3612results about How to "Scientific and reasonable design" patented technology

The invention discloses a locomotive license automatic identifying method and a realizing device thereof for shooting video in real time under a complex background; wherein, the identifying steps include: (1) locating a movement multi-target locomotive body area; (2) capturing a candidate license area image; (3) capturing a real license edge point; (4) capturing the smallest license area; (5) dividing characters and removing non-character images;(6) normalizing the character images and extracting the original coarse gridding characteristics of the character images; (7) using a trained BP neutral network for realizing the accurate identification of the license characters. The device for realizing the locomotive license automatic method includes a pick-up device and a computer; the pick-up device is connected with the computer by an IEEE1394 cable. The invention is suitable for the automatic identifying method and the realizing device thereof for dividing and identifying the locomotive licenses which are not interfered by the shoot traffic video image quality under a complex background with good identifying effects to the characters.

The invention discloses a vehicle license plate character recognition method based on rough grid feature extraction and a BP neural network. The method comprises the following steps: (1). preprocessing a vehicle license plate image to eliminate various interferences and obtain a minimum vehicle license plate region; (2). segmenting the vehicle license plate characters by combining vertical projection and a drop-fall algorithm; (3). screening the segmentation results to eliminate interferences of vertical frames, separators, rivets and the like; (4). normalizing the characters according to the position of a centre of mass; (5). taking each pixel of a normalized characters dot-matrix as a grid to extract the original features of the characters; (6). designing the BP neural network with a secondary classifier according to the situation of the vehicle license plate; and (7). reasonably constructing a training sample database to train the neural network, and adjusting the training samples by the recognition effect to realize accurate recognition of the network. The method effectively eliminates the noise interference, quickly and accurately segments the characters, steadily and effectively recognizes Chinese characters, and realizes the balance between real-time property and accuracy in the whole recognition course.

The invention provides an unmanned aerial vehicle cruising and monitoring system for forest fire. The weight of the unmanned aerial vehicle is reduced, flight time is prolonged, an unmanned aerial vehicle cruising range is enlarged, route planning is carried out for fire monitoring, and an unmanned aerial vehicle flight control system is combined with a geographic information system. The route planning not only guarantees monitoring quality and monitoring full coverage but also considers the hardware parameters and the flight safety of the cruising unmanned aerial vehicle, a rotary head carries a thermal infrared imager and a colorful high-definition camera, the thermal infrared characteristics of the image of the forest fire are fully utilized, and an automatic monitoring and identification method for forest fire information is designed. Even if the forest fire monitoring distance of the unmanned aerial vehicle is long, fire characteristics can be accurately captured. A colorful high-definition image is compressed and transmitted back to a ground command post, a high-definition fire video image can be quickly transmitted to the ground, a fire position can be accurately reported, so that convenience is brought to the ground command post in accurately judging a fire situation and organizing people to fight the fire, and precious fire-fighting time is saved.

This invention discloses a sunlight collecting device composed of a two-dimensional tracer, optical collector, an indirect reflector, two-dimensional adjust reflector, reflecting mirror mounted outside of a window of a place necessary for collecting light, solar energy photo-voltaic battery, photosensitive sensor, coder and central controller. After the optical collector collects direct sunlight,the indirect reflector corrects it to be parallel light to be reflected to a definite place and reflected indoor by the reflection mirror. The device motion is controlled by the central controller and a coder is mounted on the operating motor to record the motor operation angle.

The invention provides a method of preparing low iron-containing quartz sand for photovoltaic glass from pyrite type quartzite and a pickling purification apparatus. The method comprises following steps: washing collected pyrite-containing quartzite, crushing, and preparing sand by wet method; subjecting prepared sand slurry to magnetic separation and screening; collecting sand slurry of 24 to 120 meshes, subjecting the sand slurry to fine-washing, gravity separation, and magnetic separation, and removing water; transferring dewatered sand into the pickling purification apparatus, adding a mixed acid solution, and performing circulating pickling, wherein the mixed acid solution is heated to 75 to 90 DEG C, and circulating pickling is preformed for 3 to 4h at the temperature of 75 90 DEG C; and removing the mixed acid solution, washing the sand with clear water until the pH value is 7, and then dewatering so as to obtain low iron-containing quartz sand. The method is advanced in technology; the apparatus is scientific and reasonable in design; operation is convenient; automation degree is high; production amount is large; product quality is stable; production cost is low; large-scaled production of low iron-containing quartz sand is realized; economic benefits and social benefits of enterprises are increased by scientific and reasonable development and application of pyrite-containing quartzite.

The invention relates to an elevator-integrated safety device, aiming at filling the gap of the prior art and combining the functions of an over-speed governor, a guide shoe, a safety gear and a safety guidance mechanism into an integrated mechanism which is arranged at the bottom of an elevator cage to realize the guidance and over-speed protection functions during the running process of the elevator. The safety device comprises a guiding device, a safety gear device including the safety gear and a lifting rod which is connected between a ratchet wheel and the safety gear, when being lifted to a certain stroke, the lifting rod can lead the safety gear to clamp a guide rail and stop the elevator, and the lifting rod appears as a bended rod or a rack, a shell and a base board. As an ideal elevator guidance and over-speed protection device, the elevator-integrated safety device of the invention has scientific and reasonable design, compact structure, largely saved well space, convenient site installation and debugging, simple maintenance, low manufacturing cost and safe and reliable use.

The invention relates to automatic multifunctional continuous processing online equipment for a metal circular tube bar. The automatic multifunctional continuous processing online equipment comprises an automatic preparation mechanism, a saw cutting mechanism, an automatic chamfering machine detection mechanism, an automatic cleaning mechanism and a pipe fitting conveying mechanism, wherein the tail part of the automatic preparation mechanism is connected with the saw cutting mechanism; the automatic chamfering machine detection mechanism is connected to the back side of the saw cutting mechanism; the automatic cleaning mechanism is connected to the back side of the automatic chamfering machine detection mechanism; and the pipe fitting conveying mechanism is connected to the back side of the automatic cleaning mechanism. The automatic multifunctional continuous processing online equipment has the beneficial effects that the cut-off, chamfering, detection and inner and outer wall cleaning of pipe fittings are finished automatically in one step without gradually operating on a plurality of machine stands, so that the production efficiency is increased, and the labor and cost are saved; and the machine stand is compact in structure, and is scientific and reasonable in design, has the outstanding advantages of high automatic degree, easiness in operating, running stability, high processing accuracy and the like, and is highly-innovative composite processing equipment integrating automatic cut-off, chamfering, detection and inner and outer wall cleaning.

The invention relates to the technical field of cartography and geography information systems, and specifically to a DEM-based river valley cross-section morphology algorithm. The algorithm includes the following six steps of (1) pre-processing data based on a DEM; (2) calculating sectional river network data; (3) calculating river network vertical data; (4) drawing a contour line of the valley bottom of a river valley; (5) calculating a width value of the valley bottom; and (6) drawing a profile map of the cross-section morphology of the river valley. The important quantitative indictors for describing the morphology of the river valley can be obtained by calculation according to the invention, which are the contour line of the valley bottom of the river valley, the width value of the valley bottom of the river valley and the profile map of the cross-section morphology of the river valley. These quantitative indicators can reveal the formation and development of a river, the construction situation of a valley landform and so on, and are of great theoretical significance for the study of the classification and management of rivers, the prediction of a river blocking probability of the landslide mass, the calculation of ground motion parameters and the like.

The invention discloses an anti-blocking sewer pipeline which comprises a pipeline. A mounting disc is fixed to the inner wall of the pipeline, a first mounting opening and a second mounting opening are formed in the mounting disc, a fixing pipe is mounted in the first mounting opening, a filter screen is mounted in the second mounting opening, a slide bar is slidably arranged in the fixing pipe,a flange is arranged on the outer wall of the end, which is positioned in the fixing pipe, of the slide bar, a return spring is arranged between the flange and the inner bottom wall of the fixing pipein a fixedly connected manner, the lower end of the slide bar extends out of the fixing pipe, and a mounting plate is fixed onto the inner wall of the pipeline. The anti-blocking sewer pipeline has the advantages that water pressures can be increased after the inside of the pipeline is blocked, the slide bar can be squeezed to downwardly move, a first movable rod and a second movable rod furthercan be driven to move, blocking materials on the filter screen further can be scraped by a scraping plate and can be pushed into a collecting groove to be collected, accordingly, the smoothness of thefilter screen and the pipeline can be recovered, the anti-blocking sewer pipeline is convenient to clean, and normal family life can be guaranteed.

The invention provides an adjustable omnibearing automatic folding and carton sealing machine. The adjustable omnibearing automatic folding and carton sealing machine comprises a carton sealing machine body, a carton clamping mechanism and a carton drive unit. The carton drive unit is transversely and symmetrically mounted on a rack and driven by a built-in motor. Machine cores are mounted above the carton drive unit, in the middle of the carton drive unit and at the symmetric positions of the two sides of the carton drive unit, and therefore middle sealing of carton tops and carton bottoms and corner sealing of cartons are achieved, and the sealing effect of packaging materials is improved. The carton clamping mechanism is mounted on a carton conveying belt, and a gear and gear racks are pushed by a both-way air cylinder to achieve actions of carton clamping, carton loosening and the like. The adjustable omnibearing automatic folding and carton sealing machine is simple in structure, ingenious in concept and high in work efficiency, and manpower is effectively saved. According to the rubber belt carton sealing machine, when the carton conveying speed is higher than the carton sealing speed, the cartons are clamped and loosened through the part of the carton clamping mechanism, and therefore the cartons are prevented from passing through a cover folding mechanism too densely.

The invention discloses a multifunctional fused polypeptide as well as a preparation method and application thereof, belonging to the field of bioengineering pharmaceuticals. The multifunctional fused polypeptide is a combination of one or any multiple of six polypeptides and can be used for preventing and treating solid tumors, rheumatoid arthritis and neovascular eye disease. The multifunctional fused polypeptide is prepared by adopting an artificial synthesis method and is characterized in that angiogenesis is restrained by restraining vascular endothelial cell proliferation and migration, and subsequently the angiogenesis-related diseases, such as solid tumors, rheumatoid arthritis and neovascular eye disease are treated.

A nano-class composite wooden material for plate, tube, or section is proportionally prepared from laminar silicate, high-molecular resin, natural plant fibers, inorganic filler, and chemical assistant through proportional mixing, and extruding out or injection moudling. It is possible to granulate before it is shaped.

The invention provides a paving machine for flat surface oriented structure shaving boards, and relates to a paving device of a production line assembly molding section for manufacturing bamboo or wood oriented structure shaving boards. The paving machine for the flat surface oriented structure shaving boards is formed by combining a plurality of sections of paving heads, and is characterized in that: the paving heads include a head end surface layer paving head, a tail end surface layer paving head and more than three sections of odd section middle paving heads, wherein each middle paving head is formed by arranging a longitudinal paving head and a transverse paving head in a crosswise mode; an application glue is uniformly paved on the head end surface layer paving head and the tail end surface layer paving head, and weighed wood or bamboo fines are arranged on the head end surface layer paving head and the tail end surface layer paving head; the application glue is uniformly paved on the middle paving head, and weighed crisscrossed wood sheets or bamboo sheets are arranged on the middle paving head; the paving heads are connected with each other through connecting plates and connecting bridges; and a press roller is arranged between the longitudinal paving head and the transverse paving head. The paving machine for the flat surface oriented structure shaving boards has the advantages of scientific and reasonable design, compact structure and high production efficiency, and realizes the flat surface and the pavement mechanization of middle crisscross plate blanks.

The present invention relates to food producing technology, and is especially making process of fermented plant fiber and protein food. The fermented plant fiber and protein food is made with soybean, peanut, coffee bean, rape, nut and / or nut residue containing plant fiber and protein as material, and through regulating water content to 60-85 %, cooking, fermenting through inoculating some bacterial seed, crushing the fermented product, seasoning and further treating to obtain different types of fermented plant fiber and protein food. The process is simple and feasible, and the food product has complementary and easy-to-absorb nutrients.

The invention relates to a numerical control modeling flower-carving machine for vertical type art pottery. The numerical control modeling flower-carving machine is characterized by comprising a computer, a controller and a main machine, wherein the controller is arranged between the computer and the main machine; the main machine comprises a machine base, a workpiece mounting device, an X-axis working system, a Y-axis working system and a Z-axis working system, the workpiece mounting device and the Y-axis working system are arranged on the machine base, the X-axis working system is arranged on the Y-axis working system, and the Z-axis working system is arranged on the X-axis working system; and a spindle motor is further arranged on the Z-axis working system, and a carving knife is arranged at one end of the spindle motor and linked with the spindle motor. The numerical control modeling flower-carving machine for the vertical type art pottery can improve the modeling efficiency of the art pottery and the labor production efficiency, and simultaneously, pottery shape varieties of the art pottery are further enriched.

The invention discloses a multi-physical fused fire monitoring system and method thereof for predicting fire probability of occurrence. The monitoring system comprises a point type smoke sensing detector, a point type temperature sensing detector, a line type beam smoke sensing detector, an air-breathing smoke sensing fire detector, a cable line type temperature sensing detector, a cable multi-point type temperature detector, an in-place module, a first station layer switch and a cable fire monitoring early-warning system server. The method comprises the following steps: step one, orderly performing initialization, denoising and normalization on sensor data; step two, initializing a feature layer, selecting a random input weight beta and an output target T to form an input matrix H; step three, processing the feature layer data in batch, performing weight iteration after the initialization; step four, making the final judgment through an algorithm; and step five, judging that the fireoccurs and giving an alarm if a fusion result is greater than a set threshold, or repeating the steps 1-4. Through the system and method disclosed by the invention, the false alarm and the failed alarm of the fire can be effectively reduced, and the accuracy of the fire prediction can be greatly improved.

The invention discloses a flight planning method for an airborne synthetic aperture radar. The method comprises the following steps: selecting an azimuth angle corresponding to a mountain shadow image having the smallest shadow as a flight direction; dividing aerial photographic zones according to the range of elevation changes of DEM so as to allow the values of elevation changes of DEM in a same aerial photographic zone to be in a range of 1 / 6 to 1 / 4 of flight height; laying flight routes in each aerial photographic zone according to results of the aerial photographic zones. According to the invention, shadows and the phenomenon of layover on an image of the synthetic aperture radar can be maximally reduced, which enables information content of the image of the synthetic aperture radar to be increased and the image to be easier to interpret; flight planning is scientific and reasonable and can effectively reduce cost for aerial photography and enhance efficiency of aerial photography.

The invention provides a belt type carrier-based aircraft booster system and a decentralized energy storage and concentrated random boosting working method. The system comprises a boosting module assembly, a return module assembly, a runway module, a slide shuttle module and a controller module, wherein the boosting module assembly consists of more than one boosting module which is arranged below the runway module; the boosting module comprises a T-shaped box body, motors, a transmission shaft, a clutch, a brake and a pedestal; the bottom of the T-shaped box body is fixed to the middle part of the pedestal; the motors are fixedly arranged on the pedestal and are positioned on the two sides of the T-shaped box body; the transmission shaft penetrates through the middle part of the T-shaped box body through a bearing pedestal; the two ends of the transmission shaft are provided with the clutch and the brake respectively; a driven part of the clutch and the brake are fixed to the transmission shaft; a driving part of the clutch is connected with the belt pulley; the belt pulley is connected with the transmission shaft through a bearing; the outer circle of the belt pulley is connected with the belt pulley at the motor shaft end through the belt; and the two ends of the folded transmission belt are fixed on the transmission shaft in the middle of the T-shaped box body through belt pressing plates. The system has the characteristics of simple structure, easiness in machining, transportation, mounting, debugging and maintenance, high modularization and the like, and is a piece of optimal equipment for an aircraft carrier.

The invention provides a robot with intelligent follow-up function, comprising a display screen module, a camera module, a drive module, an ultrasonic ranging module and a mobile robot; the display screen module, the camera module, the drive module and the ultrasonic ranging module are arranged respectively on the ARM development board; the ARM development board is mounted on the mobile robot; the display screen module and the camera module are mounted at a head of the mobile robot and used to recognize a target object. The ultrasonic ranging module is mounted right below the camera module and the display screen. The robot has the advantages that the robot is scientific and reasonable in design, humanized and low in cost; the robot can turn 2360 degrees and follow up by searching for a target; the robot may be used in intelligent follow-up for walking function products such as household accompanying products, intelligent trolley cases, intelligent baby carriers and intelligent seats; the robot using ultrasonic ranging technology is insusceptible to external signals and is high in measuring precision.

The invention relates to a method for depositing a functionally-graded nano-multilayer coating on the surface of a steel workpiece and a product comprising the functionally-graded nano-multilayer coating and particularly discloses the method for depositing the functionally-graded nano-multilayer coating on the surface of the steel workpiece and the functionally-graded nano-multilayer coating deposited on the surface of the steel workpiece. The invention further relates to the product. The product comprises the steel workpiece and the functionally-graded nano-multilayer coating which is deposited on the surface of the steel workpiece and can cover at least part of the surface of the steel workpiece. The functionally-graded nano-multilayer coating comprises a Cr base layer deposited on the surface of the steel workpiece, a CrN transition layer deposited on the Cr base layer, a Cr(C,N) gradient layer deposited on the CrN transition layer, and a (Cr,Al,Si)(C,N) surface layer deposited on the Cr(C,N) gradient layer. Gray black and gun black are the main colors of the functionally-graded nano-multilayer coating; the overall thickness of the functionally-graded nano-multilayer coating is 3-5 microns; and the surface hardness value reaches HV 2400-3600. The functionally-graded nano-multilayer coating has the high degree of finish, high combining strength and high surface hardness and is good in wear resistance and corrosion resistance.

The invention provides an automatic early warning fire extinguishing method for preventing a vehicle from spontaneously combusting. The inside of an engine case is provided with a central processing unit, a temperature sensor, a gas sensitive sensor, a laser probe, a photoelectric smoke sensor, a direct current over-current protector, a power relay, an oil circuit switch and a fire extinguisher. The central processing unit is connected with the temperature sensor, the gas sensitive sensor, the laser probe, the photoelectric smoke sensor, the direct current over-current protector, the power relay, the oil circuit switch and the fire extinguisher through a data wire to form a detection early warning fire extinguishing system; the outside of an oil supply pipeline which is connected with an engine is covered with a transparent plastic pipe; an oil absorption discoloration flame retardant material is filled between the oil supply pipeline and the transparent plastic pie to form an oil supply pipeline protection structure; and a brake oil tank and an engine oil tank which are arranged at the periphery of the engine are isolated through a flame retardant plate. The automatic early warning fire extinguishing method has the advantages that: the design is scientific and rational; the method gives priority to preventing the pipeline from oil leakage and short circuit, and is supplemented by the passive fire extinguishing; and even though the spontaneous combustion is caused by the fire of the circuit after the oil leaks, the central processing unit can cut off the power relay and the oil circuit switch as soon as possible, so the loss of the spontaneous combustion is minimized.

The invention discloses a wireless charging coil guiding and aligning device and a wireless charging coil guiding and aligning method for an electric automobile. The wireless charging coil guiding andaligning device comprises a ground launching device, a vehicle-mounted receiving device, an image positioning system, a magnetic field excitation system and a magnetoresistive sensor group. The technical problem that it is easy to fail in an aligning operation of the electric automobile as guiding data can be acquired only by drawing the electric automobile close to a magnetic field excitation source in the related technology is solved by acquiring a precise position relationship between a launching coil and a receiving coil by way of image processing of a look-around camera when the electricautomobile is close to a parking spot or just enters into the parking spot and planning a travelling path to guide a driver or a parking system to align the coils. On the other hand, the magnetoresistive sensors are very high in sensitivity and detection precision, can provide high precision coordinate analysis within the acting distances of the magnetoresistive sensors, and finally align, examine and verify the coils, so that the coil aligning correctness and reliability of the coils are also improved.

The invention relates to a board drawing mill. The board drawing mill is characterized in that the upper end face of a frame is provided with a board conveying system driven by a transmission motor which is arranged on the lower part of the frame. Pressing rolls and steel brushes are evenly arranged on the upper end face of the frame which is vertical to a conveyer belt. Each of the mounting rack of the pressing rolls and the steel brushes is provided with a controlling device which can adjust the distance between the pressing roll and the conveyer belt. The steel brushes are all driven by a steel brush motor which is fixedly arranged on the lower part of the frame. The board drawing mill has the advantages that the design is scientific and reasonable, the drawing mill can effectively shorten the work time and improve working efficiency, and the industrialization production of the board drawing mill is easily to be accomplished. The board drawing mill takes place the traditional manual drawing method, has good drawing effect, increases the meridian effect of the board surface, makes the thread much more stereoscopic, natural and so on.

The invention relates to a hydraulic cylinder with a buffering function. The hydraulic cylinder with the buffering function comprises a cylinder body, and both ends of the cylinder body are provided with a cylinder cover and a cylinder bottom respectively in a sealed mode; the inside of the cylinder cover is coaxially and slidingly provided with a piston rod in a penetrating mode, and one end of the piston rod is fixedly provided with a piston; both end walls of the cylinder body are provided with an oil inlet and an oil outlet respectively. The hydraulic cylinder with the buffering function is characterized in that one end portion of the piston, which corresponds to the cylinder bottom, is fixedly provided with an elastic member. The hydraulic cylinder effectively buffer the impact force of the piston onto the cylinder bottom through an elastic rubber cushion fixedly mounted on the end surface of the piston, and meanwhile, is simple in structure and low in cost. The hydraulic cylinder with the buffering function is simple in structure, easy to implement and scientific and reasonable in design, and can achieve good buffering effects without increasing existing costs.

The invention relates to a product front face and back face appearance vision detecting device. According to the purpose, the provided device can automatically finish front face and back face detection, feeding and discharging of magnetic materials and also has the beneficial effects of being simple in structure and convenient to use. According to the technical scheme, the product front face and back face appearance vision detecting device is characterized by comprising a rack, a feeding conveying belt, a first detection table, a second detection table and an automatic overturning mechanism; the feeding conveying belt is arranged on the left side of the top of the rack in the front-back direction, the first detection table is arranged on the right side of the feeding conveying belt, the second detection table is arranged on the right side of the first detection table, and the automatic overturning mechanism is arranged between the first detection table and the second detection table in the left-right direction.

The invention relates to an indigenous microorganism activation and exogenous microorganism intensified oil production method in an offshore oilfield, which belongs to the technical field of producible oil index improvement, and includes the following steps: firstly, preparation of exogenous microorganism bacterial liquor: beneficial microorganisms separated from an oil deposit stratum are subjected to enrichment culture; secondly, preparation of indigenous microorganism activators: the mass percent of components are: 0.25%-0.5% byproduct molasses in sugar industry, 0.1%-0.2% byproduct corn steep liquor of corn starch, 0.2%-0.4% sodium nitrate and 0.1%-0.3% phosphate; and thirdly, underground activation of an indigenous microflora: the following stages are included: the first stage, exogenous microorganism bacterial solution is injected to improve amount of functional microorganisms and provide nutrition substrates for growth of anaerobic bacteria, and the second stage, indigenous microorganism activators are injected in the anaerobic part of a stratum to improve the oil recovery efficiency. The method has the advantages of simplicity in operation, strong suitability, no harm to an oil-bearing sand, zero pollution, improved recovery efficiency and the like.

The invention provides a forestry health evaluation system based on aerial remote sensing. The system adopts three indexes of tree density, tree growth form and vegetation layer temperature to evaluate the health condition of a forestry, the forest health conditions are analyzed and evaluated from different angles, the three indexes can be used independently, and two or three of the three indexescan be used comprehensively, so that the forestry health research and evaluation capacity is improved. The unmanned aerial vehicle and the 3S technology are combined, so that the innovation speed of the evaluation method is increased, the quantitative research of the healthy forestry is promoted, and the relations among the evaluation indexes are balanced and known deeply, and a perfect forestry health evaluation system is established. The unmanned aerial vehicle is specially designed for the forestry health evaluation system and can obtain the data needed by multiple evaluation indexes at thesame time, an unmanned aerial vehicle flight control system and a geographic information system are combined to fully utilize the geological landform characteristics and the geographic information data of a cruise area, the cruise path design is scientific and reasonable, and the advantages of the unmanned aerial vehicle for evaluating the forestry health are fully exerted.

The invention relates to a method for directionally regulating and controlling indigenous microbial flooding of an oil reservoir and belongs to the technical field of improvement on crude oil recovery rate. The method for directionally regulating and controlling the indigenous microbial flooding of the oil reservoir is characterized by comprising the following steps of: firstly, activating hydrocarbon oxidizing bacteria of a near wellbore zone; injecting an aerobic system activation agent into the near wellbore zone; directionally activating the hydrocarbon oxidizing bacteria of the near wellbore zone; and secondly, activating anaerobic fermentation bacteria at the deep part of the oil reservoir, injecting an anaerobic system activation agent into the deep part of the oil reservoir, directionally activating the anaerobic fermentation bacteria, activating methanogen to generate gas by using metabolite of the anaerobic fermentation bacteria and improving the crude oil recovery rate through beneficial metabolic products of microorganism. The method disclosed by the invention has the advantages of simple process, directional activation, convenience in operation, low cost, economy, practicability, no toxicity, no harm, no nutrient waste, wide application range, facilitation for large-scale application of a mine filed and the like.