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

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.

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.

The invention relates to an airflow generating system and a method thereof. The system comprises an air source, a passage, at least an unpowered air draft device and at least a turbine generator set, wherein, the passage comprises an airflow inlet and an airflow outlet which are communicated with the air source; the unpowered air draft device is installed at the airflow outlet and is positioned in a natural wind field; the turbine generator set at least comprises rotating blades positioned in the passage; and driven by the airflow of the air source and / or the external wind power, the unpowered air draft device forms the negative pressure in the passage, and constantly sucks in air from the air source to form the airflow in the passage, and the airflow pushes the rotating blades to rotate so as to drive the turbine generator set to generate electricity. The system of the invention can constantly run, stably generate electivity, lower the dependence on weather and overcome the unicity and the limitation of clean energy of single type.

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.

The invention discloses a displacement detection device, a magnetic suspension bearing and a displacement detection method thereof. The device comprises: a redundant sensor and a control mechanism; wherein, the redundant sensor is arranged on each degree of freedom of a to-be-detected bearing (1) and used to redundantly obtain a displacement signal of the to-be-detected bearing (1) on the degree of freedom to which it belongs; and the control mechanism is used to control the operation condition of the degree of freedom to which the displacement signal belongs according to the redundantly obtained displacement signal. The solution of the present invention can overcome the defects of large resource consumption, complicated structure and low reliability in the prior art, and achieve beneficial effects of small resource occupancy, simple structure and high reliability.

The invention discloses a non-excavation-type repairing construction technology of an underground pipeline and belongs to the field of underground pipeline repairing. According to the repairing construction technology of the underground pipeline, the underground pipeline can be repaired without workers entering the underground pipeline. The non-excavation-type repairing construction technology ischaracterized by comprising the following steps that S1, an epoxy resin curing agent is prepared; S2, a reinforced fabric is soaked through the epoxy resin curing agent; S3, the reinforced fabric, soaked by the epoxy resin curing agent, in the step S2 is wound on a pipeline repairing device; S4, the pipeline repairing device wound with the reinforced fabric is sent to the breakage of the underground pipeline, and the reinforced fabric adheres to the breakage of the underground pipeline; and S5, after the reinforced fabric is solidified at the breakage of the underground pipeline, the pipelinerepairing device is recovered.

The invention solar energy controlled buoyancy automatically keep-balance helium-gas airship, which has a buoyancy device using air balloon lighter than air to generate buoyancy; a propulsion device, a manned or manned / luggage device, and a buoyancy control device. The invention at least has two groups of buoyancy gas containers-soft balloon or balloon-rigid balloon, while different balloon groups are connected by tubes; the tubes have been connected with pressure pump in series comprising inflator and charge / release valve; the invention uses the inflating balloon to generate buoyancy, while the buoyancy gas has different pressure and density distribution in different balloon groups via the function of inflating pump to realize the automatic control on the buoyancy; the buoyancy regulation is realized by adjusting the density and pressure distribution between each group of balloon via the electric control system; the invention has a adjust-flying airflow pump to realize automatic balance, while its outlets are distributed all around the aerobat via the outlet channels and branches. The invention has lower cost, environmental-friendly energy and better safety.

The invention discloses an automatic travelling pipeline repair device and a pipeline repair method. The automatic travelling pipeline repair device comprises a repair device body used for repairing a pipeline with a sunken inner wall, a travelling oil cylinder used for driving the repair device body to travel, and a supporting oil cylinder used for keeping the traveling oil cylinder to arrange inside a to-be-repaired pipeline in parallel; the travelling oil cylinder is arranged inside the to-be-repaired pipeline in parallel; one end of the travelling oil cylinder is connected with the repair device body; and the other end of the repair device body is connected with the supporting oil cylinder. According to the automatic travelling pipeline repair device disclosed by the invention, the repair device body, the travelling oil cylinder and the supporting oil cylinder are arranged, the repair device body is used for repairing the sunken pipeline, the travelling air cylinder is used for travelling the whole device, and the supporting oil cylinder is used for balancing stability of the whole device, so that the whole device can automatically realize free travelling and pipeline repair work inside the pipeline.

The invention relates to a drive-by-wire four-wheel independent steering system with a steering motor mounted on a Macpherson suspension lower swinging arm. The drive-by-wire four-wheel independent steering system comprises a frame, wheels, a suspension rack and a steering motor assembly, wherein the suspension rack is respectively connected with the wheels and the frame; the suspension rack has a lower swinging arm, a knuckle and a Macpherson suspension rack of a spring damper; the lower swinging arm and the spring damper are both connected with the frame and the knuckle; the knuckle is connected with the wheels; the steering motor assembly is fixed on the lower swinging arm and connected with the knuckle via a universal transmission device to drive the knuckle to rotate along a main pin axis. Compared with the prior art, the drive-by-wire four-wheel independent steering system with the steering motor mounted on the Macpherson suspension lower swinging arm is advantaged by high system integration degree, great modularization and flexible steering as well as wide steering range.

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.

The invention discloses a blast furnace smelting fly ash treatment system and a treatment method thereof, and belong to the field of environmental protection. The system involves a closed tank car, afly ash storage tank, a coal grinding device, a pulverized coal storage tank, a premixing whirling device, a mixture storage tank, a blowing tank, a distributor, spray guns and a blast furnace. According to the system and the method, annular coal injection openings are formed in a hearth of the blast furnace, pulverized coal, fly ash and combustion-supporting gas are injected into the blast furnace together through the annular coal injection openings, and the harmless treatment and resource utilization are conducted on the fly ash by means of a high-temperature environment in the blast furnace; and through the treatment system, various metals in the fly ash are all recovered with high added value, the occupied area is small, the investment is small, the environmental pollution is avoided,and the realizability is good.

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.

The invention discloses a data transmission method and system and a computer readable storage medium. The data transmission method is applied to a sending end, and t. The data transmission method comprises the following steps: the sending end processes a service plaintext by adopting a one-way hash function algorithm to generate a service abstract, and asymmetrically encrypts the service abstractby adopting a first private key of the sending end to generate an abstract ciphertext; symmetrically encrypting the service plaintext is symmetrically encrypted by adopting a secret key to generate aservice ciphertext; performing asymmetric encryption is performed on the secret key by adopting a second public key of a receiving end to generate a secret key ciphertext; and sending the abstract ciphertext, the service ciphertext and the secret key ciphertext are sent to the receiving end. According to the method disclosed in the invention, the data in the communication system can be encrypted and authenticated at the same time, so thatand therefore the occupation of transmission bandwidth is reduced.

The application discloses a novel structure of a paralleling network, a battery module used for configuring the paralleling network, a battery pack heating system for the battery module, and a heatingmethod for the battery module. The paralleling network is used for assembling in the battery module to connect a plurality of battery cells in parallel, the network is a conductive material that heats up after being energized, and the paralleling network comprises at least one positive connection terminal and at least one negative connection terminal. According to the paralleling network, batterymodule, battery pack heating system and battery module heating method, the battery module is directly heated by the parallel network of the battery module itself without the need of special heating component required for the battery module. The scheme is ingenious and straightforward, the structure is simple, the implementation is convenient, the module weight is not increased, and the overall cost is reduced.

The invention provides an integrated bridge deck hoisting device for superposed beam construction. The integrated bridge deck hoisting device comprises a bottom walking mechanism, a middle lifting mechanism and an upper lifting mechanism, wherein the bottom walking mechanism comprises a lower sliding rail and a supporting leg assembly; the middle lifting mechanism comprises a main beam and a middle hoisting assembly; the upper lifting mechanism comprises a portal crane and an upper sliding rail; the bottom part of the supporting leg assembly is connected with the lower sliding rail; the top part of the supporting leg assembly is connected with the bottom part of the main beam; the middle hoisting assembly is arranged at the top part of the main beam; the upper sliding rail is arranged at the top part of the main beam; the bottom part of the portal crane is connected with the upper sliding rail. The integrated bridge deck hoisting device provided by the invention has the advantages of strong stability and simplicity and convenience for operation; seamless engagement of installation construction of a steel beam and a bridge deck can be realized.

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.

The invention discloses a tea withering equipment, which relates to the technical field of tea preparation, and comprises an air heating and humidifying device connected to each other and a tea storage tank; the air heating and humidifying device includes a heating device, an air intake box arranged above the heating device, and Clear water is installed at the bottom of the air box, and a curved air intake pipe is provided above the clean water, and a plurality of small holes for entering water vapor are provided on the air intake pipe; the tea storage tank is provided with an inner cylinder and an outer cylinder, and the inner cylinder It includes multiple layers of tea storage layers. The side wall of the inner cylinder corresponding to each tea storage layer is provided with a tea inlet through the outer cylinder, and the side wall of the inner cylinder corresponding to each tea storage layer is also provided with a The disassembled air outlet cover, the side wall of the inner cylinder is also provided with micro holes for water vapor to enter. The invention solves the problem that the existing tea leaves are withered under natural conditions without special withering equipment, which makes the withering conditions inconvenient to control.

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.

The invention discloses a video updating method and system for video advertisements. The method includes steps of transferring to-be-updated video documents through a short range communication channel after a short range communication connection is established between an intelligent terminal and a video advertisement machine; replacing the original video document with the updated video document by the video advertisement machine. The technical solution provided by the invention has advantages of low updating cost and the like.

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.

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.

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.

The invention provides a conveying type on-line drying device and a drying system with the same. The drying device comprises a material conveying bin, a paddle type conveying shaft arranged in the material conveying bin, a material inlet formed in the top of one end of the material conveying bin, a material outlet formed in the lower portion of the other end of the material conveying bin, an openable bin cover arranged on the top of the material conveying bin, and a hot air inlet formed at the material inlet. The bin cover extends from the inner side of the material inlet to the tail end of the material conveying bin. The conveying type on-line drying device is simple in structure, easy to manufacture, apply and popularize and capable of drying broken raw coal on line, and does not need to occupy a large area of land, waiting is avoided, the production efficiency is greatly improved, and particularly the production cost is greatly reduced.

The invention solar energy controlled buoyancy automatically keep-balance helium-gas airship, which has a buoyancy device using air balloon lighter than air to generate buoyancy; a propulsion device, a manned or manned / luggage device, and a buoyancy control device. The invention at least has two groups of buoyancy gas containers-soft balloon or balloon-rigid balloon, while different balloon groups are connected by tubes; the tubes have been connected with pressure pump in series comprising inflator and charge / release valve; the invention uses the inflating balloon to generate buoyancy, while the buoyancy gas has different pressure and density distribution in different balloon groups via the function of inflating pump to realize the automatic control on the buoyancy; the buoyancy regulation is realized by adjusting the density and pressure distribution between each group of balloon via the electric control system; the invention has a adjust-flying airflow pump to realize automatic balance, while its outlets are distributed all around the aerobat via the outlet channels and branches. The invention has lower cost, environmental-friendly energy and better safety.

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.

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.

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.

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.