191results about How to "Does not affect the effect" patented technology

The invention discloses a total variation-based self-adaptation non-uniformity correction method for an infrared focal plane. The method comprises the following steps of: firstly, calculating root mean squares in different directions of gradient approximately as the total variation, and calculating a standard deviation in a neighborhood of a window at the same time for control of an iteration speed; and secondly, correcting an infrared image in non-uniformity with the most fast gradient descent algorithm in combination with a traditional neural network algorithm. In the method, calculated quantity is reduced, an algorithm effect is not influenced, an influence of an edge variation on an ideally-expected image is reduced, therefore, a ''ghost'' effect is effectively reduced.

The invention discloses a medical catheter carrying a slow-release antibiotic coating and a preparation method thereof. The outer surface of a catheter body (1) is coated with an antibiotic slow-release layer (2), and the antibiotic slow-release layer (2) is a high molecular polymer combined with an antibiotic, preferably a polylactic acid-polyglycollic acid coating. The preparation method comprises the following steps: preprocessing the medical catheter; preparing an acetone solution containing polylactic acid-polyglycollic acid; preparing coating liquid; and settling the coating. The invention has the function of obviously lowering the originating rate of the relevant infection of the catheter. The catheter releases the antibiotic from the inside to the outside in a certain time, directly kills bacteria at the periphery of the catheter and solves the technical problem that the antibiotic can not resist high temperature.

The invention discloses a polymer emulsion interface agent for base layer coating treatment and a preparation method thereof. The polymer emulsion interface agent for base layer coating treatment comprises a component A and a component B. In use, the component A and the component B are mixed according to a weight ratio of 1: 1. The mixture of the component A and the component B is white paint. The component A comprises 0.1 to 0.5% of hydroxyethylcellulose, 0.2 to 0.9% of a dispersing wetting agent, 12 to 19% of quartz powder, 48 to 65% of styrene-acrylic acid ester polymer emulsion, 0.05 to 0.35% of an antiseptic, 0.01 to 0.2% of a mildew inhibitor, 0.05 to 0.25% of a multifunctional auxiliary agent, 0.05 to 0.55% of a thickening agent, 0.1 to 0.5% of an antifoaming agent, 0.2 to 0.7% of a film forming auxiliary agent and 18 to 35% of water. The component B comprises 20 to 38% of wollastonite powder, 15 to 35% of quartz powder and 38 to 55% of quartz sand. Through combining the component A and the component B according to a ratio, the polymer emulsion interface agent for base layer coating treatment has the characteristics of good cohesion and adhesion, high bonding intensity, good closeness, rough surface layer and good adhesiveness with putty.

The invention relates to an RFID application testing system and relates to the electronic technical application field. The RFID application testing system is a testing system which provides RFID technical application testing services for the majority of small and middle RFID and IOT enterprise and system integrators. The RFID application testing system includes a label performance testing system, an RFID label location deployment testing system, an RFID-based intelligent tray conveying and sorting testing system, an RFID-based intelligent packing container item conveying and sorting testing system, a single-item annular conveying testing system, an intelligent goods shelf testing system and a warehouse gate door data acquisition testing system. The RFID application testing system can provide RFID technical application testing services for the majority of small and middle RFID and IOT enterprise and system integrators and can carry out nearly 30 kinds of tests under a variety of scenes.

The invention discloses an intelligent goods shelf testing system, and relates to a device capable of checking goods shelf inventory automatically in real time and recognizing that goods are taken away from a goods shelf. The intelligent goods shelf testing system is especially suitable for large-scale storage and supermarket counters. The intelligent goods shelf testing system comprises a goods shelf enabling sorting to be carried out according to lamps, a radio frequency identification device (RFID) specially-used counter and an intelligent goods shelf testing master computer. The RFID specially-used counter comprises a counter body, a reader-writer and an antenna. The reader-writer installed in the RFID specially-used counter is connected with the intelligent goods shelf testing master computer through a network cable. The goods shelf enabling sorting to be carried out according to the lamps is connected with the intelligent goods shelf testing master computer through USB serial communication. An intelligent goods shelf testing control system is installed in the intelligent goods shelf testing master computer. The goods shelf inventory is checked automatically in real time with the utilization of the fundamental principle that a plurality of labels can be simultaneously read through wireless non-contact; therefore, the intelligent goods shelf testing system can help the background in replenishment and goods tallying actions in a targeted mode, so that the operation efficiency is improved.

The invention discloses a water-soluble fertilizer containing alginic acid and humic acid and a production method thereof. The method is characterized by mixing alginic acid and humic acid solution and then adding plant growth regulators to produce the water-soluble fertilizer containing alginic acid and humic acid. The produced water-soluble fertilizer contains 1-10g / l of alginic acid, 40-190g / lof humic acid and 1-5g / l of plant growth regulators. The method is simple, easy to operate and high in feasibility of implementation. The produced water-soluble fertilizer is stable in status and obvious in using effects. In particular, such crops as fruits and vegetables have high flower and fruit setting rates, and good and bright colors, resist drought and frost, are premature and appear on themarket ahead of time and have good mouthfeel. The water-soluble fertilizer is pure natural and environmentally friendly, which has stronger immunity and integrates nourishing, yield increasing and disease resisting.

The invention discloses water-soluble PU nubuck low-temperature foamex for synthetic leather, prepared by the following raw materials in percentage by weight: 30-40 percent of water-soluble polyurethane, 40-50 percent of water, 2-10 percent of low-temperature nubuck foam powder, 2-5 percent of organosilicon levelling agent, 2-5 percent of organosilicon antifoaming agent and 0.5-2 percent of water-soluble polyurethane thickener. The mixture ratio of each component of the water-soluble PU nubuck low-temperature foamex for synthetic leather is scientific and reasonable, and the components mutually coordinate and jointly act. The nubuck low-temperature foamex has the advantages of good film reforming property and firm adhesion, and coating is resistant to solvent, cold, hydrolysis and thermalageing. The original effect of the leather surface of a finished product prepared from the water-soluble PU nubuck low-temperature foamex can not be influenced; after the leather surface is treated bythe foamex, low-temperature foaming is carried out to produce nubuck leather, and therefore, the effect of the leather surface is unique; moreover, the synthetic leather has exquisite texture, good air permeability and excellent resultant effect of hand feeling, water proofing, adhesion and the like.

The invention discloses a preparation method of a composite alga fertilizer. The preparation method comprises following steps: step one, preprocessing alga to obtain alga particles; step two, dissolving alga particles by distilled water to obtain an alga colloidal solution; step three, carrying out enzymatic hydrolysis; step four, subjecting the mixed solution to centrifugation, collecting the supernate, placing supernate in a vacuum freeze-drying machine, and dehydrating the supernate to obtain alga powder; step five, preparing a strain fermenting liquid; and step six, slowly adding the strain fermenting liquid into the alga powder to form a fermentation heap, carrying out fermentation for 14-20 hours, pushing over the fermentation heap, building a new fermentation heap, repeating for 5-6times, and then paving the fermentation heap to obtain the composite alga fertilizer. The preparation method has the advantages that alga is processed by an enzymatic hydrolysis method, the effectivecomponents of alga such as nutrients, plant hormones, and the like can be maximally maintained; moreover, the alga colloidal solution is enzymatically hydrolyzed under an acidic condition, the effectof the enzymatic hydrolysis is better, the enzymatic hydrolysis quality is higher, the raw material utilization rate is increased, the production cost is reduced, and the production quality is improved.

The invention discloses a water-based PU brush surface conditioning agent for synthetic leather, which comprises the following materials by weight percent: 10 to 20 percent of water-based stoving varnish resin, 1 to 6 percent of water-based polyurethane, 60 to 70 percent of water, 5 to 13 percent of silicon dioxide matting agent, 0.5 to 2 percent of organic silicon flatting agent, 1 to 5 percent of organic silicon foam killer and 2 to 6 percent of water-based modified polyethylene wax emulsion. In the water-based PU brush surface conditioning agent for synthetic leather, water is taken as solvent to replace noxious solvents, such as dimethyl formamide and butanone, so that the water-based PU brush surface conditioning agent has the performances of non-inflammation, safety, environmental protection and cost saving, and resin has the advantages of good film reforming property, firm bonding, solvent resistance, cold resistance, hydrolysis resistance and thermosenescence resistance of coating, and the finished product made of the surface conditioning agent has unique brush effect, strong dermis effect, water resistance and good air permeability.

The invention relates to an energy-increased spun-bondedfilter material containing polypropylene / polyester and a preparation method of the energy-increased spun-bonded filter material. The filter material comprises three layers of fiber meshes bonded together, wherein the fiber meshes comprise a coarse-denier fiber mesh, an intermediate-denier fiber mesh and a fine-denier fiber mesh sequentially; fibers in the fiber meshes are sheath-core composite fibers; the coarse-denier fiber mesh, the intermediate-denier fiber mesh and the fine-denier fiber mesh are spun sequentially, stacked, then bonded for reinforcement and subjected to polished roller hot rolling, corona processing of electrets and winding, and the energy-increased spun-bonded filter material containing polypropylene / polyester double components is obtained. The filter material has fluffy and soft structure and high filter efficiency while maintaining lower resistance. Besides, the preparation method is environment-friendly, simple and feasible in process and suitable for industrial production.

The invention discloses a texture image compression method based on image similarities. The texture image compression method based on the image similarities comprises the steps that a texture image to be compressed is transformed into a plurality of tiles in a YCrCb color space, a code book and a code table of the texture image to be compressed are generated according to the similarities among the different tiles, then codewords in the code book are coded by adopting coding similar to Huffman coding, the code table is transformed into an index file according to coding results, and then the compression of the texture image is completed. According to the texture image compression method based on the image similarities, the effect of reconstruction image is not influenced, and the compression ratio of the texture image is improved to a certain extend. Furthermore, codewords in the code book are confirmed through two levels of judgment, incremental codeword generation is used in the first level, namely, comparison is carried out on the similarities of the current tile image and the codewords in the code book, comparison is carried out on the similarities of the current tile image and the adjacent tile images, and both the integral similarities of the texture tiles and the local similarities of texture are taken into consideration through the two-level comparison.

The invention provides a hot-pressing sintering curing method for arsenic sulfide slag. The hot-pressing sintering curing method comprises the following steps that firstly, the pH value of the arsenicsulfide slag is adjusted to be 1-7; the arsenic sulfide slag subjected to a neutralization reaction is dried and dehydrated; then sulfur powder is added, and after even stirring and mixing are conducted, vibrating compaction and briquetting forming are conducted; and finally, a formed arsenic sulfide slag block is placed in a hot-pressing sintering curing reaction device to be subjected to hot-pressing sintering curing so as to obtain the arsenic sulfide slag hot-pressing sintered block. According to the arsenic sulfide slag hot-pressing sintered block obtained by treating through the hot-pressing sintering curing method, the leaching toxicity of arsenic can be reduced by 90% or above, and the compressive strength of the cured block can reach 10 MPa or above. The hot-pressing sintering curing method is simple in treatment technology, low in cost and obvious in economic benefit and environmental benefit.

The invention discloses a simplified three-level space vector modulation method. The method comprises the following steps of (1) obtaining a reference voltage synthesizing vector according to the three-phase voltage of a control system; (2) determining a large sector which the reference voltage synthesizing vector belongs to; (3) determining a small sector which the reference voltage synthesizing vector belongs to (4) calculating the action time of the reference voltage synthesizing vector in the small sector; (5) arranging the switching sequence of every vector in the small sector which the reference voltage synthesizing vector; (6) calculating the duty ratio according to the switching sequence. According to the simplified three-level space vector modulation method, by deprecating 6 large vectors and dividing voltage vector space through the other 21 fundamental space vectors, the quantity of the voltage vectors and sectors can be reduced, the space complexity can be reduced, the algorithm running time can be effectively shortened, the running efficiency can be improved and popularization and application of the three-level space vector modulation technology can be facilitated.

The invention provides a modular automatic drawing output method and system. According to the method, the system, based on an obtained drawing template, determines a reference pattern position of a to-be-drawn three-dimensional model and drawing template information of a construction drawing corresponding to the three-dimensional model; the reference pattern position is taken as a reference of the three-dimensional model and parameter information of each drawn drawing output space module forming the three-dimensional model is marked; and based on an obtained drawing output instruction, a drawing version maintenance interface of a confirmation list containing each drawing output space module in the three-dimensional model is displayed, and based on confirmation information in the drawing version maintenance interface, a construction drawing correspondingly containing the parameter information of each drawing output space module in the three-dimensional model is stored. According to the modular automatic drawing output method and system, the problem of high possibility of construction drawing errors caused by excessively miscellaneous manual operations in the process of designing a three-dimensional model in the prior art is effectively solved.

The invention discloses a temperature and strain correlation-based bridge damage identification method. The method comprises the steps of 1) performing abnormal value removal on bridge health monitoring data and extracting a strain component influenced by temperature; 2) fitting temperature and strain component data by using a linear regression model, and extracting a corresponding regression coefficient; 3) performing normal check and normal conversion operation on the regression coefficient, and then performing statistics on a mean value mu and a standard deviation sigma; and 4) preprocessing latest monitoring data, performing fitting by using the linear regression model to obtain a regression coefficient, and according to a 3 sigma criterion, judging whether a bridge is damaged or not.The method is simple and efficient in principle, and does not involve excessively complex algorithms; a large amount of data (the required data directly comes from an existing bridge health monitoringsystem, additional equipment such as a sensor and the like does not need to be added, and the bridge operation cost is reduced) collected by the monitoring system can be effectively utilized; and thecontinuously accumulated monitoring data can further improve the effect of the method.

A multifunctional efficient tube type heating device belongs to the field of efficient multifunctional resistance furnaces. A combustion chamber (7) is arranged between an N (north) pole and an S (south) pole of an adjustable magnetic field (1), an electric furnace heating wire (11) is wound outside the combustion chamber (7), a ring-shaped condenser pipe (5) is arranged outside the electric furnace heating wire (11), a water inlet (16) is arranged above one end of the condenser pipe (5), a water outlet (17) is arranged below the other end of the condenser pipe (5), a fire-resistant heat insulating layer (2) is filled between the condenser pipe (5) and a furnace wall (13), and a temperature control thermocouple (3) is inserted into the fire-resistant heat insulating layer (2) and connected with a temperature numerical control intelligent instrument (9); one end of the temperature numerical control intelligent instrument (9) is connected with the electric furnace heating wire (11) through a voltage regulation device; the other end of the temperature numerical control intelligent instrument (9) is connected with an external power supply. The multifunctional efficient tube type heating device is efficient, energy-saving, accurate and portable, and can meet multiple functional requirements and obtain materials with unique structures.

The invention discloses a method for preparing an easily-cleared type volcanic mud mask and relates to a method for preparing a mask. The invention is to solve the problem that the volcanic mud mask obtained by the existing method is unlikely to daub and wash. The preparation method provided by the invention is as follows: firstly, preparing a mask sleeve: overlapping two pieces of mask papers with the same size and shape, laminating the two pieces of mask papers along the edge lines of the eye openings, laminating the two pieces of mask papers along the edge lines of the nose openings, laminating the two pieces of mask papers along the edge lines of the mouth openings, and laminating the two pieces of mask papers along the edge lines around the mask papers and only leaving an opening with size of 0.5cm to 1cm to obtain the mask sleeve; and secondly, placing the volcanic mud mask into the mask sleeve, and laminating the opening left on the mask sleeve. With the adoption of the volcanic mud mask prepared by the invention, washing can be avoided after the mask is applied while the effect of the volcanic mud mask is not influenced. The method is applied to the field of a cosmetic.

The invention discloses inflatable life-saving equipment, comprising an air bag and a passive sealing device, wherein the air bag comprises more than two independent inflation chambers, and a refuge cabin for one person to enter is arranged in the middle of the air bag; and the passive sealing device is arranged on the side face of the refuge cabin. When the inflatable life-saving equipment disclosed by the invention is used for escaping in water, the life-saving equipment is inflated, and the person opens an entrance to enter into the refuge cabin, so that the inflatable life-saving equipment floats on the water, and the person waits for rescuing; and the inflatable life-saving equipment is convenient and fast to inflate and is safe and reliable.

The invention discloses injection of mannite and glycerol, which contains mannite, glycerol and water for injection. Furthermore, the invention also discloses a method for preparing the injection, which comprises the following steps: taking the mannite and the glycerol, dissolving into the water for injection, filtering and filling. The injection of the mannite and the glycerol is clinically used for treating cerebrovascular diseases, brain trauma, cerebral tumors, intracranial inflammation and the diseases of acute and chronic intracranial hypertension, hydrocephalus and the like caused by other reasons. The injection of the mannite and the glycerol has the functions of lowering the intracranial pressure quickly and eliminating the hydrocephalus and can also avoid death because of acute renal failure caused by the injury of the kidney; the injection of the mannite and the glycerol suppresses the apoptosis of neural cells and achieves the function of protecting the brain; the function of lowering the intracranial pressure is stable and has long retention time; crystals occurring because of the change of the air temperature or in the processes of storage and transportation are eliminated; and the glycerol is used as a caloric agent and can improve and recover the energy metabolism of the important viscera of the heart, the brain, the kidney and the like during oxygen deficiency. The injection of the mannite and the glycerol is a very effective, stable and safe medicine for promoting urination and removing water clinically.

The invention provides a method and a device for link switching and a line card. The method comprises the following steps of establishing a link between a standby main board and the line card; and sending an indication message to the line card through the link between the standby main board and the line card under the circumstance that an active main board has a fault, wherein the indication message is used for indicating the line card to switch to the link between the standby main board and the line card. Through the method and the device for link switching and the line card, a problem that the correlation technique cannot quickly carry out link switching after system switching without affecting the business is solved, so that an effect of quickly carrying out link switching without affecting the business can be realized.

The invention discloses a method for preparing a seaweed fertilizer by taking Enteromorpha as raw material. The method comprises the following steps: S1, cleaning the Enteromorpha, and performing airdrying and smashing to obtain seaweed particles; S2, dissolving the seaweed particles into a seaweed colloid solution; S3, performing enzymatic hydrolysis on the seaweed colloid solution to obtain a mixed solution; S4, centrifuging the mixed solution, collecting supernatant, adding chitosan into the supernatant, mixing and putting the mixture into a vacuum freeze dryer for dehydration to obtain seaweed powder; S5, preparing strain fermentation broth; S6, slowly adding the strain fermentation broth into the seaweed powder with continuous stirring, and stacking into a fermentation heap; S7, overturning the fermentation heap, re-stacking into a new fermentation heap, and spreading the fermentation heap to form the seaweed fertilizer. The Enteromorpha is treated through an enzymatic hydrolysismethod, so that effective components such as nutrient elements and phytohormones in the Enteromorpha can be kept to the maximum extent, little damage is caused to the effective components in the Enteromorpha, and the effect of the fertilizer at a later stage is not influenced.

The invention discloses a training method of a personalized model of distillation-based semi-supervised federated learning, which adopts a knowledge distillation technology, and a client side can select a self-designed model architecture by uploading model prediction rather than model parameters, so that privacy information of the client side about the model is well protected, and the shared data and the local data of the client are used for training together, so that the generalization ability of the model is greatly improved. In addition, the aggregation scheme can perform dynamic aggregation according to the importance degree of knowledge provided by each client, so that the aggregated model prediction better fuses the model knowledge of the client. And after the server finishes aggregation, the model prediction distribution information of the public data is not the pseudo label information, so that the communication transmission efficiency is further improved by utilizing the mode.

The invention discloses a multi-color imitation marble decorative plate and a production method thereof. The production method comprises the steps that basal plane treatment is conducted, wherein dirt, dust and last hardening substances on a sample plate are cleared away, and honeycombed cavities and surface cracks on the sample plate are filled and leveled up; base coating is conducted, wherein a roller or a brush or a pneumatic spray gun is utilized to spray alkali-resistant transparent primer on the sample plate after the basal plane treatment, and the coating weight ranges from 0.13 kg / m2 to 0.15 kg / m2; middle coating is conducted, wherein the roller or the brush or the pneumatic spray gun is utilized to spray colorful base coat after the base coating, and the coating weight ranges from 0.2 kg / m2 to 0.35 kg / m2; water in water multi-color coating is conducted, wherein a dedicated spray gun for the water in water multi-color coating is utilized, and the coating weight ranges from 0.35 kg / m2 to 0.6 kg / m2. According to the production method of the multi-color imitation marble decorative plate, the living effect of the appearance of the multi-color imitation marble decorative plate is achieved; the durability and color retention of multi-color cast stone are stabilized; the spray repair is achieved, the effect is not influenced, the lightweight and safety are achieved, and the elasticity and crack resistance are achieved.

The invention relates to a preparation method and application of a fluorescent probe used for identifying hydrogen peroxide and belongs to the technical field of chemical analysis and detection. The molecular structure of the fluorescent probe is described in the specification. Maximum absorption wavelength of the probe molecule is 480nm, after the probe molecule acts with hydrogen peroxide (H2O2), fluorescence spectrum emerges at the intensity of 619nm and is continuously increased, larger Stokes shifts are shown up, self absorption of fluorescent lights can be reduced, and detection sensitivity is improved; and emission wavelength can reduce background fluorescent lights and light damage on living cells in a probe detection process in a red light region, and penetrating power of an organism for tissues is enhanced. The probe molecule has good linearity in a certain time and concentration range, strong hydrogen peroxide (H2O2) identifying capability and strong selectivity and antijamming capability, and the probe has important application value in the fields of biochemistry and the like.

The invention discloses organic water-soluble fertilizer and a preparation method and application thereof. The preparation method includes the steps of 1, preparation, wherein various pure natural food materials including bean pulp, milk powder, cinnamon, crustacea bone meal, magnesium oxide, milt, humic acid and molasses are blended with a biological fermentation agent and water according to a proportion to form a nutrient solution; 2, stirring, wherein intermitted air stirring is performed for 15 min every 1-5 h, then the mixture is put into a fermentation vat and subjected to standing and storing in a sealed mode for 7-35 d to be fermented, and then the organic water-soluble fertilizer is obtained; 3, application, wherein the application amount is 3-4 kg / mu if a flushing application mode is adopted, the application amount is 2-4 kg / mu if a sprinkling and dropping irrigation mode is adopted, the fertilizer should be diluted by 500 folds and applied according to the application amount of 1-3 kg / mu every time if a root irrigation mode is adopted, the fertilizer should be diluted by 800-1500 folds and applied according to the application amount of 0.5 kg / mu every time if a foliar spraying application mode is adopted, and meanwhile the fertilizer is applied one time every 10-15 d according to the growing period of crops.

The invention discloses a vertebral body expansion balloon catheter comprising a balloon, an outer tube, an inner tube and a support guide wire; a near-end of the balloon is fixed on an outer wall of the outer tube; the outer tube is communicated with the balloon and pressurizes for the balloon; the inner tube is installed inside the outer tube in a penetrating mode; the inner tube comprises a straight section and a far-end flexible bending section; the flexible bending section extends out from the outer tube and is fixedly connected with the far-end of the balloon; the support guide wire is slidingly contained inside the inner tube; the flexible bending section is kept straight when the support guide wire is inserted and returns bent when the support guide wire is extracted. The flexible balloon structure can effectively support a vertebral body cavity by expanding the balloon, and vertebral body height can be well restored by inserting one-side balloon conduit. Besides, the continuous control of the degree of curvature of the balloon can be achieved by controlling the degree of extraction of the support guide wire from the flexible bending section and associated control devices.

The invention relates to a fuel oil saving device of a vehicle, comprising two groups, i.e. a fuel oil magnetization processor and an oxygen increasing and supplementing device, wherein the fuel oil magnetization processor comprises two multi-gradient magnetization radiation areas, two stagnation areas and an output port, wherein each multi-gradient magnetization radiation area consists of a main body; each magnetic energy radiation area comprises an upper supporting plate, a lower supporting plate and a permanent magnet clamped between the upper supporting plate and the lower supporting plate, and the two magnetic energy radiation areas are arranged adjacently; the inlet end of the first magnetic energy radiation area is the first stagnation area, and a second stagnation area is positioned between the two magnetic energy radiation areas; the oxygen increasing and supplementing device comprises a space divider and an ozone generator, wherein the space divider comprises an air filter assembly, a fan assembly, a permanent magnet fastening end cover clamped between the upper supporting plate and the lower supporting plate, and the like and forms an integer with a shell; and a space divider assembly control power supply inside the ozone generator, a booster, a generating tube and a boosting pump are sequentially arranged on a base plate. The invention has high fuel oil saving efficiency and easy installation and debugging.

The invention relates to a vehicle electromagnetic anti-impact unit, belonging to a vehicle safe device, which is formed by a panel electromagnet 1, a baffle spring 2, a base electromagnet 3, an inching switch 4, a magnetic switch 5, and a vehicle power resource 6. When the vehicle is impacted in accidence, the panel electromagnet 1 via the baffle spring 2 can prolong the function time of impact force to reduce the impact force, while the panel electromagnet 1 and the base electromagnet 3 generates mutual exclusive magnetic force to prevent the vehicle being hurt by the impact force. The invention has simple structure, without changing the appearance and decoration of vehicle, but mounting several units to form the anti-impact system and protect the vehicle and people.