382results about How to "Stable working condition" patented technology

The invention relates to the technical field of chip heat dissipation, in particular to a computer chip liquid cooling heat dissipation system and method. The heat dissipation control module is used for outputting a control instruction according to the temperature difference value, constructing a chip temperature prediction model, obtaining a chip temperature prediction value, adjusting a judgment result of a heat dissipation mode according to the chip temperature prediction value, and correcting a safe working temperature value according to the use duration of the chip; and the execution feedback module is used for controlling the cooling liquid adjusting device according to the control quantity, outputting alarm information according to the cooling liquid flow, constructing a preset flow dynamic adjusting model and obtaining preset flow automatic adjusting information according to the real-time environment temperature data and the real-time computer load data. According to the invention, the potential overheating risk can be found in time, and the stability and reliability of the system are improved.

The invention relates to a scissor type unfolding mechanism which comprises a top short rod assembly, scissor type stage group rod piece units, a bottom supporting rod assembly, a driving unit assembly and an unfolding in-place indicating switch, the unfolding mechanism is connected with an unfolded object through the top short rod assembly, and the multiple stages of scissor type stage group rod piece units are connected through hinge shafts to form a multi-stage unfolding mechanism. The long rods of the multiple stages of unfolding mechanisms are connected in sequence; the bottom supporting rod assembly is connected with the driving unit assembly, the driving unit assembly drives the bottom supporting rod assembly to achieve unfolding and folding of the unfolding mechanism, after the unfolding mechanism is unfolded, a stable triangular structure is formed through the bottom supporting rod assembly, the scissor type stage group rod piece units and the limiting devices, the structural rigidity is improved, and the unfolding mechanism is controlled to be unfolded.

The embodiment of the invention provides a manipulator control method and system, and the method comprises the steps: generating a control instruction, carrying out the compression processing of the control instruction, and transmitting the compressed control instruction to a manipulator through a wireless module; determining a delay index according to the receiving time of receiving the execution result data and the sending time of sending the execution result data by the manipulator; wherein the execution result data is obtained by executing corresponding actions by the manipulator according to the received control instruction and is sent to the control end; determining a synchronization index according to the delay index and the interference index of the detected signal in the transmission process; and when abnormal synchronization is judged according to the synchronization index, optimizing a processing method of a control instruction and / or a transmission method of a wireless module. Through continuous synchronism detection and optimization adjustment, it can be guaranteed that the system keeps a stable and normal working state for a long time, the synchronization performance is improved, and the control precision of the manipulator is guaranteed.

The invention relates to the technical field of chemical rectification equipment, in particular to a method and device for improving rectification purity by adjusting the reflux ratio, and the method comprises the following steps: determining the total reflux position and the total extraction position of a liquid separation module; an initial position is set, and the liquid separation module is deflected to the initial position; collecting distillate and analyzing the purity of the distillate; the obtained purity is compared with the set purity, and the deflection direction of the liquid separation module is determined; the liquid separation module is adjusted to deflect towards the determined deflection direction; the measurement position is obtained until the purity of the distillate reaches the maximum; and performing rectification treatment on the to-be-treated liquid according to the screened measurement position so as to improve the rectification purity of the to-be-treated liquid. Through mutual cooperation of all the units, multi-point adjustment of the swing position of the liquid separation module between total reflux and total extraction can be realized, so that the reflux ratio is accurately controlled, and the rectification purity is improved.

The invention discloses a data fusion method and system for a fire detection sensor, relates to the technical field of data fusion, remarkably improves the reliability and accuracy of the system, and solves the problems of false alarm, missing report, environmental interference, sensor fault and the like. By introducing a detailed anomaly detection module and a multi-level threshold evaluation mechanism, the system can accurately distinguish normal fluctuation and real fire signals, and reduces false alarm and missing alarm; in addition, the environment monitoring module calculates an environment interference coefficient in real time and compares the environment interference coefficient with a threshold value, so that the influence of environment factors on the detection accuracy is effectively dealt with, and the detection reliability is improved. The safety fault-tolerant module monitors the state of the sensor and the data transmission process in real time to ensure that a data compensation mechanism is started when the sensor fails or data is lost, so that the fault-tolerant capability of the system is enhanced; the comprehensive measure ensures the stability and accuracy of the system under various interference and fault conditions.

The intelligent cutting equipment comprises a supporting frame, a pipe conveying mechanism, a pipe rotating mechanism and a cutting mechanism, the side face of the cutting mechanism is provided with a flow adjusting mechanism and a self-adaptive spray head, the pipe conveying mechanism comprises a sliding table, a lead screw and a first motor, the sliding table is slidably connected with the supporting frame, and the lead screw penetrates through the sliding table to be in threaded connection with the sliding table; the pipe rotating mechanism comprises a rotating disc, a chuck and a second motor, the rotating disc is rotationally connected with the supporting frame, the second motor is rotationally connected with the rotating disc through the synchronous belt and the synchronous wheel, the chuck is fixedly installed on the rotating disc, and the cutting mechanism comprises a laser cutting head and a telescopic air cylinder. The cutting mechanism is installed on the top of the supporting frame, and a cooling flow channel is formed in the side wall of the laser cutting head. The problem that in the prior art, a laser cutting head cooling refrigerant cannot be adjusted in a self-adaptive mode according to the cutting head, so that resources are wasted or the cooling effect is poor is solved.

The utility model relates to the technical field of natural gas extraction equipment, and particularly discloses a novel slip type underground throttler which comprises a mandrel, a central pipe, a fishing mechanism, a slip, a cone, a transition sleeve and a rubber sleeve. The central pipe is connected with the mandrel in a sleeved mode and connected with the slip, the cone and the rubber barrel in a sliding mode, the central pipe is connected with a limiting step and a locking mechanism, the limiting step is connected with the slip, the mandrel is connected with a nut, a connecting mechanism and an air nozzle, the transition sleeve is connected with a baffle ring and a standby cap, and the locking mechanism is connected with the locking mechanism. The back-up cap is connected with the nut, the baffle ring abuts against the rubber sleeve, the fishing mechanism is connected with the mandrel, and the problem that in the prior art, a conventional slip type flow controller is slightly blocked in the throwing process, and mistaken setting is likely to be generated is solved.

The utility model relates to a laser automatic frequency locking system based on similarity identification spectrum, comprising a laser, a spectrum module, a digital PID feedback controller and an automatic frequency locking operation system, the automatic frequency locking operation system is used for determining a locking point of a received spectrum signal based on a similarity identification algorithm, and determining a corresponding automatic frequency locking parameter based on the locking point, and performing PID locking control on the laser by the digital PID feedback controller based on the automatic frequency locking parameter of the locking point. The scheme has the advantages of small environmental influence interference, more stable working state, wide application range and high working efficiency.

The utility model discloses a durable coupling, which comprises an upper coupling, a rubber ring and a lower coupling, and is characterized in that one end of the rubber ring is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a rubber block, an upper mounting block is fixedly connected above the upper coupling, an upper mounting opening is formed above the upper mounting block, and a lower mounting opening is formed above the lower mounting block. An upper clamping plate is fixedly connected below the upper coupler, a lower mounting block is fixedly connected below the lower coupler, and a lower mounting opening is formed below the lower mounting block; through the multi-group design of the rubber rings, the connecting blocks and the rubber blocks, the coupler can still keep a stable working state when bearing large torque or vibration, so that the reliability of a whole transmission system is improved, the service life of the whole transmission system is prolonged, and the problems that most of existing couplings take screw rods as elastic elements, do not have the buffering and damping effects, and are not easy to deform are solved. And an iron casting is sleeved with an elastic sleeve pin, a casting sleeve is prone to cracking under the large-torque mechanical energy transmission effect, and noise is prone to being generated in the operation process.

The invention discloses a warming-up method, device and equipment of a fuel cell system and a storage medium, and the method comprises the following steps: after the fuel cell system is started, controlling the fuel cell system to enter an idle running state; controlling the fuel cell system to enter a warm-up state according to the operation parameters of the fuel cell system in the idling operation state; and according to the current total voltage of the electric piles of the fuel cell system or the current lowest single-piece voltage of the electric piles of the fuel cell system, loading warm-up current to the electric piles in the fuel cell system. Therefore, no matter whether the fuel cell system is at a low temperature or a normal temperature, quick warming of the fuel cell system can be realized by utilizing heating in the process of controlling the warming current, so that the fuel cell system can be ensured to quickly enter a stable working state; and the speed and the stability of the fuel cell system during low-temperature or normal-temperature starting are improved.

The invention discloses an automatic control method for cloth winding and unwinding of a sludge filter press, which comprises the following steps: acquiring real-time running state data of an execution roller, a cloth winding and unwinding roller and a distance measuring sensor, and intelligently judging a working mode and a running stage of cloth winding and unwinding of the sludge filter press; according to the current cloth winding and unwinding working mode and operation stage of the sludge filter press, an operation control strategy of a cloth winding and unwinding roller is flexibly selected and adjusted; according to the selected control strategy, an advanced dynamic control algorithm is adopted, and the running speed of the cloth winding and unwinding roller is automatically controlled in real time; by monitoring the roller diameter of the cloth winding and unwinding roller in real time, the execution and the ending of the cloth winding and unwinding work of the sludge filter press are automatically judged. According to the application, a cloth winding and unwinding control mechanism of the sludge filter press is optimized, efficient and stable automatic operation is realized, and the running speed of the cloth winding and unwinding roller can be automatically controlled in real time by adopting different control strategies according to different working modes, so that the sludge filter press can maintain a stable and efficient working state when executing cloth winding and unwinding operation.

The utility model discloses a material distribution device for a blanking bin of a corn harvester, which is mounted on a frame of the corn harvester and arranged on the side surface of the outlet end of a peeling roller, a plurality of cross beams are arranged on the frame, the material distribution device comprises a first material bin and a second material bin, and the first material bin and the second material bin are respectively arranged on two sides of the frame through fixed connecting pieces. A first adjusting base is arranged on the side face of the first stock bin and connected with a first guide plate through bolts, the right end of the first guide plate is arranged on the inner side of the first stock bin, a second adjusting base is arranged on the side face of the second stock bin and connected with a second guide plate through bolts, and the left end of the second guide plate is arranged on the inner side of the second stock bin. And a mounting plate is arranged between the cross beams on the inner side of the frame. According to the utility model, the turnover angle can be mechanically controlled, the labor intensity is reduced, and the working state is stable.

The invention aims to provide a reinforcement learning-based dynamic connection optimization method for high-frequency wire harnesses of new energy equipment, and relates to the technical field of new energy, and the method comprises the steps: 1, collecting the operation data of each battery module of the new energy equipment, and building a state vector in combination with the high-frequency wire harness characteristic data of each high-frequency wire harness in the new energy equipment; 2, calculating a predicted temperature distribution vector based on the state vector and the temperature distribution vector; based on the state vector, the high-frequency wire harness stress and the predicted temperature distribution vector, constructing a state space and an action space of a reinforcement learning model; 3, defining a reward function of the reinforcement learning model; and completing dynamic connection optimization of the high-frequency wire harness in an iterative optimization mode. According to the invention, the stability, the energy efficiency and the safety of the system are obviously improved, and the service life of the high-frequency wire harness and the connection point is effectively prolonged.

The utility model discloses a grate cooler air inlet valve port which comprises an air inlet shell, an air inlet and an air outlet are formed in the air inlet shell, a rotary adjusting mechanism used for adjusting the air inlet area is arranged at the air inlet, and the rotary adjusting mechanism comprises air inlet baffles symmetrically arranged relative to the air inlet. The air inlet baffle and the air inlet shell are connected in a rotating fit mode through a rotating rod, and the air inlet area of the air inlet is adjusted by controlling the rotating angle of the air inlet baffle. According to the grate cooler, the mode that the two baffles are synchronously opened and closed is adopted, the air inlet amount can be easily controlled, the working condition of the grate cooler during working is effectively stabilized, it can be guaranteed that the positions of the baffles are stable, installation is convenient, and the problem that a large amount of time is wasted due to the fact that an air adjusting device is independently installed on an existing grate cooler is solved.

The invention relates to the technical field of agricultural mechanical equipment, and discloses a light power chassis suspension rack device based on a field soil bin and a using method of the light power chassis suspension rack device based on the field soil bin. The light power chassis suspension rack device comprises a walking trolley, a walking beam, a testing trolley, a walking track, a hooking device, a suspension rack and a testing system unit. The walking tracks are arranged in parallel, the front side part and the rear side part are movably installed on the walking tracks respectively, the two ends of the walking beam are connected with the front side part and the rear side part respectively, the test trolley is movably installed on the walking beam, the suspension rack is connected with the hanging device through the connecting device, and the hanging device is connected with the test trolley. The test system unit is installed on the suspension rack. According to the invention, modular design is realized, the overall structure is compact, modification and debugging can be carried out according to actual field requirements, mounting and dismounting are convenient, the working state is stable, vibration characteristics and rules can be clearly explored, and various data under real field working conditions can be measured.

The invention discloses a floating type photovoltaic platform capable of actively absorbing waves. The floating type photovoltaic platform comprises a platform floating body and an active wave absorbing device, the platform floating body comprises a plurality of platform buoys, and the platform buoys are connected through flexible connecting pieces; the active wave absorbing device is connected with the platform floating body; the active wave absorbing device comprises an active wave absorbing plate, an active wave absorbing cabin floating body and a propelling rod; a radar wave measurement sensor is arranged on the active wave absorbing cabin floating body, and a control module is arranged in the active wave absorbing cabin floating body; one end of the propelling rod is connected with the active wave-absorbing cabin floating body, and the other end of the propelling rod is connected with the active wave-absorbing plate; the control module controls the pushing rod to stretch out and draw back according to data of the radar wave measurement sensor, the active wave absorbing plate is driven to move, the technical problems that the sea environment wave condition is poor, and the wave resisting effect of the floating type photovoltaic platform is poor are solved, and the structural strength and stability of the whole platform are enhanced.

The invention discloses an automobile load power supply circuit and device, and relates to the technical field of power control, the automobile load power supply circuit comprises a first switch circuit, a second switch circuit and a third switch circuit, when an automobile ignition switch is closed, the first switch circuit is conducted, then the third switch circuit is conducted, and the second switch circuit is switched on; when the automobile ignition switch is switched off, the controller and / or the transceiver controls the first switching circuit to be switched on, and / or the controller controls the second switching circuit to be switched on, so that the third switching circuit is maintained to be switched on, and a control signal can be output through the automobile ignition switch or the control signal can be continuously output through the transceiver. When the controller is reset or breaks down, the self-locking function and power supply of the automobile load power supply circuit are still maintained, and the stable working state of the circuit is guaranteed.

According to the surface water sampling port position adjustable sampling device and the control method, the device comprises a buoy body used for providing buoyancy, a sampling mechanism used for collecting a water sample and a control mechanism used for monitoring water quality parameters and controlling the operation posture of the sampling mechanism, and the sampling mechanism comprises a sampling pipe, a telescopic rod and a rotating assembly; through cooperation of the telescopic rod and the rotating assembly, flexible and accurate adjustment of the sampling opening in the water depth and the horizontal direction is achieved, and accurate sampling is conducted according to the water quality distribution characteristics; the control method comprises the steps of initialization and self-inspection, sending of a control instruction, analysis of the instruction and calculation of action parameters, control of operation postures of the telescopic rod and the rotating assembly, collection of a water sample and monitoring of water quality parameters, analysis of the water quality parameters and returning to an initial state, and the whole sampling process is automatically completed by the control mechanism. Water quality parameters are compensated through calculation of correction factors, and the accuracy of water quality detection is improved.

The utility model discloses a pipeline detection robot which comprises a detection body, two sides of the detection body are connected with a crawler belt through a positioning frame and a connecting shaft, an adsorption magnet block is arranged along the crawler belt, and a movable monitoring device is arranged close to the front end of the detection body. Telescopic mechanisms arranged on the two sides of the movable monitoring device are further arranged in the detection body, the telescopic mechanisms comprise the first telescopic mechanism and the second telescopic mechanism, and the detection device is detachably connected to the telescopic mechanisms; the output end of the movable monitoring device is connected with the output line pipe end through a connecting interface, and the movable monitoring device is connected with a transceiving control circuit board formed by taking a single-chip microcomputer as a main chip through a connecting line. According to the utility model, the movable monitoring device is promoted to ascend and descend in different designated areas during detection in an up-and-down ascending and descending manner, and the hidden detection device is adopted to detect and observe the surrounding environment, so that the detection device can be better protected.

The invention relates to the technical field of rapeseed treatment, and provides a preliminary treatment device and method for mechanical harvesting of oilseed rape, the preliminary treatment device comprises a device shell and a rotating rod, a fixed screen frame is fixed to the top of the device shell through bolts, a servo motor is fixedly installed in the fixed screen frame, and a rotating shaft is fixedly welded to an output shaft of the servo motor; a discharging treatment assembly is installed on the device shell, a multifunctional screening assembly is installed on the device shell, a fourth filter screen plate is fixedly connected to the interior of the device shell, a push plate is fixedly welded to a rotating shaft, a sealing plate is slidably connected to the side end of the bottom of the device shell in a penetrating mode, and a discharging pipe is connected to the bottom of the device shell. The discharging treatment assembly comprises a storage barrel. By means of the technical scheme, the problem that in the prior art, primary treatment equipment for mechanical harvesting of oilseed rapes cannot remove large-size impurities and small-size impurities separately is solved.

The utility model discloses a chemical kettle mixing device, which belongs to the technical field of chemical reaction kettles and comprises a support table, a reaction kettle body and a filling port, the reaction kettle body is fixedly connected to the upper surface of the support table, the filling port is fixedly connected to the upper surface of the reaction kettle body, a filter component is arranged in the filling port, and the filter component is fixedly connected to the upper surface of the reaction kettle body. And the filtering assembly comprises a filtering frame, the filtering frame is in lap joint with the interior of the injection port, and a supporting rod is fixedly connected to the interior of the filtering frame. The chemical kettle mixing device has the beneficial effects that by arranging the filtering assembly, when people need to screen materials, people only need to pour the materials into a filtering frame, then a rotary knob is rotated to drive a stirring shaft to rotate, and the materials in the filtering frame are turned over under the cooperation of the stirring shaft and the filtering frame, so that the materials in the filtering frame are filtered out; qualified materials can fall into the reaction kettle body, and the situation that the mixing reaction quality is low in the mixing reaction process of the materials is avoided.

The utility model relates to the technical field of drill bits, and discloses a drill bit with a cooling structure, which comprises a drill rod, a mounting port is arranged on the arc-shaped outer wall of the drill rod, a cooling mechanism is arranged in the drill rod, and the cooling mechanism comprises a communicating pipe, a conveying pipe, a spiral cylinder, a contact groove, a flowing cavity, a shunting block and an arc-shaped groove. A mounting hole is formed in the top of the drill rod, a communicating pipe is fixedly mounted on the inner wall of the mounting hole, and a conveying pipe is fixedly connected to the bottom end of the communicating pipe. According to the drill bit with the cooling structure, the cooling mechanism is arranged and matched with circulation of cooling liquid in the spiral barrel and the conveying pipe, so that the drill rod is cooled, the contact area of the cooling mechanism for heat exchange in the drill rod is enlarged through the arrangement of the contact groove, and meanwhile the cooling mechanism is matched with the flow dividing block arranged in a triangular mode to achieve the flow dividing effect on the cooling liquid in the spiral barrel; the drill rod can obtain a stable cooling effect, and the continuous operation performance of the drill rod is guaranteed.

The invention discloses a high-pressure-bearing maintenance-free energy dissipation steel support and belongs to the technical field of bridges and building supports. A sliding wear-resisting plate is fixedly connected into a groove of a spherical crown steel lining plate, and the sliding wear-resisting plate and a support top plate form a sliding friction pair used for achieving horizontal sliding; the sliding wear-resisting plate is made of a self-lubricating wear-resisting material; the rotating sliding plate is fixedly connected into the groove of the support bottom plate, and the convex spherical surface of the spherical crown steel lining plate and the rotating sliding plate form a rotating friction pair for realizing rotating fit; the rotating sliding plate is made of one or more of a self-lubricating wear-resistant material, performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene and a modified polytetrafluoroethylene material; the convex spherical surface of the spherical crown steel lining plate is made of an anti-corrosion wear-resistant material; the guide blocks are arranged in the grooves in the two sides of the support bottom plate, the guide sliding strips are arranged in the cylindrical surface grooves of the guide blocks, the guide sliding strips and the check blocks form a guide sliding width used for guiding the sliding process of the support, and the high pressure bearing performance and the good corrosion prevention effect are achieved.

The utility model relates to the technical field of seat accessories, and discloses a five-claw disc structure for a seat, which comprises a connecting sleeve, a support leg is fixedly mounted on the arc-shaped outer wall of the connecting sleeve, an abutting mechanism is arranged on the inner surface of the connecting sleeve, and the support leg is fixedly mounted on the arc-shaped outer wall of the connecting sleeve. The abutting mechanism comprises a square edge, a rotating rod, an abutting plate, a volute spiral spring, an anti-skid belt and an arc-shaped groove. By arranging the abutting mechanism and matching with the elastic force of the volute spiral spring, the abutting plate is tightly attached to the outer surface of the stool rotating shaft, at the moment, due to the fact that the bottom end of the inserting rod is pushed by the ground and matched with the supporting plate, outward pushing force is generated on the abutting plate, and the abutting plate is kept in the abutting state with the stool rotating shaft; the anti-skid belt and the arc-shaped groove which are arranged in a triangular shape are matched, so that the situation that the stool rotating shaft is not prone to disengagement in the vertical direction after being inserted into the connecting sleeve is avoided, and it is guaranteed that the stool can keep a stable working state after being assembled.

The invention belongs to the technical field of uranium concentration, and particularly relates to an online debugging system and method for a regulating valve of a uranium concentration factory. The system comprises at least two raw material containers, at least three block valves and at least one purification material receiving container, the at least two raw material containers are mutually connected in parallel and are respectively connected to the feeding main pipe loop line through independent branch pipelines; the feeding main pipe loop line is connected with the centrifugal cascade; each branch pipeline is connected in series with a regulating valve; uranium hexafluoride gas is stored in the at least two raw material containers; at least three block valves are connected in series on the feeding main pipe loop line and are respectively positioned between two adjacent raw material containers and between the raw material containers and the centrifugal cascade; and the purifying and collecting container is respectively connected with an outlet of each raw material container through a feeding and purifying pipeline. The regulating valve can be debugged and verified online by using a uranium hexafluoride medium, so that the problem that real working conditions cannot be simulated due to great difference from actual working conditions when static and dynamic debugging and verification are performed offline by using an air medium is solved.

The utility model discloses a rice processing and drying device, which belongs to the technical field of rice processing and comprises a support table, a support arm and a transmission mechanism, the support arm is fixedly connected to the upper surface of the support table, and the transmission mechanism is arranged in the support arm. By arranging a transmission mechanism, a stirring paddle and an air heater, when rice needs to be dried, a first motor is controlled to operate through a control switch, so that a threaded column is driven to rotate, a movable table carrying the stirring paddle is driven to move under the cooperation of the threaded column and a threaded cap, and after the movable table moves to a designated position, the stirring paddle is driven to rotate; people only need to control the first motor to stop operating through the control switch and then control the second motor to operate through the control switch, so that the stirring paddle is driven to rotate, rice in the filter drum is uniformly stirred under the cooperation of the stirring paddle, and finally the air heater is controlled to operate through the control switch.

The invention discloses an indoor high-precision visible light positioning method for a complex dynamic crowd environment, relates to the technical field of indoor visible light communication, and aims to solve the problems in the prior art. Performing initial position calculation based on a quadrilateral measurement method in combination with the phase and intensity information of the optical signal; optimizing the initial position of the receiving end by using a QPSO algorithm; an infrared sensor collects crowd density and dynamic changes in an area in real time and generates a thermodynamic diagram, the influence of crowd flow on a light field is predicted based on a hydromechanics eddy current model in combination with an RNN network, a crowd flow eddy current model is generated, optical signals of a receiving end are optimized through a CVPA algorithm, and signal characteristics are dynamically adjusted through the eddy current effect; the FPGA carries out accurate tracking and positioning updating on the position of the APD receiving end through an EKPF filter; the weights of the QPSO, the CVPA and the EKPF are adjusted in a self-adaptive mode; and the FPGA obtains the final accurate position coordinates of the receiving end through multiple iterations. The method is suitable for real-time positioning of high-density crowds.

The invention relates to the technical field of particle detection, in particular to a SiPM test and calibration method and system for particle detection application, and the method comprises the following steps: extracting a slope quadratic difference set to determine a current change inflection point, calculating a local slope change proportion set to obtain a breakdown breakover voltage point, analyzing the output pulse triggering probability, and calculating the current change inflection point; and in combination with a photon number extraction probability growth interval, constructing a refined pulse extraction detection efficiency reference ratio, screening high-density trigger data, and calculating a spatial deviation extreme value, so that the system bias compensation voltage is adjusted. According to the method, the breakdown breakover voltage point is positioned, so that measurement interference caused by basic background noise is avoided, the attenuation number is counted to establish a trigger probability sequence, a preset maximum likelihood estimation model is combined to extract a detection efficiency reference ratio, a channel deviation extreme value is calculated to directly correct parameter fluctuation, and array global dynamic balance is established. And the long-term stability of the whole detection working state is maintained.

The utility model relates to a smoke guiding device for smoke pipe welding. The device comprises a smoke guide cylinder, a fixing clamp, an air exhaust assembly and an iron wire, one end of the smoke guide cylinder is connected with a plugging nut through the fixing clamp, the plugging nut is fixed to the smoke leakage position of a smoke pipe through the iron wire, and the air exhaust assembly used for exhausting smoke is installed at the other end of the smoke guide cylinder through the fixing clamp. According to the scheme provided by the invention, when the leakage point of the smoke pipe is subjected to repair welding, the smoke can be drained, the smoke is prevented from influencing maintenance operators, and the health and safety of the maintenance operators are ensured.

The invention relates to the technical field of power equipment, and particularly discloses an electric drive system and a vehicle. The output end of the generator controller is electrically connected with the battery module; the generator is electrically connected with the input end of the generator controller, and the power output end of the generator is configured to be in transmission connection with a torsion damper on the engine; the input end of the motor controller is electrically connected with the battery module; the first motor is electrically connected with the output end of the motor controller, and the power output end of the first motor is configured to be in transmission connection with a left wheel; the second motor is electrically connected with the output end of the motor controller, and the power output end of the second motor is configured to be in transmission connection with a right wheel; the electric drive system has a power generation mode, a pure power mode, a range extending mode and an energy recovery mode. According to the electric drive system and the vehicle, the modes can be smoothly switched, and it is guaranteed that the working state of the generator is stable.