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39results about How to "No need to occupy" patented technology

Wireless access point working channel selecting method and device

The invention provides a wireless access point working channel selecting method and a wireless access point working channel selecting device. The wireless access point working channel selecting method comprises the following steps of: periodically transmitting broadcast signals outwards from an AP which is positioned in a working state; determining the interference level of an adjacent AP according to the signal strength by the AP receiving the broadcast signals; calculating the channel spacing between the working channel used by the adjacent AP and the working channel used by the AP; determining the corresponding interference degree according to the channel spacing and the preset channel spacing and an interference degree comparison table; multiplying the interference level by the interference degree to obtain the distribution information of the interference value; and selecting the working channel with the minimum interference value according to the interference distribution information. The wireless access point working channel selecting method and the wireless access point working channel selecting device can reduce the channel interference and improve the system capacity, does not need to occupy a common channel, avoids the resource waste, can be applied to the common fat AP framework and thin AP framework in the wireless local area network simultaneously, and has wide applicability.
Owner:BEIJING XINWANG RUIJIE NETWORK TECH CO LTD

Underground pipeline repairing system and method

The invention relates to an underground pipeline repairing system and method. The underground pipeline repairing system is composed of a pipeline repairing supporting framework body, a repairer driving device, a repair device, an operation control device, a pipeline positioning camera, a main supporting frame, a positioning instrument, a controller and a battery pack. The main supporting frame is a cylindrical framework overall, the pipeline positioning camera is arranged at the front end of the main supporting frame, the positioning instrument, the battery pack and the controller are arranged in the middle of the main supporting frame, and the controller is connected with a driver, the pipeline positioning camera and the positioning instrument through circuits. The repair device is installed on the main supporting frame. A pipeline repair air bag is arranged in a positioning barrel and expands when inflated for a pipeline to be repaired, the positioning barrel and a gel adsorption layer fixing belt expands as well until the positioning barrel and the gel adsorption layer are attached to the pipeline to be repaired. The underground pipeline repairing system and method are scientific in design, reasonable in structure, convenient to construct and low in manufacturing cost. A repairer does not need to enter the pipeline and carries out remote control operation on the ground. The repairing portion of the pipeline to be repaired is accurately observed and positioned. The underground pipeline repairing system and method can be applied and popularized in the urban water conveying pipeline repairing engineering, and has broad market prospects.
Owner:TIANJIN WATER RESOURCES RES INST

Combined ecological floating bed and culture method thereof

The invention relates to a combined ecological floating bed and a culture method thereof. The combined ecological floating bed falls into an upper layer, a middle layer and a lower layer. The upper layer is an aquatic plant area for planting halophilous terrestrial plants, the middle layer is an aquatic animal area for culturing aquatic animals, and the lower layer is for free-range filter feeding shellfish. The combined ecological floating bed is formed by series connection of combined ecological floating bed monomers. The combined ecological floating bed monomers are connected in series and then fixed to a timber pile so as to form the combined ecological floating bed, the four corners and the central position of which are respectively connected to a floating ball. The combined ecological floating bed and the culture method provided by the invention can comprehensively utilize the space levels of seawater pond water, integrate microorganism and plant remediation, by extending the food chain of a floating bed ecological system and strengthening the microbial enrichment characteristics of the floating bed, reduce culture diseases, improve the comprehensive benefits of culture, and simultaneously perform in-situ remediation on water, regulate the content of nitrogen and phosphorus of water and the pH value, and improve the transparency, etc.
Owner:SUN YAT SEN UNIV

Plywood molding system

The invention provides a plywood molding system. The system comprises a conveying and stacking area, a slab molding area and a mold locking and pressure maintaining area in sequential connection; the conveying and stacking area comprises single board conveying lines, a planking line and laminators arranged on the single board conveying lines and the planking line, single boards are gelatinized through the laminators, and the gelatinized single boards are conveyed to the planking line for stacking and conveying through the single board conveying lines; the slab molding area comprises a fixed-size cutting machine and molds, the slab molding area is connected with the conveying and stacking area through the fixed-size cutting machine, the stacked single boards on the planking line are cut into slabs in fixed size, and the molds are used for containing and compacting single slabs or multiple slabs; the mold locking and pressure maintaining area comprises presses, and pressurized mold locking and depressurized mold disassembly are conducted on the molds through the presses. According to the system, molding can be conducted only through cold pressing and pressure maintaining, compacting conditions are easily achieved, energy consumption is low, and it is not necessary to occupy a large amount of large press equipment, so that the production efficiency is improved.
Owner:中山市富木木制品有限公司

Seawater tower for self-elevating drilling platform and self-elevating drilling platform

The invention discloses a seawater tower for a self-elevating drilling platform and the self-elevating drilling platform. The platform comprises a pile leg and a pile shoe. The seawater tower comprises a sliding rail, a lifting pipe, an immersible pump and an auxiliary seawater supply device. The sliding rail is arranged on a chord pipe of the pile leg. A plugging device is arranged at the bottom of the sliding rail, and the sliding rail is provided with a pin hole. The auxiliary seawater supply device is arranged on the top of the lifting pipe. The immersible pump is provided with a protection pipe. The lifting pipe is provided with a sliding locking device, and the immersible pump is provided with a sliding locking device. The sliding locking devices are used for being matched with the sliding rail to achieve sliding or locking of the immersible pump and the lifting pipe. The plugging device is used for protecting the pile shoe against damage when the immersible pump disengages. The protection pipe is used for preventing the immersible pump from being damaged by the external environment. The immersible pump, the lifting pipe and the auxiliary seawater supply device are used for jointly achieving seawater supply of the platform. The platform further comprises the seawater tower. The capability of resisting the severe weather through the seawater tower is improved, seawater supply continuity of the platform in the severe weather is ensured, and accordingly normal drilling work of the platform is not affected.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Method for densely building hydroelectric power station and hydroelectric power station capable of being densely built

The invention relates to a method for densely building hydroelectric power stations. The bottom line of a water outlet at a built or previous hydroelectric power station or a bottom line of a river bed as a starting line, the line is horizontally extended to a point at which a next section of a river channel and a flood-season water level line are intersected, and another hydroelectric power station can be built at the point. The hydroelectric power station capable of being densely built comprises water turbines, a generator set and a transmission mechanism which is connected with the water turbines and the generator set. The hydroelectric power station additionally comprises a first bypass gate, a second bypass gate, a first flushing gate, a second flushing gate, a first separation wall, a second separation wall, and a first flume and a second flume which are formed by the first separation wall and the second separation wall, wherein the first bypass gate, the second bypass gate, the first flushing gate and the second flushing gate are sequentially built at the upstream end in the inflow direction of a river, and the first separation wall and the second separation wall are built at the downstream ends of the first flushing gate and the second flushing gate. The water turbines are arranged in the first flume and the second flume. The transmission shafts of the transverse water turbines are mutually connected and then are connected with the transmission mechanism.
Owner:李建英

Method for eliminating sparking of electromechanical system

The invention discloses a method for eliminating sparking of an electromechanical system. The method includes: when motor starting is needed in program control, a control command is transmitted to switch on an alternating current contact so as to start a motor, time constant is written into a timer simultaneously, the timer is started, command word is written to a single-chip microcomputer special function register PCON to allow a single-chip microcomputer to enter a sleep state without executing programs, in the mean time, only the timer operates, when overflow interruption of the timer occurs, the single-chip microcomputer is awakened, the single-chip microcomputer loads time constant to the timer again and enters the sleep state without executing programs, the procedures are repeated for 5 times until fully suction of the alternating current contact and for nearly 400 milliseconds, starting of the motor is completed, and the timer awakens the single-chip microcomputer to execute programs normally. Sparking is eliminated by using a sleep method, increasing of hardware cost is unnecessary, occupation of a large amount of internal memory is unnecessary, frequent reset of systems is avoided, and the method is short in code, simple and particle, and excellent in effect.
Owner:南京火天食品机械制造有限公司

Mountainous region solar photovoltaic system installation structure

The invention discloses a mountainous region solar photovoltaic system installation structure, and relates to the technical field of solar energy installation. The middle part of a cross bar is connected with a supporting bottom rod through a cross-shaped locking screw rod; the cross-shaped end of the cross-shaped locking screw rod is embedded in a cross-shaped locking screw rod groove formed in the side wall of the supporting bottom rod; a screw rod hole is formed in the center of the cross-shaped locking screw rod groove and penetrates through the supporting bottom rod; the threaded end of the cross-shaped locking screw rod penetrates through the screw rod hole and the cross bar and then is connected with a fixing hand screw in a screwed mode; threaded supporting ejector rods are connected with the upper end and the lower end of the supporting bottom rod in a threaded and screwed mode; the outer ends of the threaded supporting ejector rods are of a cone structure; and the threaded supporting ejector rods are movably arranged in threaded grooves formed in the supporting bottom rod. A solar system can be installed on rock on the side edge of a mountainous region. The problem that asupport falls off due to rock weathering can be effectively avoided. A narrow ground channel in the mountainous region does not need to be occupied, and meanwhile safety is improved.
Owner:天津金沃能源科技股份有限公司

Seawater tower for jack-up drilling platform and jack-up drilling platform

The invention discloses a seawater tower for a self-elevating drilling platform and the self-elevating drilling platform. The platform comprises a pile leg and a pile shoe. The seawater tower comprises a sliding rail, a lifting pipe, an immersible pump and an auxiliary seawater supply device. The sliding rail is arranged on a chord pipe of the pile leg. A plugging device is arranged at the bottom of the sliding rail, and the sliding rail is provided with a pin hole. The auxiliary seawater supply device is arranged on the top of the lifting pipe. The immersible pump is provided with a protection pipe. The lifting pipe is provided with a sliding locking device, and the immersible pump is provided with a sliding locking device. The sliding locking devices are used for being matched with the sliding rail to achieve sliding or locking of the immersible pump and the lifting pipe. The plugging device is used for protecting the pile shoe against damage when the immersible pump disengages. The protection pipe is used for preventing the immersible pump from being damaged by the external environment. The immersible pump, the lifting pipe and the auxiliary seawater supply device are used for jointly achieving seawater supply of the platform. The platform further comprises the seawater tower. The capability of resisting the severe weather through the seawater tower is improved, seawater supply continuity of the platform in the severe weather is ensured, and accordingly normal drilling work of the platform is not affected.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Preparation method of microparticles for removing organic chlorine residue in drinking water source

The invention relates to a preparation method of microparticles for removing organic chlorine residue in a drinking water source and belongs to the field of environmental protection. The preparation method comprises carrying out rolling granulation on carbon black by a low speed roller, wherein in rolling granulation, deionized water and carbon black powder are sprinkled to the carbon black so that the materials are bonded and are rolled to form particles, after rolling granulation, taking out the carbon black particles with different sizes, carrying out dispersion, carrying out drying, taking out the particles, grinding marble particles to obtain ultrafine calcium carbonate particles, uniformly scattering the ultrafine calcium carbonate particles into a polydimethylsiloxane solution, carrying out mixing stirring to obtain a uniform mixture, then uniformly sprinkling the mixed polydimethylsiloxane solution by a rotation machine, carrying out air-flow injection, carrying out washing by hydrochloric acid, carrying out flushing and carrying out drying to obtain the microparticles for removing organic chlorine residue in a drinking water source. The microparticles have chlorine residue removal efficiency of 99% or more, have high treatment effects, have short treatment time, do not occupy a large area of land, have simple treatment processes and have a high cost.
Owner:CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH

Lacquer stirring barrel capable of accurately controlling discharging amount and working method thereof

The invention discloses a latex stirring barrel capable of accurately controlling discharging amount. The latex stirring barrel comprises a barrel body, a stirring motor, a stirring shaft and a plurality of stirring blades. A discharging outlet is arranged on the bottom side of the barrel body, and a discharging tube is arranged on the discharging outlet. The discharge tube is provided with a flowmeter, a PLC controller is arranged on the front side of the barrel body, a solenoid valve is arranged on the discharge tube, the flow meter is connected with the signal receiving end of the PLC controller, and the control end of the PLC controller is respectively connected with the solenoid valve and the stirring motor; the top of the barrel body is provided with an opening, and the stirring motor is installed on the opening at the top of the barrel body through a motor bracket. The middle of the motor bracket is provided with a stirring shaft stabilizing structure. The stirring shaft stabilizing structure includes a shaft sleeve, a bearing and two connecting rods. The tops of the connecting rods are connected with the motor bracket, and the bottoms of the connecting rods are connected with the bearing. The latex stirring barrel can accurately control the amount of latex to be discharged and control the cost of raw materials, and at the same time, the overall structure is stable andreliable, the installation of the stirring motor is firm and reliable, and the use flexibility is high. At the same time, the rotation stability of the stirring shaft is good, and the stirring effectis ensured.
Owner:WENZHOU KAMARY LATEX PROD

Disc type tail fiber storage device

The invention provides a disc type tail fiber storage device. The disc type tail fiber storage device comprises a base, wherein a supporting rod is arranged on the base; a plurality of cylindrical storage boxes are arranged on the supporting rod; the plurality of storage boxes are vertically and sequentially arranged in the height direction of the supporting rod; one end of each storage box is rotationally connected with the supporting rod, and a locking component is arranged at the other end of each storage box; each storage box comprises a semicircular movable part and a semicircular fixed part; the semicircular movable part is rotatably connected with the semicircular fixed part; and a cylindrical cavity is formed after the semicircular fixed part and the semicircular movable part are closed. The plurality of storage boxes are arranged on the supporting rod, the plurality of storage boxes are vertically and sequentially arranged in the height direction of the supporting rod, and thestorage boxes are rotatably connected with the supporting rod, so that the horizontal area occupied by tail fibers is reduced; the storage amount of the tail fibers is increased; and in addition, thetail fibers can be conveniently extracted and stored from various different angles, and the selection and use efficiency of the tail fibers is improved.
Owner:国网山东省电力公司昌邑市供电公司 +1

Method for densely building hydroelectric power station and hydroelectric power station capable of being densely built

A method of densely constructing hydropower stations, starting from the bottom line of the water outlet or the bottom line of the river bed at the existing or previous hydropower station, and extending this line horizontally to the next section of the river and the two lines of the water level line during the flood season At the intersection point, one more hydroelectric power station can be built; a hydropower station that can be built intensively, including a hydraulic turbine, a generating set and a transmission mechanism connecting the two; it also includes the first and second diverter gates; 1. The second flushing gate, the first and second partition walls and the first and second water diversion channels formed by the first and second partition walls; the first and second diversion gates and the first and second The flushing gates are sequentially built at the upstream end of the river or the incoming water direction of the river, and the first and second separation walls are built at the downstream ends of the first and second flushing gates; the water turbines are arranged at the first and second In the two water diversion grooves, the transmission shafts of the horizontal water turbines are connected to each other and then connected to the transmission mechanism.
Owner:李建英

Wireless access point working channel selecting method and device

The invention provides a wireless access point working channel selecting method and a wireless access point working channel selecting device. The wireless access point working channel selecting method comprises the following steps of: periodically transmitting broadcast signals outwards from an AP which is positioned in a working state; determining the interference level of an adjacent AP according to the signal strength by the AP receiving the broadcast signals; calculating the channel spacing between the working channel used by the adjacent AP and the working channel used by the AP; determining the corresponding interference degree according to the channel spacing and the preset channel spacing and an interference degree comparison table; multiplying the interference level by the interference degree to obtain the distribution information of the interference value; and selecting the working channel with the minimum interference value according to the interference distribution information. The wireless access point working channel selecting method and the wireless access point working channel selecting device can reduce the channel interference and improve the system capacity, does not need to occupy a common channel, avoids the resource waste, can be applied to the common fat AP framework and thin AP framework in the wireless local area network simultaneously, and has wide applicability.
Owner:BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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