76results about How to "Achieve precise control" patented technology

The invention discloses a precise control method and system for centrifugal machine parameters of a tubular pile centrifugal process, and relates to the technical field of tubular pile production processes. Comprising the following steps that centrifugal machine parameters in historical production and strength data of produced pipe piles are obtained, the centrifugal machine parameters comprise the centrifugal machine rotating speed, the centrifugal time and the vibration frequency parameter, and a training sample set is generated; establishing a tubular pile strength prediction model, taking the data in the training sample set as input, and taking the tubular pile strength as a label to train the prediction model; real-time centrifugal machine parameters are input into the model, if the production predicted strength data are larger than or equal to the required strength, the current centrifugal machine parameters are kept, and if the production predicted strength data are smaller than the required strength, the centrifugal machine parameters are corrected based on the compactness and the resonance frequency of the pipe pile, and corrected parameters of the centrifugal machine are obtained; and outputting correction parameters of the centrifugal machine to accurately control the centrifugal machine.

The invention relates to the field of high-entropy alloys, in particular to a performance regulation and control method for a hole structure of a laser 3D printing high-entropy alloy stent, which comprises the following steps: step 1, component design and mechanical property research of a medical high-entropy alloy; 2, regulating and controlling the pore structure and the performance of the laser 3D printing high-entropy alloy stent; 3, preparation of the hydroxyapatite / high-entropy alloy composite material and biocompatibility evaluation.The method has the following beneficial effects that on the basis of deep understanding of physical and chemical changes designed in the laser 3D printing technology, a correlation mechanism between technological parameters and a macro / microstructure is established; precise control over the pore structure of the key metal component high-entropy alloy material is achieved, calculation is conducted in combination with the first principle, the component optimization theory of the key metal high-entropy alloy material with the human body implantation biological material as the application target is established, and on-demand preparation of the high-entropy alloy material with high strength, high hardness and low elastic modulus is achieved.

The invention relates to an air-ground dual-purpose tunnel inspection robot intelligent control system, and belongs to the technical field of robot control, the system comprises an unmanned aerial vehicle and an unmanned vehicle, the unmanned aerial vehicle and the unmanned vehicle are cooperatively used, and cooperative use of the unmanned aerial vehicle and the unmanned vehicle comprises control of integrated operation of the unmanned aerial vehicle and the unmanned vehicle and control of split operation of the unmanned aerial vehicle and the unmanned vehicle; the system further comprises a sensing fusion module, a path planning module, a network communication module, an obstacle observation and prediction module and an intelligent control module, the sensing fusion module is arranged on the unmanned aerial vehicle and the unmanned vehicle, and the sensing fusion module is used for detecting external information of the unmanned aerial vehicle and the unmanned vehicle. The sensing fusion module comprises a camera, a radar, a laser radar, an ultrasonic sensor, an inertial measurement sensor, a GPS positioning sensor, a smoke alarm sensor and a toxic gas detection sensor; the unmanned aerial vehicle communicates with the unmanned vehicle; according to the invention, the safety and reliability of tunnel inspection work are effectively improved, and accurate control of the tunnel inspection robot is realized.

The invention relates to the technical field of sensing equipment synchronous control, and discloses a camera synchronous triggering system and method and computer equipment. The system comprises a vehicle-mounted upper computer which is used for sending a working mode control instruction to a synchronous trigger box; the positioning device is used for sending a first pulse signal corresponding to the position information to the synchronous trigger box; the laser radar is used for sending a second pulse signal corresponding to the distance information to the synchronous trigger box; the synchronous triggering box is used for determining a target execution strategy corresponding to the target working mode according to the working mode control instruction and a pre-stored corresponding relation between the working mode and the execution strategy; the processor is used for determining a trigger signal according to the target execution strategy so as to control the camera to perform exposure; and the camera is used for receiving the trigger signal to realize exposure control. By implementing the technical scheme of the invention, the highly synchronous control of the exposure opportunity of the camera is realized, and exposure at a specific position and specific time is ensured.

The invention discloses a handheld fan control method, a controller, a storage medium and a program product, and relates to the field of handheld fans, and the method comprises the following steps: collecting body surface temperature data and heart rate data of a user, and the real-time wind speed, the fan blade radius and the residual electric quantity of the handheld fan; according to the body surface temperature data and the heart rate data, target output air volume needed by the user is determined; the current output air volume of the handheld fan is determined based on the real-time air speed and the fan blade radius; calculating a deviation value between the current output air volume and the target output air volume; an intelligent adjusting strategy corresponding to the deviation value is searched in a preset air outlet adjusting table; judging whether the residual electric quantity of the handheld fan is higher than a preset electric quantity threshold value or not; if yes, the intelligent adjusting strategy is applied to the handheld fan; and if not, the handheld fan is adjusted to the default wind speed, and a charging prompt is sent out. By implementing the method, charging and discharging of the handheld fan can be accurately controlled.

The invention discloses a welding strip clamping mechanism which comprises a first clamping unit located on the upper side of a battery piece and a second clamping unit located on the lower side of the battery piece. The first clamping unit comprises a base plate and a driving structure installed on the base plate. The driving structure comprises a driving part I, a driving part II and a driving part III; the first clamping unit further comprises a first sliding piece, a second sliding piece, a first clamping piece and a second clamping piece. The two sides of the first sliding piece are fixedly connected with a first driving piece and a first clamping piece correspondingly. The two sides of the second sliding piece are fixedly connected with a second driving piece and a second clamping piece correspondingly. The second clamping unit comprises a guide groove plate. The power mechanism, the moving part, the first turning assembly and the second turning assembly are arranged on the lower side of the guide groove plate; one end of the moving part is fixedly connected with the power mechanism, and the other end is slidably connected with the turning assembly I and the turning assembly II; the second clamping unit further comprises a third clamping piece and a fourth clamping piece. The third clamping piece and the fourth clamping piece are fixedly connected with the second direction changing assembly and the first direction changing assembly respectively.

The invention provides a flow control method and device for a heating and steam supply regulating valve of a heat supply unit, and belongs to the field of heat supply and heating. The method comprises the following steps: determining a first characteristic curve of the characteristic flow coefficient and the opening degree of the heat supply regulating butterfly valve of the communicating pipe; a second characteristic curve of the characteristic flow coefficient and the opening degree of the heating steam supply regulating valve is determined; based on the first characteristic curve and the corrected characteristic through-flow coefficient of the communicating pipe heat supply adjusting butterfly valve, the opening degree of the communicating pipe heat supply adjusting butterfly valve corresponding to the preset adjusting amount of the heating steam extraction flow is determined; based on the second characteristic curve and the corrected characteristic through-flow coefficient of the heating steam supply adjusting valve, the opening degree of the heating steam supply adjusting valve corresponding to the preset adjusting amount of the heating steam extraction flow is determined; and based on the opening degree of the communication pipe heat supply adjusting butterfly valve corresponding to the heating steam extraction flow preset adjusting amount, the opening degree of the heating steam supply adjusting valve corresponding to the heating steam extraction flow preset adjusting amount and the opening degree preset range, the opening degree of the communication pipe heat supply adjusting butterfly valve and the opening degree of the heating steam supply adjusting valve are determined correspondingly. The flow of the heating and steam supply regulating valve of the heat supply unit can be accurately controlled.

The invention relates to the technical field of cell culture, and discloses a stem cell differentiation degree identification method based on image features. The method comprises the following steps: continuously capturing multi-temporal image data in a stem cell culture process through a high-resolution microscopic imaging system, and generating an image and environment synchronous data set; processing the data set, extracting dynamic morphological features and texture change modes of the stem cells, and constructing a fusion feature set; outputting a differentiation process index based on the fusion feature set; a differentiation degree grade division rule is set, and a differentiation process index and differentiation grade mapping table is established; in a real-time application stage, acquiring real-time imaging data and environment readings, and inputting the real-time imaging data and the environment readings into an evaluation network to calculate real-time differentiation process indexes; querying the mapping table according to the real-time index to obtain a differentiation grade judgment result; comparing the judgment result with a preset target range, and if the judgment result falls into the target range, automatically executing differentiation state marking and culture parameter adjusting operation.

The invention provides a double-layer jacquard fabric interlayer weaving process and a double-vision artistic effect realization method, and the method comprises the following steps: providing warp yarns, weft yarns and interlayer connecting yarns which are adaptive to double-layer jacquard, and the breaking strength of the interlayer connecting yarns is not less than 3.2 cN / dtex; the method comprises the following steps: importing surface layer jacquard pattern data and inner layer jacquard pattern data into a pattern weaving CAD system, presetting a yarn interweaving threshold value and pattern edge transition parameters of an interlayer connection area, generating a collaborative weaving data table of surface and inner layer jacquard and interlayer connection, marking corresponding interweaving areas of surface layer patterns and inner layer patterns, and carrying out collaborative weaving; the collaborative weaving data table comprises intervention opportunities and interweaving frequency parameters of connecting yarns in each region; according to the invention, by switching the connecting structure in different periods, adapting to the characteristics of the jacquard area and combining the parameters of the connecting yarn and the limitation of the interweaving depth, the complete concealment of the connecting points, the accurate alignment of mirror image jacquard of the surface and inner layers, the control of the dislocation amount within 0.15 mm and the complete and non-split double-visual effect are realized, and the visual requirements of high-end fabrics are met.

The utility model discloses a multistage gradient water-cooling quenching mechanism for aluminum profiles, which relates to the technical field of aluminum profile processing and comprises a side frame, a protective cover fixed on the side frame through screws, a multistage gradient quenching component, a quenching control component and a water-cooling circulating component. According to the utility model, the multi-stage gradient quenching assembly is arranged, the flow speed of cooling water of each stage of cooling unit is accurately controlled, and controllable gradient cooling is realized, so that the cooling speed of each part of the aluminum profile tends to be consistent, the deformation stress generated by non-uniform cooling is effectively reduced, and the dimensional accuracy and the surface quality of the aluminum profile are improved; according to the equipment, the temperature change of the aluminum profile can be monitored in real time through the infrared temperature sensor, data are fed back to the control box, the control box automatically adjusts the flow speed of cooling water according to a preset temperature-flow speed curve, automatic and precise control over the cooling process is achieved, and the production efficiency and the stability of the product quality are improved.

The invention relates to the technical field of machine vision, in particular to a teaching project assessment system based on posture perception, which comprises a video acquisition module; the data extraction module is used for extracting examination images and key examination video segments; the data processing module is used for acquiring the outline and key assessment action point positions of the assessed person and constructing lines of the key assessment action point positions; the evaluation module is used for judging whether the key evaluation point position posture of the examinee meets a preset standard or not, verifying whether the key evaluation point position posture of the examinee meets the preset standard or not, determining an optimization mode of a key evaluation action standard image, judging whether the key evaluation action posture process in the key evaluation video segment meets the preset standard or not, and if yes, judging whether the key evaluation action posture process meets the preset standard. The attitude analysis module is used for checking whether the key assessment action process meets a preset standard or not; comprising a first storage unit and a second storage unit, the intelligent analysis of the examination posture is realized, and the accuracy of the examination system is improved.

The present invention relates to a method, device and equipment for soft de-jittering of unmanned aerial vehicle position, and belongs to the technical field of position jitter elimination. After obtaining the receiving position, the method, device and equipment filter the receiving position to obtain the receiving position, calculate the total expected speed according to the target position and the actual position, calculate the travel distance of the unmanned aerial vehicle through the total expected speed, obtain the remaining distance according to the target position and the travel distance, continuously update the actual position through the remaining distance, control and adjust the actual position and the total expected speed, realize accurate control of the position, eliminate the position jitter in the flight operation process of a low-load large unmanned aerial vehicle, and meet the requirements of load operation.

The utility model discloses a kind of corrugated board slitting device, it is related to corrugated paper processing technical field, including workbench;The surface of the workbench is equipped with support plate, and the bottom inner side of support plate is equipped with moving assembly, and the bottom of moving assembly is provided with lower moving assembly, and the lower portion of lower moving assembly is equipped with rotating assembly;The utility model is equipped with rotating assembly below lower moving assembly, and the output end of motor is rigidly connected with mounting block, forms the rigid transmission chain of "motor-mounting block-cutter", ensure that the torque of motor output can be transmitted to cutter without loss, realize the accurate control of angle, in slitting process, if angle needs temporary adjustment, motor can respond instruction in time, when cutter does not contact paperboard or leave paperboard surface, quickly complete angle correction, without interrupting overall process, this kind of dynamic adjustment ability greatly improves the adaptability of device to complex slitting task, reduces the downtime of replacing different angle cutter, improves production efficiency.

The utility model relates to the technical field of robots, in particular to a wheeled robot control device which comprises a transmission body, a carrier, a rubber ball wheel and a transmission assembly, the carrier is provided with the transmission body, the transmission assembly is used for driving the rubber ball wheel to axially rotate, and the rubber ball wheel is arranged on the side face of the carrier. The transmission assembly is arranged in the carrier. The motor transmits power to the rubber ball wheel, simplification and high efficiency of the robot structure are achieved, the elastic characteristic of the rubber ball wheel is beneficial to impact absorption, damage to the internal structure of the robot is reduced, the service life of equipment is prolonged, the transmission body is finely adjusted through the micrometer, and the service life of the equipment is prolonged. The controllability and accuracy of contact between the ball control part and the football are achieved, and the adjusting process of the ball control strength of the ball control structure is greatly simplified through the application of the spring.

A saw blade punching tooth combined die, the die comprises a bottom table, a bottom plate, an upper clamp plate, a lower clamp plate, a rotating plate and a top table, a plurality of size concave dies are carried through the rotating plate between the upper and lower clamp plates, precise positioning is realized by the interference fit of the ratchet disc and the ratchet groove, the rotating plate outer wall tooth groove corresponds to the scale bar of the upper clamp plate, the rotating angle is directly controlled, the top table quickly replaces the punch plate through the clamping plate, and the punch tooth processing is completed in cooperation with the convex die and the concave die; the bottom table storage groove integrates the idle punch plate, and part loss is avoided. The present application solves the problems of low die changing efficiency, positioning deviation and single function of the traditional die, realizes the rapid switching and high-precision processing of multiple specifications of tooth shape, and improves the flexibility and reliability of saw blade production.

This specification provides a data processing method and apparatus, wherein the data processing method includes: preprocessing initial audio data to obtain audio data, and inputting the audio data into an audio recognition model to obtain initial text containing prosody identifiers; determining at least one text unit corresponding to the initial text, and determining time information corresponding to each of the at least one text unit based on the audio data; updating the initial text in the prosody identifier dimension based on the time information corresponding to each of the at least one text unit to obtain target text corresponding to the audio data, wherein the target text and the audio data are used to train an audio generation model.

The invention belongs to the technical field of trolley control, and particularly provides a flexible robot operation trolley, a using method, a terminal and a storage medium, the flexible robot operation trolley comprises a trolley body, an RFID portable reader-writer, a controller and a power source for supplying power to the whole operation trolley, and the trolley body is installed on a conveying device capable of driving the trolley body to move. At least one flexible robot is arranged around the trolley body, at least one working partition is arranged on the upper surface of the trolley body, an electronic information card used for storing information of products to be operated placed on the working partition is arranged on the trolley body, and the electronic information card is installed on the side, close to the flexible robot, of the trolley body. An information reading sensor corresponding to the electronic information card is mounted on one side of the flexible robot; through the combination of the modular trolley body and the flexible robot, the working trolley can easily meet the production requirements of multiple varieties and small batches.

The present invention discloses an expansion rod adjustment structure of a tube expander, comprising a frame, a power seat arranged on the frame and movable along the frame, an expansion rod fixing plate fixedly arranged on the power seat; a group of expansion rod mounting holes are arranged on the expansion rod fixing plate, and a retractable expansion rod is arranged in the expansion rod mounting holes; a group of baffles for shielding the expansion rod mounting holes are arranged on the back of the expansion rod fixing plate, and a baffle driving device for driving the baffles to move is also arranged. Through the action of the baffles, the present invention can control each expansion rod individually, and can realize automatic control, avoid manual adjustment, reduce the manual operation intensity and improve the safety of use, and can be widely used in the field of expansion rod adjustment of tube expanders.

The utility model discloses a kind of drying device of DNPH silica gel column auxiliary drying forming, including drying cabinet main body, the drying cabinet main body top surface center position is equipped with speed reducer, drying cabinet main body inside through-hole is equipped with suspension subassembly, drying cabinet main body lower end rectangular recess is equipped with electric heating tube, drying cabinet main body lower end rectangular recess edge is welded with shunt plate, the bottom surface circular through-hole of drying cabinet main body is equipped with fan subassembly, drying cabinet main body one side upper end rectangular through-hole is welded with exhaust frame, the top surface of drying cabinet main body one corner is equipped with control box, the inside edge of drying cabinet main body is movably installed with inner cabinet door by hinge.The drying device of DNPH silica gel column auxiliary drying forming of the utility model is designed by rotating suspension, hot air circulation, accurate control and convenient operation, improves the uniformity, efficiency and quality of DNPH silica gel column drying, and it is convenient to move, and strong applicability.

The invention discloses a photovoltaic power generation control method, system and device, a medium and a product, and belongs to the technical field of photovoltaic power generation control, and the method comprises the steps: coding sunrise time, sunset time and a weather shade and sunny prediction value, and obtaining sunrise and sunset coding information and shade and sunny coding information; predicting weather according to the weather information, the sunrise and sunset coding information, the sunshine coding information and the weather intervention influence information to obtain a weather prediction value; according to the weather prediction value, the historical generating capacity and the historical load, predicting the load and the generating capacity of the next time period to obtain a load prediction value and a generating capacity prediction value; and controlling photovoltaic power generation according to the load predicted value and the generating capacity predicted value. According to the invention, accurate control of photovoltaic power generation is realized, and the technical problem that the photovoltaic power generation cannot be accurately controlled due to the fact that the generating capacity cannot be accurately predicted at present is solved.

This invention relates to a gradient self-heating material based on phase change-oxidation synergistic regulation, its preparation method, and its application. The gradient self-heating material based on phase change-oxidation synergistic regulation comprises a core layer, a transition layer, and a shell layer connected sequentially; wherein the core layer is a reduced iron powder-phenolic resin composite layer; the transition layer is a gradient transition structure of iron powder, CNT-graphite composite material, and resin; and the shell layer is a catalytic phase change material particle-resin composite layer; the volume percentages of the shell layer, transition layer, and core layer are 20%-30%, 20%-30%, and 40%-60%, respectively. The problem this invention aims to solve is overcoming the interfacial failure challenge between the oxidant and the phase change material through chemical bonding reconstruction, breaking through the thermal accumulation bottleneck by employing a gradient thermal conductivity structure design, and achieving cross-scale synergy across four dimensions: exothermic reaction, heat storage phase change, heat conduction, and dynamic regulation. The final product's thermal response time (temperature greater than 50℃) is <30 seconds.

The utility model relates to a kind of syrup preparation and stirring device, especially a kind of toffee corn ball syrup preparation and stirring device.The technical scheme is as follows:one kind of toffee corn ball syrup preparation and stirring device, including cylinder, fixed support, sealing cover, electric heating resistance wire, blanking tube and control valve one, etc., cylinder is made of two layers, forms a sandwich space, the sandwich space is cooling cavity, cylinder outer wall is fixedly connected with fixed support, cylinder top is placed with sealing cover, at least three electric heating resistance wires are fixedly connected with annular array in the cavity in the bottom of cylinder, the cavity and cooling cavity are not communicated, cylinder bottom is connected and communicated with blanking tube, blanking tube outer wall is fixedly connected with control valve one.The utility model is by flow transmitter and is sent to the inside of blanking cylinder with various raw materials according to proportion, then falls into the inside of sleeve through blanking port of blanking cylinder, finally is sent to the inside of cylinder by screw conveying rod, reaches the effect of accurate control amount.

The utility model discloses an anti-bumping apple picking machine, which relates to the technical field of apple picking and comprises a base, driving rods are rotatably connected to two sides of the top end of the base, a connecting rod is hinged to one end, far away from the base, of each driving rod, and a clamping plate is fixedly connected to the other end of each connecting rod. Buffer plates are arranged on the opposite sides of the clamping plates, a plurality of buffer springs are fixedly connected between the clamping plates and the buffer plates, a button is installed at the center position of the side, close to the buffer plates, of each clamping plate, a touch block is installed on the side, close to the clamping plates, of each buffer plate, and the touch blocks are matched with the buttons; through the combined action of good elasticity of rubber and the buffer springs, the apple picking device can effectively absorb and disperse impact force during clamping, direct rigid collision between apples and the clamping plates is avoided, the damage probability of the apples in the picking process is greatly reduced, the appearance and quality of the apples are guaranteed, and the commodity value of the apples is improved.

The present invention provides a temperature compensation method for a semiconductor device replacement pyrometer scenario, by verifying the accuracy of a target temperature prediction algorithm before replacing the pyrometer, after the pyrometer is replaced, a standard test process is run through the semiconductor device, and the measured temperature of the corresponding position of the wafer is measured by a second pyrometer set at each measurement point, and the heating power of the corresponding heating element under different measurement temperatures is detected at the same time, and based on the target temperature prediction algorithm, the target temperature of the corresponding position of the wafer is predicted according to the heating power; then, based on each measurement temperature and its corresponding target temperature, the reading of the corresponding second pyrometer is compensated to obtain the final measurement value of the second pyrometer. The present invention can compensate the reading of the second pyrometer according to the target temperature, thereby improving the accuracy of the final measurement value of the second pyrometer.

The utility model discloses a tinned copper clad steel wire heat treatment device, including heating furnace, the right side fixed mounting of heating furnace has circulating fan, the air outlet pipe of circulating fan extends to the inside communication of heating furnace's downward exhaust pipe, the top communication of exhaust pipe has the air outlet head, the back of heating furnace inner chamber is installed spiral heating tube, the front of spiral heating tube is installed and is connected to the heat conduction fin, and the left end of spiral heating tube extends to the outside fixed mounting of heating furnace and is installed heater. The utility model discloses through circulating fan cooperation spiral heating tube and heat conduction fin, forms hot -blast circulation system, ensures the evenness of furnace temperature field, avoids the partial overheating of wire rod, and rotating disc, limit post and vertical rod constitute the rotating type wire rod fixed establishment, can drive wire rod uniform speed rotation, guarantees heat treatment consistency, and temperature detector real -time feedback temperature data, combines the adjustment of air vent and sealing door, realizes the accurate control of heat treatment process.

This utility model discloses a high-efficiency and energy-saving steam generator for pasta processing, including a support frame. A generating mechanism is mounted on the support frame. The generating mechanism includes a cylinder, a water tank, a water injection pipe, an external pipe, a material tank, and an outer cover. A pressure relief mechanism is located at the top of the cylinder. The pressure relief mechanism includes a support pipe, a pressure relief sleeve, an inlet pipe, a sliding rod, a sealing plate, a pressure spring, a contact ring, an adjusting sleeve, a rotating sleeve, a screw, a transmission sleeve, and a positioning mechanism. The support pipe is located on the top surface of the cylinder and connected to the water tank. The pressure relief sleeve is installed inside the support pipe, and the inlet pipe is located at the bottom of the pressure relief sleeve. When the steam pressure inside the cylinder is too high, the pressure pushes the sealing plate through the inlet pipe, overcoming the preset force of the pressure spring, thus forming a flow channel between the sealing plate and the inlet pipe, allowing the pressure to be released smoothly. At this time, the pressure relief sleeve discharges excess pressure, avoiding the risk of equipment damage or dangerous leakage due to excessive pressure in the steam generator.

This invention discloses a sliding mode control method for a force feedback manipulator, comprising the following steps: Step 1, establishing a kinematic model and a dynamic model; Step 2, determining the state-space expression of the force feedback system; Step 3, designing the sliding surface; Step 4, performing stability analysis of the force feedback system; Step 5, determining the conditions that the sliding mode control law should satisfy; Step 6, controlling the force feedback manipulator. Compared with existing force feedback manipulator control methods, this invention adopts a sliding mode control method, which can dynamically change according to the current state of the system to achieve the system moving according to a preset sliding mode trajectory. It has good adaptability and robustness, can reduce the interference of disturbance factors on the dynamic model, and achieve precise control. Furthermore, the sliding mode control method only requires adjusting two parameters, making adjustment more convenient and simple, and improving the design efficiency of the control method.

The utility model discloses a kind of multi-section temperature control coil of diesel cracking reactor, belong to petroleum chemical equipment technical field, it includes bearing assembly, filter component and flow rate component, three are sequentially fluidly communicated;Filter component is used to remove solid impurities in oil gas on line, flow rate component includes the sliding plate driven by electric push rod, sliding plate is rotated in the valve plate in hollow disc by rotating column, realizes the automation accurate adjustment of flow rate.The utility model is closely integrated by high-efficiency on-line filtering and accurate automatic flow rate control function, effectively solve the problem that the equipment operation is unstable, product quality fluctuation caused by the impurity blockage and flow rate control inaccuracy in prior art, significantly improve the quality and yield of cracking product, enhance the reliability of system, and make equipment maintenance more safe, convenient.

The invention relates to a preparation method and application method of a copper-based catalyst for electrochemical CO2 reduction, and the preparation method of the copper-based catalyst for electrochemical CO2 reduction comprises the following steps: S100: obtaining copper powder, dissolving the copper powder in a solvent, and ultrasonically mixing uniformly to obtain a copper-based mixed solution; and S200, the copper-based mixed solution is transferred into a high-pressure kettle to be heated, after the temperature rises to the preset temperature, CO2 gas is introduced into the high-pressure kettle till the high-pressure kettle is in a supercritical state, constant-temperature reaction is conducted for 3-24 h, the high-pressure kettle is cooled to the room temperature, then centrifugation is conducted, solid at the bottom is taken, washing and drying are conducted, and the copper-based catalyst for electrochemical CO2 reduction is obtained.