agricultural planting area with complex and remote environment in China.

The invention discloses an evacuated solar energy steam heat collecting pipe, a steam heat collecting board and a steam hot water air conditioner which are composed of the evacuated solar energy steam heat collecting pipe. An open end of the evacuated solar energy steam heat collecting pipe provided with a double-layer jacket is provided with a sealing end cover, and on the sealing end cover a steam discharging port and an liquid intake pipe are provided; an inner cavity of an inner tube is provided with a core tube; a stenochasmus medium liquid membrane layer is formed between the core tube and the inner tube; the liquid intake pipe is serially connected to an adjuster for regulating the status of liquid feed. A plurality of the steam heat collecting pipes are arranged side by side on a framework provided with a reflecting board lined at the back and a transmitting board arranged in the front; the steam discharging ports are gathered to an exhaust manifold while the liquid intake pipes to a return liquid manifold; the exhaust manifold and the return liquid manifold are positioned for heat preservation in the framework with interfaces thereof exposed to form a heat collecting board generating steam. The exhaust manifold and the return liquid manifold of the steam heat collecting board are respectively connected with a water tank to form a steam-heating water heater/or connected with a condensation heat exchanger in a heat receiver to form the water heater or the heater of superconductive heat transmission through a steam transport pipe and a return liquid pipe. An absorption air conditioner is serially connected between the steam transport pipe and the return liquid pipe to form a steam-source solar energy air conditioner.

The invention belongs to the technical field of medical apparatuses and instruments and provides a nerve-blocking puncture catheter needle with an adjustable puncture head. The catheter needle mainly consists of a puncture catheter and a puncture needle core. During operation, the puncture needle core is sleeved by the puncture catheter, and the sharp end of the puncture needle core extends out of a port of the puncture catheter and has sharpness. Under the ultrasonic guidance, the sharp end of the puncture needle core can return to the puncture catheter through adjustment and control when the catheter is close to the target nerve, and the catheter needle loses the sharpness but still has toughness and can continue to penetrate the fascia tissue to be close to the nerve till the catheter needle touches the nerve. Due to the fact that a needle point returns back to the catheter and loses the sharpness, the nerve is not hurt, the catheter needle reaches a target position, the puncture needle core can be directly removed, and the puncture catheter is indwelt around the nerve for future anesthesia medicine application or anesthesia analgesia treatment and other applications.

The invention discloses a printing head for a 3D printer. The printing head comprises a shell, wherein a feeding device is vertically slipped in the shell; a pressure device is arranged above the feeding device; an outlet of the feeding device is communicated with a nozzle through a volume metering pump; the feeding device comprises a driving device, and a screw rod driven by the driving device to rotate; a feeding port is formed surrounding the upper side of the shell of the screw rod; a hot melting cavity is formed surrounding the lower side of the shell of the screw rod; and a one-way valve is sleeved at the tail end of the screw rod. The printing head for the 3D printer has the advantages of use of multiple raw materials as printing materials, low cost and high printing preciseness.

The invention provides a heat pump system, a control method and a heat pump drying device. The heat pump system comprises a first refrigeration circulating system and a second refrigeration circulating system. The first refrigeration circulating system can be independently switched on when the temperature T<in> in a drying room is higher than T1, and the second refrigeration circulating system canbe switched off at the moment. The second refrigeration circulating system can be independently switched on when the temperature T<in> in the drying room is smaller than a T2, and the first refrigeration circulating system can be switched off at the moment. The first refrigeration circulating system and the second refrigeration circulating system can be simultaneously switched on when the temperature in the drying room T<in> meets T2<=T<in><=T1, wherein T1 is larger than T2. By the adoption of the heat pump system, through switching between single-stage heat pump circulation and cascade heatpump circulation and combination of open type heating and a closed type dehumidification mode, efficient operation of the heat pump in the full drying process is achieved.

The invention provides a catalyst dephosphorizing yellow phosphorus tail gases and a preparation method thereof. The method comprises: dipping a surface treated active carbon carrier into a metal salt solution; and dropping a pyrophosphate or phosphatic solution into the solution after dipping to adjust a pH value to make the solution be alkaline, wherein the metal salt solution and the pyrophosphate or phosphatic solution react to generate a metal phosphate or a pyrophosphate deposition which does not react with a sulfide, the deposition is adhered on the carrier, and the catalyst for dephosphorizing the yellow phosphorus tail gases is obtained after aging, filtrating and drying processes. The catalyst of the invention has strong endurance against sulfides, can make the yellow phosphorus tail gas dephosphorization purification reaction be continuously carried out under a certain reaction condition, and has no need to generation.

The invention provides an unmanned aerial vehicle control method and device, and relates to the technical field of unmanned aerial vehicle control. The method comprises the steps that 1, first flightstate data of a first unmanned aerial vehicle is acquired; 2, whether or not the first flight state data is within a set threshold range is judged; 3, if the first flight state data is not within theset threshold range, a second unmanned aerial vehicle is controlled to fly to the position around the first unmanned aerial vehicle, the first unmanned aerial vehicle is replaced with the second unmanned aerial vehicle, and the second unmanned aerial vehicle continues to execute actions of the first unmanned aerial vehicle; and 4, the first unmanned aerial vehicle is controlled to return to the ground. According to the unmanned aerial vehicle control method and device, alternating work of the unmanned aerial vehicles can be achieved to ensure continuous proceeding of a task, and the use efficiency of the unmanned aerial vehicles is improved; and meanwhile, operation and implementation are easy, and the experience degree of a user can be increased.

The invention discloses a spectrum resource allocation method based on auction. The spectrum resource allocation method based on the auction uses two layers of auction models, wherein the first layer auction is based on a main user and a relay node, and the second layer is between the relay node and a secondary user. The spectrum resource allocation method based on the auction comprises the following steps: the second layer auction is performed virtually; the relay node collects the budget, the quotation, and the demand for resources of the secondary user; the amount of collected money is calculated; the secondary users are randomly divided into two sets, and the victorious secondary user set is confirmed firstly; the relay node competes for the main user spectrum resource after collecting the amount of the secondary user; the main user submits the price of the spectrum resource, and the relay node submits the budget for the resource, so that a two division graph is set up, and the difference of the price and the budget is used as the weight of the two division graph; the maximum weighted matching algorithm is used for the two division graph, and the VCG auction algorithm is used to calculate the final payment amount of the relay node; and after the relay node competes for the main user successfully, the second layer auction is carried out again to assign the competitive spectrum resources to the final victorious secondary user.

The invention discloses a pyramid-shaped solar photo-thermal evaporator. The pyramid-shaped solar photo-thermal evaporator comprises a heat insulation layer, a water conveying channel and a pyramid-shaped photo-thermal evaporation structure. The pyramid-shaped photo-thermal evaporation structure comprises four photo-thermal absorption surfaces, and each photo-thermal absorption surface comprises a plurality of divergent water collection micro-channels extending from the top of a pyramid to the bottom of the pyramid; a plasmon nano-particle surface layer, a middle hydrophilic layer and a bottom substrate are sequentially arranged from the surface layer to the bottom. The water conveying channel is composed of water absorption cotton cores, the water absorption cotton cores are located in parallel hole channels formed in the heat insulation layer, the lower ends of the water absorption cotton cores extend into the water body, and the upper ends of the water absorption cotton cores are connected with the photo-thermal absorption surface water collection micro-channels. According to the pyramid-shaped three-dimensional photo-thermal evaporation structure, the photo-thermal evaporation area is greatly increased, meanwhile, efficient photo-thermal conversion is achieved through the plasmon nanoparticles, in addition, rapid and sufficient supply of evaporated water is guaranteed through the water collection micro-channels and the hydrophilic layer, therefore efficient solar evaporation and seawater desalination are achieved. The invention further provides a preparation method of the evaporator.

The invention relates to testing of substance reaction heat, in particular to a calorimetric testing method and device of a continuous flow gas-phase reaction technology. By adopting a continuous flowgas-phase calorimetric method, calorimetric testing is conducted on an adiabatic calorimetry testing device according to an adiabatic mode and a gradient scanning mode, precise control can be conducted on the reaction process, and meanwhile, data can be collected and analyzed in real time. The device comprises a reactor system, a central control system, a temperature control unit and a reaction testing pool unit. The problem can be well solved through testing, and the device can be used for calorimetric testing of gas-phase continuous flow reaction technology.

The invention discloses a numerical control four-axis welding manipulator. The numerical control four-axis welding manipulator comprises a baseplate and movable wheels; the movable wheels are arrangedat the lower end of the baseplate; an equipment box is arranged at the upper end of the baseplate; a lifting table is arranged at the upper part of the equipment box; a base is arranged at the upperend of the lifting table, and is movably connected with a driving arm; and a gun body is arranged at the end part of the driving arm. In the use process of the numerical control four-axis welding manipulator, a control device in the equipment box controls the numerical control four-axis welding manipulator to operate; through arrangement of the lifting table, the total height is adjusted; througharrangement of a welding wire placing rack and a transmission frame, welding wires are guided into a melting cavity from a wire guide hole through a driving motor; and through arrangement of an air pump, high-pressure air is used for blowing out molten welding wires. The numerical control four-axis welding manipulator is stable in work adjustment and quick in direction adjustment, melts the welding wires in the gun body, prevents bending of the welding wires, guarantees continuous implementation of the welding work, shortens the time, and improves the working efficiency.

The invention belongs to the technical field of material injection machinery and particularly relates to a material injection device for a mold. Through the device, the technical problem in the prior art that the generality is poor and the like is solved. The device comprises a material injection box with a cavity. A feeding hole communicated with the cavity is formed in the material injection box, a plurality of through holes distributed in the same plane and communicated with the cavity are formed in the material injection box, and plugs for plugging the through holes or material injection nozzles for injecting materials into the mold are fixed in the through holes respectively. Compared with the prior art, the material injection device has the advantages of being reasonable in design and good in generality and improving production efficiency; being good in stability and practicality; improving molded product quality.