31results about How to "Avoid Overloading" patented technology

The utility model provides an agricultural product distribution unmanned aerial vehicle with an image recognition function, which relates to the technical field of unmanned aerial vehicle recognition and comprises a six-rotor vehicle body, and a rotary shooting device used for image recognition is fixedly arranged on the front side of the bottom of the six-rotor vehicle body. A grabbing frame is fixedly arranged at the bottom of the six-rotor aircraft body; the lower portions of the two sides of the grabbing frame protrude outwards, two sets of micro electric cylinders are fixedly arranged outside the protruding positions, U-shaped sliding blocks are fixedly arranged at the telescopic ends of the micro electric cylinders, and assembling buckles are fixedly arranged outside the U-shaped sliding blocks. A grabbing frame is arranged, the combined type assembling function is provided, agricultural products can be automatically grabbed, the grabbing frame is moved to the position above a distribution box through positioning, supporting is achieved through a limiting protruding block, a micro electric cylinder is used for pushing a U-shaped sliding block to move, assembling buckles are inserted into butt joint through grooves, and then assembling can be completed; and the distribution box is driven by the assembly buckles to fly up, so that distribution can be executed, and the problem that an existing unmanned aerial vehicle lacks a combined distribution function is solved.

The utility model relates to the technical field of landscape elevator security and protection, and particularly discloses a security and protection system for a suspension bridge main tower attached landscape elevator, which comprises a waiting channel, a ticket checking gate, a camera and a weighing platform, the waiting channel is arranged at an elevator doorway, the camera is arranged above the waiting channel, and the camera is connected with an image recognition module and is used for recognizing the number of people in the waiting channel; the ticket checking gate machine is installed at an entrance of a waiting channel and connected with the controller, the controller controls the ticket checking gate machine to open or close ticket checking, a weighing table is arranged at the entrance of the ticket checking gate machine and measures the weight of a ticket checker, and a mass sensor is arranged below the weighing table and connected with a calculation module. The calculation module and the image recognition module are both connected with the controller, the controller controls the ticket checking gate to be opened or closed for ticket checking according to the weight collected by the mass sensor and the number of people recognized by the image recognition module, the number of people entering the elevator and the weight of people entering the elevator are accurately controlled, and overload of the elevator is effectively prevented.

The application provides a network load balancing method, device and electronic equipment. The method comprises: decomposing a task of performing load balancing on a target network into subtasks of layered reinforcement learning according to levels of the target network. Parameters of layered reinforcement learning are configured for each subtask, including: a state set, a policy set, an action set, a terminal state set, a state transition function and a reward function, a state in the state set is a load balancing index value of a level corresponding to the subtask, a terminal state in the terminal state set is a load balancing index value of the level corresponding to the subtask satisfying a load balancing standard, and a policy in the policy set is a load adjustment policy of the level corresponding to the subtask. Layered reinforcement learning is performed on the subtasks corresponding to the levels in the target network, relative optimal policies of the subtasks of at least two levels are obtained, and the determined optimal policies are combined into a global policy for performing load balancing on the target network, so that load adjustment is performed on the target network.

The embodiment of the invention is suitable for the technical field of low-altitude operation, and provides a low-altitude spraying operation system, the weight of an aircraft hose movable part is preset according to the maximum load of an aircraft, and the length of the movable part is preset according to the shortest safety distance between the aircraft and an operation face. The maximum load of the aircraft is larger than the weight load of the spraying device, and the movable part is the sum of the weight load borne by the aircraft and the external force load formed by the lateral pulling force of the movable part, so that the aircraft is prevented from being overloaded, and the aircraft can resist lateral disturbance of the hose; the length of the movable part is larger than the minimum safety distance between the aircraft and the working face minus the horizontal distance between the connecting point and the working face, the length of the movable part is positively correlated with the weight, and the operation safety of the aircraft is further ensured.

The utility model discloses an externally-hung vacuum display control device which comprises a display control cabinet, a limiting ring and a lifting rod. The limiting ring is rotationally connected to the upper portion of the display control cabinet, and a plurality of lifting rods are arranged on the upper portion of the display control cabinet; the three extrusion plates slide in the limiting ring; the inner air bag is mounted on the outer side of the lifting rod; the water pipe is arranged at the lower end in the display control cabinet; the fixing ring is arranged in the limiting ring, and a fixing rod for driving the extrusion plate to move is clamped in the fixing ring in a sliding manner; and the tubular column is fixed to the lower end of the interior of the display control cabinet, and a piston slides in the tubular column. According to the externally-hung vacuum display control device, the gap between the lifting rod and the extrusion plate is filled with the inner air bag, so that the sealing function is achieved, water is prevented from entering the display control cabinet, the phenomenon that internal parts are aged is prevented, and the internal parts are protected.

The present application relates to the technical field of steam turbine stator overhaul lifting appliance, in particular to a power plant steam turbine stator overhaul lifting appliance, which comprises a first overhaul lifting structure and a second overhaul lifting structure, the side end of the first overhaul lifting structure is fixedly connected with the second overhaul lifting structure, and the first overhaul lifting structure and the second overhaul lifting structure are the same in structure; the first overhaul lifting structure comprises a control pushing component and a lifting control component, the lower end of the control pushing component is slidingly connected with the lifting control component, the control pushing component comprises a limiting frame, a support pedestal, a pushing rod and a hydraulic control seat, the center side end of the hydraulic control seat is telescopically connected with the pushing rod, the side end edge position of the hydraulic control seat is fixedly connected with the support pedestal, the support pedestal is fixedly connected with the limiting frame, and the lifting control component comprises a support rotating mechanism and a lifting connecting mechanism. Through the setting of the first overhaul lifting structure and the second overhaul lifting structure, the steam turbine stator overhaul lifting work is facilitated.

The utility model discloses a kind of film winding pressure roller structure, it is related to film winding technical field, including the pressure roller assembly of overhanging being arranged on winding shaft, the pressure roller assembly includes two groups of parallel arrangement mounting plate and the pressure roller of being arranged in the inboard of two mounting plates, and the rotary axis of pressure roller and the rotary axis of winding shaft is parallel state arrangement, to when winding film is wound on winding shaft, pressure roller is pressed to film with the resistance of towards winding shaft, and the effective resistance length of pressure roller is greater than the width of film.The utility model is designed by overhanging type pressure roller assembly, so that winding shaft and pressure roller axis parallel collimation layout, the design of the effective resistance length of pressure roller set exceeds film width, forms axial full coverage type line contact pressing interface, can inhibit edge stress relaxation phenomenon in winding process, guarantee the consistency of roll material end face neatness and interlayer tightness.

The application discloses a tumor electric field treatment system and an electrode sheet and a tumor treatment device thereof, wherein the electrode sheet comprises a substrate, a plurality of electrode sheet units, a plurality of temperature sensors and a multiplexing unit arranged on the substrate, each electrode sheet unit can apply an alternating voltage, each temperature sensor is arranged corresponding to one electrode sheet unit to detect the temperature at the corresponding electrode sheet unit, the multiplexing unit is connected with each temperature sensor, and the multiplexing unit is configured to output the analog temperature signals detected by each temperature sensor in time sharing mode, so that greater temperature sensor coverage can be achieved without increasing the number of cable cores, the weight of the electrode sheet is prevented from being too large, the pasting effect of the electrode sheet is maintained, meanwhile, the electrode sheet outputs analog temperature signals, the setting of an ADC sampling unit and the like on the electrode sheet is avoided, the overall weight of the electrode sheet is further reduced, and the pasting effect of the electrode sheet is improved.

The utility model discloses a sealing tool capable of being inserted into a gas-lift lifting efficient liquid drainage drill rod in a sliding mode. The sealing tool is a pipe column matching tool for gas-lift oil extraction in an oil field. The sealing device comprises an oil pipe connector, a drill rod upper connector, an insertion sealing head, an insertion sealing cylinder, a pressing ring I, a polytetrafluoroethylene sealing packing, a pressing cap I, a middle spacer ring, a bidirectional reciprocating elastic sealing ring, a drill rod lower connector, a pressing ring II, a pressing cap II and the like. By arranging multiple groups of multiple sealing sections formed by alternately arranging the bidirectional reciprocating elastic sealing rings and the polytetrafluoroethylene sealing packings, at least two sealing sections are effectively ensured to be in contact with the inserted sealing cylinder to form stable sealing, and the problem of failure of the sealing sections caused by sliding of the inserted sealing head in the gas lift oil extraction process is solved; meanwhile, a step limiting structure is adopted between the insertion sealing head and the insertion sealing cylinder, so that preliminary positioning of the insertion sealing head is achieved, and the problems that parts are damaged or sealing positions are wrong due to overlarge acting force in the oil pipe insertion process are solved.

The invention relates to the technical field of automobile bodies, in particular to an automobile body in white and an automobile. The body-in-white comprises a top cover assembly, a front wall assembly, a rear wall assembly and a floor assembly, the front wall assembly comprises an air window upper cross beam with the cross section being a closed cross section, the rear wall assembly comprises a rear wall plate, a rear wall upper cross beam and two rear wall vertical beams, and the rear wall plate and the rear wall upper cross beam are fixedly connected and define the closed cross section; the rear wall plate and the rear wall vertical beam are fixedly connected and define a closed section. The top cover assembly comprises a beam frame assembly and a cover plate, the beam frame assembly comprises two top longitudinal beams, and the bottom face of the cover plate and the top longitudinal beams are fixedly connected and define a closed section. The front end of the top longitudinal beam is fixedly connected with the air window upper cross beam, and the rear end of the top longitudinal beam is fixedly connected with the rear wall upper cross beam and one corresponding rear wall vertical beam; the floor assembly comprises a floor mask and two bottom plate frameworks, the floor mask and the two bottom plate frameworks are partially overlapped and jointly define two floor closed sections, and the rear wall vertical beams correspond to the floor closed sections one to one and are fixedly connected with the floor closed sections.

This invention relates to the field of wheel product processing technology, and provides a wheel product weld grinding device and method. The device includes a frame and a sliding mechanism, wherein two sets of sliding mechanisms are respectively vertically and horizontally arranged on the frame. It also includes: a fixing mechanism for clamping the wheel rim, the fixing mechanism being mounted on the horizontally arranged sliding mechanism; a detection mechanism and a grinding mechanism located on the vertically arranged sliding mechanism, the detection mechanism being used to collect coordinate information of the base material next to the weld and a preset origin and generate a height array; and a central control unit, wherein the fixing mechanism, grinding mechanism, sliding mechanism, and detection mechanism are all electrically connected to the central control unit, the central control unit being used to receive detection data and output control commands. This invention solves the problems of low efficiency, poor accuracy, and insufficient consistency in traditional manual grinding.

The application relates to the technical field of robot motion control, and discloses a real-time cooperative control method and system for robot parkour motion, wherein the method comprises the following steps: acquiring a trunk angular velocity and a joint angular velocity in an air flight stage, calculating an angular momentum residual error vector and inputting the vector into a causal convolution time series prediction network to generate a landing posture deviation estimation vector; calculating a double-leg asymmetric impact force pre-distribution vector based on the vector; pre-calculating a joint impact wave propagation prediction parameter table; generating a double-leg differential cascading buffer pre-scheduling scheme by a dynamic programming algorithm and preloading the scheme to joint impedance controllers; and performing online correction on upstream joint parameters according to real-time torque feedback after landing.

The invention discloses a waste liquid and waste treatment carrying mechanical arm trolley for a chemical laboratory. The waste liquid and waste treatment carrying mechanical arm trolley comprises a frame assembly, a waste liquid treatment assembly, a waste treatment assembly, an intelligent monitoring assembly and a mechanical arm assembly. The waste liquid treatment assembly comprises a waste liquid collection barrel, a waste gas purification device, an anti-static funnel and a one-way check valve and is used for collecting chemical waste liquid in a classified manner and treating waste gas; the waste treatment assembly comprises a crushing mechanism and a waste collecting cavity and is used for crushing and storing chemical solid waste. The intelligent monitoring assembly comprises a central controller, a wireless liquid level alarm device and a weighing sensor and is used for monitoring the running state of equipment in real time and performing linkage control; the mechanical arm assembly comprises a mechanical arm body and a positioning sensor and is used for executing grabbing, transferring and throwing actions of the waste liquid barrel and the waste materials. Integrated automatic operation of chemical laboratory waste liquid and waste treatment and carrying is achieved, the treatment efficiency and safety are improved, and the requirement for standardized management of hazardous waste is met.

The utility model discloses an energy-saving chip rolling and discharging device which is characterized in that the energy-saving chip rolling and discharging device belongs to the field of machine tool accessories and comprises a chip discharging mechanism, a connecting mechanism is installed at the inner end of the chip discharging mechanism, an anti-blocking mechanism is installed at the inner end of the connecting mechanism, and the anti-blocking mechanism comprises a controller. The upper end of the connecting mechanism is fixedly connected with a motor II; by arranging the support and the multiple anti-blocking heads, position movement can be carried out, roll chips wound around the outer portion of the chain belt conveying assembly are scraped and cleared away, the situation that the chip removal system is shut down due to blocking is effectively prevented, and the support and the reinforcing frame are of a structure capable of being conveniently disassembled; an operator can quickly clean and replace parts on the premise of small-range shutdown, system no-load operation caused by long-time standby is reduced, overload operation of a chip removal system driving assembly caused by blockage is avoided, energy consumption is remarkably increased, and the service life of the chip removal system is prolonged. The running stability of the energy-saving chip rolling and discharging device is improved, and the energy-saving effect of the device is improved.

This utility model relates to the technical field of motorcycle engines, and in particular to a balance shaft structure for a motorcycle engine, which extends the service life of the gear structure and facilitates disassembly and assembly; it includes a shaft body, gear assemblies, connecting parts, and balance parts. The gear assemblies are located on the left and right sides of the shaft body, the connecting parts are installed on the left and right sides to fix the gear assembly, and the balance parts are evenly distributed on the shaft body.

This invention relates to a collaborative control method, apparatus, and equipment for a dual-track loading and feeding system, belonging to the field of railway loading technology. In this method, apparatus, and equipment, when the target car reaches a switching threshold during loading, it switches to the replenishment stage. By setting replenishment priority determination rules, the replenishment sequence of the two tracks is clearly defined, avoiding the problem of insufficient or accumulated material in the buffer bin caused by simultaneous replenishment, resolving the conflict problem of dual-track operations, and improving loading efficiency and accuracy. Furthermore, during the replenishment stage, a fuzzy PID fusion collaborative adjustment algorithm is used to adjust the parameters of multiple devices in a coordinated manner, stabilizing the material level in the buffer bin within the ideal range of 30%-50%. This ensures that coal flows directly into the chute with stable flow fluctuations, eliminating the need for secondary leveling, stabilizing the replenishment conditions, and significantly improving loading accuracy. Simultaneously, it avoids equipment overload caused by material accumulation and blockage, reduces the frequency of air cannon activation, and lowers equipment wear and energy consumption.

The application discloses a charging power adjusting method and device and a storage medium, and relates to the technical field of charging, and comprises the following steps: when it is detected that a charger is connected with a device to be charged, setting the output power of the charger as a preset power; monitoring the connection state of the charging connection; in the case that a power-off and power-on action is monitored, determining a time interval of automatic power supply recovery; if the time interval is less than a preset time length, reducing the output power, and jumping to the step of monitoring the connection state of the charging connection, so that the problem that charging fails due to the mismatch between the power demands of the charger and the device to be charged in the prior art is solved, and the flexibility and convenience of the charger are increased.

The utility model provides a special supporting jig frame for assembling a steel corridor, which comprises a bottom frame and a supporting column which is arranged on the bottom frame and is formed by superposing at least two supporting units which are detachably connected along the vertical direction, the rectangular supporting units are fixedly connected to the tops of the supporting columns, the left end faces and the right end faces of the inner sides of the rectangular supporting units are attached to a podium building roof steel frame, the upper end faces and the lower end faces of the rectangular supporting units do not make contact with the podium building roof steel frame, and the inclined supporting assemblies are obliquely and detachably connected between the supporting columns and the bottom frame. The transverse rod assemblies are transversely connected with the adjacent stand columns and form a multi-layer rectangular frame structure, the inclined rod assemblies are obliquely connected between the adjacent stand columns, and the connecting assemblies are arranged on the stand columns and used for achieving detachable connection between the upper stand column and the lower stand column, detachable connection between the transverse rod assemblies and detachable connection between the inclined rod assemblies and the stand columns. And the repeated utilization rate is high, and the safety and stability of the steel corridor in the splicing construction process can be ensured.

The invention discloses a power generation device capable of adjusting the windward area of fan blades. The power generation device comprises a supporting mechanism, an impeller power generation mechanism, a fan blade windward direction changing mechanism and an intelligent control system. According to the power generation device, the fan blade windward turning mechanism is arranged on the inner side of the front section of the fan blade, on one hand, the diameter of the fan blade can be infinitely large, on the other hand, the manufacturing difficulty of the fan blade turning track is reduced, and transportation and installation are facilitated; the fan blade windward turning rails can rotate relatively and are provided with telescopic components capable of enabling the fan blade windward turning rails to move up and down, so that the directions of the fan blades are changed, the windward area is changed, the generating capacity of the whole device is reduced, on one hand, damage caused by overload of the generator is prevented, and on the other hand, damage to the whole device due to large windward stress of the fan blades is avoided. The stability is improved; in addition, an existing large-size driving gear structure is changed through a power generation rotating shaft and a multi-stage gear, the machining process and installation and transportation difficulty of the whole device are greatly reduced, and the requirement that the fan blades can be infinitely large is further met.

The utility model relates to the field of disc dryers, and discloses a rake arm structure of a disc dryer. The rake arm structure comprises a rake rod, rake blades and a pressing wheel, one end of the rake rod is used for being fixedly connected with a main shaft of the disc type drying machine, the rake blades are fixedly arranged on the rake rod and used for stirring materials on a drying disc of the disc type drying machine, and the pressing wheel is fixedly connected with the rake rod and used for rolling the materials on the drying disc. The rake rod is fixedly connected with a main shaft of the disc dryer, so that the rake rod can rotate along with the main shaft; the harrow blades arranged on the harrow rods can stir materials on the drying disc, so that the materials are in full contact with the drying disc, and the drying efficiency of the materials is improved; the pressing wheel connected with the rake rod can grind the high-water-content materials on the drying disc, so that the sizes of the materials are reduced, the high-water-content materials are dried, the situation that the high-water-content materials are stacked on the rake blades to cause overload operation of the main shaft can be avoided, the materials can make full contact with the drying disc, and the material drying efficiency is improved.

The invention discloses efficient waste gas purification environment-friendly equipment which comprises a filtering tank body, a tank cover, a three-stage filter element, a gas inlet pipe, a gas outlet pipe, a sucking pump, a partition plate, a gas flow uniform distribution plate, a pressure difference monitoring device and a sewage draining exit. Arranging a glass fiber filter element, a modified activated carbon filter element and a composite molecular sieve filter element in sequence to form a gradient purification process; air flow uniform distribution plates are arranged at the outlet of the air inlet pipe and the inlets of the channels and are matched with staggered through holes and pipe bodies, so that air flow distribution is optimized; the filter element is independently disassembled and assembled through threaded connection, and the pressure difference monitoring device monitors the state of the filter element in real time; the tank cover and the tank body are sealed through flanges, and a drain outlet is formed in the bottom of the tank cover. The device realizes synchronous and efficient removal of multiple pollutants, is uniform in air flow, convenient to maintain and reliable in sealing, can avoid secondary pollution, and is adaptive to various waste gas purification requirements.

The utility model discloses a strain fermentation tank based on waste heat phase change energy storage, which comprises a tank body, a stirring system and a jacket temperature control system, a jacket is arranged on the outer wall of the tank body, a phase change material layer is filled between the jacket and the outer wall of the tank body, and the melting point of the phase change material is minus DEG C; a cooling water inlet of the jacket is positioned at the bottom of the tank body, a cooling water outlet is positioned at the top of the tank body, and a phase change material layer (with the melting point of 28-32 DEG C) filled between the jacket and the outer wall of the tank body forms a thermal buffer zone near the optimum growth temperature of strains by utilizing the phase change energy storage characteristic. When hyphae metabolize to produce heat, the phase change material preferentially absorbs latent heat to delay temperature rise; after the cooling system is started, heat stored in the cooling system is slowly released, and sudden temperature drop is avoided. Compared with the periodical fluctuation of + / -2 DEG C of a traditional jacket, the structure can control the temperature fluctuation to be + / -0.5 DEG C, thermal shock is reduced through a smooth temperature curve, and the enzyme activity of hyphae is kept stable.

This utility model discloses an ultra-thin, high-toughness mobile phone speaker cover, belonging to the field of mobile phone speakers. It includes a cover assembly, which includes a cover body. Several clips are fixedly connected to the side surface of the cover body. The cover body has reinforcing ribs inside. Connecting blocks are fixedly connected to both sides of the cover body. Two connecting holes are opened on one side of the cover body. A protective sheet is installed at the lower end of the cover body. The cover assembly designed in this utility model can not only significantly enhance the connection strength and stability between the mobile phone speaker cover and the speaker, but also significantly enhance its tensile strength and protective effect, thereby extending the service life of the mobile phone speaker cover.

The specification provides an operation resource allocation method, device, equipment, medium and product, wherein the method comprises: periodically acquiring a system historical request quantity set in a set historical period and a historical service feature set of service requests received in the historical period; the end of the historical period is the current time, the system historical request quantity set comprises a plurality of system request quantity values collected at a plurality of sampling time points in the historical period; calling a pre-trained request quantity prediction model to process the system historical request quantity set and the historical service feature set to obtain a system future request quantity prediction result; determining a future request quantity of each service processing module according to the system future request quantity prediction result, and determining a target service processing module needing operation resource adjustment and a resource allocation strategy for adjusting the processing capacity of the target service processing module according to the future request quantity of each service processing module.

The utility model relates to an acid discharge metering system. The acid discharge metering system comprises an acid discharge pipe arranged between an acid storage tank and an acid vehicle; the flow meter is mounted on the acid discharging pipe; the electric switch valve is mounted on the acid discharge pipe and is positioned at the downstream of the flow meter; the electric control valve is mounted on the acid discharge pipe and is positioned at the downstream of the electric switch valve; the flow meter, the electric switch valve and the electric adjusting valve are all electrically connected with a controller. The automatic acid discharge metering system composed of the acid storage tank, the acid discharge pipe, the flow meter, the electric switch valve, the electric control valve and the controller is used for replacing a manual acid discharge metering mode, the electric switch valve and the electric control valve form a coarse adjustment and fine adjustment control mode, and accurate control over the acid discharge amount is ensured; the control precision and stability of the acid discharge metering system are improved through the cooperative working mode, so that the acid discharge error is reduced, and overload or air loss of an acid vehicle is avoided.

The utility model discloses crushing equipment for waste paperboard processing, and belongs to the technical field of waste treatment and renewable resource equipment manufacturing. The device comprises a conveying mechanism, the conveying mechanism comprises a support, a supporting plate and a smashing mechanism are arranged on the support, a collecting box comprises an outer box, sliding grooves are formed in the two ends of the outer side of the outer box, and the outer box is fixedly installed on the left side of the smashing mechanism; a pressing plate is arranged at the bottom of the telescopic rod, a sliding block is arranged on the left side below the fixing block, and the other end of the sliding block is matched with the sliding groove. Through the structural design of the pressing assembly and the collecting box, the collecting efficiency after waste paperboards are smashed is improved, the pressing assembly adopts the telescopic plate and the telescopic rod to drive the pressing plate, pre-pressing can be conducted before the waste paperboards enter the smashing mechanism, blocking caused by fluffy materials is reduced, efficient cutting of the smashing cutter shaft is guaranteed, and the waste paperboards are prevented from entering the smashing mechanism. The collecting box is of an inner-outer box nested structure.

The invention discloses a distributed coordination control method, system, equipment and medium for a direct current grid-connected converter of a distributed photovoltaic system, and relates to the technical field of new energy power generation grid connection, the direct current grid-connected converter adopts a two-stage direct current conversion structure, the first stage comprises a plurality of direct current-direct current converters, and the second stage comprises a plurality of direct current-direct current converters; the second stage comprises a direct current-direct current converter, and each direct current grid-connected converter is provided with a coordination controller; communication connection is established among the coordination controllers, and real-time state information of adjacent direct-current grid-connected converters is interacted through the communication connection; and generating an output power control instruction of each DC-DC converter by using a distributed coordination control algorithm based on the interacted real-time state information and local power generation state information. According to the distributed adjustment method for the photovoltaic two-stage direct-current grid-connected current converter, flexible adjustment of the output power of the photovoltaic direct-current grid-connected current converter can be achieved without ultra-short-term power generation power prediction.

The method for calculating the available capacity of a transformer substation based on SARIMA and simultaneity rate includes the following steps: acquisition and preprocessing of three-phase active power data of the substation; establishment of a SARIMA substation load power prediction model; establishment of a dynamic simultaneity rate database for the substation; load prediction for a given month, and calculation of the available capacity of the substation for that month by selecting the largest simultaneity rate prediction from the dynamic simultaneity rate database. This invention establishes a dynamic simultaneity rate database for the substation to replace the fixed constant configuration coefficient in existing traditional available capacity calculation methods, which can reasonably adjust the configuration coefficient and improve calculation accuracy. Furthermore, by using a SARIMA model for substation power prediction to predict future load peaks in the substation, and using the predicted load peak value for the corresponding year as the data for the available transformer capacity, it effectively avoids the situation of transformer overload or underload caused by directly using historical data as available capacity data in existing algorithms, thereby improving the economy and security of the power system.

The utility model discloses a kind of mine scraper conveyor chain break monitoring devices, the monitoring device includes proximity switch, current transformer and controller;The signal output end of the proximity switch is connected with the output end of current transformer and the signal input end of controller;The proximity switch is installed in the chain scraper both sides of head, for monitoring scraper conveyor chain;The current transformer monitors the input current of the motor of scraper conveyor.The monitoring device of the utility model makes judgment after the occurrence of chain break condition, and controller makes judgment through the signal monitored by proximity switch and current transformer, controls head, tail motor to stop quickly, effectively avoids overload operation after scraper conveyor failure, stops in time to ensure equipment safety to avoid larger range failure, improve coal mining efficiency, reduce enterprise production cost.

The invention relates to the technical field of public safety monitoring, and discloses a remote state monitoring method and system for an LED emergency indicator, and the method comprises the steps: obtaining the historical operation data and environment parameters of the indicator, and carrying out the data cleaning, and obtaining a standardized historical performance data set; calculating an aging index and predicting a fault probability to obtain an equipment risk score; fusing the equipment risk score with the real-time environment change data, and obtaining a dynamic risk level through weighted calculation; carrying out risk level classification based on the dynamic risk level and allocating a reporting frequency interval to form a preliminary frequency allocation scheme; performing communication load simulation on the scheme, optimizing resource allocation by adjusting the frequency of the low-risk equipment, and generating an optimized frequency allocation scheme; and finally, issuing a configuration instruction, confirming an execution state and generating a final reporting mechanism. According to the method, accurate and dynamic risk assessment and resource adaptive scheduling of the state of the emergency indication board can be realized.