14results about How to "Precise and effective control" patented technology

The invention discloses a feature classifier-based thinking chain reasoning mathematical problem solving method and system. The method comprises the following steps of: (1) acquiring a mathematical problem set, and selecting forward and reverse thinking chain examples to splice to form a new set; (2) respectively inputting the new set elements into a model for reasoning to construct a word-level reasoning path spanning tree, and selecting an attention weight matrix after pooling difference processing as node features for storage; (3) traversing all the generated reasoning path spanning trees, and screening nodes meeting requirements to construct a feature classifier training set; (4) training a feature classifier by using a support vector machine algorithm; and (5) through the trained feature classifier, participating in path selection in a pre-training language model reasoning process, and obtaining a relatively accurate reasoning process and answers. By means of the method, adjustment and control of finer granularity of the reasoning path of the pre-training language model can be achieved, accurate reasoning solving of the pre-training language model on mathematical problems is facilitated, and the generalization level of the pre-training language model is improved.

The invention discloses a variable-caliber rotatable nozzle and a water spraying propulsion system. The variable-caliber rotatable nozzle comprises multiple sections of flow guide pipes, a rectifying pipe and a variable-caliber nozzle body. The multiple sections of flow guide pipes are sequentially and rotatably connected, the first section of flow guide pipe is connected with an outlet of the water jet propulsion system, and the tail section of flow guide pipe is sequentially connected with the rectifying pipe and the variable-caliber nozzle. Due to the fact that the multiple sections of flow guide pipes are not all arranged along the same axis, the direction of the variable-caliber nozzle can be changed by rotating the flow guide pipes so as to change the direction of outlet jet flow. In addition, the size of the jet flow can be adjusted by adjusting the size of the outlet of the variable-caliber nozzle, so that the adjustment and control of the water jet propulsion system are more accurate, and the control efficiency and the convenience degree of the ship are effectively improved.

The invention discloses a gray level shunting method and device, an application server, a medium and a program product, and relates to the technical field of gray level shunting, and the method comprises the following steps: when a request interceptor of the application server intercepts a current processing request distributed by a gateway, sending the current processing request to the application server; and carrying out gray shunting on the current processing request through a gray shunting module of the application server. According to the invention, finer gray flow control can be provided.

The embodiment of the invention discloses a vehicle power takeoff control method, device and equipment and a medium, the control method is applied to a vehicle provided with a power takeoff, and the control method comprises the steps that firstly, whether the power takeoff of the vehicle enters a working mode or not is judged; the working mode comprises a driving mode or a parking mode; if the power takeoff enters the working mode, a clutch of the power takeoff is controlled to be combined with a driving shaft of the vehicle; the running speed of the vehicle is further obtained, and whether the running speed exceeds the power takeoff calibration speed or not is judged; and the running speed and the power takeoff calibration speed are judged, and if the running speed does not exceed the power takeoff calibration speed, a constant-speed cruise key of the vehicle is controlled to be used for adjusting the rotating speed of the power takeoff. By adopting the control method provided by the embodiment of the invention, the power takeoff can be subjected to adaptive working state adjustment under different conditions, the rotating speed of the power takeoff can be further adjusted better, and the power takeoff can be controlled more effectively and accurately.

The invention belongs to the technical field of mine road surface dust raising control, and particularly relates to a mine truck watering device and a road surface dust raising control method.The mine truck watering device comprises a truck body, a water tank, a first drainage pipe, a second drainage pipe, a nozzle assembly, a measuring system and a control system; an electric pressurizing device for adjusting the water flow pressure is arranged on the second drainage pipe; the nozzle assembly is used for spraying water to the rear and side faces of the vehicle body. The measuring system is used for detecting the road width in real time. The method comprises the following steps: monitoring the moisture content of a soil surface layer through a soil moisture sensor, comparing the moisture content with a preset threshold value, and then controlling a mine truck watering device to carry out watering operation according to a set watering process according to a comparison result. The water sprinkling device can be automatically and electrically controlled in the whole process, the labor intensity of workers is relieved, the working efficiency of the water sprinkling device is improved, and water sprinkling operation can be accurately carried out.

The invention discloses a sound reinforcement method and system based on active sound field control, electronic equipment and a medium, and relates to the technical field of sound field control. Sound field information is determined, and a sound field propagation model is constructed according to the sound field information; constructing a sound field monitoring network corresponding to the sound field propagation model, collecting sound field information according to the sound field monitoring network, and transmitting the sound field information to the sound field propagation model for demonstration to obtain a demonstration result; tracing corresponding sound reinforcement equipment in the sound field propagation model according to the demonstration result, and performing adjustment to obtain an adjustment model; and the sound field information adjusted by the sound reinforcement equipment is collected through the sound field monitoring network, and the sound reinforcement equipment is continuously adjusted to be stabilized on the sound field threshold value. According to the invention, the corresponding sound reinforcement equipment can be traced according to the difference information and the corresponding sound field monitoring point for adjustment, and the effective control of the sound field is realized.

The utility model discloses a chain tensioning device for a tape winder, and relates to the field of chain tensioning. The chain tensioning device for the tape winder comprises a first installation part and a second installation part, a movable tensioning wheel is arranged on the outer wall of the first installation part, a fixed tensioning wheel is arranged on the second installation part, a hydraulic cylinder is installed between the first installation part and the second installation part, and a pressure sensor is arranged below the movable tensioning wheel. According to the chain tensioning device for the tape winder, a hydraulic cylinder is started, a first mounting part is pushed to rotate, the distance between a movable tensioning wheel and a fixed tensioning wheel is increased, a chain is tensioned, at the moment, the movable tensioning wheel has the trend of moving downwards along a supporting shaft, pressure is transmitted to a pressure sensor through a spring, and the pressure sensor monitors the pressure value in real time; and when the pressure reaches a threshold value preset by a program, the hydraulic cylinder is controlled to stop stretching according to a feedback signal, so that the chain is kept in a reasonable tensioning state, the structure is simple, and control is accurate and effective.

The invention discloses a detection system and a detection method for trace iron in a manganese sulfate solution. The detection system comprises a liquid supply unit, a detection unit and a control unit, the detection unit comprises a detection tube, a light source emitter and a light source receiver, the light source emitter and the light source receiver are arranged on the two sides of the detection tube respectively in the diameter direction of the detection tube, a stirring assembly is arranged in the detection tube, and a liquid outlet controlled by an electromagnetic valve to be opened and closed is formed in the bottom of the detection tube; the liquid supply unit is connected with the detection pipe through a liquid adding pump and a pipeline and supplies liquid to the detection pipe; the control system is used for controlling the light source emitter, the light source receiver and all the liquid adding pumps; the detection method is realized by adopting the detection system. According to the detection system and the corresponding detection method, the detection efficiency and the detection precision can be effectively improved, and the labor cost is remarkably reduced, so that online detection of trace iron in the manganese sulfate solution and real-time monitoring of the iron content are realized, and efficient information feedback is provided for production.

The invention provides a shutdown method, device and system of a fuel cell system and a vehicle, the method is applied to the technical field of fuel cells, and the method comprises the following steps: receiving a shutdown instruction of the fuel cell system, and obtaining stack impedance of the fuel cell system based on the shutdown instruction; based on the stack impedance, judging whether the fuel cell system meets a preset shutdown condition or not; and if the fuel cell system does not meet the preset shutdown condition, purging a fuel cell cathode in the fuel cell system until the fuel cell system meets the preset shutdown condition, and controlling the fuel cell system to be shut down. According to the method, whether the water content of the fuel cell meets a certain requirement or not is judged through the electric pile impedance of the fuel cell system, and the problems that the water content control is inaccurate and the next start-up is influenced due to the fact that the water content is controlled through regular purging in the prior art are solved, so that the water content state of the fuel cell is more accurately and effectively controlled, and the efficiency is improved. And the next starting of the fuel cell system is facilitated.

The invention provides an intelligent bonding copper wire equipment cluster control method and system based on environment Internet of Things, and relates to the technical field of bonding copper wire production control. The method comprises the following steps: acquiring cluster production control historical data, and performing monitoring feature extraction based on a monitoring category to form cluster production control parameter feature data; and collecting cluster production control real-time data, and performing production state analysis in combination with the cluster production control feature data to form production state real-time monitoring result data. According to the method, a monitoring system aiming at the control form of the whole bonding copper wire production cluster is constructed by utilizing the environment internet of things, so that an intelligent regulation and control data basis is provided for fully meeting the high-precision and high-quality production control requirements of the bonding copper wires.

The utility model relates to a hinge structure of a side opening door, which comprises a first hinge component and a second hinge component which are respectively arranged on a door frame and a door, a limiting groove is formed in the surface of the side, assembled and connected with the second hinge component, of the first hinge component, a shaft hole is formed in the bottom face of the limiting groove, and the limiting groove is further provided with a door closing abutting wall and an opening abutting wall. A shaft part is arranged at the end, assembled and connected with the first hinge component, of the second hinge component, a limiting block is arranged on the peripheral side surface of the shaft part, and the limiting block is provided with a first abutting surface and a second abutting surface; the shaft part is movably inserted into the shaft hole, and the limiting block is located in the limiting groove. When the first hinge component and the second hinge component rotate relatively, the shaft part rotates in the shaft hole, the limiting block rotates back and forth in the limiting groove, in the process, the first abutting face abuts against the door closing abutting wall, or the second abutting face abuts against the opening abutting face, the opening angle of a door is effectively and accurately controlled, the structure is simple, and operation is convenient. And the production and processing difficulty and cost are low.

The invention provides a crankcase ventilation control method and a vehicle, the method is applied to a crankcase ventilation control system, and a crankcase in the system communicates with an air inlet unit through an air supplementing pipeline; an air supply valve is arranged on the air supply pipeline; the method comprises the steps that the hydrogen concentration in a crankcase is determined based on the obtained engine rotating speed and output torque; in response to the fact that the hydrogen concentration in the crankcase is larger than or equal to a preset concentration value, the gas supply opening degree of a gas supply valve is determined; and the opening degree of a gas supplementing valve is adjusted to the gas supplementing opening degree, so that the hydrogen concentration in the crankcase is reduced to be lower than a preset concentration value. By controlling the opening degree of the air supply valve, the air supply amount entering the crankcase is effectively controlled, namely, the hydrogen concentration in the crankcase can be rapidly controlled within a reasonable range, and the explosion risk is avoided.

The utility model discloses a kind of multi-channel intelligent temperature control box applied to flexible surface heating system, it is characterized by;Remote controller (1) is connected temperature control module (2), concentrator (3) respectively by wire, temperature control module (2) is connected concentrator (3), relay module (4), switching power supply (5), input-output module (9) respectively by wire, concentrator (3) is connected man-machine interface (13) by wire, relay module (4) is connected terminal (6), input-output module (9) respectively by wire, switching power supply (5) is connected terminal (6) respectively by wire, terminal (6) is connected power circuit breaker (8), input-output module (9) respectively by wire, load power switch (7) is connected power circuit breaker (8) by wire.The utility model modularization integration, visualization, and easy operation, convenient to use.

The invention provides a multi-way valve and a vehicle, the multi-way valve comprises a valve body, the valve body comprises a bottom wall, the bottom wall is provided with a first channel and a plurality of second channels, the first channel and the second channels are arranged in the axial direction in a penetrating mode, and the second channels are arranged on the periphery of the first channel in the circumferential direction; the valve element is provided with an end face facing the bottom wall, a first groove and a second groove which are not communicated with each other are formed in the end face, the first groove comprises a central groove and a circumferential groove, and the central groove and the first channel at least partially coincide in the axial projection; at least part of the projection of the circumferential groove in the axial direction coincides with at least part of the projection of at least one second channel in the axial direction, and at least part of the projection of the second groove in the axial direction coincides with at least part of the projections of at least two second channels in the axial direction. The valve element can rotate around the axial direction relative to the valve body, and the circumferential grooves communicate with different second channels in sequence. The vehicle comprises the multi-way valve. According to the invention, liquid channels can be conveniently and efficiently switched, and the flow of each channel can be accurately regulated and controlled.