111results about How to "Address shock" patented technology

The invention discloses a terminal access method and a terminal access device. The terminal access method comprises the following steps: on the basis of a bit value of a corresponding Access Class (AC) within an Enhanced Access Barring (EAB) parameter configured by a system, determining whether to allow the AC terminal to access; if the bit value of the corresponding AC within the EAB parameter is barred, then, on the basis of a barred time within the existing Access Class Barring (ACB) parameter, calculating a barred time for re-accessing the system and ending the process; and if the bit value of the corresponding AC within the EAB parameter is not barred, then, according to an existing system-broadcasted common ACB parameter, determining that access is allowed. According to the terminal access method and the terminal access device, the EAB and an existing ACB mechanism are combined for processing so as to solve the problem of possible impact on the system when the network is accessed concurrently by large numbers of delay-insensitive or low-priority services or terminals. Also, during the occurrence of an unexpected event, as the EAB applicable terminal is provided with appropriate control, the terminal is prevented from directly accessing the system without constraint, thereby shortening the delays and the duration of system congestion during the unexpected event.

The invention provides a network access system and a method. The system comprises a control panel node and a user panel node, wherein the control panel node is connected with UE via a wireless interface and is connected with a MME (Mobile Management Entity) via an S1 interface for processing control panel data; and the user panel node is connected with the UE via a wireless interface and is connected with a SGW (Service Gate Way) via an Ss interface for processing user panel data. Thus, the problems that frequent interaction happens to information between nodes when the user is switched among cells and a core network is impacted in the related technology can be solved, interaction of information between nodes is reduced, and impact on core network signaling is reduced.

An electronic device is provided. The electronic device includes a front cover forming a front surface, a rear cover forming a rear surface, a sidewall at least partially enclosing a space formed between the front cover and the rear cover and at least partially formed of a conductive member, a display disposed in the space and including a screen region exposed through the front cover, a non-conductive structure disposed in adjacent to the sidewall or in contact with the sidewall in the space and including a first surface facing the front cover and a second surface facing the rear cover, a first antenna pattern overlapping the non-conductive structure and fed with electricity, a second antenna pattern overlapping the non-conductive structure and disposed adjacent to the first antenna pattern to form electromagnetic-field coupling with the first antenna pattern, and an integrated circuit chip feeding electricity to the first antenna pattern.

The invention discloses a solar wireless electric vehicle charging station, which comprises a photovoltaic array device, a DC (direct-current) busbar device composed of a DC power distribution cabinet, a DC/DC converter, a high-frequency inverter and a wireless charging transmitting terminal, wherein the photovoltaic array device is connected with the DC/DC converter through the DC busbar device, the high-frequency inverter is connected with the DC/DC converter, and the wireless charging transmitting terminal is connected with the high-frequency inverter. Compared with the prior art, the solar wireless electric vehicle charging station has the advantages of achieving the purpose of charging an electric vehicle by a solar photovoltaic power generation system, avoiding the electric shock hazard and the electric energy consumption during charging operation of a plug by adopting a magnetically coupled resonance wireless charging technology, realizing an intelligentized charging technology as well as safety and convenience during charging of the electric vehicle, effectively reducing the capacity of a storage battery of the electric vehicle, lightening the self weight of the electric vehicle, reducing the manufacturing cost of the electric vehicle, improving the effective utilization rate of energy sources and promoting the development of the electric vehicle.

The invention relates to a flexible loading system of a friction and wear testing machine. The system is characterized in that: a loading oil cylinder is horizontally arranged, a piston rod passes through a body of the loading oil cylinder, a displacement sensor is arranged on one end of the piston rod, a load sensor is connected with the other end of the piston rod, a housing of the displacementsensor is fixed on a frame, and a measurement iron core is connected with the load sensor by passing through the piston rod; a friction pin is arranged on the load sensor, a friction disc and the friction pin are relatively arranged, and the friction disc is connected with a variable frequency motor through a driving shaft and a torque sensor; the loading oil cylinder is communicated with a hydraulic system through a servo valve, the displacement sensor and the load sensor are connected with a servo controller, and the servo controller is connected with the servo valve; and a guide rod is arranged in parallel with the load oil cylinder, and the load sensor is fixedly connected with a slide block of the guide rod. The system allows the labor intensity of operators to be reduced, the load value to be continuously variable, stepless loading of loads to be realized, impact problems of loading of original systems to be solved, and the loading stability to be substantially raised.

The invention relates to a precise control device for the acceleration/deceleration of a motor. The control device comprises an information input unit, a target speed judgment unit, a target speed determination unit, a pulse distribution unit and an information output unit, wherein the information input unit is used for inputting acceleration/deceleration control information, the target speed judgment unit is used for judging whether pulses given by a user can enable the motor to accelerate to a predetermined target speed according to a predetermined curve or not in advance, the target speed determination unit is used for determining the target speed according to a judgment result of the target speed judgment unit, the pulse distribution unit is used for carrying out pulse distribution according to the predetermined curve and the target speed determined by the target speed determination unit, and the information output unit is used for outputting the pulses distributed by the pulse distribution unit to the motor. The precise control device for the acceleration/deceleration of the motor has the advantages that the calculation amount is reduced, and the problem that partial curved acceleration/deceleration cannot be realized due to overlarge calculation amount of each cycle is solved; and complete corresponding curves can also be planned in the acceleration/deceleration being incapable of reaching the target speed, and then, the problem of impact caused when the highest speed cannot be reached in the prior art is solved.

The invention discloses a fault positioning protecting device and method based on a power distribution network smart terminal. The method includes: dividing a power distribution network into at least one minimum power distribution area, calculating the fault state differential value Ssum of each area, comparing Ssum of each area with the state preset value of the area, determining a differential protecting action through short-time delay if the comparison difference of the area satisfies the set condition, and tripping all distribution switches in the area after differential protection to realize fault isolation. The fault positioning protecting device and method based on the power distribution network smart terminal has the advantages that the power distribution area differential principle is used, the isolation time of power distribution network faults can be controlled within 100ms, the problems that the service lives of switches are shortened due to the fact that multiple times of on and off of the switches and users are impacted in traditional power distribution network fault isolation are solved, and the device is unaffected by the accessing of a distributed power supply.

A dual-frequency shore power source synchronous grid-connection and smooth power transfer method is disclosed. The method comprises the steps of performing synchronous grid-connection control and power transfer control through a controller; collecting three-phase voltage UAmp in shore power source side, voltage ULoad of a load circuit and voltage UGen in diesel generator output side; through analyzing and calculating, enabling the shore power source to be inverted into voltage that is accordant with the voltage in the shipboard side by adopting a VF mode; then adopting a droop control mode, performing secondary frequency modulation and voltage regulation control to regulate the voltage amplitude phase angle for realizing rapid synchronous grid-connection so as to realize parallel operation of the shore power source and the diesel generator; and realizing smooth power transfer of the shore power source and the diesel generator through the secondary frequency modulation and voltage regulation control. According to the dual-frequency shore power source synchronous grid-connection and smooth power transfer method, the smooth switch and power transfer of the shore power source and the diesel generator are realized; the load on the ship is powered in an uninterrupted manner in the switching process; and the control policy is high in applicability.

The invention provides a control method for starting an engine by using a clutch of a deep hybrid power automobile. The method comprises the steps that whether or not starting demands of the engine are met is judged by a starting demand judging module, if yes, the steps of oil filling of a first clutch, the dragging of an engine of the first clutch, oil spraying control of the engine, PI controlling and first clutch closing are sequentially conducted, and the starting of the engine is completed; during the oil filling process of the first clutch, starting process time tes of a current engine is judged, slipping work Q of a unit area of a current first clutch and the starting process time tes of the engine are judged in the steps of the dragging of the engine of the first clutch, the oil spraying control of the engine and the PI controlling, if judging results exceed limiting values, current steps are ceased, whether or not judging failing times are exceeded is judged, and judging stepsof the starting demands of the engine are executed again or a fault mode is entered according to judging results. The method is easy and achievable, and the smoothness of the starting process of theengine can be ensured to prevent the shaking of the automobile.

The invention discloses a terminal accessing method and a terminal access device. The terminal access method comprises the following steps: a system broadcasts or pre-sets a new Enhanced Access Barring (EAB) parameter; and according to the bit value of a corresponding Access Class (AC) within the configured EAB parameter or a new EAB parameter, an EAP applicable terminal determines whether to allow the AC terminal to access. According to the terminal accessing method and the terminal access device, the EAB is processed independently, and the new EAB parameter is integrated to solve the problem of possible impact on the system when the network is accessed concurrently by large numbers of delay-insensitive or low-priority services or terminals. Moreover, during the occurrence of an unexpected event, as the EAB applicable terminal is controlled appropriately, the terminal is prevented from directly accessing the system without constraint, thereby shortening the delays and the duration of system congestion during the unexpected event.

The invention belongs to the technical field of bamboo machining, and discloses a device for removing bamboo green on the surface of a bamboo tube. The device comprises green removing cutter assemblies, bamboo tube lifting floating mechanisms and a bamboo tube conveying mechanism; the plurality of green removing cutter assemblies are longitudinally arranged on a moving beam in a row; the pluralityof bamboo tube lifting floating mechanisms are longitudinally arranged on a rack in a row, each bamboo tube lifting floating mechanism corresponds to one green removing cutter assembly, and each bamboo tube lifting floating mechanism comprises a bamboo tube rotary clamping mechanism and a lifting driving device for driving; each bamboo tube rotary clamping mechanism comprises two ejecting parts,and the two ejecting parts are used for fixing the bamboo tube from the two ends of the bamboo tube in an ejecting and clamping mode in the opposite directions; the lifting driving devices drive the bamboo tube rotary clamping mechanisms to lift between a machining position used for completing the machining of green removing and a clamping position located below the machining position and used forcompleting clamping or releasing clamping of the bamboo tube; and the bamboo tube conveying mechanism is used for longitudinally conveying the bamboo tube. According to the device, the problem that the cutter assemblies impact the bamboo tube to be machined is effectively solved.

The invention discloses a pressure regulating system of a hydraulically driven air conditioner in a crane control room. The oil outlet of the hydraulic pump of the main engine is divided into two paths through a proportional valve, and one path is controlled by an electromagnetic system composed of a hydraulic pipeline, an overflow valve and a throttle valve. The valve is connected with the air conditioner motor, and the air conditioner motor drives the air conditioner compressor to run through the coupling, and the electromagnetic control valve is adjusted and controlled in real time by the air conditioner control unit according to the collected values ​​of the pressure sensor and temperature sensor; the other way is through the hydraulic pipeline, The swing buffer valve is connected with the swing motor. The control valve composed of overflow valve and throttle valve is connected with the control unit to protect the pressure of the air conditioner motor, automatically adjust the pressure, and realize the stable operation and normal protection and cut-off of the air conditioner system. The air conditioner motor is connected to the air conditioner compressor through a coupling, which drives the air conditioner compressor to run stably and realizes the cooling performance of the air conditioner.

The invention discloses an automatic classification device and a classification method for cells. The classification device comprises a main conveying line, at least two code scanning devices and transfer devices, wherein the main conveying line is used for conveying cells; the at least two code scanning devices are sequentially distributed at one side of the cell conveying line, and used for scanning identification codes on the end surfaces of the cells to determine the types of the cells; and the transfer devices are in one-to-one correspondence with the code scanning devices separately, located behind the code scanning devices, and used for moving out the cells corresponding to the code scanning devices in position from the main conveying line according to the identification results ofthe code scanning devices, or not acting. According to the scheme, the classification device is exquisite in design and simple in structure; sequential conveying for the cells is carried out through the conveying line; identification codes bound with cell grade information are identified by virtue of the plurality of code scanning devices, so that the grades of the cells can be automatically determined; and then the transfer devices matched with the code scanning devices separately are combined, and then the cells with various grades can be automatically transferred out of the main conveying line to realize classification. The classification device is high in automation degree, improved in grading efficiency and capable of adequately ensuring the grading accuracy.

The invention discloses an air cushion type double-mold slurry shield machine and a control method thereof. An air cushion bin of the air cushion type double-mold slurry shield machine is an annular cavity consisting of a front shield and a cutter head driving device; an air cushion communicating pipe is arranged in the air cushion bin; an upper port of the air cushion communicating pipe extends into a high-pressure air cavity, and a lower port of the air cushion communicating pipe extends into a slurry cavity; the upper port of the air cushion communicating pipe is connected with a drainage pipe leaded to the slurry bin; a hydraulic gate valve is arranged between the air cushion communicating pipe and the drainage pipe; and the hydraulic gate valve is connected with a control device at the external of the shield machine. The air cushion type double-mold slurry shield machine can realize a slurry bin pulp discharge tunneling mode and an air cushion bin pulp discharge tunneling mode, can precisely control the pressure of a support surface under the two modes to prevent the pressure fluctuation in the support surface, solves the impact problem to a slurry circulating system of the shield machine, and meanwhile, prevents the earth surface sedimentation.

The invention belongs to the field of ore processing, and particularly relates to an ore classification soil treatment device. The ore classification soil treatment device comprises a cleaning assembly, a scattering assembly and a classification assembly; the cleaning assembly comprises water outlet holes, sludge discharge holes, a cleaning assembly shell, a conveying assembly and a filter screen;a first support is arranged below the cleaning assembly shell; the cleaning assembly shell is obliquely arranged; the included angle between the central axis of the cleaning assembly shell and the horizontal plane is 10 degrees to 25 degrees; a water injection pipe is arranged at the upper end of the inner wall of the cleaning assembly shell; the water injection pipe is provided with a pluralityof groups of water outlet holes; the plurality of groups of water outlet holes are distributed at equal intervals in the central axis direction of the cleaning assembly shell; one end of the water injection pipe penetrates out of the cleaning assembly shell; a plurality of groups of sludge discharge holes are formed at the bottom end of the inner wall of the cleaning assembly shell; and the problem of dust pollution in the ore processing process is solved, the classification treatment efficiency is improved, and the problem that ore can cause large impact on equipment is solved.

The invention provides a bimetal composite pipe liquid expansion forming feeding device and process. A base pipe and a liner pipe which are well sleeved are axially conveyed onto a movable clamp, and the weld joint of the base pipe faces the 12 o'clock direction before conveying; due to the fact that the base pipe can not rotate in the axial conveying process, the weld joint can not change the direction; after the base pipe axially moves in place, the base pipe is clamped by a left movable clamp and a right movable clamp under the effect of oil cylinders of themselves, the steel pipe is conveyed to a hydraulic composite position by moving the clamping devices, then a left fixed clamping device and a right fixed clamp device are fixed and closed, an upper clamping hoop falls, and then the base pipe where compositing needs to be conducted is clamped in a closed die. By means of the feeding device, on one hand, the problem of impact of the steel pipe on the device is solved; on the other hand, the direction problem of the weld joint of the steel pipe is solved as well; the device can be automatically controlled in the whole technological process, the automation degree of the device is greatly improved, and the labor intensity of workers is greatly lowered.

The invention relates to a river and lake water flow impact catchment area fish habitat structure. A set of diversion dikes are constructed near an inlet of a catchment area, the diversion dikes are in trapezoid shapes, and are composed of main dikes and trapezoid dikes, an angle between each diversion dike and a water flow direction is 30-45 degrees, in a plurality of set positions on the main dikes at intervals, the trapezoid dikes vertically extend to one side, and extending directions of each two adjacent trapezoid dikes are opposite; a bottom shaping area is arranged in the portion, on the inner sides of catchment area, besides the diversion dikes, and the bottom shaping area comprises water channels, bays, beaches, reef groups and an aquatic plant zone; and the water channels are arranged among the adjacent diversion dikes, communicated with all bay areas, communicated with upstream and downstream water flows, and lower than a water level of a dry season by more than 1.5 m. By means of the river and lake water flow impact catchment area fish habitat structure, water flow states can be effectively changed, so that the catchment area and a riverway are kept clear; the problem of flood period water flow impact is effectively solved, and the water flow states are improved; in the dry season, the upstream and downstream water flows are clear, and the water channels and the water bays are communicated, so that migration and inhabitation of fishes are benefited; and by arranging fishing reefs, bottomland and water plants, spawning and growth of the fishes are benefited.

The invention provides an alarm storm processing method and an alarm storm processing device. The method comprises the following steps: receiving alarm messages sent by at least one vehicle terminal; judging whether the number of the same alarm messages sent by the same vehicle terminal received within a preset time period reaches a preset threshold; if the number reaches the preset threshold, determining that the alarm messages sent by the vehicle terminal form an alarm storm; judging whether the alarm messages forming an alarm storm can be processed by use of alarm filtering rules; and if the alarm messages forming an alarm storm cannot be processed by use of alarm filtering rules, using associative alarm processing rules to associatively process the alarm messages forming an alarm storm. By using the method, the problem that an alarm storm has impact on a monitoring platform is solved, and normal operation of the monitoring platform is guaranteed.

The invention relates to an active clamping forward-and-flyback circuit capable of starting or stopping synchronous rectification. According to the active clamping forward-and-flyback circuit capable of starting or stopping the synchronous rectification, an acquisition and isolating circuit and a comparison and driving circuit are added between a primary edge and a secondary edge, the output of a main tube driving circuit of a main circuit is connected with the comparison and driving circuit through the acquisition and isolating circuit, and the comparison and driving circuit is connected with a synchronous rectification tube control end on the secondary edge. According to the active clamping forward-and-flyback circuit capable of starting or stopping the synchronous rectification, the driving stopping of a synchronous rectification tube is achieved on the secondary edge, and the synchronous stopping of the synchronous rectification of the secondary edge is guaranteed when a main tube on the primary edge is switched off. The active clamping forward-and-flyback circuit capable of starting or stopping the synchronous rectification has the advantages that the problem that the main tube is impacted by resonance voltage when energy of the secondary edge of an original active clamping circuit is recovered is solved, the principle of the circuit is simple and reasonable, and other functions and indexes of the circuit will not be affected.

The invention provides a clock synchronization method for a large-scale wireless sensor network. The method comprises the steps that a synchronization life cycle strategy is dynamically configured, the strategy allows the synchronization life cycle of a sensor network node to be changed dynamically, the life cycle can be permanent or temporary, for example, the life cycle can be one hour, the strategy decides the time synchronization life cycle configured in the network node by taking the basis of the mobility or immobility of the node and the battery level of the node as the criterions; a synchronization geographical range strategy is dynamically configured, the strategy allows the sensor network nodes to be partitioned to different geographical ranges, different geographical ranges obtain different time synchronization configuration strategies, such as synchronous frequency and synchronous life cycle, and the strategy decides the way of partitioning the range of the nodes according to the mobility or immobility of the nodes and the distance of the geographical positions of the nodes. The clock synchronization method for the large-scale wireless sensor network classifies the nodes of the whole network according to the application needs and realizes the synchronization lifetime configuration according to nodes in different types, namely the synchronization service time with different durations is configured, so that the impact of different nodes to the network can be effectively solved, and the fault rate of time synchronization is reduced.