39results about How to "Efficient and safe operation" patented technology

The invention relates to a four-wheel independently driven electric vehicle torque distribution control method and a four-wheel independently driven electric vehicle torque distribution control system. The method comprises the following steps of (1) acquiring a driver operation action signal and vehicle driving parameters in real time, and after pre-processing the acquired data, storing the data; (2) according to the data acquired in the step (1), identifying the current driving intention of a driver; (3) according to the driving intention identifying result, adopting a corresponding control policy to control, and according to the control policy, sending a torque control order to each driving motor. The system comprises a data acquiring module, a driving intention identifying module and a torque distribution control module which are sequentially connected. Compared with the prior art, torque can be reasonably distributed to four wheels according to the driving intentions of the driver, such as ordinary acceleration, fast acceleration and turning driving, the energy utilization of the finished vehicle is improved, meanwhile, the driving stability of the vehicle under a limited condition can also be improved, and the advantage of independent driving is fully played.

The invention discloses a distributed container cluster mirror image management master node, slave nodes, a system and a method, wherein the main node comprises a mirror image database which is a distributed database and is used for storing node information of all nodes in the system; the request input module is used for receiving request content including a request target and command execution content; mirror image management module, the verification module is used for communicating the password and verifying whether the request content acquired by the request record input module is legal; ifit is judged that a request target in the request content is a specified single slave node or grouped slave nodes, sending a communication password and command execution content including a pulling operation, an updating operation, a deleting operation and a cleaning operation to IP addresses corresponding to the slave nodes; and receiving the state feedback content sent by the slave node. According to the invention, the flattening management of the container cluster mirror image is realized, the management efficiency of the cluster container mirror image in a distributed system is improved,and the high reliability and safety of the whole cluster are improved.

The invention relates to a virtual coupling multi-train cooperative controlling method and system. The virtual coupling multi-train cooperative controlling method includes the steps that the acceleration of an adjacent train of a controlled train, the speed difference value between the controlled train and the adjacent train of the controlled train and the redundancy distance between the controlled train and the adjacent train of the controlled train are obtained; the acceleration of the controlled train is determined according to the acceleration of the adjacent train of the controlled train,the speed difference value between the adjacent train of the controlled train and the controlled train, and the redundancy distance between the controlled train and the adjacent train of the controlled train; the speed of the controlled train is adjusted according to the determined acceleration of the controlled train. According to the virtual coupling multi-train cooperative controlling method and system, each train is driven close to the closest front train, and the stable and coordinated operation of a train group is realized, so that the purpose of safety and high efficiency is achieved.

The invention provides a fusion method and a device for fault diagnosis results, wherein, the method comprises the following steps of: acquiring a plurality of fault diagnosis results obtained by a plurality of diagnosis methods; wherein each diagnosis method corresponds to a fault diagnosis result; the corresponding fault diagnosis results of each diagnosis method are transformed into individualmatching degree according to the individual matching degree matrix. Individual matching degree represents the degree of trust in the fault diagnosis results given by each diagnostic method. Accordingto the transformed individual matching degree, the confidence level of multi-fusion results of multi-fault diagnosis results is determined by pre-established confidence rule database. The confidence rule base is established according to several fault fusion samples in advance, and the confidence level represents the trust degree of each fusion result. According to the confidence of the fusion results, the final fault diagnosis results are determined. The technical scheme improves the accuracy of the fault diagnosis result and ensures the efficient and safe operation of the equipment.

The invention relates to a transfer carrying and nursing robot. The robot is characterized by comprising a handrail, a lifting seat mechanism, a foot treadle mechanism, a turnover prevention mechanism, a robot body, guide trundles, a body support connecting rod, a body rotary connecting rod, a chest relying part, rigid support parts and encircling parts; the rear part of the robot body is internally provided with the body support connecting rod, the upper portion of the body support connecting rod is hinged to one end of the body rotary connecting rod, the body rotary connecting rod extends out of the exterior of the robot body, the other end of the body rotary connecting rod is hinged to the back face of the chest relying part, and the chest relying part, the body support connecting rod and the body rotary connecting rod jointly constitute a three-connecting-rod structure; the upper ends of the left and right sides of the chest relying part are provided with the rigid support parts symmetrically; the upper portion of the back face of the chest relying part is provided with the handrail; the middle lower parts of the left and right sides of the chest relying part are provided with the encircling parts symmetrically, and the encircling parts are in symmetric working states, and have closing and opening states in the working process.

A circulating fluidized dry technology using electric bag cleaner for desulfurizing and dusting fume features that the great-diameter dust in the fume discharged from desulfurizing reaction tower is collected by the electrostatic dusting area of electric bag cleaner and then returned back to said desulfurizing reaction tower and the small-diameter dust is collected by the bag dusting area of electric bag cleaner and then returned back to the desulfurizing reaction tower for the most of it or exhausted for its rest. Said electrostatic and bag dusting areas are isolated by the metallic lattice. Its advantage is high desulfurizing effect under low Ca / S ratio.

The invention provides a whole-process real-time electronic scale type intelligent supervision management system for an oil tank truck. The system comprises a vehicle-mounted terminal and a monitoringplatform; the vehicle-mounted terminal is connected with the monitoring platform through a wireless data network; the vehicle-mounted terminal is connected with a monitoring unit on the oil tank truck through a data line; the monitoring unit monitors the liquid level, the pressure, valve switching, the position, the surrounding environment and other data of the oil tank truck; and the monitoringplatform comprises a streaming media service layer, a protocol analysis layer, a data processing layer and a platform service layer, and can be connected with multiple kinds of clients through application interfaces (API) to form an application service layer for interaction between the clients and the monitoring platform, so that interconnection, intercommunication, mutual control and other various applications can be realized. According to the system, remote real-time monitoring and analysis of the liquid level, the pressure, the leakage, the position, the valve switching, a vehicle track, the surrounding environment and other states of the oil tank truck can be realized, thereby providing information support for dispatching delivery, equipment management and decision-making operation inthe hazardous chemical industry.

The invention discloses a model-free current control method for a permanent magnet synchronous motor (PMSM) applied to a permanent magnet synchronous motor control system comprising an inverter, a current sensor, a position sensor and a DC power supply. The model-free current control method is characterized in that a model-free current control comprises a quadrature-axis model-free current regulator, a direct-axis model-free current regulator, a coordinate transformation module and a space vector pulse width modulation module. The model-free current control method for permanent magnet synchronous motor can improve the dynamic and static performance of an electric vehicle PMSM drive system; and the PMSM drive system has high robustness, so that efficient and safe operation of the electric vehicle PMSM drive system is achieved.

The invention discloses a dehumidifier and relates to a dehumidifier capable of collecting and recycling dissipated heat. The dehumidifier at least comprises a shell and a dehumidifying device, the shell is provided with an air inlet and an air outlet, and the dehumidifying device is arranged in the shell and comprises a water tank, a fan, an energy recovery device, an evaporator, a condenser, a compressor and a capillary tube. Air heated by the condenser is delivered by the fan to the energy recovery device and cooled by exchanging energy with external damp air prior to being exhausted through an air outlet, the external damp air is preheated by energy exchange in the energy recovery device and condensed by the evaporator to separate moisture out prior to being delivered to the condenser, and accordingly an energy recycling system is formed. The dehumidifier is simple and reasonable in structural design and enables the damp air to be preheated, condensate separation efficiency of the evaporator of the dehumidifier can be greatly improved, and accordingly energy consumption is reduced, effectiveness in dehumidification is improved to realize efficient dehumidification, and the problem of defrosting of the dehumidifier at a low temperature is solved.

The invention provides an optimal deployment method of an unmanned aerial vehicle air base station in rapid recovery of railway emergency communication, and belongs to the field of railway communication engineering. The method comprises the following steps: firstly, constructing a position optimization problem of joint ground equipment / facility association and an unmanned aerial vehicle air base station in a two-dimensional space, wherein the target function is obtained by maximizing the total throughput of an air-ground link between the unmanned aerial vehicle and a user, and the constraint conditions are as follows: the throughput of the air-ground link between the unmanned aerial vehicle and the user is not less than a throughput threshold, and the position of the unmanned aerial vehicle is constrained in a fault area; decomposing the problem into two independent sub-problems, namely a user and unmanned aerial vehicle associated sub-problem and an unmanned aerial vehicle position optimization sub-problem; and optimizing and solving the two self-problems by utilizing an iterative algorithm to obtain a final unmanned aerial vehicle deployment position. According to the method, theoptimization position solution of the unmanned aerial vehicle is accelerated, and the emergency communication service capability of the unmanned aerial vehicle can be maximized on the premise that the communication requirements of ground communication equipment are met.

The present invention relates to an auxiliary control device for a compressor comprising: an inverter pack control unit (23) for stopping the operation of a compressor, selecting an operational condition such as a manual mode and an automatic mode or the like, and inputting a target input value; an operation control unit (12) for automatically detecting a load operation state or a no-load operation state of the compressor on the basis of a signal for an inputted current state when the compressor (8) is operated, preventing a high-speed idling operation when in the no-load operation state, performing a standby function for stopping a motor when the no-load operation continues for a predetermined time and a rapid re-operation prevention function, and separating a power source for driving the motor of the compressor and an operational power source from each other; and a pressure control unit (22) for comparing the target pressure value predetermined by a user with the pressure value which is detected from a receiver tank and outputted through a pressure sensor, and outputting the current according to a deviation value to the inverter, wherein the inverter (5) is configured to control the motor of the compressor in connection with a change in the current value outputted from the pressure control unit (22) according to the deviation of an internal pressure value of a receiver tank (20) for a target pressure value of the predetermined receiver tank (20).

The invention provides a power distribution network fault visualization simulation and backtracking system. The system comprises: a power distribution network model construction module used for visually constructing a power distribution network model corresponding to a power distribution network; an information import processing module connected with the power distribution network model construction module and used for visually importing the fault sequence and the wave recording file of the power distribution network; and a fault backtracking module connected with the power distribution network model construction module and the information import processing module, and configured to determine the fault occurrence time and the electrical equipment with faults in the power distribution network according to the fault sequence and the wave recording file, perform feeder automation processing, and dynamically reproduce the whole process of feeder automation of the power distribution networkat the fault occurrence time through the power distribution network model. The present invention further provides a power distribution network fault visualization simulation and backtracking method.The power distribution network fault visualization simulation and backtracking system and method can simulate and backtrack the faults of the power distribution network and can perform visual display.The effect is reliable, and the safe operation of the power distribution network can be ensured.

The invention discloses a building board mounting robot, which comprises a base, mechanical arms and mounting tail ends, wherein the two mechanical arms are mounted on the base, and the tail end of each mechanical arm is connected to the corresponding mounting tail end; the two mounting tail ends can independently clamp a workpiece or the two mounting tail ends jointly clamp one workpiece; each mounting tail end comprises a first mounting part, a second swing hydraulic cylinder, a second mounting part, a third swing hydraulic cylinder, a third mounting part, a fourth swing hydraulic cylinder, a clamping frame and suction cups, wherein the first mounting part is fixed to the tail end of the mechanical arm, the clamping frame is mounted on an output shaft of the fourth swing hydraulic cylinder, and suction cups are mounted at the two ends of the clamping frame. All actions are achieved through hydraulic driving, so that the bearing capacity of the mechanical arm is improved, and the mechanical arm can be suitable for plate mounting operation in various environments, and has the advantages of being good in safety performance, high in work efficiency, large in bearing capacity, low in labor intensity and the like, is particularly suitable for mounting of indoor large-size and heavy partition plates, and achieves mechanization of plate mounting.

The invention discloses a new energy station internal frequency modulation instruction decomposition model construction method. According to the method, the output scene of the new energy field station is predicted, the output scene is reduced through a fast forward reduction method, a new energy field station participation energy and frequency modulation market strategy optimization model is constructed based on the reduced output scene, and the optimal declaration capacity of electric energy and frequency modulation of the new energy field station is determined. Meanwhile, a frequency modulation instruction decomposition model in the new energy field station is established. The method effectively promotes the new energy station to reduce the output fluctuation, actively participates in the frequency modulation market, reduces the operation cost of the power grid, and improves the operation flexibility of the power grid.

The invention discloses an unmanned aerial vehicle-based multipurpose microbial crack repairing device which comprises an unmanned aerial vehicle main body, a mounting mechanism which is detachably connected to the unmanned aerial vehicle main body and is used for filling a repairing substance, and a spraying mechanism which is detachably connected to the mounting mechanism and is used for spraying out the repairing substance, the stone cultural relic crack repairing device is reliable in structure and good in use performance, cracks of stone cultural relics can be effectively repaired through the stone cultural relic crack repairing device, a liquid repairing mode of mixing bacterial liquid and reaction liquid or a tiny solid particle cementation repairing mode of microbial capsules can be adopted according to operation requirements, and the repairing effect is good. And the unmanned aerial vehicle platform is used for carrying the box body filled with the microbial liquid medicine or the microbial capsules, and the mixed liquid or the microbial capsules are injected into the cracks of the stone cultural relics through the corresponding injection mechanisms, so that the defects that the working terrain is limited, the efficiency is low and the risk is high can be effectively overcome, and the purposes of efficient and safe working and rapid and effective reinforcement are achieved.

The invention discloses a stacking type safety bearing frame for building construction in the technical field of building construction. The stacking type safety bearing frame comprises an integrated bearing frame and a fixed connecting assembly, wherein the integrated bearing frame comprises peripheral stand columns, a folding pedal and extension plates, a shaping telescopic assembly is rotatably connected between the peripheral stand columns, the shaping telescopic assembly comprises a middle protective cylinder, the two ends of the middle protection cylinder are sleeved with tensioning sleeves, a shaping threaded rod is in threaded connection between the tensioning sleeves, the middle protection cylinder drives the shaping threaded rod to rotate through a gear set arranged in the middle, the folding pedal is rotationally connected between the peripheral stand columns, the extension plates are rotationally connected to the two side walls of the peripheral stand columns, folding assemblies are arranged between the extension plates and the peripheral stand columns, and fixing frames are arranged in the middles of the peripheral stand columns. According to the stacking type safety bearing frame, the installation time is greatly shortened, rapid and safe construction is facilitated, the extension plates and the folding pedal cannot move or fall off, and the safety is improved.

The invention relates to an integrated denture processing system and method. The system comprises a wax remover, a separating agent filling machine, a powder-liquid mixer, an acrylic denture injectionmachine and a steam polymerization machine. After preparation and embedding of flasks, wax removal operation, separating agent operation, powder-liquid mixing, injection molding preliminary polymerization operation, high-pressure polymerization operation and box opening operation, the system is used for wax removal, separating agent application, slurry injection and high-temperature and high-pressure polymerization of dentures embedded in multiple flasks in batches; wax removal, separation, glue injection and polymerization are integrated, operation is intelligent, multiple flasks can be treated simultaneously, and do not affect each other during work, and standardized batch processing is performed. The yield and quality are effectively increased, labor and material costs are reduced, working time is saved, and production efficiency is improved.

The invention discloses a rock mining device and method for crossing broken zone surrounding rock, and belongs to the field of mining. According to the device, a steel box culvert is arranged on a flat car; power of the flat car is provided by an electric locomotive connected with the flat car, a slag loading tank car is arranged at the other end of the electric locomotive, and the travel of the flat car, the electric locomotive and the slag loading tank car is provided by a track laid on the ground; and drilling equipment and an automatic slag discharging device are arranged in the steel boxculvert, and the automatic slag discharging device is used for conveying slag of the drilling equipment into the slag loading tank car from the steel box culvert. The problem that workers are harmed due to the fact that the wall caving phenomenon is prone to occurring during existing roadway tunneling is solved, the mining method is free of the processes of drilling and grouting, the use amount ofsteel bars and concrete is greatly reduced, tunneling and permanent supporting can be carried out at the same time, and the efficiency is high.

The present invention provides a formalized modeling and security verification method of a block chain PBFT consensus algorithm based on the Event-B method. According to the operation mechanism of the PBFT consensus algorithm on the block chain, it is realized by the Event-B modeling platform Rodin The PBFT consensus algorithm on the blockchain formally verifies the functional security of the PBFT consensus algorithm, including determining the core elements of the model, converting them into constants and variables of the Event-B model according to the structure and properties of different elements, and defining the constants Corresponding axioms, defining corresponding invariants for variables to ensure the establishment of structures and properties; establishing an abstract model, mapping the algorithm execution process into specific events; performing hierarchical refinement by module, adding invariants to express the security properties of the blockchain , generating a proof obligation to verify the functional safety of the algorithm. The present invention realizes the formal modeling of the block chain PBFT consensus algorithm based on model refinement technology, uses the formal method to verify the functional safety of the algorithm, and supports the refined verification of different block chain consensus algorithms.

The invention provides an optimal deployment method of an unmanned aerial vehicle air base station in rapid recovery of railway emergency communication, and belongs to the field of railway communication engineering. The method comprises the following steps: firstly, constructing a position optimization problem of joint ground equipment / facility association and an unmanned aerial vehicle air base station in a two-dimensional space, wherein the target function is obtained by maximizing the total throughput of an air-ground link between the unmanned aerial vehicle and a user, and the constraint conditions are as follows: the throughput of the air-ground link between the unmanned aerial vehicle and the user is not less than a throughput threshold, and the position of the unmanned aerial vehicle is constrained in a fault area; decomposing the problem into two independent sub-problems, namely a user and unmanned aerial vehicle associated sub-problem and an unmanned aerial vehicle position optimization sub-problem; and optimizing and solving the two self-problems by utilizing an iterative algorithm to obtain a final unmanned aerial vehicle deployment position. According to the method, theoptimization position solution of the unmanned aerial vehicle is accelerated, and the emergency communication service capability of the unmanned aerial vehicle can be maximized on the premise that the communication requirements of ground communication equipment are met.

The invention discloses electrolysis equipment. The equipment includes a frame body, a main control system, an automatic preparation saturation sodium chloride device, and an electrolysis box; the frame body is a stainless steel frame body; the main control system is cooperatively disposed on the left side of the upper end of the frame body; a water inlet and a water outlet of the automatic preparation saturation sodium chloride device are respectively provided with a softened water inlet pipe and a sodium chloride water outlet pipe; and the electrolysis box is cooperatively disposed on the right side of the upper end of the frame body. The electrolysis equipment is simple in operation, is convenient to use, can quickly generate a certain concentration of sodium hypochlorite solution according to demands, achieves multiple filtration in a transportation process, can perform pre-electrolysis pretreatment operation, ensures the quality of electrolysis, can quickly and efficiently electrolyze a required solution, can separately discharge an electrolysis product, achieves real-time monitoring of pressure for conveying the solution and a liquid level of an anode end, allows detection data to be visually displayed to be convenient for personnel to understand an operation state of the equipment, and ensures efficient and safe operation of the electrolysis equipment.

The invention provides a self-power-supply-based carrier wave wireless dual mode communication tunnel illumination control system. The self-power-supply-based carrier wave wireless dual mode communication tunnel illumination control system includes lamps, terminal controllers, an integrated controller, a host computer and a water flow pipe TEG (Thermoelectric Generation) module, wherein the self-power-supply-based carrier wave wireless dual mode communication tunnel illumination control system has a plurality of lamps and terminal controllers; one terminal controller is arranged on each lamp;a switch for controlling the lamps feeds back the corresponding data to the integrated controller; the integrated controller feeds back the acquired data to the host computer by acquiring the vehicleflow data in the tunnel and the internal and external luminance of the entrance of the tunnel, and issues a command of the host computer to the terminal controllers, so as to complete setting of the working state of each lamp; and the water flow pipe TEG module is the power supply of the whole system. The self-power-supply-based carrier wave wireless dual mode communication tunnel illumination control system can realize real-time monitoring, control and management of lamps in the tunnel, can record and analyze the operating data of each equipment so as to guarantee efficient and accurate operation of the lamps in the tunnel and safe operation of the tunnel, and has preferable application prospect and market value.

The invention discloses a distributed container cluster image management master node, a slave node, a system and a method. The master node includes: a mirror database, which is a distributed database, and is used to store node information of all nodes in the system; a request input module, which is used to receive request content including request targets and command execution content; a mirror management module, which is used for communication passwords and Verify whether the request content obtained by the request record input module is legal, and judge whether the request target in the request content is a specified single slave node or a group of slave nodes, then send the communication password to the IP address corresponding to the slave node and include the pull operation, Command execution content of update operation, delete operation and cleanup operation; receive status feedback content sent by slave nodes. The invention realizes the flat management of the container cluster image, improves the management efficiency of the cluster container image in the distributed system, and improves the high reliability and security of the entire cluster.

The invention discloses goods fork equipment which comprises a rack, roll-over stands, a hydraulic cylinder and a telescopic goods fork; one ends of the roll-over stands are rotationally connected with and fixed to the rack; the hydraulic cylinder is fixedly arranged on the rack and is used for pushing the roll-over stands to carry out angle rotation; the goods fork is subjected to sliding fixingthrough sliding blocks in straight guide rails fixedly arranged on the rack; and the goods fork is arranged at the top of the roll-over stands. According to the goods fork equipment and the use methodof the goods fork equipment, a cabinet body assembling process in a switch equipment production line can operate continuously, equipment preparation work before assembly work is reduced, an operatordoes not need to evacuate from an operating zone or wait in cabinet body gesture conversion and order changing processes, the labor intensity of the operator is reduced, and the safety of the operating process is improved; and the assembling processes of the switch equipment production line can be configured in accordance with productive capacity and market demands flexibly, and the production efficiency is improved.

The invention discloses an in-tunnel dismantling method for thrust cylinders of a shield tunneling machine. The in-tunnel dismantling method comprises the steps that a thrust cylinder support is constructed; red and blue oil cylinders are driven to rise, so that the front ends of the thrust cylinder supports are arranged at the lower parts of the outer ends of every two thrust cylinders in one group; the outer ends of the thrust cylinders are fixed to the thrust cylinder support; a segment erector is driven to travel towards the outer side along a traveling beam, and the thrust cylinders are driven to move outwards in the axial direction; after the thrust cylinders are completely dragged out, a thrust cylinder fixing device is fixed again; the red and blue oil cylinders are recovered downwards, so that the thrust cylinders move downwards along with the thrust cylinder support; a swing mechanism, the thrust cylinder support and the thrust cylinders of the segment erector are driven to rotate around the traveling beam of the segment erector; and when the thrust cylinders on the thrust cylinder support rotate to the position below the traveling beam of the segment erector, the thrustcylinders are unloaded on a transportation trolley on a bottom rail. By means of the in-tunnel dismantling method, a set of thrust oil cylinders can be dismantled at a time at the same time, rapid, efficient and safe operation can be achieved, only supports for bearing and fixing the thrust cylinders need to be additionally arranged, and operation and implementation are easier.

The invention relates to an integrated denture processing system and a processing method thereof, including a dewaxing machine, a separating agent filling machine, a powder-liquid mixing machine, a glue tray pressure injection machine and a steam polymerization machine, after the preparation of the mold box, embedding, and dewaxing Operation, separation agent operation, powder-liquid mixing, injection molding preliminary polymerization operation, high-pressure polymerization operation and box opening operation, used for dewaxing, separating agent application, slurry injection and high temperature and high pressure of dentures embedded in multiple mold boxes in batches Polymerization, which integrates wax removal, separation, glue injection and polymerization, intelligent operation, can process multiple mold boxes at the same time, and does not affect each other during work, conducts standardized batch processing, effectively improves output and quality, and reduces labor and materials Cost, save working time and improve production efficiency.