33results about How to "Adaptive characteristics" patented technology

The invention discloses a mobile secret communication method based on a quantum key distribution network. The method includes the steps that a mobile terminal registers to have access to the network, and the binding relationship between the mobile terminal and some centralized control station in the quantum key distribution network is built; after communication service is started, the mobile terminal participating in the communication applies for a service key from the quantum key distribution network; the quantum key distribution network obtains the addresses of all centralized control stations participating in service key distribution in the communication, and a service key generation centralized control station is assigned according to the current state indicators of all the centralized control stations; the service key generation centralized control station generates the service key needed by the communication and distributes the service key to the mobile terminal participating in the communication; the mobile terminal participating in the communication uses the service key, and secret communication is performed through the original data link of the communication service of the class. According to the method, the existing scheme in the industry is improved in the service key generation link and the key relay link, and the problem that when there are lots of relay nodes, key arrival lags behind, and the quality of service is influenced is solved.

The invention discloses a design method of a combined wing section blade of a horizontal shaft tidal current energy water turbine. The method comprises the steps of researching the hydrodynamic performance of a conventional wing section and the hydrodynamic performance of a bionic wing section separately, combining a conventional blade wing section with the bionic wing section according to the function of all blade elements in the blade, and designing out a combined wing section blade which is superior in performance; obtaining a three-dimensional digital model of a fish fin, selecting section contours of different positions of the fish fin as bionic fish-fin wing sections, selecting a bionic fish-fin wing section through analysis software, exporting the bionic fish-fin wing section and required two-dimensional coordinates of the conventional wing section, optimizing blade elements of the designed blade, obtaining parameters of each blade element, making the bionic wing section and the required conventional wing section correspond to the blade elements, converting the three-dimensional coordinates of the wing section into three-dimensional coordinate data, importing the three-dimensional coordinate data into three-dimensional design software, conducting setting-out treatment, and finally generating the combined wing section blade. By means of the design method, the hydrodynamic performance of the combined wing section blade is made to be superior, and the energy-obtaining efficiency of the water turbine is remarkably improved.

The invention discloses a fuzzy control method for a high-frequency high-voltage power supply for electrostatic dust collection. The fuzzy control method mainly comprises the following steps: 1) converting an output voltage of the high-frequency high-voltage power supply for electrostatic dust collection into a corresponding voltage signal through a voltage acquisition circuit, transmitting to an A / D (analog / digital) conversion circuit of a DSP (Digital Signal Processor) chip to become digital quantity, comparing with a preset voltage quantity so as to judge whether flashover occurs, thus obtaining a voltage deviation and voltage deviation change rate through the DSP chip; 2) calculating a corresponding control signal through a DSP according to the voltage deviation and voltage deviation change rate and converting to a corresponding PWM (Pulse-Width Modulation) duty cycle, outputting a PWM wave with variable duty cycle to a driving circuit of a dust collection power supply through a PWM output circuit, thus realizing the control on the output voltage of the dust collection power supply. According to the fuzzy control method, the high-frequency high-voltage power supply for electrostatic dust collection is simple and convenient to control, the spark control rate is optimal, and the fuzzy control method is well adaptive to the characteristics of non-linearity, variability and complexity in working.

The invention relates to a gas protection device, and in particular relates to a local inert gas protection device for the laser deposition repair of metal parts, belonging to the technical field of laser processing. The local inert gas protection device is compact in structure and stable in performances, can meet the space requirement of test installation, and is low in design and manufacture costs, simple and practical; a stand column of a movement executing mechanism at the upper end of a coaxial powder feeding nozzle is connected with the to-be-repaired part of a titanium alloy part by a soft seal cover. Therefore, a locally sealed flexible atmosphere protection chamber is formed between the part and the stand column, and an inert gas inlet, an inert gas outlet and interfaces of various gas sensors are reserved in the soft seal cover, so that the contents of all gases in the sealed atmosphere chamber can be conveniently detected, the whole titanium alloy part can be repaired in the presence of the purer inert gas, and a better laser repair effect can be further achieved.

The invention discloses a multi-wavelength optical fiber sensor based on a Fabry-Perot cavity and relates to the optical fiber sensor. The invention provides the multi-wavelength optical fiber sensor based on the Fabry-Perot cavity, which can overcome environmental vibration, realize high-speed real-time measurement, significantly simplify the structure of the sensor and reduce the cost of the sensor, and is provided with a multi-wavelength narrow-band coherent light source, an optical fiber wide-band coupler, an F-P (Fabry-Perot) cavity type sensing head, a photoelectric receiver with narrow-band filtering and an amplifying circuit. The multi-wavelength narrow-band coherent light source is coupled by at least two narrow-band light sources, the optical fiber wide-band coupler is connected with the multi-wavelength narrow-band light source, the optical signal output end of the optical fiber wide-band coupler is connected with the F-P cavity type sensing head, reflected light of the F-P cavity type sensing head is sent to the photoelectric receiver with the narrow-band filtering, and the input end of the amplifying circuit is connected with the output end of the photoelectric receiver with the narrow-band filtering.

Disclosed is a mobile secret communications method based on a quantum key distribution network, comprising the following steps: a mobile terminal registering to access the network and establishing a binding relationship with a certain centralized control station in the quantum key distribution network; after a communication service is initiated, the mobile terminals participating in the current communication applying for service keys from the quantum key distribution network; the quantum key distribution network obtaining addresses of the centralized control stations participating in service key distribution during the current communication, designating a service key generation centralized control station according to a current state indicator of each centralized control station; the service key generation centralized control station generating service keys required in the current communication and distributing the keys to the mobile terminals participating in the current communication; the mobile terminals participating in the current communication using the service keys and performing secret communication through an original data link of such a communication service. The present invention makes improvement to the existing solution of a service key generation phase and a key relay phase, and solves the problem that the service quality is affected when there are a large number of relay nodes and after the arrival of the key lags.

Belonging to the field of feed, the invention discloses a composite sheep feed and a preparation method thereof. The composite sheep feed comprises the following raw materials by weight: 60-70 parts of corn flour, 15-25 parts of peanut meal, 3-12 parts of rice bran, 4-12 parts of cottonseed meal, 3-9 parts of oat, 4-10 parts of soybean meal, 3-9 parts of millet, 2-8 parts of alfalfa meal, 1-3 parts of salt, 1-9 parts of semen raphani, 2-8 parts of coriander seed, 3-9 parts of carbonized sanguisorba root, 2-8 parts of cassia twig, 1-5 parts of perilla stem, 4-8 parts of magnolia officinalis, 3-9 parts of Fructus Arctii, 1-5 parts of Semen Alpiniae Katsumadai, and 4-10 parts of lotus leaf. The composite sheep feed prepared by the method provided by the invention has scientific formula and rich nutrition, can adapt to the growth and physiological characteristics of sheep, meets the nutritional components required by growth of sheep, promotes digestion and absorption, and also can enhance the immunity and resistance of sheep.

The invention discloses a mechanical grate type single-furnace garbage gasifying incineration system which comprises a gasifying incinerator, a cyclone combustion chamber and an air supply system, wherein the gasifying incinerator comprises a feed hopper and a furnace body; a stockpile sealing segment is arranged between the feed hopper and the furnace body; the upper end of the furnace body is arched and provided with a first flue gas outlet; and the cyclone combustion chamber is used for secondary combustion and is provided with a flue gas inlet connected with the first flue gas outlet. A garbage disposal method comprises the following steps: Step A, starting and drying the incinerator; Step B, burning garbage in a furnace chamber; Step C, realizing continuous garbage gasifying incineration disposal; and Step D, shutting down the mechanical grate type single-furnace garbage gasifying incineration system after the garbage and garbage residues burn out. By the use of the mechanical grate type single-furnace garbage gasifying incineration system, large-scale continuous garbage gasifying incineration disposal can be realized, the garbage disposal capacity and the garbage transport capacity are higher, the heat recovery efficiency is high, and the emission of pollutants is effectively reduced.

The embodiment of the invention discloses a page display method and device, electronic equipment and a computer readable storage medium. The method comprises the steps of determining a preset condition in response to a page display request; wherein the preset condition comprises a user type; determining a target page layout mode according to the preset condition; and displaying the user page according to the target page layout mode. By means of the mode, different page layout modes can be selected based on some actual conditions, particularly, different page layouts can be correspondingly selected for different user types, the user page can better adapt to the characteristics and habits of a user, and better service is provided for the user.

The invention discloses a machining method of a vacuum booster shell of a magnesium-aluminum alloy. Proper raw materials are selected; pressing force P in each drawing procedure of workpieces and pressing force P' in each shaping procedure of the workpieces are precisely calculated; then, analog models are built in analysis software for simulation analysis to determine precise deformation in eachpunching procedure; punching molds in each procedure are manufactured according to analysis results for trial production and adjustment according to punching conditions until qualified products are produced; and then, the large-batch punching production is performed. The machining method can guarantee machining of high-quality magnesium-aluminum alloy booster shells, and realizes lightness of thebooster shells; and the magnesium-aluminum alloy shells produced by the method are high in yield, so that the product production cost is greatly reduced. The invention further discloses a punching mold structure of the shells.

The invention discloses a dam upstream piping port quick blockage device and a method. The dam upstream piping port quick blockage device comprises a bundle-shaped variable section drying water-absorbent resin, a traction umbrella, a plastic sealing bag, a geotechnical cloth bag, a balloon and the like; the quick blockage device is firstly used for searching and detecting a piping inlet; after the traction umbrella is sucked in a piping channel, the bundle-shaped variable section drying water-absorbent resin is gradually pulled into the piping channel, and is finally clamped at the piping inlet; the plastic sealing bag and the geotechnical cloth bag are cut off; and water is led into the plastic sealing bag, so that the bundle-shaped variable section drying water-absorbent resin sucks the water for expansion to block a dam upstream piping port. The quick blockage device is simple in manufacturing, cheap in material and light and convenient for carrying, has economy and practicability, and is fast in emergency blockage speed; the water-absorbent resin can absorb the water to quickly expand and cure, so that the piping port can be quickly blocked; and the construction method is simple and convenient, needs no large equipment, and adapts to characteristics and demands of dam emergency.

The invention discloses a multi-dimensional fluid power generating system which comprises a support rack, a fluid conversion part and a rotation power generating part. The support rack is connected with the fluid conversion part through the rotation power generating part. The rotary power generating part mainly comprises a rotary box, and a speed increasing gear and a power generator disposed in the rotary box. The input shaft of the speed increasing gear extends out of the rotary box and is connected with the fluid conversion part / the support rack. The output shaft of the speed increasing gear is connected with the input shaft of the power generator. The rotary box is connected with the support rack / the fluid conversion part. The multi-dimensional fluid power generating system has the advantages that the system is simple in structure and layout and few in conversion links during power generation, and compaction of the overall structure of the power generating system is benefited; the fluid conversion part has no specific fluid absorption directions and can adapt to the natural flow direction and flow speed of fluids, and the fluid conversion part is low in construction or placing environments, reliable and stable.

The invention discloses a sheep feed and a preparation method of the sheep feed and belongs to the field of feeds. The sheep feed comprises the following raw materials in parts by weight: 50-60 parts of corn powder, 10-20 parts of peanut meal, 5-15 parts of rice bran, 8-18 parts of cottonseed meal, 5-15 parts of linseed cake, 2-12 parts of bean meal, 4-16 parts of bran, 4-8 parts of Chinese radish seeds, 1-5 parts of mulberry leaves, 2-8 parts of triperygium wilfordii, 4-12 parts of cinnamon twig, 4-8 parts of stems of purple perilla, 3-9 parts of bark of official magnolia, 2-8 parts of herb of fortune eupatorium, 3-9 parts of curculigo rhizome and 2-8 parts of lotus leaves. The sheep feed of the invention has scientific recipe and rich nutrition and is capable of adapting growth and physiological characteristics of the sheep, so as to satisfy nutrient demands for the sheep to grow; moreover, the sheep feed is capable of promoting digestion and absorption and also improving immunity and resistance of the sheep.

The invention relates to a slitting mechanism for a bamboo split roll. The slitting mechanism comprises a rack, a cutting device is arranged on the rack, a rear conveying mechanism with a feeding function is arranged behind the cutting device, a front conveying mechanism with a discharging function is arranged in front of the cutting device, and a discharging outlet is formed in front of the front conveying mechanism. The slitting mechanism has the beneficial effects of being reasonable in structure, capable of quickly, efficiently and automatically cutting the bamboo split roll, adaptive to the characteristic of the bamboo split roll, good in cutting effect and capable of avoiding the phenomenon that bamboo filaments are produced during cutting.

The invention provides a parallel platform for a fruit and vegetable picking manipulator. The parallel platform comprises a static platform, a moving platform, a rotating pair R4, single open-chains I, II, III and four servo motors. The parallel platform further comprises a specific topological structure, wherein the topological structure of the parallel platform is 3-RRC+R, and the parallel platform has higher positioning performance under the PID feedback regulation effect, so that the leakage rate and the crushing rate can be effectively reduced; the single positioning time takes less time,so that the response time of mechanical actions is effectively shortened; and the three-dimensional imaging is applied to a target positioning system, so that the positioning of fruits can be effectively realized, and the parallel platform can adapt to the complexity of the operating environment of a fruit tree picking robot and the particularity of the operating targets.

The invention relates to a dynamic binary system translation technology in the computer application field, and discloses a code Cache management method based on static partitioning. The method comprises the steps of adding execution_times representing the basic block executing times and generated_size representing the size of a target system code block into TB information, adding variables L1_base and L1_ptr, adding variables L2_head and L2_rear, and adding a TB backup array. The method has the advantages that the Cache management is flexible, the management spending is low, and the miss rate of the cached code block in the Cache is reduced through considering execution characteristics of a program.

The invention belongs to the technical field of gas power generation, and relates to a low-concentration gas power generating system based on pulse combustion. The low-concentration gas power generating system based on pulse combustion combines a pulse combustor, a waste heat boiler and a threaded rod expansion unit together, low-concentration gas burns in the pulse combustor and releases heat in the waste heat boiler to heat fed water to generate steam, and the steam enters the threaded rod expansion unit to drive a power generator to generate power; a part of waste steam enters a heat-supply heat exchanger, heat is taken away by circulating water provided by a heat-supply circulating water pump, and condensate water enters a feed pump; the other part of the waste steam enters an open-air condenser, heat is taken away through circulating water provided by a cooling water circulating pump, and condensed water enters the feed pump; and the condensed water is firstly conveyed to an economizer to absorb exhaust smoke heat through the feed pump and then enters the waste heat boiler to absorb heat to be changed into steam, and therefore the steam enters the circulation process again. The low-concentration gas electrical power generating system based on pulse combustion has the beneficial effects that the low-concentration gas electrical power generating system can well adapt to the characteristics that the concentration of gas in our country is low and great in fluctuation, and the use ratio of the gas in our country is increased.

The invention discloses a neurology treatment system which is characterized in that the treatment system comprises a bioelectrical stimulating module, an air pressure wave module and a central control module, wherein the bioelectrical stimulating module comprises an impulse waveform output unit and a number of pasting electrodes; the impulse waveform output unit is used for outputting impulse sawtooth waves, impulse triangular waves and impulse sine waves; the pasting electrodes are connected with an output end of the impulse waveform output unit via output conductors; the air pressure wave module comprises a multi-cavity air bag, an air pump and a solenoid valve; the multi-cavity air bag is connected with the air pump via an air guide tube, the solenoid valve is arranged on an air outlet opening of the multi-cavity air bag and is used for controlling opening and closing of the air outlet opening, the central control module is connected with the air pump and the impulse waveform output unit, and the central control module is used for controlling gas and waveform output conditions. The neurology treatment system can be used for bioelectrical stimulating treatment and air pressure wave treatment, and good treatment effects can be provided for patients.

The invention provides one integral wireless multi-jump interface network power control method, which comprises the following steps: according to business speed rate processing initial emission powerand according to network topological information processing emission initiating; then on the base adjusting each distribution power control in each frame fully considering each factor of SIR measurement or transmission error; processing statistics for transmission power as next frame power adjusting base.

The invention discloses a high-temperature solar cavity-type heat pipe center receiver. The high-temperature solar cavity-type heat pipe center receiver comprises high-temperature heat pipes. Each high-temperature heat pipe comprises two segments, wherein the upper segment is the heat release segment, and the lower segment is the heat absorption segment. The high-temperature heat pipes are placedinto a heat absorption chamber. The heat release segments are inserted into a fluid pipe. The fluid pipe is fixed to the upper part of the heat absorption chamber. A working fluid channel is formed bythe heat release segments and the fluid pipe. A daylight opening is formed in the outer wall of the heat absorption chamber. According to the high-temperature solar cavity-type heat pipe center receiver, the high-temperature heat pipes serve as heat transmission elements, the advantages of being good in thermal conductivity, good in isothermality and small in volume are achieved, the two ends ofeach heat pipe are sealed; and because each high-temperature heat pipe works in a relatively independent manner, even when a hot spot appears at some position because the density of received heat flowis too high, or even heat pipe leakage failure appears, no influence is caused to the work of the other heat pipes, the reliability of the receiver can be well kept, and then the receiver can run inhigh heat flux or heat flow for a long term.

The invention discloses a face recognition method and system based on spatio-temporal feature fusion and sample attention enhancement. The method comprises the following steps: obtaining a specific target face sequence in a video through face detection, and scoring the specific target face sequence; performing time feature extraction on the face sequence by using a time sequence processing algorithm ConvGRU; selecting an image with the highest score from the face sequence as a key frame; sending into a Resnet50 network to extract three feature maps with different depths, and calculating by using a spatial feature fusion algorithm ASFF to obtain spatial features; and finally, splicing the obtained time features and the space features in channel dimensions, sending the spliced features to a global average pooling layer and a full connection layer, and training the model by using a proposed ADAM-Softmax loss function. The ADAM-Softmax loss function can adaptively enhance the attention of samples with large intra-class difference, so that the model can achieve high recognition accuracy while rapid convergence is achieved.

The invention discloses a design method of a combined wing section blade of a horizontal shaft tidal current energy water turbine. The method comprises the steps of researching the hydrodynamic performance of a conventional wing section and the hydrodynamic performance of a bionic wing section separately, combining a conventional blade wing section with the bionic wing section according to the function of all blade elements in the blade, and designing out a combined wing section blade which is superior in performance; obtaining a three-dimensional digital model of a fish fin, selecting section contours of different positions of the fish fin as bionic fish-fin wing sections, selecting a bionic fish-fin wing section through analysis software, exporting the bionic fish-fin wing section and required two-dimensional coordinates of the conventional wing section, optimizing blade elements of the designed blade, obtaining parameters of each blade element, making the bionic wing section and the required conventional wing section correspond to the blade elements, converting the three-dimensional coordinates of the wing section into three-dimensional coordinate data, importing the three-dimensional coordinate data into three-dimensional design software, conducting setting-out treatment, and finally generating the combined wing section blade. By means of the design method, the hydrodynamic performance of the combined wing section blade is made to be superior, and the energy-obtaining efficiency of the water turbine is remarkably improved.

The invention discloses a method for dispatching and dispatching shared automatic driving vehicles. The dispatching method of the shared self-driving vehicles judges whether the idle self-driving vehicles in the dispatching area meet the dispatching conditions in the following manner: firstly, it is determined whether the vehicles in the area meet the acceptable walking distance; Select the vehicle with the same driving direction as the destination (terminal position) as the dispatch vehicle; if there is no vehicle that meets the acceptable walking distance, select the vehicle with the shortest dispatch time as the dispatch vehicle. The method of the invention can well adapt to the driving characteristics of the self-driving vehicle, and by introducing the walking distance of passengers, the success rate of car dispatching is improved and the mileage of the self-driving vehicle is reduced.

The invention discloses a power output switching circuit. Two enable ends of a PLC output interface connector are connected in parallel to form a chip operating voltage receiving end, tow enable ends of a load terminal connector are connected in parallel to form a chip operating voltage transmitting end, and loops of the PLC output interface connector and the load terminal connector are switched on and switched off by a switching loop. In the switching loop, a high-speed electronic switching circuit is composed of high-power field effect tubes to substitute a relay circuit with mechanical contacts, thereby being better adapted to characteristics of the PLC output interface for a refill processing machine and better conforming to actual loading requirements (inductive character, high powerand high speed). Since the contactless high-speed electronic switching circuit has no mechanical loss, the problem of short service life is solved, the maintenance cost is greatly lowered, and the down time is reduced simultaneously.

The invention discloses a vehicle dispatching method for shared automatic driving vehicles. According to the vehicle dispatching method for the shared automatic driving vehicles, whether idle automatic driving vehicles in a vehicle dispatching area meet vehicle dispatching conditions or not is judged in the following mode: firstly, whether the vehicles in the area meet acceptable walking distances or not is determined; a vehicle of which the driving direction is consistent with the destination (riding final position) from the vehicles meeting the acceptable walking distance is selected as a dispatching vehicle; and if the vehicle meeting the acceptable walking distance does not exist, the vehicle with the shortest scheduling time is selected as a vehicle to be dispatched. The method can well adapt to the driving characteristics of the automatic driving vehicle, the passenger walking distance is introduced, the vehicle dispatching success rate is increased, and the driving mileage of the automatic driving vehicle is reduced.

The invention discloses a magnetic flexible tactile sensing structure based on a folding magnetization method, which comprises a flexible main body containing a permanent magnet material, the flexible main body has a negative Poisson's ratio structure, and a set area of the flexible main body is subjected to folding magnetization treatment. The invention further discloses a sensor composed of the sensing structure. The sensor provided by the invention can be applied to sealed and wireless scenes, can detect the magnitude and position of force, and has a wide prospect in touch skin application of a robot. The sensing magnetic sheet based on the magnetic field and the Hall element are not in contact, and the touch sensor can also be used as an unconstrained touch sensor under the condition that a connecting line is difficult to establish for isolation. According to the invention, the magnetic sheet structure with the triangular hourglass structure is adopted, so that the magnetic signal change and the stress change of the small magnetic sheet can present a linear relationship, and the magnitude and the position of the force can be detected at the same time.

The invention relates to a quick alignment mechanism for a surgical instrument box and a power box, which comprises the power box and the instrument box, a lower clutch disc on a front cover plate of the power box corresponds to an upper clutch disc on the instrument box, and a notch of the upper clutch disc is completely embedded with a bulge of the lower clutch disc; a positioning pin and a guide buckle are arranged on the front cover plate; the positioning pin and the guide buckle are respectively inserted into the pin hole and the buckle groove of the instrument box; a driving motor is installed in the power box, an output shaft is installed at the output end of the driving motor, and the lower clutch disc slides front and back along the output shaft. The front section of the output shaft is provided with a compression spring, and the compression spring provides reset force when the lower clutch plate is pushed towards the driving motor by external force, so that the lower clutch plate is jacked back to the original position by the compression spring when the external force disappears, and the lower clutch plate is driven by the motor to rotate to be embedded with the upper clutch plate to realize rapid alignment; rapid alignment and rapid installation of a replaced instrument in the operation process can be achieved, and the device is simple in structure, high in reliability, low in cost and easy and convenient to operate.

The invention relates to a wide power supply linear encoder used for a magnetic grating sensor. The wide power supply linear encoder comprises a microprocessor connected with an inductor, a TTL (transistor-transistor logic) output circuit, an input circuit of a power supply module separately, and also comprises a wide power supply module connected with the power supply module. The wide power supply module is used for transforming a voltage into a low voltage, and then transforming the low voltage into a voltage suitable for a sensor via the power supply module. The wide power supply linear encoder of the invention enables the application range and the use occasion to be expanded, can be applied to the special work environment, and realizes the characteristics of small power consumption and high precision.

The invention relates to a high-security-level optimal control device, which comprises a power module, a security-level communication module, a control center module and a signal line module, whereinthe power module is electrically connected with the security-level communication module, the control center module and the signal line module and used for providing electric energy needed by work of the security-level communication module, the control center module and the signal line module; and the security-level communication module is connected with the control center module through the signalline module. According to the high-security-level optimal control device, the security-level FPGA technology and the security-level CPLD technology are utilized, software does not adopt any soft coreor other components, all hardware circuits are designed into combinational logic and sequential logic, hot plug is supported, and the security coefficient is improved; and EMC and other protection circuits are adopted, electromagnetic radiation and other related interferences are eliminated, and a power plant protection system is enabled to achieve normalized and standardized operation.

The invention relates to the technical field of energy power and chemical production, in particular to a multi-field synergistic microwave liquid-phase constant-temperature desorption integrated system, which comprises a desorption system and a heat exchange system. The desorption system comprises a microwave desorption device, an ultrasonic generator and an ultrasonic transducer, and a desorptionreactor is arranged in the microwave desorption device; the heat exchange system comprises a condenser, a first cooling liquid injection pool, a first heat exchanger, a desorption liquid storage tank, a second cooling liquid storage tank, a second heat exchanger, a first liquid pump, a second liquid pump, a third liquid pump, a fourth liquid pump, a fifth liquid pump, a vacuum pump and a liquid injection pump, the condenser is also connected to a vacuum pump, and a vacuum pressure gauge is also arranged between the condenser and the vacuum pump. While effectively improving the desorption performance, the system provided by the invention realizes multiple operation modes of ultrasonic wave, negative pressure and liquid-phase boiling evaporation multi-field synergistic microwave liquid-phase constant-temperature desorption on the basis of microwave liquid-phase constant-temperature desorption.