155results about How to "Avoid direct sunlight" patented technology

The invention relates to an intelligent shutter control system and an intelligent shutter control method which have the advantages that the wiring operation is avoided, the intelligent level is high, the efficiency is high and the energy is saved. The intelligent shutter control system comprises a remote control terminal and a coordinator unit, wherein the remote control terminal communicates with the coordinator unit through a wireless and Ethernet communication method to complete the setting of system parameters and the enquiry of information; the coordinator unit remotely communicates with the remote control terminal, establishes ZigBee communication with a driver unit and a sensor unit, and is used for receiving daylighting information and user commands and feeding back the field information to the remote control terminal. The system has a PID (Proportion Integration Differentiation) control function which adopts fuzzy control, and the illumination intensity can be self-tuned according to recorded user setting favorites.

The invention discloses a machine vision-based unmanned aerial vehicle automatic detection method and an unmanned aerial vehicle control method. According to the machine vision-based unmanned aerial vehicle automatic detection method and the unmanned aerial vehicle control method, an image acquisition device is utilized to automatically inspect the sky; adaption to the change of illumination is realized, and the direct irradiation of strong light is avoided; an image sequence of an area to be detected is obtained; a low-altitude aircraft such as an unmanned aerial vehicle is detected automatically according to target motion characteristics of images in the sequence and the difference of a target and background in each image; and the satellite positioning channel and remote control channel of the unmanned aerial vehicle are subjected to radio interference, so that control on the unmanned aerial vehicle can be realized. With the method of the invention adopted, a whole space domain can be monitored; the orientation of an optical imaging sensor can be automatically adjusted, so that the optical imaging sensor will not be exposed to the direct irradiation of strong light; and environmental background can be automatically learned in real time; and a target can be detected and captured. The method has strong adaptability to the environment and has outstanding economic and practical values.

The invention discloses a one-way moisture-transferring fabric and a processing method thereof. The fabric is in a double-layer double-side mesh structure, wherein one side of the fabric which is close to the skin i.e., an internal layer uses polypropylene fibers while the other side i.e., an external layer uses terylene fibers, and the internal layer and the external layer are connected by terylene macrofibers with recesses on the surface and special-shaped cross sections. The processing method of the fabric comprises: that in the process of weaving the fabric, polypropylene fibers are selected as internal layer materials, polyester fibers are selected as external layer materials, and terylene macrofibers with recesses on the surface and special-shaped cross sections are selected as connecting material, thereby weaving the double-layer double-side mesh structured fabric whose internal layer is polypropylene fibers, external layer is terylene fibers, and the internal layer and the external layer are connected by the terylene macrofibers with recesses on the surface and special-shaped cross sections; that connection points which are evenly arranged are established between the internal and the external layers, wherein the connection points of the internal and the external layers are connected to each other through the terylene macrofibers; and that in a dyeing after-finishing process, the fabric is processed to be hydrophilic, quick-drying, and soft. The fabric in the invention is well in hygroscopic property and moisture-transferring property, and has the effects of one-way moisture transferring and quick drying.

The invention discloses an aquaculture microorganism substrate improver having a triplet efficacy and a preparation method thereof. A high viable content can still be kept in the production and transportation process, and the effect of the viable content can still be efficiently played under a low-oxygen-solubility condition on the bottom of a pond. Organic substances such as bait residues and manure can be decomposed, and the pathogenic microorganism can be inhibited; organic phosphorus in the water is converted into inorganic phosphorus, and the growth of phytoplankton is promoted; nitrite nitrogen in the water is converted to nitrogen to removal water, so that the content of the water nitrite nitrogen is reduced; and heavy metal ions are chelated, so that the toxicity of heavy metal is reduced, a triplet efficacy of bottom improvement, water regulation and detoxication can be realized, and the water environment is comprehensively improved. The aquaculture microorganism substrate improver is prepared from the following components in parts by weight: 1 to 3 parts of zeolite powder, 2 to 8 parts of bentonite, 0.5 to 4 parts of diatomite, 1 to 3 parts of polyglutamic acid powder, and 2 to 8 parts of composite probiotics powder.

The invention relates to a three-way low-frequency variable-rigidity variable-damping tuned mass damper. The tuned mass damper comprises a shell, a mass block and an air spring, wherein the mass block is hollow inside to form an air chamber; one end of the air spring is fixedly connected with the outer surface of the mass block; the other end is in sliding connection with the inner surface of the shell. Compared to the prior art, the low-frequency variable-rigidity variable-damping tuned mass damper has the advantages of good stability, convenience in mounting and maintenance, good sealing performance, low vibration isolation frequency, space saving and the like.

The invention discloses a composite microecological preparation containing Clostridium butyricum and used for aquaculture, and a preparation method thereof. The composite microecological preparation can be used as both a feed additive and a water quality improver in aquaculture production. The composite microecological preparation can maintain the micro-ecological balance of the digestive tract, improve the health status of the intestinal epithelial tissue, improve the immunity of the organism, reduce the occurrence of diseases, promote the digestion and absorption of nutrients, increase survival rate, decompose residual baits, feces and other organic substances in aquaculture water bodies and inhibit the growth and reproduction of pathogenic microorganisms in water bodies. The composite microecological preparation comprises the following components by mass: 0.5-2 parts of Clostridium butyricum powder, 0.5-2 parts of Bacillus coagulans powder, 0.5-2 parts of Enterococcus faecalis powder, 0.5-2 parts of Bacillus subtilis powder, 1-3 parts of soluble starch, 1-3 parts of zeolite powder and 1-3 parts of rice bran powder.

The invention provides a broccoli dehydrating processing method which includes the following steps of selecting materials; cutting off stem and leaves below bud; rinsing by salt water; dicing; sterilizing and killing enzyme by blanching and scalding; blanching and scalding the diced broccoli by 97-99 DEG C hot water for 120-180 seconds; adding soda ash to control the pH value of the blanching and scalding liquid to be in 8.0-9.0; cooling; drying in two stages; selecting again the dried semi-finished product, seeking the foreign bodied out; sealing, packing, and loading in storeroom. The invention conducts effective protective processes during the process course, and the produced broccoli has high quality.

The invention discloses a soybean biological seed coating agent which is prepared from the following components in percentage by weight: 20 percent of complex microbial community, 5 percent of bio-regulator SODM, 10 percent of trace element, 10 percent of auxiliary agent, 0.4 percent of total matrines, and the balance of water. The invention has the advantages of environmental protection, enhancement of crop stress tolerance, strengthening of seedling, and improvement of yield and quality.

The invention discloses a planar fluorescent condenser and a method for preparing the same. The planar fluorescent condenser comprises scattering particles, fluorescent quantum dots and planar optical waveguides. The method includes (1), preparing fluorescent quantum dot dispersing liquid; (2), mixing polymers and / or raw materials for preparing the polymers with the scattering particles, preparing the composite planar optical waveguides by the aid of obtained mixed solution, combining the fluorescent quantum dot dispersing liquid with the composite planar optical waveguides to obtain the composite planar fluorescent condenser, alternately, carrying out a step (2)' instead of the step (2) after the step (1) is carried out, to be more specific, mixing the polymers and / or the raw materials for preparing the polymers, the scattering particles and the fluorescent quantum dot dispersing liquid with one another and preparing the doped planar fluorescent condenser by the aid of mixed solution. The planar fluorescent condenser and the method have the advantages that the light conversion efficiency of the planar fluorescent condenser can be improved by more than 50% as compared with planar fluorescent devices without doped scattering particles, and the planar fluorescent condenser and the method are low in cost and have broad application prospects.

The invention relates to a self-cleaning street lamp. The self-cleaning street lamp is characterized by comprising a lighting part, a supporting part and a cleaning part, wherein the lighting part is fixed on the supporting part; the cleaning part is built in the supporting part and connected with the lighting part; the lighting part comprises a glass lens, an LED bulb and a lampshade; the LED bulb is arranged in the lampshade; the glass lens is positioned at the lower end of the lampshade and forms a closed space together with the lampshade; and the lampshade is fixed on a lamp arm. According to the scheme, the self-cleaning street lamp has a favorable lighting field of vision and is high in lighting brightness. When the self-cleaning street lamp is used for daily lighting, real-time fixed-point self-cleaning can be realized, so that long-time cleanliness of the glass lens of the street lamp can be guaranteed, an optimal lighting effect is achieved, and the walking and driving safety of people can be strongly guaranteed.

The invention discloses an adhesive rubber water stop without isolation film, and a preparation method thereof. The adhesive rubber water stop without isolation film comprises a rubber water stop body, a self-adhesive glue layer and a concrete loving anti-adhesion coating, wherein the rubber water stop body, the self-adhesive glue layer and the concrete loving anti-adhesion coating are arranged insequence in a stacking manner. The self-adhesive glue layer comprises the following gradients, by mass part, of styrene-series thermoplastic elastomer compositions, tackifiers, plasticizers, antioxidants, ultraviolet light screening agents, couplers and white carbon black. The concrete loving anti-adhesion coating comprises the gradients, by mass part, of concrete loving lotion, filler, water, light stabilizers, dispersing agents, antifoaming agents, concrete loving couplers and titanium dioxide. The adhesive rubber water stop without isolation film is free of isolation film, is free of sandcovering operation, and is easier and more convenient in construction operation, and the construction efficiency is greatly improved; and at the same time, it can be avoided that the self-adhesive glue layer makes too much contact with the air, the situation that the self-adhesive glue layer is directly exposed to the blazing sun can be further avoided, the self-adhesive glue layer and the rubberwater stop are bonded more solid, and a better waterproof effect is achieved.

The invention relates to a projector capable of identifying a front barrier and correcting output images. The projector comprises a projection control system, a projector lens, a camera module and an image processing module. A camera is used for obtaining the images of a barrier between a projector and a projector screen and a shadow on the projector screen, and sending the images to the image processing module; the image processing module judges whether there is a barrier or not according to the images collected by the camera, calculates the areas of the barrier and the screen shadow if there is the barrier, measures the distance between the barrier and the screen, and the distance between the barrier and the projector and further calculates the pixel positions shielded by the barrier at the location of a light source; the outputs of the image processing module are sent to the projection control system; and the projection control system controls the light outputs of the pixels of the shielded parts. According to the projector, the barrier in front of the projector can be automatically detected, the light source corresponding to the barrier is closed, and the barrier is prevented from being directly projected by the strong light of the projector.

The invention discloses a gymnasium with light wooden ridge structure which contains several arched suspending beams of alternative arrangement. The feet of the arched suspending beams are fixed on the foundation by the metal hinge pieces. The adjacent arched suspending beams are supported by several wooden cross beams and connected by the second metal connecting pieces. They are also linked by the metal inclined shores on the diagonal direction. The outside arched suspending beam is fixed to the foundation by the wooden inclined shore. There are tectorial membranes on the upper part, both sides and their lower part of the ridge structure. The tectorial membrane on the lower part of the both sides can open and close by sliding. At least one gate is equipped at the both sides of the ridge structure. With this structure, the gymnasium is aesthetic and fashion, has light deadweight, suits for equipping in any areas including roofs of high buildings, has convenient installation, short engineering cyclic and natural lighting and can save energies.

The invention relates to the technical field of landscape greening, and provides a method for protecting the trunks of transplanted trees. The method includes the following steps: the growth information of the transplanted trees is acquired; mixed substratum and aqueous solution are mixed, so that slime is prepared, and the mixed substratum consists of soil, organic matter and controlled-release compound fertilizer; the prepared slime is applied on the trunks of the transplanted trees from the bottom to the top; the trucks with the slime are wrapped by multiple layers of mulching films, consequently, the trunks can be effectively prevented from being directly irradiated by intense light and blown by dry wind, the evaporated moisture of the trunks can be reduced, so that the trunks can be kept wet, meanwhile, inorganic salt and plant growth regulator can be effectively replenished, the survival rate of the transplanted trees can be increased, and tree resources, manpower and financial resources can be saved.

The invention relates to an ecological breeding method for Hippocampus erectus. The ecological breeding method for the Hippocampus erectus includes the following steps of: pairing and management of parent Hippocampus erectus; management of small-size young Hippocampus erectus; and management of middle-size young Hippocampus erectus. During the whole breeding process, a breeding environment including water temperature, salinity, water quality and illumination, can be reasonably controlled and arranged; during different stages of Hippocampus erectus breeding, i.e., a small-size young stage and a middle-size young stage, various parameters of a living environment of the Hippocampus erectus can be timely adjusted; and through change of feeding materials and perfect feeding domestication, the breeding survival rate and the growth rate of the Hippocampus erectus can be effectively ensured.

The invention relates to a lifting type police stand capable of multi-directionally sheltering from rain. The lifting type police stand capable of multi-directionally sheltering from rain comprises abase and a snap joint plate, wherein a sliding rod is connected in the base, the base is fixedly connected with the sliding rod, the middle of the sliding rod is provided with a sliding groove, the sliding rod is tightly attached to the sliding groove, the middle of the sliding groove is provided with a snap joint hole, the snap joint plate is installed at the top of the sliding groove, a base plate is fixed to the inner side of the sliding rod, the left side and the right side of the inside of the base plate are provided with supports, the supports are fixedly connected with the base plate, and the inner sides of the tops of the supports are connected with standing plates. The lifting type police stand has the advantages that the snap joint plate can be bilaterally adjusted through left-right sliding between the sliding rod and the base plate in the sliding groove, the left-right movement of a guidance protection device on the snap joint plate can be adjusted, accordingly position adjustment can be executed according to sunlight irritation angles, the degree of damage to the high temperature in summer can be reduced, and direct sunlight irradiation can be avoided by left-right movement.

The invention relates to the technical field of sun shielding for a light inlet of a high-orbit space optical remote sensor, and specifically relates to a light shield for an optical remote sensor. The light shield comprises a light blocking ring assembly, an extension mechanism, a driving mechanism and an annular flexible wall. The light shield for the optical remote sensor is in a compressed state before a satellite enters the orbit, the walls of all stages of light blocking rings are in a folded state, the extension mechanism is unfolded stage by stage under the driving of the driving mechanism after the satellite enters the predetermined orbit, the extension mechanism drives the corresponding light blocking rings to be unfolded stage by stage, the walls between the light blocking ringsare unfolded accordingly, and thus the whole light shield for the optical remote sensor is gradually unfolded in orbit along the direction of an optical axis of a camera. The light shield can directly reflect the incident sunlight after being unfolded in orbit, can directly reflects part of the incident light out of the light shield, and can also move part of the incident light forward, thereby significantly weakening the thermal disturbance imposed on an optical system by the incident sunlight, and achieving good effects of stray light suppression and heat dissipation while avoiding the direct sunlight.

The invention provides a grafting method of an improved inferior fruit tree. The method comprises the first step of etching square lines in the periphery of spore; the second step of cutting a square peel mouth on the cortex of a stock so as to make wood of the stock exposed, wherein the shape of the peel mouth is matched with the shape of a bud slice; the third step of conducting grafting at the temperature of 20-35 DEG C, putting the bud slice into the peel mouth, and making gaps of 5-8 mm exist between the two broadsides of the bud slice in the radial direction and the edge of the cutting mouth. According to the grafting method of the improved inferior fruit tree, when the bud slice and the cutting mouth of the stock are subjected to grafting, certain gaps exist between the two sides so that the water in the cortex of the stock cannot run off from the gaps can be guaranteed, and the purpose that redundant nutrient solution can be drained out through the gaps can be guaranteed at the same time. Since grafting is conducted at the high temperature of 20-35 DEG C, the application duration of the grafting method is long; grafting can be conducted from April to July every year, and at this temperature, callus between the bud slice and the stock grows quick.

The invention discloses a lawn produced from municipal sludge compost mixed matrixes and a preparation method of the lawn. The preparation method comprises the following steps that air-dried decomposed coarse municipal sludge compost is selected for screening, and the grain diameter of the screened compost ranges from 2 mm to 5 mm; the compost is mixed with any two of rice chaff, vermiculite and perlite, and the mixture is stirred evenly to obtain the mixed matrixes; the land is leveled; insecticide is sprayed; an isolation layer is laid; the isolation layer is evenly covered with the mixed matrixes; grass seeds are evenly sown and are covered with the mixed matrixes for 0.5 cm after seeding is completed; the mixed matrixes are covered with a sunshade net. By means of the preparation method, the quality of the lawn can be improved, production cost and planting cost can be lowered, and land and water resources can be saved; moreover, the water control effect can be consolidated, energy conservation and emission reduction can be promoted, a large amount of excess sludge generated in the sewage disposal process can be effectively eliminated, pressure from gradual deficiency of garden matrixes and unstable sources can be relieved, and therefore the preparation method is a sustainable sludge recycling method with extremely high application value.

The invention relates to a tissue culture and rapid propagation culture medium of Lvzhou No.1 grass. A culture medium formula is formed by combining a culture solution with a low salt concentration with a plant growth conditioning agent; by using the tissue culture and rapid propagation culture medium provided by the invention, an optimal plant axillary bud stem section is used as an explant; in a whole sterile culture process, only one culture medium is needed; the culture process is simple and feasible. In the culture medium, subculture and rooting induction are carried out synchronously and one-step seedling culture is realized. A seedling culturing period of Lvzhou No.1 grass tissue culture seedlings is shortened and industrial production is facilitated. The invention further relates to a one-step seedling culturing tissue culture and rapid propagation method of the Lvzhou No.1 grass; a multiplication culture process is a manner of multiplying the seedlings after the seedlings obtained by culturing stem section buds (with bud sections) in one step are chopped, and the multiplication coefficient is 3 to 5; no variation phenomenon is caused and no callus is formed in a rooting process; base parts of axillary buds are used for rooting and the transplanting survival rate is high.

The present invention discloses a new foliage bacillus fertilizer and its preparation method. Said foliage bacillus fertilizer component composition includes (by wt%) 20-4% of lactobacillus plantarum bacillus preparation, 20-40% of lactobacillus acidophilus bacillus preparation and 20-50% of water. Said foliage bacillus fertilizer can be used for presoaking seeds, and can be used for promoting plant growth.

The invention discloses a method for planting hawthorn and pseudo-ginseng in intercropping manner in stony desertification soil. The nature-made rock depression is expanded to a plantation pit in a size of 25-40cm*25-40cm and a depth of 30-40cm in the stony desertification area, and the nutrient soil of 15-20cm is arranged in the plantation pit. The nutrient soil comprises the following components by weight: 50-70 parts of river bottom sand, 15-25 parts of lake sediment, 85-120 parts of humic acid soil, 10-20 parts of bagasse, 5-15 parts of plant ash and 5-9 parts of attapulgite clay. The method also comprises the following steps: step 1, hawthorn seedling colonization, namely putting the hawthorn seedling in the plantation pit and using the nutrient soil for hilling planting; and step 2, pseudo-ginseng seedling colonization, namely planting the pseudo-ginseng seedling around the hawthorn seedling in the plantation pit.

The invention relates to a photo-conversion quantum dot which is of a core-shell structure. A core of the quantum dot is a silver indium selenium sulfur quantum dot, and a shell layer is a zinc sulfide layer. The photo-conversion quantum dot can convert high-energy photons without or having little photovoltaic effect into low-energy photons having efficient photovoltaic effect, photoelectric conversion efficiency of existing solar power generation systems is improved, and light can be collected; the photo-conversion quantum dot has potential to be applied in neutral-color transparent intelligent windows, and photovoltaic building integration is realized.

The invention discloses a parking lot afforestation device, providing an afforestation plan of realizing the parking lot greenery shield by projection means of using liana and installing greenery shelf. Aerological afforestation net frame is mounted by biological characteristics of dendrite of liana that grows upward and forward in a reptant manner. Root of the liana grows on ground, firstly processing vertically afforestation, after the dendrite growing to a certain height, the dendrite growing on the net frame arranged manually, forming shelf greenery shield for the parking lot, which avoids direct sunshine to vehicle and ground. The invention utilizes the ground of parking lot as precious afforestation resource, which increases afforestation amount of city. The greenery shield can protect the vehicle well, with obvious effect on heat island effect resistance and entironment improvement of the city.

The invention belongs to the technical field of petroleum processing, in particular to a stabilizer. The stabilizer comprises the following materials in parts by weight: 4-6 parts of organic tin, 4-6parts of lead salt, 3-5 parts of organic antimony, 3-5 parts of metal soap, 6-8 parts of a rare earth stabilizer, 6-8 parts of cadmium laurate, 3-5 parts of zinc laurate, 6-8 parts of bisphenol A, 4-6parts of 2,6-di-tert-butyl-p-cresol and 100-300 parts of distilled water. After adoption of a ratio, the stabilizer can be avoided from deactivation under direct sunlight by being put into a brown glass bottle, so that the shelf life of the stabilizer is prolonged; the rear earth stabilizer is added into the stabilizer, and the composite rear earth stabilizer is synthesized from carboxylate or fatty acid salt of a rare earth element as a main component and contains a proper amount of rare earth metal component; the stabilizer not only can replace lead cadmium salt-type and organic tin-type toxic stabilizers and the like, but also has very good heat stability, light stability, transparency and coloring power.

The invention provides a seeding planting technology for tamarix chinensis in the dredger fill original soil area. The seeding planting technology aims to solve the greening difficult problem in the sea mud dredger fill heavy saline and alkaline area, changes the original high-invest and low-benefit greening mode, takes the ecological engineering science and the natural vegetation evolutionary changes as the guidance, and utilizes the principle of 'suitable land planted with suitable trees (plants), and suitable land with suitable method' and the salt-tolerance performance of the tamarix chinensis. The seeding planting technology adopts the method that localized amendment is conducted on the dredger fill artificially, refers to the soil environmental conditions that the tamarix chinensis grow naturally under a wild state in a vacuum preloading area (according to the vacuum preloading technology, the surface fill sand shall be more than 30cm-50cm), that is, river sand is filled on the surface of the dredger fill so that a good microclimate condition is created for the seed germination of the tamarix chinensis, the tamarix chinensis can adapt to the large environment of the area when growing to be able to stand on the land, and the surrounding ecological environment can be improved. The seeding planting technology for the tamarix chinensis in the dredger fill original soil area is low in cost, fast in effect, sustainable and capable of providing strong technical support for the development and construction and the environmental improvement of the coastal areas.

The invention discloses a sun-shading device for a new energy automobile. The device includes a mounting box, wherein an opening inner sliding cavity and an opening outer sliding cavity are formed inthe mounting box; an opening device used for opening a sunshade cloth in the front-back direction is arranged in the opening outer sliding cavity in a sliding mode, the opening device comprises an opening motor fixedly installed between the inner top wall and the inner bottom wall of the opening inner sliding cavity, and two sets of opening threaded shafts which are symmetrical in the front-back direction are arranged on the opening motor in a rotating mode. The device is suitable for being installed on the roof of an automobile, the sunshade cloth is stored in the device when the automobile runs, the view of a driver cannot be shielded, and the running safety of the automobile is not affected; when the automobile needs to be parked under the sun for a long time, the sunshade cloth is unfolded by the device, the automobile body can be protected from being directly exposed to the sun, and rising of the temperature in the automobile is reduced; and a solar photovoltaic panel and a cleaning device corresponding to the solar photovoltaic panel are arranged in the device, so that solar energy is continuously converted into vehicle-mounted electric energy of the automobile, and consumption of petroleum by the automobile is greatly reduced.

The invention provides an air drying device for food processing, and belongs to the field of food processing equipment. A rotating disk is connected with a spindle of a first motor. A rotating supportis installed on the rotating disk. The number of fixing blocks is four and the four fixing blocks are fixed to the right sides of brackets of four rotating rods correspondingly. The rotating rods arehollow iron tubes. The number of balancing weights is four and the four balancing weights are fixed to the tail ends of first supports separately. A controller is fixed to the upper side of a workbench. The workbench is a rectangular iron plate. A draught fan is fixed to the left side of a fixing frame. The first motor is fixed to a first motor base. An encoder is installed on the right side of the first motor. According to the air drying device for food processing, the first motor is used for driving the rotating support to rotate so that food can be evenly air-dried; and moreover, a secondmotor is used for driving fan blades to rotate and simulate natural wind so as to accelerate the air drying process, and air drying quality and efficiency of the food are improved.

The invention provides a water seepage preventing cabin cover which comprises a cabin upper cover (1) and a cabin lower cover (2). An inner edge (8) is arranged at the bottom end of the cabin upper cover (1). An outer edge (6) is arranged at the top end of the cabin lower cover (2). The inner edge (8) is fixedly connected with the outer edge (6). A baffle (3) inclining downwards is arranged at the bottom end of the cabin upper cover (1). According to the water seepage preventing cabin cover, as the baffle is arranged, rainwater can be effectively prevented from entering a gap between the cabin upper cover and the cabin lower cover, the connecting portion of the cabin upper cover and the cabin lower cover can be prevented from being exposed to direct sunlight, and the service life of the cabin cover is prolonged.

The invention relates to the technical field of switching power supplies, specifically a dew-removing cooling switching power supply. The power supply comprises a housing, and the interior of the housing is provided with an integrated circuit board. The integrated circuit board is provided with a main circuit, a control circuit, a detection circuit, a protection circuit and an auxiliary power supply. The interior of the housing is also provided with a cooling fan for cooling, and the housing is provided with a heat dissipation hole for ventilation, a power input jack and a power switch for controlling the power input. The interior of the housing is also provided with sponge which is installed at the heat dissipation hole. The inner wall of the bottom of the housing is provided with a dew collection groove for collecting dew. The interior of the housing is fixedly provided with a fine pipe, wherein one end of the fine pipe is inserted into the dew collection groove, and the other end of the fine pipe is inserted into the sponge. The power supply provided by the invention can solve a problem that a conventional switching power supply cannot remove dew effectively, and can achieve the functions of dust collection and cooling at the same time.