39results about How to "Avoid retrofitting" patented technology

The invention discloses a four meters integrated information acquisition converter. The four meters integrated information acquisition converter comprises a CPU module, and a 485 communication module, an MBUS communication module, a carrier wave interface, a micropower wireless interface, a storage circuit, an infrared interface, a lamp plate and a power supply module which are connected with the CPU module; and the CPU module is connected to a host acquisition concentrator, a gas meter, a water meter, an ammeter and a heating meter. After the host acquisition concentrator sends a data uploading instruction to the four meters integrated information acquisition converter, the CPU module acquires data from metering instruments, converts the received data, and sends the converted data to the host acquisition concentrator. The four meters integrated information acquisition converter supports RS-485, MBUS, a micropower wireless mode, carrier wave and other communication modes, can couple with almost all metering instruments under all standard protocols, and also realizes acquisition of data of different standard metering instruments with multiple different formats through uploading data by multiple means. The four meters integrated information acquisition converter is suitable for four meters integration engineering construction and reconstruction .

The invention discloses a brake energy recovering rate test method for a battery electric vehicle. The method comprises the following steps that a sensor and a data collector are installed; brake condition of the test vehicle is tested in a rotary drum or standard test site, and a host computer reads measurement values of different sensors in real time via a data collector; the dissipation energyof a brake is calculated according to a main cylinder pressure signal and a wheel rotating speed signal; motor recovering energy is calculated according to the main cylinder pressure signal, pressuresignals of different wheel cylinders and the wheel rotating speed signal; and the brake energy recovering rate is calculated. The brake energy recovering rate is calculated according to main and wheelcylinder pressures, it is not required to additionally mount current and voltage sensors in a high voltage wire harness of the vehicle, the brake energy recovering rate can be calculated accurately via once test, operation is safe and simple, the test efficiency is high, and the method can be applied to rotary drum test as well as practical rod test.

The invention provides a vehicle ramp slope identification method and device. The method comprises the steps: obtaining the average wheel speed of front wheels, the average wheel speed of rear wheels,the engine torque change rate, the brake master cylinder pressure and the longitudinal acceleration measured by an inertial acceleration sensor of a vehicle; performing filtering differential processing on the average wheel speed of the rear wheel and the average wheel speed of the front wheels to obtain a rear wheel acceleration filtering value and a front wheel acceleration filtering value; filtering the longitudinal acceleration measured by the inertial acceleration sensor to obtain an inertial longitudinal acceleration filtering value; and determining the slope angle of the vehicle on a ramp according to the difference between the rear wheel acceleration filtering value and the front wheel acceleration filtering value, the engine torque change rate, the brake master cylinder pressureand the difference between the rear wheel acceleration filtering value and the inertia longitudinal acceleration filtering value. According to the identification method, the ramp is identified by adopting the existing sensor of the vehicle, so that the control of the vehicle can be corrected, the cost can be saved, and the accuracy of the obtained ramp slope can be effectively ensured to be higher.

The invention relates to a visual intelligent monitoring system and method for the ash deposition corrosion wear state of medium-low temperature smoke heat exchange equipment, which are characterizedin that actual smoke is adopted, the actual operation working condition is fitted, the smoke inlet temperature and air speed can be adjusted, the working conditions of different smoke temperatures andflow speeds of the whole smoke system are simulated, and online monitoring data are provided; a resistance probe and an eddy current sensor are used for monitoring the conditions of heat exchange, corrosion resistance, wear resistance, ash deposition, coking and the like of the heat exchange tube; based on the convolutional neural network and an intelligent identification and analysis model of amonitoring probe state image, an image data set is made by using a large number of on-site pictures of the monitoring probe and the calculated heat transfer coefficient, ash deposition thermal resistance, corrosion rate and wear rate, and accurate matching of the image and the heat exchange tube state is realized; the intelligent identification and analysis model adopts a convolutional neural network algorithm model to carry out pixel-level processing on the image, state image features are accurately identified, and the accuracy of an analysis result is high; and the heat transfer coefficient,the ash deposition thermal resistance, the corrosion rate and the wear rate of the heat exchange tube are analyzed by images.

The invention discloses a sitting posture correction device and method. A pressure sensor is embedded in the position, above a sitting part, of a wiring channel, and the wiring channel penetrates through a supporting part from the lower part of the sitting part to extend to the rear side of a backrest part; an ultrasonic sensor is arranged on the junction of the inner side of the upper end of thebackrest part and the wiring channel, and a microcontroller and an alarm are arranged on the junction of the outer side of the upper end of the backrest part and the wiring channel; the value of the pressure applied to the sitting part is obtained, and the pressure value is compared with a pressure threshold value to identify whether a human body is borne by the sitting part or not; after it is identified that the human body is borne by the sitting part, the ultrasonic sensor is awakened to obtain the spacing distance between the neck of the human body and the backrest part; when the spacing distance is larger than a given distance threshold value, the duration starts to be counted, and when the duration is larger than a given time threshold value, correction early warning is conducted; and when the spacing distance is smaller than the given distance threshold value, correction early warning is stopped. The problems, commonly existing in students, such as the poor posture of doing homework, hunchback and getting too close to books are corrected.

The invention provides a noise assessment and noise optimization method and device for an electric reactor. The noise assessment method for the electric reactor comprises the steps that basic parameter information of each coil in a to-be-measured electric reactor is acquired; according to the basic parameter information, the maximum displacement of each coil is calculated respectively; according to the maximum displacement and the basic parameter information, an effective value of the vibration velocity of each coil is calculated; according to the effective value of the vibration velocity of each coil, the noise level of the to-be-measured electric reactor is evaluated. The noise assessment and noise optimization method and device for the electric reactor have the advantages that the problem that the noise cannot be evaluated in the early design phase of the electric reactor, the assessment method is simple and effective, a basis is provided for performing noise optimization on the electric reactor subsequently, and the noise assessment and noise optimization method and device have guiding significance for noise reduction design of a smoothing reactor.

The invention discloses an automatic intelligent scheduling method for a plant finished vehicle, which mainly comprises steps: multiple laser radars are arranged along a vehicle plant working stationto a plant parking area, a laser radar scanning network covering the vehicle plant working station to the plant parking area is formed, and a map is generated; a server in communication connection with the laser radar scanning network is set for receiving a scheduling request and parking space state information in real time; the server selects parking space for a to-be-scheduled finished vehicle,and based on the map, a path from the current position of the to-be-scheduled finished vehicle to the selected parking space is planned for the to-be-scheduled finished vehicle; and the server is connected with the control system for the to-be-scheduled finished vehicle, and the control system is used to control the to-be-scheduled finished vehicle to automatically drive to the selected parking space from the current position according to the path. Through cooperation among the laser radar scanning network in the plant, the server and the to-be-scheduled finished vehicle control system, automatic intelligent scheduling on the to-be-scheduled finished vehicle is realized, the labor is saved, and the working efficiency is improved.

The invention belongs to the technical field of financial investment risk management. The invention discloses a financial investment risk management method and system based on big data analysis. The financial investment risk management system based on big data analysis comprises a management account registration module, a financial data acquisition module, a main control module, a data encryptionmodule, an investment risk assessment module, a business processing module, a transaction control module, a management authority setting module, a big data analysis module and a display module. Through the service processing module, the problem that when a user uses the financial terminal, large potential safety hazards exist is effectively solved, and the safety and confidentiality of user information are improved; and meanwhile, various parameters are flexibly adjusted and configured through the transaction control module according to the supervision requirements of the internet electronic account, so that the flexibility and security requirements of internet finance are met, the security controllability of the internet finance is ensured, and the application range and security are improved.

The invention relates to a boiling heat exchange cooling device for a hydrodynamic retarder. The boiling heat exchange cooling device for the hydrodynamic retarder comprises a water tank, a condenser and an interlayer, wherein the interlayer is arranged on the outer wall of a fixed pulley of the hydrodynamic retarder; an oil flow channel and a spiral cooling flow channel are formed in the interlayer; an inlet of the cooling flow channel is connected with an outlet of the water tank through a water pump; an outlet of the cooling flow channel is connected with an inlet of the condenser; an outlet of the condenser is connected with an inlet of the water tank; the water pump is controlled by a water pump motor; the oil flow channel comprises an oil inlet pipeline and an oil outlet pipeline; an inlet of the oil inlet pipeline is connected with oil outlets of both the water pump motor and a fan motor; an outlet of the oil inlet pipeline is connected with an oil inlet of a working chamber of the hydrodynamic retarder; an outlet of the oil outlet pipeline is connected with oil inlets of both the water pump motor and the fan motor; an inlet of the oil outlet pipeline is connected with an oil outlet of the working chamber of the hydrodynamic retarder; and the fan motor controls a cooling fan to work. The boiling heat exchange cooling device for the hydrodynamic retarder has a good cooling effect and can prevent leakage of transmission liquid.

Provided is a tile type photovoltaic module installed on a pitched roof. The module comprises a photovoltaic module and a frame. The photovoltaic module is fixedly embedded in the frame. The upper end of the frame is provided with a groove fixedly connected with a roof batten. The left side and the right side of the frame are respectively provided with a lap joint structure used to connect with adjacent tile type photovoltaic modules. Compared with the prior art, the tile type photovoltaic module is advantaged by wide use range, convenient installation, and low cost.

The invention relates to an air conditioner indoor unit cleanliness degree detection method and an air conditioner thereof. The method comprises the steps that the air conditioner is controlled to run in a laboratory environment for preset time; measuring the indoor temperature of the laboratory after the preset time, and calculating the change rate of the indoor temperature of the laboratory within the preset time to obtain a reference temperature change rate; the air conditioner is controlled to run for the preset time in the actual use scene; the indoor temperature in the actual use scene after the preset time is measured, the change rate of the indoor temperature in the actual use scene within the preset time is calculated, and the change rate of the actual temperature is obtained; and according to the deviation between the actual temperature change rate and the reference temperature change rate, the cleanliness degree of the air conditioner indoor unit is judged. According to the scheme provided by the invention, the cleanliness degree of the air conditioner indoor unit can be accurately judged under the condition that an air conditioner internal detection device is not additionally arranged.

A frequency converter disclosed by the present invention comprises a cabinet, the front surface of the cabinet is fixedly provided with a front cover plate, the front cover plate is composed of a terminal cover plate and an upper cover plate, the front surface of the upper cover plate is fixedly provided with a controller, and the lower position between the two sides of the inner wall of a magnet vane is fixedly provided with an aluminum profile partition plate. A plurality of heat dissipation grooves are formed in the bottom of the aluminum profile partition plate at equal intervals. According to the frequency converter, a first vertical electromagnetic shielding structure, a transverse electromagnetic shielding structure and a second vertical electromagnetic shielding structure can be independently installed, after installation is completed, the first vertical electromagnetic shielding structure, the transverse electromagnetic shielding structure and the second vertical electromagnetic shielding structure can be in a series connection power-on state, and when one of the structures is damaged, only the damaged part needs to be replaced without completely disassembling and replacing, so that the maintenance cost is reduced, and the waste of resources is favorably avoided.

The invention discloses a light heating roof. The sunny surface of the roof comprises a plurality of light heating glass tiles connected together; each of the light heating glass tiles comprises the outermost glass tile, the middle heat collecting layer and a bottom insulating layer; an air circulating channel is formed between the glass tile and the heat collecting layer; the heat collecting layer comprises a supporting plate and a heat collecting membrane plated to the surface of the supporting plate; the heat collecting membrane is located on the side, facing the glass tile, of the supporting plate and the insulating layer is located on the other side; a fan is arranged transversely at the air outlet of the top of the roof, and is connected to warm air outlets of rooms through pipelines; an air duct switching device is arranged in the air inlet of the bottom of the roof and the air duct switching device can communicate the air inlet outdoors or indoors. The light heating roof heatsoutdoor air by means of the whole heating area of the roof to provide hot air indoors and carry out indoor air circulation, so that the light heating roof is high in heating efficiency and low in cost, and existing insulating layers and tiles of the roof are replaced, so that light heating and building are integrated.

The invention discloses a wire protection sleeve assembly with a built-in Bluetooth module, a BLDC motor controller and a motor. The wire protection sleeve assembly comprises a wire protection sleeve main body, the wire protection sleeve main body is an injection molding body, the wire protection sleeve main body is provided with an installation groove, a circuit board is embedded in the installation groove, the Bluetooth module is integrated on the circuit board, the circuit board is electrically connected with a plurality of leads, the leads are led out of the wire protecting sleeve main body and are electrically connected with the motor controller; the Bluetooth module is arranged in the wire protection sleeve main body, and then the wire protection sleeve main body is embedded in a control box, so that the space is reasonably utilized, the Bluetooth module is prevented from being directly arranged on the motor, the size of the motor is reduced, the use of parts is reduced, and the manufacturing cost is reduced; the Bluetooth module is directly and electrically connected with the main control circuit board of the motor controller, so that a built-in battery is prevented from being additionally arranged, the motor assembly steps are simplified, and the assembly efficiency is improved; and besides, the wire protection sleeve main body is an injection-molded body, so that the shielding effect on wireless signals can be weakened, and the influence on signal transmission can be avoided.

The invention relates to the field of vehicle engineering and electrical equipment, and discloses an energy-saving type starter control system with a self-protection function. The energy-saving type starter control system with the self-protection function comprises a compound relay, a starting unit, a reset unit and a self-protection unit; the compound relay, the starting unit and the reset unit are in electrical connection, and the self-protection unit balances the starting unit and the reset unit through magnetic force. According to the technical scheme, a permanent magnet is adopted to replace an original holding coil to improve the technical scheme, the design that neutral points of an engine is matched with a return coil control device in a voltage matching mode is utilized, the energy consumption problem, in the prior art, of the holding coil is solved, a gear reducer device can be prevented from being additionally installed or the rated power and the boundary dimension of a starter can be prevented from being reduced, and the cost of the starter and a vehicle is saved; meanwhile, the system has the self-protection function and the function of preventing secondary starting and igniting caused by misoperation, and the service life of equipment such as the starter, a storage battery and flywheels is prolonged.

The invention relates to a full-automatic electric shock prevention pole climbing device for power engineering maintenance. The full-automatic electric shock prevention pole climbing device for powerengineering maintenance includes a climbing machine body, a supporting frame, a supporting machine body and an electric shock prevention seat; the supporting frame is fixedly connected to the middle of the left end of the climbing machine body; the supporting frame is arc-shaped; the supporting machine body is fixedly connected to the tail end of the other end of the supporting frame; front and rear symmetrical fixed guide posts are fixedly connected to the top of the supporting machine body; the electric shock prevention seat is sleeved on each fixed guide post; a damping spring surrounding each fixed guide post is arranged on the top of the supporting machine body; the right end of the climbing machine body is cut with first sliding grooves which are symmetrical up and down; each first sliding groove is provided with a power direction conversion groove near the center end of the climbing machine body; and a power direction conversion device is arranged in the power direction conversion groove.

The invention relates to a steering wheel hand-off detection method, which is characterized in that it comprises: acquiring a hand torque signal; performing windowing processing on the hand torque signal to obtain a set of window data; performing frequency domain analysis on the window data and Calculate the low-frequency signal energy and value; perform time-domain analysis on the window data and calculate the signal mean square error and signal extreme value difference; judge whether the driver is interested in the steering wheel according to the low-frequency signal energy and value, signal mean square error and signal extreme value difference In the hands-off state, if it is, the lane keeping assist driving function will be suppressed. Through the combination of time domain analysis and frequency domain analysis, this method can directly analyze the hand torque signal provided by the electro-hydraulic steering gear, which not only saves the cost, but also improves the accuracy of the judgment results of the steering wheel's hand-off and in-hand status .

The invention relates a using method of a compound mineral medicament. The compound mineral medicament comprises an A medicament formed through spiral extruding granulation by using magnesium mineraland NaOH as raw materials and a B medicament formed through high-speed tabletting by using Ca(OH)2, the magnesium mineral and NaOH as raw materials respectively. Raw water in a lead-acid storage battery enterprise goes through a raw water tank, an oil separation tank, an A medicament dosing tank, an A medicament reaction tank, a B medicament dosing tank, a C medicament dosing tank, a polyacrylamide (PAM) flocculation tank, an inclined plate sedimentation tank, a mechanical filter and a clean water tank which are connected in sequence, so that effluent water reaches the standard. According to the using method of the compound mineral medicament, NaOH can be replaced, so that the risk and cost of wastewater treatment are reduced, the addition of sodium salt is avoided, the concentration of sulfate is reduced, the conductivity is lowered, and the reuse of recycled water is realized; and callback is carried out without using sulfuric acid in the treatment process, so that close-loop production of lead element is guaranteed.

The invention discloses a digital servo control system which comprises a parameter monitoring unit, a servo execution unit, a display and IO equipment which are all connected with a servo data operation unit, wherein the parameter monitoring unit monitors parameters required by the servo control system and transmits data to the servo data operation unit; and through operation analysis of an internal specific control algorithm and a control strategy, a control signal is output to the servo execution unit, and the display and the IO equipment respectively display system data and an operating system instruction. Compared with the prior art, the digital servo control system and the control method have the advantages that accurate tracking can be realized, and the array can be subjected to state adjustment; and during tracking, cluster optimization control is performed on the whole array, so that the array can work in an optimal state.

The invention belongs to the field of electrical assembly, and in particular relates to a high-pressure tooling. The high-pressure tooling comprises a circular tooling body and ring-shaped grooves, wherein mounting washer rings are respectively installed in the ring-shaped grooves, and rigid springs are respectively welded on the bottom surfaces of the mounting washer rings. The high-pressure tooling avoids the additional installation of an equal-height cushion block, thus being more convenient to use.

The invention provides a vehicle ramp slope identification method and device. The method comprises the steps: obtaining the average wheel speed of front wheels, the average wheel speed of rear wheels,the engine torque change rate, the brake master cylinder pressure and the longitudinal acceleration measured by an inertial acceleration sensor of a vehicle; performing filtering differential processing on the average wheel speed of the rear wheel and the average wheel speed of the front wheels to obtain a rear wheel acceleration filtering value and a front wheel acceleration filtering value; filtering the longitudinal acceleration measured by the inertial acceleration sensor to obtain an inertial longitudinal acceleration filtering value; and determining the slope angle of the vehicle on a ramp according to the difference between the rear wheel acceleration filtering value and the front wheel acceleration filtering value, the engine torque change rate, the brake master cylinder pressureand the difference between the rear wheel acceleration filtering value and the inertia longitudinal acceleration filtering value. According to the identification method, the ramp is identified by adopting the existing sensor of the vehicle, so that the control of the vehicle can be corrected, the cost can be saved, and the accuracy of the obtained ramp slope can be effectively ensured to be higher.

The invention discloses a digital servo control system, which includes a parameter monitoring unit, a servo execution unit, a display and an IO device all connected to a servo data calculation unit, wherein the parameter monitoring unit monitors the parameters required by the servo control system and transmits the data to The servo data operation unit outputs control signals to the servo execution unit through internal specific control algorithm and control strategy operation analysis, and the display and IO devices display system data and operating system instructions respectively. Compared with the prior art, the present invention can not only accurately track, but also adjust the state of the array; while tracking, it can perform cluster optimization control on the entire array to make it work in the best state.

The invention provides a frame template for roadbed and pavement engineering construction, which relates to the technical field of roadbed and pavement construction. The frame template for roadbed andpavement engineering construction comprises a bottom plate, a baffle is fixedly installed at the left end of the bottom plate, a positioning column is fixedly installed at the top end of the left side of the bottom plate, a limiting plate is connected to the positioning column in a limiting mode, a groove is formed in the bottom end of the limiting plate, a rotating block is rotatably connected to the right end of the limiting plate, and the top of the limiting plate is sleeved with a sleeve plate. According to the frame template for roadbed and pavement engineering construction, the limitingplate can be stably fixed by rotating the threaded rod on one side, steel sticks are prevented from being additionally arranged on the two sides of the limiting plate, so that pavement paving is morecomplete, high in firmness and convenient to disassemble, meanwhile, the limiting plate can stably incline towards the inner side of a roadbed, the top end of the edge of a pavement inclines towardsthe inner side, and the phenomenon that the edge is prone to collapsing is avoided.

The invention relates to a full-automatic electric shock prevention pole climbing device for power engineering maintenance. The full-automatic electric shock prevention pole climbing device for powerengineering maintenance includes a climbing machine body, a supporting frame, a supporting machine body and an electric shock prevention seat; the supporting frame is fixedly connected to the middle of the left end of the climbing machine body; the supporting frame is arc-shaped; the supporting machine body is fixedly connected to the tail end of the other end of the supporting frame; front and rear symmetrical fixed guide posts are fixedly connected to the top of the supporting machine body; the electric shock prevention seat is sleeved on each fixed guide post; a damping spring surrounding each fixed guide post is arranged on the top of the supporting machine body; the right end of the climbing machine body is cut with first sliding grooves which are symmetrical up and down; each first sliding groove is provided with a power direction conversion groove near the center end of the climbing machine body; and a power direction conversion device is arranged in the power direction conversion groove.

The invention relates to the field of vehicle engineering and electrical equipment, and discloses an energy-saving type starter control system with a self-protection function. The energy-saving type starter control system with the self-protection function comprises a compound relay, a starting unit, a reset unit and a self-protection unit; the compound relay, the starting unit and the reset unit are in electrical connection, and the self-protection unit balances the starting unit and the reset unit through magnetic force. According to the technical scheme, a permanent magnet is adopted to replace an original holding coil to improve the technical scheme, the design that neutral points of an engine is matched with a return coil control device in a voltage matching mode is utilized, the energy consumption problem, in the prior art, of the holding coil is solved, a gear reducer device can be prevented from being additionally installed or the rated power and the boundary dimension of a starter can be prevented from being reduced, and the cost of the starter and a vehicle is saved; meanwhile, the system has the self-protection function and the function of preventing secondary starting and igniting caused by misoperation, and the service life of equipment such as the starter, a storage battery and flywheels is prolonged.

The invention relates to a boiling heat exchange cooling device for a hydrodynamic retarder. The boiling heat exchange cooling device for the hydrodynamic retarder comprises a water tank, a condenser and an interlayer, wherein the interlayer is arranged on the outer wall of a fixed pulley of the hydrodynamic retarder; an oil flow channel and a spiral cooling flow channel are formed in the interlayer; an inlet of the cooling flow channel is connected with an outlet of the water tank through a water pump; an outlet of the cooling flow channel is connected with an inlet of the condenser; an outlet of the condenser is connected with an inlet of the water tank; the water pump is controlled by a water pump motor; the oil flow channel comprises an oil inlet pipeline and an oil outlet pipeline; an inlet of the oil inlet pipeline is connected with oil outlets of both the water pump motor and a fan motor; an outlet of the oil inlet pipeline is connected with an oil inlet of a working chamber of the hydrodynamic retarder; an outlet of the oil outlet pipeline is connected with oil inlets of both the water pump motor and the fan motor; an inlet of the oil outlet pipeline is connected with an oil outlet of the working chamber of the hydrodynamic retarder; and the fan motor controls a cooling fan to work. The boiling heat exchange cooling device for the hydrodynamic retarder has a good cooling effect and can prevent leakage of transmission liquid.

The cooling equipment comprises a main cylinder, a first side cylinder, a second side cylinder, a sealing plate and a main air pipe, the first side cylinder and the second side cylinder are located on the two sides of the main cylinder, and the main cylinder is rotatably installed between the first side cylinder and the second side cylinder; the two sealing plates are detachably installed in the first side cylinder and the second side cylinder respectively to seal the main cylinder, the main air pipe is horizontally located at the central axis position in the main cylinder, and the two ends of the main air pipe penetrate out of the sealing plates on the two sides respectively. A plurality of branch air pipes for contacting compound fertilizer are arranged on the side surface of the main air pipe, and a plurality of lifting plates for lifting the compound fertilizer are arranged on the inner wall of the main cylinder. According to the invention, air intermittently enters the main cylinder, passes through the air-distributing pipe, is in full contact with compound fertilizer moving from top to bottom and performs heat exchange, and is filtered by the air-distributing pipe when intermittently flowing out, so that the cooling efficiency is improved, the power loss of cold air flowing is reduced, the production cost is reduced, and the flowing-out air is dust-free and meets the environment-friendly emission requirement.

The invention provides a noise assessment and noise optimization method and device for an electric reactor. The noise assessment method for the electric reactor comprises the steps that basic parameter information of each coil in a to-be-measured electric reactor is acquired; according to the basic parameter information, the maximum displacement of each coil is calculated respectively; according to the maximum displacement and the basic parameter information, an effective value of the vibration velocity of each coil is calculated; according to the effective value of the vibration velocity of each coil, the noise level of the to-be-measured electric reactor is evaluated. The noise assessment and noise optimization method and device for the electric reactor have the advantages that the problem that the noise cannot be evaluated in the early design phase of the electric reactor, the assessment method is simple and effective, a basis is provided for performing noise optimization on the electric reactor subsequently, and the noise assessment and noise optimization method and device have guiding significance for noise reduction design of a smoothing reactor.