85results about How to "Avoid excessive wear and tear" patented technology

The invention relates to a kitchen waste treating device. The kitchen waste treating device comprises a conveying device, a crushing chamber, a grinding chamber, a compression separator, an oil-water separating device and a water treatment device. A kitchen waste main body is food residue which is divided into a liquid state and a solid state. By conveying for primary breaking, crushing and grinding, solid matters are granular; solid is separated from liquid by extrusion; solid particles are sufficiently dewatered and dried to serve as a fertilizer raw material; upper-layer oil is removed and collected according to the densities of oil and water, and water is filtered, foamed and sterilized to obtain treated water, and thereby the kitchen wastes are centrally and efficiently treated at waste producing places in a concentrated area of restaurants.

The invention discloses a routing control method based on big-scale WSN (wireless sensor network) emergency monitoring, which comprises four steps of building a network model, initializing a network, electing a cluster and transmitting data, wherein in the data transmission process, a cluster node selects a trunking mode of one hop or multiple hops to send effective monitoring data back to a gateway node according to the fact whether the gateway node is in a self 'neighbor node log sheet'; and in the trunking mode of multiple hops, the current node selects different algorithms to find a next-hop route node according to the self residual energy situation. The routing control method has the outstanding effects that the cluster node and the gateway node are communicated in the trunking mode of one hop or multiple hops to avoid excessive energy loss caused by long-distance transmission. According to the mechanisms of a cluster node and relay node election method, self-adaption power regulation, message delay forwarding control and the like, network energy consumption is saved and balanced so as to delay the time of the first dead node and improve the network performance.

The invention discloses a portable vehicle metal plate dent repair device. The device comprises an exhaust pipe; a bracket is welded on the outer surface of the exhaust pipe; an auxiliary sucker is arranged at the bottom of the bracket; a traction sucker is arranged at the top of the exhaust pipe; a hollow layer is arranged on the upper surface of the traction sucker; a heat guide pipe is arranged on the outer surface of the traction sucker; a soft glue layer is arranged in the exhaust pipe; a fixed handle is arranged at the bottom of the exhaust pipe; a pressing handle is arranged in the exhaust pipe, and is rotationally connected with a transmission rod in the exhaust pipe through a rotating shaft; a pressure bearing plate is arranged on the inner side of the transmission rod; a ventilation hole is formed in the inner surface wall of the exhaust pipe; a ventilation plate is arranged on the inner side of the ventilation hole; and the ventilation plate is connected with a sealing block in the ventilation hole through a spring pipe. The repair tool is simple and reasonable in overall structural design, safe and flexible in operation process, higher in sink mark repair capacity and higher in practicability.

The invention discloses a device for measuring the width of a single picosecond laser pulse. The device consists of a beam splitter, a delay adjustor, a first reflector, a second reflector, a reflection grating, a KDP frequency doubling crystal, a filter, a CCD array and an oscilloscope, which have the following position relationships that: the beam splitter is arranged in the input direction of the laser pulse to be measured; the laser pulse beam to be measured is split into a transmission beam and a reflection beam through the beam splitter; the transmission beam enters the KDP frequency doubling crystal through the delay adjustor and the first reflector; the reflection beam also enters the KDP frequency doubling crystal after passing through the second reflector and the reflection grating; and the two beams generate non-collinear related signals in the KDP frequency doubling crystal, and the related signals enter the CCD array through the filter and are finally displayed on the oscilloscope. The width of the measured pulse can be acquired through calculation. The device for measuring the width of the single picosecond laser pulse not only effectively improves the sensitivity of the measurement, but also enlarges the wavelength range of the measurable pulse.

The technical scheme of the invention provides an energy conversion device and a vehicle. The energy conversion device comprises a first motor electric control circuit, a second motor electric controlcircuit and a controller. When the controller is configured to operate in a first control mode, the controller controls a first motor inverter in the first motor electric control circuit, so that a battery pack, a first motor inverter and a first motor winding form a first battery pack heating circuit; an internal resistor of the battery pack is heated through the first battery pack heating circuit; meanwhile, a second motor inverter in the second motor electric control circuit is controlled to output power; heating and driving of the energy conversion device are carried out at the same time,due to the fact that the first motor electric control circuit is adopted for heating and the second motor electric control circuit is adopted for driving, excessive loss of the motor winding and themotor inverter in the motor driving circuit is avoided, and the service life of devices in the circuit is prolonged.

The invention relates to a compound power system easy to replace and a control method. The system comprises an internal energy storage power supply module connected with a motor in an automobile, an extensible energy storage power supply module connected with the motor in the automobile, and a power conversion module connected with the motor, the internal energy storage power supply module, the extensible energy storage power supply module and a controller in the automobile and used for controlling the power supply states of the internal energy storage power supply module and the extensible energy storage power supply module under the control of the controller. The method includes the steps that when the automobile is in a drive state, the motor power supply modes of the extensible energystorage power supply module and the internal energy storage power supply module are adaptively adjusted according to the internal electric quantities of the extensible energy storage power supply module and the internal energy storage power supply module; and if the automobile is in a braking or charging state, components are sequentially charged according to the sequence of the internal energy storage power supply module and energy storage elements short in energy. Compared with the prior art, the system has the beneficial effects of being convenient to replace, capable of saving cost, high in energy use rate and the like.

The invention provides a sand filter tank structure for a non-ferrous metal mine acid wastewater treatment system. The sand filter tank structure comprises a cleaning water inlet pipe, a water separating cone, a bracket and a bracket positioning shaft, wherein a semi-spherical settlement water cover is arranged at the bottom of the tank body in a welding manner; a circular-table shaped top cover is locked and supported at the top end of the tank body by screws; a round cover plate is locked on and covers an opening formed in the top end of the top cover by screws; a sewage discharging pipe issuspended at the bottommost part of the settlement water cover in a communicating manner; a sewage discharging valve is fixed to the sewage discharging pipe by the screws; and a water inlet pipe is supported on the circumferential arc outer wall of the settlement water cover in a penetrating and communicating manner. According to the sand filter tank structure disclosed by the invention, through arrangement of six gas spraying pipes, when back-flushing cleaning is carried out, high-pressure airflow which is sprayed out of the six gas spraying pipes at high speed can form maser water flow to enable quartz sand to be dispersed and turned, and impurity sludge adhered and adsorbed on the surface is rubbed and stripped off, so that the back-flushing cleaning effect of a quartz sand filter material is effectively improved.

A method of controlling an electric power assisted steering (EPS) apparatus comprises a plurality of inverter bridges each connected to a multi-phase motor configured to provide power assist to steering of a vehicle. After detection of a failure within one of said inverter bridges, the current flow within the faulty inverter bridge is controlled, and one or more of the other inverter bridges is used to provide power assistance. A control system for an electric power assisted steering (EPS) apparatus comprises a plurality of inverter bridges (14, 14') each connected to a multi-phase motor (12,12') configured to provide power assist to steering of a vehicle, selection means for selectively operating switches (16, 18, 20, 22, 24, 26) in an inverter bridge in which a failure has been detectedto control the current flow within the faulty inverter bridge, and control means for controlling one or more of the other inverter bridges to provide power assistance in accordance with the method.

The invention discloses chemical barrel cleaning equipment. The chemical barrel cleaning equipment comprises a chemical barrel conveying mechanism, a chemical barrel, a power rotation mechanism, an outer wall cleaning mechanism, a cleaning mechanism and a machine frame; the power rotation mechanism, the outer wall cleaning mechanism and the cleaning mechanism are all arranged a the machine frame;the chemical barrel is conveyed to the position between the power rotation mechanism and the cleaning mechanism through the chemical barrel conveying mechanism, the power rotation mechanism is locatedabove the chemical barrel, and the cleaning mechanism is located below the chemical barrel; the outer wall cleaning mechanism is arranged on one side of the chemical barrel; and an opening of the chemical barrel is matched with the cleaning end of the cleaning mechanism. According to the chemical barrel cleaning equipment, the chemical barrel is driven to rotate through the power rotation mechanism, chemical matter in the chemical barrel is completely removed through the cleaning mechanism, meanwhile, the outer wall of the chemical barrel is cleaned through the outer wall cleaning mechanism,and the labor intensity of workers is relieved while the cleaning speed is increased.

The invention relates to a thallium ingot ejecting system and two thallium ingot ejecting methods. The thallium ingot ejecting system comprises a travelling crane, a tank body and a hydraulic mechanism. The travelling crane is arranged above the tank body and connected with the tank body through steel cables; the hydraulic mechanism is arranged under the tank body and provided with an upwards-protruded ejecting column, and the axial direction of the ejecting column is vertically disposed; the bottom of the tank body is provided with a movable bottom plate, and the bottom of the tank body under the movable bottom plate is provided with a bottom hole, and the ejecting column is arranged inside the bottom hole. The thallium ingot ejecting methods comprise the steps of hoisting the tank body containing a thallium ingot above the ejecting column, slowly putting down the tank body and driving the ejecting column to eject the thallium ingot through the gravity of the tank body, or clamping the tank body through a clamping mechanism and driving the ejecting column to eject the thallium ingot through the hydraulic mechanism. According to the thallium ingot ejecting system and the two thallium ingot ejecting methods, the opening of the tank body can maintain upward, and the thallium ingot can be ejected upwards, so that the problem of too much wearing of the tank body during traditional horizontal thallium ejection can be avoided.

The invention discloses a keyboard device shining with regional separation of a hand-held device, which enables the backlight of the keyboard to form that one part of a region shines and the other part is closed according to requirements, which enables the use of the keyboard to be more convenient and humanized, and simultaneously reduces the depletion of battery energy as much as possible. The technical proposal of the invention is that the keyboard device comprises keyboard components, which orderly and from top to down comprises that a plurality of key-presses which are arranged in different regions, key-press bracing frames which support the key-presses and simultaneously strengthen the integral strength of the key-presses, a buffer layer which increases the elasticity of the key-presses, a light conducting layer which is composed of a light conducting part and a non-light conducting part, wherein multiple groups of light-emitting components are arranged on the light conducting layer, each group of the light-emitting components is respectively corresponding to the key-press in each of different regions, thin-film switches which control the opening and the closing of switches to control the light-emitting components according to whether the key-presses are pressed down, and a circuit board, and the thin-film switches and the light-emitting components are all connected on the circuit board. The keyboard device is suitable for the field of manufacturing the keyboard of the hand-held device.

The invention discloses an automobile data collection box point-ignition-preventing reset circuit. The automobile data collection box point-ignition-preventing reset circuit comprises a power supply conversion module, an enabling end power supply circuit, a power supply conversion enabling end locking circuit and a single chip microcomputer; the power supply conversion module performs voltage conversion on an automobile storage battery power supply for supplying a power supply for the automobile data collection box; in automobile ignition, the power supply conversion enabling end locking circuit performs locking on the electric level voltage of the enabling end of the power supply conversion module to prevent reset and restart of the power supply conversion module caused by a condition that the automobile storage battery power supply outputs a low voltage; and the single chip microcomputer performs locking control on the power supply conversion enabling end locking circuit. By virtue of the automobile data collection box point-ignition-preventing reset circuit provided by the embodiment, the enabling end of the power supply conversion module is locked, so that power supply reset inautomobile ignition is prevented, and excessive loss of the automobile storage battery can be avoided through the enabling end power supply circuit.

The invention relates to a tooth aid, and relates to the field of daily life utensils. The problems of single function and low intellectualized degree of an existing intelligent toothbrush are solved. The tooth aid comprises a long strip shell, wherein a camera is arranged on the side wall of one end of the long strip shell, while a photographing key and a video recording key are arranged on the side wall of the other end of the long strip shell; a control module and a wireless transmission module are arranged inside the long strip shell; the wireless transmission module is connected with the control module, and is used for realizing wireless transmission of remote data together with external intelligent equipment; all of the camera, the photographing key and the video recording key are connected with the control module; the photographing key is used for controlling the photographing of the camera by the control module; the video recording key is used for controlling a video recording function switch of the camera by the control module. The tooth aid disclosed by the invention is applied to cleaning and care of oral cavity teeth, dental appointments, remote treatment and the like.

The embodiment of the invention discloses an automobile safety warning method and device. The method comprises the steps that a to-be-detected image and a to-be-detected sound are obtained; and if the to-be-detected image is matched with a preset automobile interior image and the to-be-detected sound is matched with an automobile ignition sound, a user is warned to inspect automobile safety matters. According to the automobile safety warning method and device, the user is warned to inspect the automobile safety matters by matching the to-be-detected image with the automobile interior image and matching the to-be-detected sound with the automobile ignition sound, automobile excessive loss caused by poor automobile safety awareness of the automobile owner can be effectively avoided, and life safety of the automobile owner is improved.

The invention relates to a mud scraping device, and comprises a driving device, the driving device is provided with a driving motor, a driving chain, a support column, a principal axis and a drive sprocket wheel, the driving chain is connected with the motor, the support column is arranged at the bottom of a water tank relative to the location of the driving chain, the principal axis is arranged on the support column, the driving chain is arranged on the principal axis and connected with the driving chain; a slave device combined with the driving device is provided with two slave sprocket wheels, a slave chain and a slave axis, wherein, the slave sprocket wheel is arranged on the principal axis and combined with the slave chain, the slave chain is penetrated on the support column, the other slave chain is arranged on the slave axis; and a plurality of slave chains combined with the slave chain, and thereby, the invention provides a mud scraping device with high-efficient mud clearing effect.

The present inveniton relates to a floating damping electrical cabinet which comprises a cabinet body, a humidity detection unit, a base and a buffer pad, a groove is formed in the base, an air storage chamber is embedded in the side wall of the base, a moving block and a damping plate are arranged in the groove, a guide part is arranged between the moving block and the groove, and a damping unit is arranged between the moving block and the damping plate. The damping unit comprises an annular magnet, a winding coil and a conical spring, a heat conduction element is arranged in the air storage chamber, an upper connecting pipe and a lower connecting pipe are arranged on the air storage chamber, a buffer assembly is arranged between the damping plate and the groove, the buffer assembly comprises a damping column, a box body and a corrugated pipe, a damping spring is arranged in the corrugated pipe, an air inlet pipe and an exhaust pipe are arranged on the two sides of the damping spring respectively, and the humidity detection unit is connected with the heat conduction element through a wire. The floating damping electrical cabinet effectively solves the problems of poor stability and safety of the cabinet body and the like due to the fact that electronic components in the cabinet body are affected by impact vibration of sea waves in an existing marine electrical cabinet and the service life of the cabinet body is shortened.

The invention relates to a barrelled water support. The barrelled water support comprises foot plates, a supporting frame hinged between the foot plates, a locating part and a movable carrying base; the supporting frame can rotate around a hinge shaft of the foot plates in the vertical space, the movable carrying base is arranged at one end of the supporting frame and assembled on longitudinal frame rods through sliding rail structures, a structure for embedding a barrel a lantern ring matched with the neck of the barrel are arranged on the movable carrying base, and the locating part can fix the position of the supporting frame when the end, provided with the movable carrying base, of the supporting frame rotates to the upper portion. By means of the barrelled water support, the barrel does not need to be lifted to a high place and can be smoothly moved to the height suitable for use and inverted; the barrelled water support has the advantages of being convenient to use with less effort, environmentally friendly and suitable for outdoor location, dispensing with externally arranged driving part and saving energy.

The invention discloses a pipeline power generating station. The pipeline power generating station comprises a main pipeline and an auxiliary pipeline which are connected into a fluid-conveying pipeline in parallel, the two ends of the main pipeline are each provided with a water valve I, and the auxiliary pipeline is provided with a normally-closed water valve II; the main pipeline is provided with a unit pipeline connected into the portion between the two water valves I, the unit pipeline is provided with one or more sets of hydroelectric generating units, and each hydroelectric generating unit comprises a hydroturbine and an electric generator; fixing assemblies are arranged at the two sides of the unit pipeline to enable the two ends of a rotating shaft of each hydroturbine to be installed in the unit pipeline in a sealed mode, and each hydroturbine rotates to drive the corresponding electric generator arranged outside the unit pipeline to work. According to the pipeline power generating station, the unit pipeline provided with the hydroelectric generating units is arranged on the fluid-conveying pipeline in a connected mode, kinetic energy generated due to flowing of a fluid is converted into mechanical energy and finally converted into electric energy through the electric generators, part of the energy is recycled, and the excessive loss is avoided; by means of the parallel connection mode of the main pipeline and the auxiliary pipeline, maintenance and repair of the hydroelectric generating units are convenient, and meanwhile normal conveying of the pipelines is guaranteed.

The invention discloses a movable planting box for garden engineering, comprising a planting box body for planting plants, wherein the bottom of the planting box body is provided with a plurality of universal wheel sets for assisting movement of the planting box body, a planting chamber for planting plants is arranged in the planting box body, and the planting box body is provided with a braking mechanism for fixing the planting box body on designated ground and a braking chamber for accommodating working of the braking mechanism. Through arrangement of the above structure, carrying and fixingof the planting box can be effectively realized, carrying movement of the planting box is more easy and labor-saving, and the carrying efficiency of the planting box is improved. And the planting boxcan be reliably braked and fixed after carried, so that the planting box can be stably placed on the designated ground, deviation of the planting box when placed is avoided, and the stability of theplanting box is strengthened.

The invention discloses a window processing method for a planetary part. The window processing method comprises the following steps of: step a. determining a processing area, and processing a window cutting line on the planetary part according to design requirements to form a window processing area; step b. performing drilling operation, to be specific, spraying cooling liquid, forming a through hole by vertically drilling the window processing area so as to remove part of machining allowance, and forming a space in to which a milling cutter stretches, a chip removal channel and a cooling liquid channel in the through hole; and step c. performing milling operation, causing the milling cutter to stretch into the through hole for milling operation, assisting in cooling by adopting the cooling liquid so as to remove the machining allowance, and then performing finish machining to obtain a window of the planetary part. According to the window processing method for the planetary part, firstly the through hole is processed by high-efficiency drilling so as to quickly remove part of the allowance, meanwhile the through hole provides the chip removal channel and the cooling liquid circulating channel for milling, and then the milling cutter stretches into the through hole for cutting so as to remove the machining allowance. The entire cutting edge for the milling is uniformly stressedto avoid the excessive loss of the cutting edge.

The invention relates to a frequency conversion dust-free screening and crushing integrated machine. The dust-free screening and crushing integrated machine comprises a machine frame and crushing cavities. The first crushing cavity is composed of a first-level crushing roller, a counter-attack plate and a first-level counter-attack roller; the second crushing cavity is composed of a second-level crushing roller and a screening roller; the third crushing cavity is composed of a third crushing roller and a screening roller. A rubber plate at the bottom of the dust-free screening and crushing integrated machine and a conveying belt form a compact cavity. The top of the dust-free screening and crushing integrated machine is further provided with a feeding inlet and an air suction opening, and an air suction and dust removal device is arranged outside the air suction opening. A material conveying belt at the feeding inlet is provided with a sensor which is connected with a logic controller, the logic controller is connected with an alternating-current frequency converter, and the alternating-current frequency converter is connected with a first-level motor, a second-level motor and a third-level motor. According to the frequency conversion dust-free screening and crushing integrated machine, the rotating speed of the motors can be adjusted according to the material flow, and the working efficiency is improved; accordingly, the no-load or overload phenomena, electric energy waste and excessive loss of equipment are avoided.

The invention belongs to the field of biological medicine and particularly relates to a mosquito-repellent composition and a preparation method thereof. The mosquito-repellent composition comprises, by weight, 80-160 parts of a wild mint extract, 60-160 parts of caraway essential oil, 60-120 parts of citronella essential oil, 30-80 parts of pelargonium graveolens essential oil, 30-80 parts of peppermint oil, 50-100 parts of acorus calamus essential oil, 20-60 parts of lavender essential oil and 40-120 parts of d-8-acetoxycarvotanacetone. The mosquito-repellent composition can prolong the mosquito-repellent protection time of d-8-acetoxycarvotanacetone for users. The composition can be applied to the production, research and development of related mosquito-repellent products.

The invention discloses an intelligent electric cooker with a refrigeration function. The intelligent electric cooker comprises a shell, wherein the top end of the outer surface wall of the shell is movably connected with a sealing cover through a connecting shaft, a thermal insulation board is fixed to the upper surface of the sealing board through bolts, a lifting handle is fixed to the upper surface of the thermal insulation board through bolts, an air outlet cover is embedded on the lower surface of the sealing cover, elastic rods are fixed to the bottom end of the inner surface wall of the shell through bolts, a heating plate is elastically connected to the upper surfaces of the elastic rods, a liner is embedded to the upper surface of the heating plate, and an AVR central controlleris fixed to the bottom end of the inside of the shell through bolts. For the intelligent electric cooker with the refrigeration function, through the generated low-temperature gas, the low-temperature storage for food in the liner is realized, thus the phenomenon of deterioration of the food is avoided, the preservation time of the food is prolonged, meanwhile, in match with a double buffer structure comprising air cushion layers and the elastic rods, the influences of the shaking on the electric cooker are reduced, thus the use safety and stability of the electric cooker are improved, and the practicability is strong.

The invention discloses a post core removal guiding guide plate and a preparation method therefor. The preparation method comprises the following steps: S1. carrying out CBCT photographing so as to acquire DICOM data on an oral cavity and a broken post of a sufferer, and acquiring a preoperative cast by dental scanning equipment; S2. subjecting the DICOM data and the preoperative cast acquired in the step S1 to fitting, selecting a target post core diameter and length according to a repair principle based on fitting data, and determining a three-dimensional position of the target post core in the DICOM data and the preoperative cast; S3. generating a post core removal guide plate based on the selected post core size and the three-dimensional position; and S4. subjecting the post core removal guide plate generated in the step S3 to 3D printing molding, thereby obtaining the post core removal guiding guide plate. By applying the guide plate disclosed by the invention to post core removal, the problems of the traditional post removal technology that the accuracy is insufficient, deviation from major axis is present, and injury to a tooth body is large can be solved, and the aim of protecting tooth body tissue while rapidly and accurately removing a post is achieved.

The invention discloses a 5G base station energy storage regulation and control method considering a base station communication load state, and belongs to the technical field of energy storage charge and discharge control. The method comprises the steps of firstly, analyzing the energy storage and communication load state of the 5G base station, and determining whether the energy storage of the base station can be regulated or not according to the mains supply state, the load state of the base station and the energy storage charge-discharge frequency state; then determining the dispatchable capacity which can be provided for the power grid by base station energy storage participating in power grid collaborative interaction according to the communication load capacity of the base station; and finally, establishing a 5G base station energy storage participation power grid peak clipping and valley filling model by using the variance of the minimum load curve as an optimization objective function,formulating a 5G base station energy storage regulation and control strategy according to an optimization result, and controlling the base station energy storage to participate in power grid coordination and interaction. The method can stabilize the power fluctuation of the power grid, reduce the peak-valley difference and delay the upgrading of power grid facilities; and the base station energy storage participates in peak clipping and valley filling of the power grid, and the power utilization cost of an operator can be reduced by utilizing peak-valley arbitrage, so that the mutual benefit and win-win situation of the power grid and the communication operator is achieved on the premise of not influencing the communication service quality of the base station and the 5G user experience.

The invention relates to a side brush assembly, a cleaning robot and a moving method of the cleaning robot, belongs to the technical field of cleaning equipment, and solves the problem that bristles of the existing cleaning robot influence the smooth movement of the cleaning robot. The side brush assembly comprises a side brush body, a side brush motor and bristles, wherein the side brush body isprovided with a bristle accommodating part; the bristles are arranged in the bristle accommodating part; the side brush motor can drive the bristles to extend out of and / or retract from the accommodating part; or the side brush motor can drive the side brush body to rotate. According to the side brush assembly, the bristles of the side brush can be prevented from being clamped into a gap of the ground, the movement of the cleaning robot cannot be influenced, the electric quantity consumption is reduced, the ground robot can quickly move to a designated position, and the cleaning time of the cleaning robot can be prolonged.

The invention provides a wear-resistant feeding hole of a hoist, and belongs to the technical field of hoist accessory equipment. The wear-resistant feeding hole of the hoist comprises a feeding flange and a servo motor, wherein the lower part of the feeding flange communicates with a feeding hopper; a two-way transmission threaded rod is arranged in the feeding hopper; one end of the two-way transmission threaded rod is rotationally connected with an inner side wall of the feeding hopper; the other end of the two-way transmission threaded rod penetrates through the side wall of the feeding hopper, extends out of the feeding hopper and is fixedly connected with a driving end of the servo motor; two sections of threads on the outer surface of the two-way transmission threaded rod are equalin length and opposite in rotating direction; and the outer surface of the two-way transmission threaded rod is sleeved with two transmission threads in a threaded manner. During feeding, materials are accumulated at the lower part of the feeding hopper, and impact of the materials on the feeding hopper is avoided during continuous feeding, so that the effect of protecting the feeding hopper is achieved; and the phenomena that the feeding hopper is seriously abraded and short in service life are avoided by using the material ramming principle.

The invention discloses a routing control method based on big-scale WSN (wireless sensor network) emergency monitoring, which comprises four steps of building a network model, initializing a network, electing a cluster and transmitting data, wherein in the data transmission process, a cluster node selects a trunking mode of one hop or multiple hops to send effective monitoring data back to a gateway node according to the fact whether the gateway node is in a self 'neighbor node log sheet'; and in the trunking mode of multiple hops, the current node selects different algorithms to find a next-hop route node according to the self residual energy situation. The routing control method has the outstanding effects that the cluster node and the gateway node are communicated in the trunking mode of one hop or multiple hops to avoid excessive energy loss caused by long-distance transmission. According to the mechanisms of a cluster node and relay node election method, self-adaption power regulation, message delay forwarding control and the like, network energy consumption is saved and balanced so as to delay the time of the first dead node and improve the network performance.

The invention discloses a magnetic-type wall-climbing robot for assisting in cleaning. The magnetic-type wall-climbing robot comprises a bottom plate, a suction cup base is arranged in the middle of the inner side of the bottom plate, a baffle is arranged on the top of the suction cup base, installing key grooves are symmetrically formed in the two sides of the outside of the suction cup base, a vacuum suction cup is fixedly installed at the position, corresponding to the suction cup base, of the middle end of the bottom of the bottom plate, leaking-stoppage edge glue is fixedly bonded to theedges of the outer side of the vacuum suction cup, and attraction magnetic blocks are fixedly installed on the outer side of the vacuum suction cup. The magnetic-type wall-climbing robot for assistingin cleaning is scientific and reasonable in structure and safe and convenient to use, the wall-climbing robot can conduct attraction activity on the nonmagnetic wall through the suction cup base andthe vacuum suction cup; it is avoided that a gap is formed between the vacuum suction cup and the wall surface through the leaking-stoppage edge glue, and the stability when the vacuum suction cup conducts attraction is thus guaranteed; meanwhile, through the attraction magnetic blocks, the stability when the wall-climbing robot operates is further improved when the wall-climbing robot works on the wall surface with the magnetism, and the application range of the wall-climbing robot is widened.

The invention provides a drive device for a polishing disk. The drive device includes a fixing disk, a rotating mechanism, a machine frame and a horizontal moving mechanism. The fixing disk is internally provided with a cooling flow channel, and the fixing disk is connected with the polishing disk. The rotating mechanism includes a main shaft and a first drive component for driving the rotation ofthe main shaft, and the fixing disk is connected to the upper end of the main shaft. A cooling pipe communicating with the cooling flow channel is arranged in the main shaft in a penetrating mode, and the main shaft can rotate to drive the fixing disk and the polishing disk to rotate synchronously. The machine frame is provided with a supporting frame, and the first drive component is connected to the machine frame. The horizontal moving mechanism includes a moving plate and a second drive component, and the moving plate sleeves the outer part of the main shaft and is connected with the supporting frame. The second drive component is connected with the moving plate and can drive the moving plate to perform horizontally reciprocating movement, and the moving plate can move to drive the machine frame to move synchronously. The drive device for the polishing disk can not only cool the polishing disk, but also make full use of the usable area of a polishing pad to avoid excessive wear ofthe polishing pad caused by polishing at a same position.