1007results about How to "Achieve protection" patented technology

The invention relates to the technical field of medical image processing, in particular to a medical image enhancement processing method and system based on deep learning, and the method comprises the steps: selecting an image enhancement model according to whether the number of samples needs to be expanded or not; if the number of samples needs to be expanded, performing image enhancement by adopting a generative adversarial network, otherwise, performing image enhancement by adopting an auto-encoder; a federal learning architecture is adopted to train a model, and the model is trained on a plurality of scattered devices or servers. The generative adversarial network is used to generate diversified medical image samples, and the diversity of the samples is improved. And the auto-encoder extracts key features and generates new samples, so that the diversity of data is increased. Through a federal learning architecture, by using dispersed data sources, the diversity of training samples of the model is enhanced, and meanwhile, data privacy is protected. And the diversity of samples is effectively increased, so that the generalization ability of the model is improved, and the method has higher robustness and accuracy in practical application.

The invention discloses rapid die casting equipment for aluminum alloy die castings, and relates to the technical field of metal die casting. A first channel is formed in a die plate and an ejector rod, and a spray hole communicating with the first channel is formed in the ejector rod; according to the device, the mold release agent can be sprayed to the relatively-closed die-casting cavity in a mold closing state, the comprehensive uniformity of the mold release agent during adhesion is improved, the demolding effect after a die casting is formed is improved, the mold release agent is sprayed in the relatively-closed die-casting cavity, and the mold release effect is improved. According to the die-casting mold core, the release agent can be prevented from escaping outwards, the surrounding environment can be protected easily, waste of the release agent can be avoided, energy-saving, environment-friendly, green and efficient die-casting production is achieved, meanwhile, the spraying holes are formed in the cylindrical face of the end of the ejector rod, the spraying holes cannot be exposed when the ejector rod retracts into the die core, and the die-casting mold core is more environment-friendly. And interference to die-casting production due to the fact that the spraying holes are exposed in the die-casting cavity can be avoided.

The invention discloses a dry-type transformer. The dry-type transformer comprises a transformer body, a housing, a bottom plate and a fan, wherein the transformer body is formed by a plurality of groups of encapsulated windings in an array mode, a supporting rod is arranged at the bottom of the transformer body and allow the encapsulated windings in each group to connect with each other, the supporting rod is arranged in a crossed mode, and first threaded holes penetrate the supporting rod; the transformer body is integrally arranged in the cavity of the housing, and the bottom of the transformer body is fixedly positioned with the bottom plate, and meanwhile, the transformer body is arranged in the housing through the fan, the whole device achieves dispelling the heat in the transformerbody, and the graphite material of housing side is protruding simultaneously, and the heat from the housing is diffused quickly, and the protrusion of the array distribution can reduce the air great dust entering the inner wall of the housing through air vents.

The invention provides a sea surface pollution intelligent monitoring system based on multi-source data, and the system comprises a comprehensive analysis module, an information topology module, a sea surface monitoring module, and the sea surface monitoring module is used for obtaining sea surface pollution monitoring data. The data transmission module realizes interactive communication between the sea surface monitoring module and the information topology module, and the interactive communication comprises transmitting sea surface pollution monitoring data to the comprehensive analysis module; the comprehensive analysis module and the information topological optimization module are used for analyzing and early warning multi-source data, integrating, cleaning and analyzing the data, identifying and correcting errors, abnormities or noise in the data, ensuring the accuracy and credibility of the data, mining data information by using deep learning, then performing intelligent decision distribution, and finally performing data processing. And the monitoring, early warning and emergency response capabilities of sea surface pollution events are improved. Through the above modules, omnibearing, three-dimensional and real-time monitoring and early warning of offshore sudden pollution can be realized.

The invention provides a network security situation real-time perception and co-processing method, which comprises the following steps of: acquiring a test question downloading log in a campus network, extracting downloading time, user identity, course information and downloading quantity from the downloading log, and discretizing the extracted data to form a scattered batch initial behavior data set; analyzing the early warning signal and the sandbox environment security log, and if the resource occupancy rate suddenly rises, the authority is frequently changed and the network traffic is soaring, judging that the sandbox boundary is maliciously broken through, and obtaining a breakthrough feature analysis result; and dynamically adjusting a sandbox security policy according to the breakthrough feature analysis result, wherein the sandbox security policy comprises limiting the downloading permission of an abnormal anonymous account, isolating soaring malicious traffic, optimizing the allocation of swell resources, and applying the dynamically adjusted sandbox security policy to the sandbox.

The utility model provides a wheel speed sensor signal analysis circuit, which is used for enabling the circuit to be compatible with a standard current type wheel speed sensor and an AK protocol current type wheel speed sensor at the same time, and comprises an overcurrent protection module, a current sampling resistor and a wheel speed signal output module, the overcurrent protection module is used for closing the connection with the wheel speed signal output module when the signal of the wheel speed sensor is short-circuited; the wheel speed signal output module is used for outputting a level signal corresponding to a wheel speed sensor signal; the overcurrent protection module is connected with one end of the current sampling resistor; one end of the current sampling resistor is connected with the wheel speed signal output module; the other end of the current sampling resistor is grounded.

The invention relates to the technical field of biochar preparation materials, and discloses a preparation method of a modified coal gangue-municipal sludge-based biochar soil conditioner, which comprises the following steps: crushing a coal gangue raw material and a municipal sludge raw material to obtain coal gangue powder and municipal sludge powder; the coal gangue powder and the municipal sludge powder are leached to obtain leached coal gangue powder and leached municipal sludge powder, the leached coal gangue powder and the leached municipal sludge powder are mixed to obtain mixed solid waste powder, the mixed solid waste powder is pyrolyzed to obtain pyrolyzed biochar, the pyrolyzed biochar is acidized to obtain acidized biochar, and the acidized biochar is acidized to obtain acidized biochar. The acidified biochar is subjected to ball milling, and first modified biochar is obtained; active sites of the first modified charcoal are increased, and the target charcoal soil conditioner is obtained. The soil improvement effect of the biochar can be improved.

The invention relates to a privatized large model fine tuning training method and device based on split learning, and the method comprises the steps: splitting a pre-trained large model into a head model segment, a middle model segment, and a tail model segment; splitting the original data into private data and non-private data; according to the privacy data and the non-privacy data, cooperatively training a head model segment and a tail model segment in the client and a first intermediate model segment and a second intermediate model segment in the server to obtain a target large model; wherein in the cooperative training process, a privacy intermediate activation amount which is transmitted between a client and a server and is related to privacy data is subjected to homomorphic encryption; the target large model outputs a document reply about a particular topic. According to the method and the device, the problem that the risk of speculating or recovering the original data through model inversion attack exists due to the fact that the intermediate activation amount needs to be transmitted to the server in the prior art is solved; the privacy data is protected, and the risk of privacy data leakage is reduced.

The three-dimensional ecological protection structure comprises anchor rods, planting boxes, planting pits, steel wire ropes, water intercepting plates and sashes, wherein the sashes are formed in the mode that transplanted fresh adult straight forests are attached to the horizontal slope face and incline upwards. The anchor rods are vertically buried at the slope toe in rows, and the planting pits are located between the anchor rods and a slope toe drainage ditch; the planting boxes are divided into slope surface A type planting boxes and slope toe B type planting boxes, the B type planting boxes are located in slope toe planting pits, and the A type planting boxes are sequentially and tightly arranged in rows from the slope toe anchor rods to the slope surface in the slope direction to form a planting belt; an opening is formed in the free side wall of the A-type planting box, transplanted fresh adult straight forest trees are planted into the A-type planting box from the opening and obliquely upwards attached to the horizontal slope face, the adult forest trees between every two adjacent rows of planting belts grow oppositely and obliquely upwards by a certain angle, and therefore fresh forest tree lattices are formed on the slope face. The landscape trees and landscape trees vertically planted in the slope toe B-type planting box jointly play a role in three-dimensional ecological slope protection. According to the structure, the continuity of ecological slope protection and the safety of slope engineering can be achieved at the same time.

The present invention relates to the technical field of ecological concrete slurry, and specifically to an ecological seed-carrying slurry for the slope of a mine dump, a preparation method and its application. Aiming at the special environmental characteristics of the Inner Mongolia mining area, the present invention prepares a new type of artificial aggregate containing growth domains and seeds, which is composed of a three-layer structure, each layer having a specific function, so as to achieve the purpose of promoting the germination of multi-source species, plant growth, providing nutrition and improving the soil environment. The slurry can not only effectively utilize solid waste and reduce costs, but also adopts in-situ point-type layered hole sowing to shorten the vegetation restoration cycle in the ecological restoration of the slope, greatly improve the survival rate of tree and shrub seed sources, reduce the number of watering times, save restoration costs, and reduce the workload of management. While effectively promoting vegetation restoration, it strengthens the stability of the slope, prevents soil and water loss, slows down runoff and consolidates the soil, providing an efficient and sustainable solution for the ecological restoration of green mines in Inner Mongolia.

The utility model relates to the technical field of roadway tunneling supports, and discloses a roadway tunneling support forepoling protection mechanism which comprises a first protection net frame, two symmetrical fixing blocks are arranged at one end of the first protection net frame, protection mechanisms are arranged on the faces, close to each other, of the two fixing blocks, and a second protection net frame is arranged at the bottom of the first protection net frame. Adjusting mechanisms for adjusting the position of the second protective net frame are arranged at the two ends of the second protective net frame, a driving device for driving the adjusting mechanisms is arranged at one end of one fixing block, and each adjusting mechanism comprises two symmetrical mounting blocks fixed to the bottom of the first protective net frame. When the motor runs, the first bevel gear can drive the first lead screw to rotate, the first sliding block can drive the second protection net frame to move, the length of the second protection net frame can be adjusted, and then the effect of automatically adjusting the length area of the first protection net frame is achieved.

The invention relates to the technical field of government affair Internet of Things, and discloses an Internet of Things service data encryption and privacy protection method and device, and the method comprises the steps: collecting real-time data items from government affair Internet of Things equipment through a wireless sensor network through the Internet of Things technology to form a government affair data set, and carrying out the encryption processing; calculating and evaluating the sensitivity delta f of each data item in the government affair data set and a query result corresponding to the data item through a differential privacy algorithm, and adding random noise according to the sensitivity delta f and a privacy budget epsilon, and performing government affair service efficiency, government affair anomaly monitoring, government affair demand prediction and government affair complaint risk prediction analysis on the government affair data set added with the random noise by adopting a machine learning algorithm, providing data service for an analysis result through an API (Application Program Interface), and dynamically adjusting the sensitivity delta f, the privacy budget epsilon and the adding degree of the random noise according to an evaluation result. While data security and government affair privacy are guaranteed, data analysis efficiency and accuracy are improved, government affair management is optimized, and adaptability and expandability are achieved.

The invention relates to an electric vehicle charging control method and circuit, a charging device and a storage medium. The method comprises the following steps: detecting whether the charging device obtains direct-current input voltage; if the direct-current input voltage is obtained, the charging device is started to charge a vehicle battery; and carrying out charging monitoring on the charging process to obtain a charging current, and if the charging current reaches a preset current value, stopping charging by the charging device. Whether the DC input voltage exists or not is detected before charging, and then whether the charging device is started for charging or not is determined; real-time monitoring is carried out in the charging process, charging is cut off in time when the charging current reaches the preset current value, battery explosion, battery life damage and electric quantity waste caused by long-time charging after the battery is fully charged are avoided based on multi-layer charging protection, and the charging safety of the electric vehicle battery is improved.

According to the semi-automatic ball loading machine provided by the invention, the ball protecting rod suitable for the ball screw pair structure in the semi-automatic ball loading machine is matched with the ball injecting structure, so that in the steel ball mounting process, the mounted steel balls are protected, the manual participation rate in the steel ball mounting process is reduced, and the steel ball mounting efficiency is improved.

The invention relates to the technical field of conductive connecting devices, and particularly discloses a grounding electric connector which is characterized in that a second male end body is in elastic sliding connection with a first male end body, a sealing cavity is formed in the second male end body, and a pin module is fixedly arranged on the first male end body and is arranged in the sealing cavity; the second male end body is provided with a first opening communicated with the sealing cavity, and a first sealing door is rotationally embedded in the end part; one end of the connector female end is provided with a groove used for containing the second male end body in a sealed mode, the connector female end is provided with a second opening communicated with the jack module and the groove, a second sealing door is rotationally embedded in the part, and a driving mechanism is arranged between the second sealing door and the first sealing door. According to the grounding electric connector, the first sealing door and the second sealing door can protect the contact pin and the jack in a normal state, and a closed environment can be provided for the connection position of the contact pin and the jack through cooperative use of the groove and the second male end body, so that dustproof treatment of the contact pin and the jack is realized, and excellent and reliable electric connection is ensured.

The invention discloses an efficient logistics storage scheduling system, and relates to the technical field of logistics storage scheduling, and the technical scheme is that the system comprises a storage scheduling management module, the connection end of the storage scheduling management module is provided with a data analysis optimization module, and the storage scheduling management module comprises an automatic scheduling module and a storage safety and stability guarantee module. The beneficial effects of the system are that through the automatic warehousing operation module, the links of manual operation are reduced, rapid and accurate cargo processing is realized, the overall logistics efficiency is significantly improved, the transportation route can be intelligently optimized according to the real-time order quantity and the transportation demand, and the transportation efficiency is improved. According to the method and the system, the waiting time and the empty driving rate are reduced, the logistics efficiency is further improved, the manpower demand is reduced through automatic and intelligent storage scheduling, the labor cost is reduced, and through real-time inventory state monitoring and accurate demand prediction, inventory overstock and excessive replenishment can be reduced, and the inventory cost is reduced.

The invention discloses a modularized intelligent low-voltage measurement and control device, and relates to the technical field of modularized intelligent low-voltage measurement and control devices, the modularized intelligent low-voltage measurement and control device comprises a measurement and control mechanism, the measurement and control mechanism comprises two connecting blocks and two hand twisting rods, the top of each connecting block and the bottom of each connecting block are provided with plate grooves, and the plate grooves are connected with the hand twisting rods. A perforated plate is arranged in each plate groove, hand screwing bolts penetrate through the surfaces of the two connecting blocks in a threaded mode, torsion springs are arranged on the outer surfaces of the two hand screwing rods, and clamping holes are formed between the inner walls of the rectangular holes and the inner walls of the rectangular grooves; according to the modularized intelligent low-voltage measurement and control device, through the arrangement of the auxiliary mechanism, the measurement and control device can have multiple installation modes, then the use places of the modularized intelligent low-voltage measurement and control device can be increased, and then the use efficiency of the modularized intelligent low-voltage measurement and control device can be improved.

The invention discloses an organic solvent recovery device. The device comprises a pretreatment mechanism, an adsorption mechanism, a steam furnace and the like. The pretreatment mechanism is provided with a filter and a cooler for primarily treating a solvent; the adsorption mechanism is composed of a spiral activated carbon plate, a central electrode and an interlayer electrode, the adsorption process of a solvent is optimized through an electric field, and the service cycle of an adsorption material is prolonged. A vacuum adsorption pump is further arranged in the adsorption mechanism, and the adsorption effect of solvent steam is enhanced by generating a vacuum environment. In addition, the device is further provided with a reversible power supply, reverse regeneration of the adsorption material can be achieved, and the replacement frequency is reduced. The steam furnace is connected with the adsorption mechanism, and solvent recovery is conducted through steam heating. And the rear end of the device is connected with a chimney discharge system to ensure that waste gas discharge meets environmental protection requirements. Through the double adsorption mechanisms and the innovative electrode design, the recovery efficiency is remarkably improved, the operation and maintenance cost is reduced, the environmental protection standard is met, and high economic benefits and social benefits are achieved.

The invention discloses a multi-spectral-band compatible stealth coating based on a high-entropy alloy and a preparation method of the multi-spectral-band compatible stealth coating, and belongs to the technical field of functional high-entropy alloy coatings and preparation of the functional high-entropy alloy coatings. The problem that the visible light and infrared stealth effect of an existing stealth coating in a wide spectrum range is poor is solved. According to the preparation method, the high-entropy alloy film is prepared through the magnetron sputtering technology, efficient customization of material components and structures is achieved through scientific screening and optimal combination of elements and regulation and control of magnetron sputtering parameters, and therefore the high-entropy alloy film which is uniform, compact and excellent in performance is obtained. Test results show that the visible light band absorptivity of the high-entropy alloy coating is about 0.95, the infrared band emissivity of the high-entropy alloy coating is about 0.05, and multi-spectrum-band compatible stealth in the visible light and infrared spectrum range is achieved.

The invention discloses a programmable metasurface unit chip and a programmable metasurface, and the unit chip sequentially comprises a first dielectric layer, a first bonding dielectric layer, a controllable metal layer, a second bonding dielectric layer, a third dielectric layer, a third metal layer, a third bonding dielectric layer, a fourth dielectric layer and a fourth metal layer from top to bottom. The controllable metal layer comprises a metal structure and a controllable element and is used for forming two isolation electromagnetic wave regulation and control channels so as to independently control orthogonal polarization electromagnetic waves and provide independent and controllable electromagnetic response for the incident orthogonal polarization electromagnetic waves; the third metal layer is used as a radio frequency ground for improving the electromagnetic wave reflection performance; the fourth metal layer is used for inputting bias voltage; and bias voltage is loaded to the controllable element through the metal holes of each layer. The plurality of unit chips are arranged on the substrate in an array mode to form the metasurface. The unit chip provided by the invention can greatly reduce the design and implementation complexity of the metasurface, reduce the production and maintenance cost, and promote the application of the metasurface in a wireless information system.

The invention relates to the technical field of water supply control, and provides a water source regulation and control system and method based on improved PID control, and the method comprises the following steps: obtaining monitoring data of a water plant, including water inlet flow and water outlet flow of a water source clean water tank; monitoring data are input into the improved PID controller, PID parameters are adjusted in a self-adaptive mode according to the obtained difference value of the water inlet flow and the water outlet flow, PID adjustment is executed according to the adjusted PID parameters, and the regulation and control amount of the water inlet amount of the emergency water source is output; and regulating and controlling the execution mechanism based on the regulation and control quantity to realize water inlet control of the water source. According to the invention, the PID parameters of the PID controller are automatically adjusted and the PID controller is improved based on the real-time difference between the inlet water and the outlet water of the clear water tank of the water plant, so that the liquid level of the clear water tank of the water plant of the emergency water source can be controlled in real time, the liquid level change can be responded more quickly and accurately, and the waste of water resources is avoided.

The utility model provides a cutting pick assembly protection device, which comprises an expanding digging plate, a screw and a screw hole, the screw hole is arranged on the side wall of a high-position end cover ring, and the expanding digging plate is fixed on the high-position end cover ring by installing the screw in the screw hole. And a wear-resistant welding layer is arranged on the peripheral surface of the expanding digging plate. The expanding excavation plate is convenient to mount and easy to dismount, and the cutting teeth are protected. The wear-resistant welding layer is arranged on the outer surface of the expanding excavation plate, so that the contact area between the expanding excavation plate and the coal seam is increased, the expanding excavation plate participates in the rock breaking process of the coal wall, the expanding excavation performance of the end disc is improved, and the mining efficiency is improved.

The utility model relates to the technical field of connectors, in particular to a high-voltage connecting assembly. The high-voltage connecting assembly comprises a socket, a plug and a bolt, the socket comprises a plug-in terminal, the plug comprises a terminal, the end face of the plug-in terminal is provided with a threaded hole, the terminal is provided with a through hole, and the bolt penetrates through the through hole and is in threaded connection with the threaded hole; the socket further comprises an installation cylinder and an interlocking loop arranged in the installation cylinder, the plug further comprises an interlocking piece capable of axially sliding in the installation cylinder, an interlocking screw connected with the interlocking piece and an insulation cap at least capable of covering the exposed portion of the bolt, and one end, facing the plug, of the installation cylinder is provided with an internal thread. The insulation cap is provided with a mounting hole, and the interlocking screw passes through the mounting hole and is in threaded connection with the internal thread, and simultaneously drives the interlocking member to slide axially and is communicated with the interlocking loop. According to the utility model, the whole structure is simpler, the manufacturing cost is lower, and the safety performance is improved.

The utility model relates to the technical field of gas detection equipment, and discloses a portable combustible gas detector which comprises a detector body, an air inlet pipe used for air inlet is fixedly installed on the top face of the detector body, a sealing structure for shielding an air inlet hole of the air inlet pipe is arranged on the wall face of the detector body and comprises a sealing body, a sliding body and an extension rod, the sealing body is fixedly connected with the sliding body, the sealing body is arranged on the wall face of the air inlet pipe in a sleeving mode, and the sliding body is elastically connected with the detector body. The sliding block is pushed by the spring to slide in the sliding groove, the sliding body drives the sealing body to move upwards to seal the gas inlet in the wall face of the gas inlet pipe, when gas is needed to enter the detector body from the inlet, the sliding body can be pulled to drive the sealing body to slide downwards to be exposed out of the gas inlet, and when the whole device is loaded or idle, the sealing body is closed. The probability that dust or floccules enter the gas inlet pipe to interfere with detection gas can be reduced, the whole equipment is protected, and the detection precision is guaranteed.

The utility model discloses an open gas protection integrated high-frequency coil, which relates to the field of high-frequency coil welding and comprises an induction body, the induction body is mounted on a power supply base, and power is supplied to the induction body through the power supply base; a first isolation belt and a second isolation belt are sequentially formed in an inner cavity of the induction body from outside to inside, a water flow cavity is formed between the outer wall of the first isolation belt and the inner wall of the induction body, and the water flow cavity achieves water flow circulation through an external water inlet pipe and an external water outlet pipe. An air flow cavity is formed between the inner wall of the first isolation belt and the outer wall of the second isolation belt, the water flow cavity and the air flow cavity are separated through the first isolation belt, the bottom of the air flow cavity is connected with an air inlet pipe used for introducing shielding gas, and a welding induction hole is formed in the inner side of the second isolation belt in a penetrating mode and used for placing a welding part; and the airflow cavity is communicated with the welding induction hole. According to the utility model, only one group of open-type high-frequency coils is needed to realize synchronous heating and shielding gas introduction.

The invention discloses a mosquito control method and system based on carbon dioxide luring and powerful airflow repelling. The method comprises the steps that carbon dioxide airflow simulating human respiration is released in a preset attracting area to attract mosquitoes; monitoring whether mosquitoes enter a preset defense range or not in real time; when mosquitoes enter, the airflow injection unit is controlled to output pulse type strong airflow to flush away the mosquitoes, and meanwhile the concentration of carbon dioxide is diluted to destroy the smell positioning capacity of the mosquitoes. And repeating the steps to continuously form the dynamic protection field. The whole process of the method does not contain any catching and killing step, so that'only repelling but not killing 'is realized. The system supports multiple modes of automation, timing, manual operation and silence, COs can be generated by adopting DAC materials through biological fermentation or chemical slow release, and different cost requirements are met. The technical prejudice that mosquito prevention must be killed is overcome, non-killing mosquito management is achieved for the first time, and the method can be widely applied to courtyards, baby rooms, temples, ecological communities and other places and is environmentally friendly and free of pollution.

The utility model provides a photovoltaic power station booster station grounding device, and relates to the technical field of photovoltaic booster station grounding, the photovoltaic power station booster station grounding device comprises a device housing and a safety mechanism, the safety mechanism is arranged on the outer side of the device housing, through the arrangement of a protection assembly and the design of a protection cover, a key hole and a clamping block, the device is protected, and the safety of the device is improved. Unauthorized access is prevented, meanwhile, a safety mechanism is provided, operation is safer and more controllable, through the arrangement of the safety mechanism, it is ensured that current rapidly and effectively flows into the ground through the pre-embedded assembly, the reliability of a grounding system is improved, a graphite grounding resistance reduction module in the resistance reduction assembly is made of a graphite material, the system resistance can be effectively reduced, and the reliability of the grounding system is improved. The detection assembly monitors the state of the system in real time, provides visual display, allows manual operation to trigger specific functions, increases the flexibility of the device, and the lightning protection assembly guides lightning into the ground and ensures that the lightning is safely conducted to the grounding resistance reduction module, thereby improving the lightning protection effect.

The invention discloses an intelligent string type container energy storage system. The system is composed of a battery system, a battery management system, a heat management system, a fire extinguishing system, a PCS system and an energy storage controller which are integrally mounted and fixed in a container body. According to the energy storage system, one-cluster-one-management is achieved through an energy storage system string-type framework, the battery clusters are connected with the PCS in series and then connected with the PCS in parallel, the series-parallel mismatching problem of the system is solved, all battery packs achieve 100% discharging, one-pack-one-optimization of the system is achieved, the battery packs are balanced and consistent, maximum charging and discharging of the single battery packs are achieved, one battery pack optimizer is integrated in each battery pack, and the energy storage efficiency is improved. The optimizers are connected in parallel with the battery cells, and the optimizers in the battery cluster are directly connected in series, so that the service life of the battery cells in the life cycle is prolonged by 10%, and the available capacity is improved; the energy storage system is high in reliability, convenient to maintain and higher in system safety, each battery cluster independently controls charging and discharging, the situation that the discharge capacity is affected by bias current is avoided, meanwhile, single-cluster fault isolation is achieved, fault diffusion and system whole disabling are avoided, and the safety performance is further improved.

The invention relates to the technical field of chain machining, in particular to an electric saw chain machining platform with a protection mechanism, which comprises a box body, a protection plate and an intermittent overturning platform, and further comprises a pressing mechanism movably mounted in the box body, a driving mechanism fixedly mounted on one side of the box body and an automatic feeding mechanism fixedly mounted on the back surface of the box body, eight sets of positioning mechanisms are installed on the outer side of the intermittent overturning platform at equal intervals through sliding grooves, and one end of the intermittent overturning platform is in transmission connection with the automatic feeding mechanism. The driving mechanism drives the intermittent overturning platform to intermittently rotate, the pressing mechanism vertically reciprocates, meanwhile, the intermittent overturning platform drives the automatic feeding mechanism to perform reciprocating feeding, and the pressing mechanism drives the positioning mechanism and the protection plate to cooperatively work, so that linkage of continuous feeding, accurate positioning, safety protection and machining is realized, and the production efficiency is improved. And the machining efficiency and the operation safety of electric saw chain parts are remarkably improved.

The invention relates to an overcurrent protection circuit and method of a motor controller. The overcurrent protection circuit comprises a sampling module, a first detection module and a control module. The sampling module is used for collecting operation current of the motor controller and generating sampling voltage according to the operation current. The first detection module is electrically connected with the sampling module; the first detection module is used for outputting a first level signal under the condition that the sampling voltage meets an overcurrent protection condition; the control module is connected with the first detection module and used for stopping sending the control signal to the motor controller under the condition that the first level signal is received. According to the invention, the sampling voltage generated by the operation current of the motor controller is detected, and the motor controller stops working under the condition that the sampling voltage meets the overcurrent protection condition, so that the motor and the motor controller can be prevented from being damaged due to the overlarge operation current.