2385results about How to "Improve job stability" patented technology

The invention relates to the technical field of mechanical arm control, in particular to a mechanical arm and a control method thereof. The method comprises the following steps that real-time load information of all joints of the mechanical arm in the operation process is obtained, the acceleration and rotational inertia of the mechanical arm are monitored in real time, and real-time inertia force data are generated; the torque compensation amount needed by the mechanical arm is calculated according to the real-time inertia force data, and torque compensation control data are generated; performing dynamic analysis on the torque compensation control data, and performing real-time adjustment on the output torque of the servo motor based on the current load and inertia change condition to generate inertia compensation data; and the motion path and the motion speed of the mechanical arm are dynamically optimized according to the inertia compensation data, and path optimization data are obtained. Through real-time monitoring, dynamic adjustment and intelligent optimization, the operation precision, the movement efficiency, the stability and the self-adaptive capacity of the mechanical arm in the complex working environment are remarkably improved.

The invention discloses a safe airtight cold-resistant low-smoke flame-retardant control cable used in an explosion environment, and relates to the technical field of cables, a first hot melting pipe is filled with expanded graphite, the outer side of a wrapping tape is uniformly sleeved with protective iron rings at intervals, the outer sides of the protective iron rings are uniformly provided with fixing holes at intervals, and a communication port is formed between every two adjacent fixing holes; according to the invention, the heat insulation cotton, the compression-resistant rib, the protection iron ring, the arc-shaped elastic sheet, the arc-shaped frame and the elastic roll absorb and buffer external force, so that the compression resistance and impact resistance of the cable are enhanced; the aluminum hydroxide powder absorbs a large amount of heat and delays combustion, the expanded graphite in the first hot melting pipe is heated to expand, the expanded graphite is diffused to a gap between the shielding layer and the wrapping layer, flame is prevented from combusting to the interior of the cable, the working time is prolonged, and the economic loss is reduced.

The invention relates to the technical field of power cables, in particular to a bending-resistant medium-voltage power cable, which is characterized in that a plurality of cable cores are mounted in an outer sheath at equal angles in the circumferential direction, a plurality of supporting pads are uniformly mounted in the outer sheath at equal intervals, and a protective tube is mounted in the middle of the side end surface of each supporting pad; according to the invention, equal unloading of external bending stress and external impact pressure can be realized, and internal and external dual pressure relief can be realized, so that the stress borne by each part of the cable is more balanced, and the reliability of the cable is improved. The minimum bending radius of the cable can be dynamically regulated and controlled, comprehensive regulation and control of bending toughness and bending flexibility of the cable are achieved, the requirements of different use scenes are effectively considered, the application flexibility of the cable is improved, meanwhile, the effective utilization rate of load pressure in the cable can be improved, and the effective service life of the cable is prolonged.

The utility model provides a detergent putting device and clothes processing equipment. The detergent feeding device comprises a detergent supply assembly, a liquid outlet water path, a first water path and a second water path. The detergent supply assembly is provided with a first water outlet for discharging a detergent mixed solution; the first waterway is communicated with a water source, the first water outlet and the water inlet end of the liquid outlet waterway; the second waterway communicates with a water source and the water inlet end of the liquid outlet waterway; the first water outlet is higher than the water inlet end of the liquid outlet water path in the gravity direction, so that the detergent mixed solution in the first water path and the fluid in the second water path converge in the liquid outlet water path under the gravity effect, and the fluid in the first water path is the detergent mixed solution. According to the detergent putting device and the clothes treatment equipment, the detergent, especially the powdery detergent, is put into the clothes treatment cavity after being fully dissolved, the dissolution degree and the cleaning effect of the detergent are improved, and the user experience is improved.

The invention relates to the technical field of semiconductors, in particular to a photoelectric chip packaging structure which comprises a substrate, a signal transmission layer is arranged on the upper surface of the substrate, and a signal processing layer is arranged on the signal transmission layer; the signal transmission layer comprises a first electric chip which is provided with a first surface and a second surface, the first surface faces the substrate, and the second surface faces the signal processing layer; the signal processing layer comprises a signal conversion area and a data storage area; the signal conversion area is correspondingly provided with an optical chip, the optical chip comprises N * M photon calculation units, each photon calculation unit comprises an optical waveguide layer and a modulation layer located on the optical waveguide layer, and the modulation layer is a phase change material layer or comprises a phase change material layer; the data storage area is correspondingly provided with a second electric chip which is used for receiving and storing calculation data. The problems that an existing packaging structure is high in preparation difficulty, poor in heat dissipation performance and the like are solved.

The invention relates to a stepping motor control method and device based on load torque, which mainly performs closed-loop control on a stepping motor by collecting current and voltage signals so as to optimize the working efficiency of the motor. According to the method, firstly, a current signal is filtered and compared with a target reference value, a current deviation is calculated, and if the deviation exceeds a threshold value, a target PWM signal is generated to adjust the current until the deviation is reduced to be within a preset range. When the current meets the requirement, a voltage commutation point and a current zero point are determined based on the voltage signal, the current load state and torque value are calculated by combining the time interval between the voltage commutation point and the current zero point with preset no-load time and out-of-step time, and the working current is adjusted according to the information, so that the working efficiency of the stepping motor is optimized.

The invention provides a display device which comprises multiple rows of pixels and multiple stages of gate drive circuits, a first gate drive sub-circuit of the gate drive circuit comprises a first stage transmission circuit and a first output circuit, and the first output circuit comprises an eighteenth transistor, a twenty-first transistor, a twenty-second transistor and a fifth capacitor. One pole plate of the fifth capacitor is electrically connected with the first control node I, the other pole plate of the fifth capacitor is electrically connected with the first low-level signal input end or the second low-level signal input end, in the top view of the gate drive circuit, the first high-level signal line is located on the first side of the first low-level signal line, and the fifth capacitor is located on the second side of the first low-level signal line. According to the technical scheme, the coupling influence of the fifth capacitor on the potential of the signal transmitted by the high-level signal input end is avoided, so that the potential fluctuation of the first scanning signal is avoided, and the display abnormality phenomenon occurring at the boundary between different areas when the frequency division display function of the display device is started is improved.

The invention relates to the technical field of ecological management, in particular to a mine management soil remediation device which comprises an upper shell, a lower shell is fixedly mounted at the bottom of the upper shell, a water tank is fixedly mounted at the top of the upper shell, a separation mechanism is mounted in the upper shell, a smashing mechanism is mounted in the lower shell, and a soil remediation mechanism is mounted in the smashing mechanism. A spraying mechanism is installed between the lower shell and the water tank, an output mechanism is installed in the lower shell and located at the bottom of the smashing mechanism, and a driving mechanism is installed among the separating mechanism, the smashing mechanism and the spraying mechanism. The separating mechanism comprises a first separating roller, a second separating roller and a first bevel gear. According to the mine soil remediation device, stones in mine soil are effectively separated and crushed, the function of agent spraying is combined, the mine soil remediation efficiency and quality are improved, the equipment maintenance cost is reduced, and effective remediation of the mine soil and improvement of the ecological environment are achieved.

The invention relates to the technical field of soil sampling equipment, and particularly discloses an automatic whole-section sampling device for saline alkali soil detection, the automatic whole-section sampling device comprises a mounting rack, the inner side surface of the mounting rack is fixedly connected with stabilizer bars, and the stabilizer bars are symmetrically and fixedly connected to the two sides of the mounting rack. The whole-section sampling of soil can be automatically completed by starting the motor, the use convenience is greatly improved, the arranged preparation ring not only can protect the tool bit and prevent the tool bit from being damaged due to collision, but also can provide time for the collection of the sampling plate, and the sampling efficiency is improved. When the motor rotates reversely, the sampling plate spirally moves upwards in the reverse direction, and expands outwards in the upward moving process, so that the soil is released, that is, the soil is released after the device is reset, the operation convenience is further improved, and the working efficiency is improved. The protection effect on the sampled soil is also greatly improved, and the soil is prevented from scattering.

The utility model provides a self-positioning and antifouling flat gate valve which comprises a valve body, a valve cavity and a medium channel communicated with the valve cavity are arranged in the valve body. A left valve seat and a right valve seat are arranged at the intersection of the medium channel and the valve cavity, a gate plate is connected between the left valve seat and the right valve seat, the gate plate is matched with the left valve seat and the right valve seat in a sealing mode, and the gate plate is driven by a valve rod to move up and down. A spring hole is formed in the position, in axial contact with the valve body, of the valve seat, and a spring is installed in the spring hole. A positioning block is arranged in the valve body and is coaxial with the gate plate in the longitudinal direction, and a positioning groove matched with the positioning block is formed in the bottom of the gate plate. And the scraping plate is installed in the valve body and arranged at the upper end of the valve seat, and the valve rod is arranged on the scraping plate in a penetrating mode. The spring is arranged at the axial contact position of the valve seat and the valve body, sealing of the valve seat and the gate plate is kept, abrasion to the sealing face of the valve seat is reduced, and the service life of the gate valve is prolonged. And the scraping plate removes dirt on the surface of the gate plate, and the sealing performance of the gate valve is improved.

The invention discloses an electric reactor with internal coil stabilization and auxiliary heat dissipation, and relates to the technical field of coil stabilization, the electric reactor comprises a base, the top surface of the base is fixedly connected with an air-core electric reactor body, the outer surface of the air-core electric reactor body is provided with a coil body, and the top surface of the base is provided with a coil stabilization mechanism for preventing the coil from loosening. An auxiliary heat dissipation mechanism used for assisting heat dissipation of the reactor is arranged on the top face of the base, the coil stabilizing mechanism can clamp a loose coil, pressure can be applied more evenly through clamping and fixing, the coil is more stably fixed, the consistency of the shape and performance of the coil can be kept, and the service life of the reactor is prolonged. The clamping device can avoid direct compression and damage to an insulating layer of the coil, the insulating performance of the coil can be protected, the auxiliary heat dissipation mechanism can scrub the interior of the electric reactor, remove dust and sundries in the electric reactor, reduce heat resistance, improve heat dissipation efficiency and keep the electric reactor to operate within the normal working temperature range.

The invention discloses a touch-type interactive all-in-one machine, and belongs to the field of interactive all-in-one machines, the touch-type interactive all-in-one machine comprises a machine body, a touch screen is fixedly connected to the outer surface of the upper end of the machine body in an embedded manner, a fixing frame is fixedly connected to the outer surface of the lower end of the machine body, a moisture-proof assembly is arranged on the inner side of the fixing frame, and the moisture-proof assembly comprises a movable part and a sealing part; the movable part comprises an air inlet groove formed in the outer surface of the fixing frame, and a first cavity is formed in the inner side of the fixing frame in an embedded mode. The moisture-proof assembly is arranged, and the air inlet groove is blocked and sealed through the movable plate, so that dust and moisture entering the cavity I can be reduced to a certain extent, and the probability of generating condensation in the cavity I can be reduced; and meanwhile, the probability that metal elements in the interaction all-in-one machine are corroded by moisture can be effectively reduced, so that the service life of the interaction all-in-one machine can be remarkably prolonged, and the adaptability and the working stability of the interaction all-in-one machine are improved.

The invention discloses an underwater robot self-adaptive control system and method based on data analysis, and relates to the technical field of automatic control. Environment data and underwater robot data in the operation process of an underwater robot are collected, an operation data set S is constructed, feature extraction is performed, and the operation data set S is obtained; the method comprises the following steps: acquiring an acceleration fluctuation coefficient # imgabs0 # and an attitude angular rate fluctuation coefficient # imgabs1 #, summarizing and calculating to obtain a stability score WD, evaluating the operation state of the underwater robot, predicting water flow data at a future time point t + k when the operation state of the underwater robot is abnormal, acquiring an underwater robot adjustment thrust # imgabs2 # in combination with a robot dynamic model, and using a genetic algorithm to calculate the operation state of the underwater robot. According to the method, the optimal thrust distribution scheme of the underwater robot is obtained, the underwater robot is controlled to execute the operation task, strong turbulence and water flow reversing can be effectively handled, the operation failure and damage risk of the underwater robot are reduced, and the operation stability and safety of the underwater robot are improved.

The embodiment of the invention provides a chip heat dissipation assembly and a vehicle, relates to the technical field of heat dissipation, and is used for reducing the stress borne by a chip while improving the heat dissipation capability of the chip heat dissipation assembly. The chip heat dissipation assembly comprises a circuit board, a chip, a heat dissipation structure and a heat-conducting medium. The chip is located on the circuit board. The heat dissipation structure covers the side, away from the circuit board, of the chip and is connected with the circuit board. The heat dissipation structure comprises a heat dissipation plate, a surrounding part and a boss part. The surrounding part and the boss part are located on the side, close to the chip, of the heat dissipation plate. The enclosure part and the boss part are both connected with the heat dissipation plate, and the enclosure part is arranged around the boss part; a closed space is defined by the heat dissipation plate, the enclosure part, the boss part and the chip, and a gap is formed between the boss part and the chip. The closed space is filled with the heat-conducting medium, the heat-conducting medium is in a solid state at a first temperature and is in a liquid state at a second temperature, and the second temperature is higher than the first temperature. The chip heat dissipation assembly is applied to a vehicle so as to improve the heat dissipation capacity of a chip in the vehicle.

The invention relates to the technical field of cable manufacturing, and particularly discloses an aerial insulated cable and a production process thereof, the aerial insulated cable comprises a conductor, the outer surface of the conductor is fixedly coated with a shielding layer, the outer side of the shielding layer is fixedly coated with an insulating tube, and the outer side of the insulating tube is provided with an outer sheath. The outer surface of the insulating tube is wrapped and supported through the arc-shaped inner surfaces of the limiting tubes and the reinforcing strips, so that the insulating tube is fixed in the outer sheath, the situation that the overall structural stability of the cable is affected due to displacement of the insulating tube in the outer sheath is avoided, the inner surface of the outer sheath is supported through the supporting strips and the reinforcing strips, and the service life of the cable is prolonged. The overall structural strength of the outer sheath can be enhanced, the situation that the normal work of the cable is affected by permanent deformation of the outer sheath is avoided, meanwhile, gaps are formed among the limiting pipes, the supporting strips and the reinforcing strips, heat generated when the cable works can be dissipated, and the phenomenon that the outer sheath swells when the cable works normally is avoided.

The invention is suitable for the technical field of transplanting machinery, and provides a soil scraping device of a transplanter planter, the soil scraping device comprises a planter, a driving mechanism and a mud scraping mechanism, the driving mechanism is installed on an engine, the driving mechanism is used for enabling the planter to perform circular-arc circulating reciprocating motion, the planter in the moving process penetrates through the mud scraping mechanism, and the mud scraping mechanism is installed on the planter. Mud attached to the surface of the planting device is removed through the mud scraping mechanism; wherein the bottoms of the front end and the rear end of the engine are fixedly provided with a first fixing rod and a second fixing rod respectively, the lower end of the second fixing rod is connected with a movable rod through a buffer assembly, and the bottom end of the movable rod is connected with the mud scraping mechanism; the mud scraping mechanism is further connected with the bottom end of the first fixing rod through a second reset spring. The driving mechanism is used for pushing the duckbilled device of the planting device to do circular-arc circulating reciprocating motion, the duckbilled device in the moving process penetrates through the mud scraping mechanism, and mud attached to the surface of the duckbilled device is removed through the mud scraping mechanism.

The high-voltage power distribution facility detection robot comprises a mobile platform, an inspection platform and an inspection mechanism, the inspection platform is arranged on one side of the mobile platform in the thickness direction, a bearing table is arranged on one side, away from the mobile platform, of the inspection platform, and the inspection mechanism is arranged on the bearing table. Wherein the inspection mechanism comprises an image acquisition part, an operation interaction part and a grounding switch execution part, the image acquisition part is used for acquiring image information, the operation interaction part is used for interactively operating a to-be-detected power distribution cabinet, the grounding switch execution part is used for controlling opening and closing of a grounding switch on the to-be-detected power distribution cabinet, the bearing table comprises a main table body and a lifting table, and the lifting table and the main table body are separately arranged; the operation interaction part is arranged on the main platform body, the image acquisition part is arranged on the lifting platform, a sub platform body is further arranged on the side, close to the movable platform, of the lifting platform, and the sub platform body can move relative to the lifting platform in the second direction.

The utility model provides a self-unloading generator set, and belongs to the technical field of generator sets. The self-unloading generator set comprises a generator set body and a loading and unloading moving mechanism, a controller is installed on the left side of the front side of the generator set body, a chassis is installed at the bottom of the generator set body, moving cavities are formed in the four corners of the bottom of the chassis, moving columns are movably connected into the moving cavities, and moving wheels are fixedly connected to the bottoms of the moving columns. Through the arrangement of the loading and unloading moving mechanism, when the chassis is matched with the generator set body for use, a user can conveniently load, unload and move the position of the generator set body through the chassis according to the actual situation, the generator set body can be better loaded and unloaded, and the practicability of the generator set body is improved. And the situation that the generator set body is difficult to move and assemble in the assembling and disassembling process is avoided, so that the assembling and disassembling convenience and flexibility of the generator set body are improved.

The embodiment of the invention discloses a sleep monitoring method and device, a storage medium and electronic equipment, and relates to the technical field of computers. The method comprises the steps of determining whether a facial expression of a target user in a sleep area meets a preset condition or not; when it is determined that the facial expression meets the preset condition, detecting whether the duration of the target user in a static state reaches a preset duration; when it is determined that the facial expression meets the preset condition and the duration of the target user in the static state reaches the preset duration, it is determined that the target user enters a sleep state, and recording and continuous monitoring of the sleep condition of the target user are started; and generating a sleep report according to the sleep condition of the target user. According to the embodiment of the invention, a monitor can know the sleep cycle, deep sleep time and other information of the target user as the monitored person, understand the natural sleep law of the monitored person, and improve the sleep quality of the monitored person.

The invention relates to the technical field of cables, in particular to an airtight cold-resistant low-smoke flame-retardant instrument cable used in an explosive environment, which comprises a protective sleeve, a cable body mechanism is arranged in the protective sleeve, the cable body mechanism comprises inner sheaths, and a plurality of inner sheaths are uniformly mounted in the protective sleeve at equal intervals. According to the invention, heat dissipated in the use process of the cable can be utilized to preheat the main body structure of the cable, so that the cold resistance of the cable is improved while internal heat dissipation is promoted; according to the invention, the structure of the cable is improved, the connection stability among the structures of the cable can be improved, the air tightness of the cable is effectively improved, the throttling effect of the heat insulation shell and the guide ring can be fully utilized, the flame retardance of the cable is improved, the cable can be better matched with the external environment, and the application range of the cable can be effectively expanded while the working stability of the cable is improved.

The invention provides an electric energy meter operation control method and system, and relates to the technical field of intelligent power grids, and the method comprises the steps: receiving a monitoring instruction, the monitoring instruction comprises monitoring various working physical data of an electric energy meter, and the working physical data comprises voltage, current, a power factor, active power and reactive power; generating a corresponding data acquisition plan according to the monitoring instruction; distributing the data acquisition plans to corresponding operators and operation terminals; the working physical data, including voltage fluctuation, current change and power factor stability, of the electric energy meter monitored by the monitoring terminal is obtained in real time, and the monitoring terminal automatically calculates the change gradient of the working physical data every time a monitoring period is completed. Through real-time monitoring and analysis of working physical data of the electric energy meter and feedback control, intelligent management of the electric energy meter is realized, and stability and efficiency of a power system are improved.

The utility model provides a vehicle battery pack cooling system and a vehicle. The vehicle battery pack cooling system comprises a compressor, a refrigerant cooling device, an intermediate heat exchanger, a refrigerant expansion device, a gas-liquid separation device and a cooling plate, the middle heat exchanger is internally provided with a high-temperature runner and a low-temperature runner which are used for circulating refrigerants, the refrigerants in the high-temperature runner and the low-temperature runner can exchange heat, the cooling plate is internally provided with a cooling runner which is used for circulating the refrigerants, and the refrigerants in the cooling runner can directly exchange heat with the battery pack; the compressor, the refrigerant cooling device, the high-temperature flow channel, the refrigerant expansion device, the gas-liquid separation device and the cooling plate are sequentially communicated to form a refrigerant liquid inlet loop, and the cooling plate, the low-temperature flow channel and the compressor are sequentially communicated to form a refrigerant liquid return loop. According to the vehicle battery pack cooling system, the cooling efficiency of the battery pack can be improved, and the working stability of the battery pack can be improved.

The invention relates to a manganese zinc ferrite material and a preparation method thereof, the manganese zinc ferrite material comprises main components and auxiliary components, the main components comprise Fe2O3, ZnO and MnO, and the auxiliary components comprise CoO, CaO, Bi2O3 and MoO; and in the main components, the content of Fe2O3 is 52.0 to 53.0 mol percent, the content of ZnO is 18.0 to 19.0 mol percent, and the content of MnO is 28.0 to 30.5 mol percent in terms of mole percent. According to the manganese-zinc ferrite material, the initial permeability mu i is greater than or equal to 12000 in a wide temperature range of 0-145 DEG C, and the manganese-zinc ferrite material has a relatively low temperature coefficient in the temperature range; the magnetic conductivity does not drop under the high frequency of 300kHz, and mu i is greater than or equal to 9000; the Curie temperature Tc is greater than 145 DEG C, so that the stability of the manganese-zinc ferrite material applied to the field of automotive electronics or a conventional anti-EMI common-mode filter is greatly improved.

The invention relates to the technical field of lightning arrester state monitoring, in particular to a lightning arrester operation state remote online monitoring system which comprises a remote monitoring platform, an information acquisition unit, a resistive analysis unit, a resistive interference unit, a state division unit, a management demand unit and a management response unit. According to the method, the health condition of zinc oxide in the lightning arrester is analyzed from the perspective of resistive current, analysis is carried out from the perspective of the environment to know the operation interference level condition of the environment on the lightning arrester, analysis is carried out in an information feedback and information fusion mode, so that the state influence of the lightning arrester is graded, and the operation interference level condition of the lightning arrester is obtained. According to the method, the state influence grade condition of the lightning arrester is known, meanwhile, analysis is carried out by combining the state performance condition of the lightning arrester, so that the state risk of the lightning arrester is comprehensively quantified, and reasonable and targeted management is carried out according to the dynamic trend condition of the state risk, so that the state stability and reliability of the lightning arrester are improved.

The utility model relates to the field of circuit manufacturing, in particular to a new energy vehicle battery detection circuit with a multi-bend wire, which comprises a temperature sensor and the multi-bend wire. The temperature sensor is arranged on a monitored battery and is electrically connected with the signal transmission bus through the multi-bend folding wire; the multi-bend folding wire comprises a plurality of bent circuitous sections and linear sections; the bent circuitous sections and the linear sections are alternately arranged on the multi-bend folding lead; the plurality of straight line segments are parallel to each other, and the insulating outer cladding layers of the adjacent straight line segments are bonded with each other; the bonding force between the adjacent straight line segments is in direct proportion to the distance between the corresponding bonding position and the temperature sensor, and the bonding force is smaller than a preset structural force bearing threshold value; and the plurality of bent circuitous sections are not overlapped in the arrangement direction of the plurality of straight line sections. According to the utility model, the working stability of the circuit is improved, the safety of a signal transmission bus is guaranteed, and the maintenance cost is reduced.

The invention relates to the technical field of speed reduction transmission devices, and discloses a transmission mechanism for an aircraft intake valve assembly. Comprising a shell, one side in the shell is rotationally connected with a worm, the other side in the shell is rotationally connected with a worm gear meshed with the worm, the shell penetrates through and is rotationally connected with an output shaft, one end of the worm is fixedly connected with a first gear, and the shell is rotationally connected with a second gear. A second cover plate is fixedly connected to the side, close to the worm gear, of the shell, the output shaft penetrates through the second cover plate, a first friction disc is fixedly connected to the side, away from the worm gear, of the second cover plate, the output shaft is fixedly connected with a spline rod, the spline rod is in spline connection with a sliding disc, and the sliding disc is in extrusion fit with the first friction disc. By means of friction force between the sliding disc and the first friction disc, part of resistance is provided for the output shaft, and then vibration force borne by the output shaft is prevented from completely acting between the worm and the worm wheel.

The invention provides a contact lens continuous online production method and a production system thereof, and belongs to the technical field of contact lens preparation. The problem of poor stability in the prior art is solved. The continuous online production method of the contact lenses comprises the following steps: A, adaptation preparation; b, module connection; and C, detecting and caching. The continuous online contact lens production system comprises a dry lens operation module, a wet lens operation module, a sterilization operation module and an outer packaging operation module, the output ends of the dry lens operation module, the wet lens operation module and the sterilization operation module are each provided with a transfer cache mechanism, and a material frame mechanism is arranged between every two adjacent modules. The transferring and caching mechanism can convey the semi-finished products from the previous module to the next adjacent module through the material frame mechanism according to the set conveying speed and conveying capacity. The production method is high in efficiency, and the system is compact in structure.

The utility model provides a self-powered mobile drainage system which can be moved to a dangerous area, drives a submersible pump to work through self power, does not need to be connected with a mains supply, and realizes quick, efficient and flexible emergency drainage and water supply. The utility model discloses a crawler-type submersible pump vehicle which comprises a vehicle body, a crawler-type walking device and a submersible pump. The crawler-type walking device comprises a driving chain wheel arranged at the bottom of the vehicle body, a driven chain wheel, a crawler chain surrounding the driving chain wheel and the driven chain wheel, and a chain wheel hydraulic motor driving the driving chain wheel to rotate. The submersible pump is a hydraulically-driven hydraulic submersible diagonal flow pump with a water pump hydraulic motor; the engine drives an oil pump in the hydraulic system, and the oil pump provides hydraulic oil for a chain wheel hydraulic motor and a water pump hydraulic motor to drive the chain wheel hydraulic motor and the water pump hydraulic motor.

The invention discloses an opening and closing control method and system based on a circuit breaker, relates to the technical field of circuit breakers, and adopts a Python technology to construct a quadratic polynomial function so as to accurately analyze the relationship between an expansion coefficient and temperature, and the process enables the deformation influence of temperature change on a bimetallic strip in the circuit breaker to be comprehensively grasped. The bending deformation of the bimetallic strip at different temperatures can be evaluated in real time based on the electric power data set and the temperature and deformation relation obtained through analysis. By setting a bending deformation threshold and comparing the bending deformation with the threshold, whether an opening mechanism is triggered or not can be judged, after the opening mechanism is triggered, the deformation process of the bimetallic strip is traced back, the upper limit temperature of the bimetallic strip is analyzed and determined, and the thermal response duration is calculated in combination with related material characteristic change data. The step can help to judge whether the thermal response of the bimetallic strip in the circuit breaker is stable or not, and a temperature compensation mechanism is started under the condition that the temperature is unstable, so that the thermal response process is optimized.

The utility model provides a visual float. The visual float comprises a shell, a magnetic floating block, a control module, a battery, a camera, an acceleration sensor and a Hall sensor, wherein the battery, the camera, the acceleration sensor and the Hall sensor are electrically connected with the control module. A closed inner cavity is formed in the shell, an open cavity is formed in the middle of the shell, the camera is arranged at one end of the shell, the control module, the battery and the acceleration sensor are all arranged in the closed inner cavity, the magnetic floating block is arranged in the open cavity, and the Hall sensor is arranged at the position, close to the open cavity, in the closed inner cavity. According to the visual fishing float, the magnetic floating block is arranged in the open cavity, so that the magnetic floating block and the shell can shake up and down when heavy storm waves exist, and the relative position relation of the magnetic floating block and the Hall sensor does not change greatly; therefore, whether the fish bites the hook or the float moves due to stormy waves can be distinguished through the magnetic field signals of the Hall sensor, the working stability is high, and wrong rod lifting signals are not prone to being generated.