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111results about How to "Normal operation does not affect" patented technology

Hot standby redundancy network system and redundancy realization method

The embodiment of the invention discloses a hot standby redundancy network system and a redundancy realization method, which can be suitable for real-time Ethernet. The hot standby redundancy network system comprises at least two network nodes and redundancy nodes which are in one-to-one correspondence with the network nodes, wherein each network node and each redundancy node both comprise four network interfaces and one exchange interface, the four network interface are all provided with the same physical address and logic address, the four network interfaces make up two pairwise redundancy interface in pairs, the network nodes are connected with the corresponding redundancy nodes through the exchange interfaces to make up redundancy node pairs, and the network nodes of the adjacent redundancy node pairs are in cross connection with the redundancy nodes though the network interfaces. With the scheme, the failure rate of the real-time Ethernet is insensitive to the increase of the number of the network nodes, the data message format of the real-time Ethernet does not need to be modified, the failure rate of the real-time Etherent can be obviously reduced, and the redundant degree and the usability of the real-time Etherent can be greatly increased.
Owner:SUPCON GRP +1

Wind generating set and control method thereof

The invention provides a wind generating set and a control method thereof. The wind generating set comprises at least two electric energy transmission systems and a control system, wherein the electric energy transmission systems are connected each other; the control system comprises an upper controller and control subsystems corresponding to all the electric energy transmission systems, and all the control subsystems comprise bottom controllers, wherein the bottom controllers are used for monitoring the operating state parameters of functional units in the corresponding electric energy transmission systems, and under the condition that it is determined that the corresponding functional units meet the abnormal conditions according to the operating state parameters, the operating state parameters of the corresponding functional units are sent to the upper controller; the upper controller is used for generating operating instructions under the condition that the breakdowns of the corresponding functional units occur according to the operating state parameters of the corresponding functional units, the electric energy transmission systems are controlled to work according to the instructions, the wind generating set is fully used, and the generating capacity of the wind generating set is further increased.
Owner:BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD

Anti-ice-flashover composite insulator with lightning protection function

The invention relates to an anti-ice-flashover composite insulator with a lightning protection function, which comprises a mandril (2), and a casing (9) thereof is provided with a first composite umbrella cover (3). The mandril (2) in a cylinder is sleeved with stacked metal oxide valve plates (8) and a spring (7). The lower end of the mandril (2) is provided with a second composite umbrella cover (4). The upper end of the second composite umbrella cover (4) is sleeved with a first strap (11), and the lower end thereof is provided with a second strap (12). A bowl-shaped metal cap (1) and a ball-shaped metal cap (5) are respectively covered on both ends of the mandril (2). In freezing days, the insulator can prevent ice covering and blocking arc serial connection, and greatly reduces the possibility of line trip. The invention has the beneficial effects that: (1) the bearing load for the whole mandril to suspend a transmission conductor is higher; (2) a lightning protection section bears lower voltage; (3) the metal oxide valve plates contact tightly; (4) the lines prevent lightning; and (5) an umbrella skirt string structure insulating outer cover which comprises staggered and laminated large and small umbrella skirts can prevent ice flashover in freezing weather.
Owner:STATE GRID CORP OF CHINA +2

Intrusion prevention device and method based on security policy

The invention discloses an intrusion prevention device and method based on a security policy. A private steal behavior can be effectively blocked and a private steal application can be effectively detected under the condition of not modifying an operating system, not influencing the normal operation of a mobile phone security application and not participating in decision by a user frequently. The device comprises a private obtaining class API monitoring module which is used for starting a private sending class API monitoring module if it is monitored that a mobile smart terminal application calls an API in a private sending class API database; the private sending class API monitoring module which is used for starting a control module when it is monitored that the mobile smart terminal application calls the API in a private sending class API database; the control module which is used for interrupting the operation of a first application and blocking the operation of the first application if it is judged that a behavior mode of the first application does not satisfy all security polices stored in a security policy library module; and an alarm module which is used for popping up a window to remind a user after the control module blocks the operation of the first application.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

High- and low-voltage ride through testing device with function of short circuit to ground and testing method

The invention relates to a high- and low-voltage ride through testing device and testing method for photovoltaic power stations and wind power generating sets and aims to solve the problem of dependence on neutral-point solid ground of a medium-voltage side of a main boosting transformer in implementation of short circuit to ground ride through testing in application of existing voltage ride through testing devices. The testing device comprises an incoming switch K1, a current-limiting reactor L1, a short-circuit reactor L2, a boost capacitor C, a damping resistor R, short circuit switches K2and K3, single-phase option switches K4-K6, an earthing switch K7 and a Z type transformer T1. The current-limiting reactor L1 and the short-circuit reactor L2 form impedance component voltage, and apower grid low voltage dropout process is simulated through different tap position combinations. The current-limiting reactor L1 and the boost capacitor C form capacitance boosting voltage, and a power grid voltage swell process is simulated through different tap position reactance and capacitance combinations. The damping resistor R is used for inhibiting impact and oscillation in input of the capacitor C. The Z type transformer T1 is used for providing an earthing circuit to realize simulation of power grid short circuit to ground.
Owner:黄庆利

In-service pulsed eddy current detection device and method of damage of mine hoisting steel wire ropes

ActiveCN110108790ALow costNot affected by lift-off distanceMaterial magnetic variablesEddy currentEngineering
The invention relates to an in-service pulsed eddy current detection device and method of damage of mine hoisting steel wire ropes, and belongs to the technical field of damage detection of the mine hoisting steel wire ropes. Rollers of the detection device are fixed to roller brackets and slide with movement of a steel wire; springs are fixed between the roller brackets and semicircular tube sideplates and are used for adjusting the diameters of the steel wire ropes clamped by the rollers in a follow-up mode; the roller brackets are symmetrically distributed and mounted at the two ends of the semicircle tube side plates, and limit through nuts; and probe sensors are distributed on the semicircle tube side plate in a circular array mode and located between the two roller brackets, and thesteel wire ropes penetrate through a circular tubular mechanism assembled and formed by the two semicircle tube side plates and are clamped by the four rollers. Detection signals of the mine hoistingsteel wire ropes are measured by the probe sensors, the damage state of the steel wire ropes is evaluated by comparing with a signal threshold value measured by a standard test part of the mine hoisting steel wire ropes, in-service nondestructive detection of the mine hoisting steel wire ropes is realized, influence of probe lift distance variation is inhibited, and the device is self-adaptivelyadjusted with the diameter size of the steel wire ropes.
Owner:CHINA UNIV OF MINING & TECH

Wind generator and tower drum thereof

The invention discloses a wind generator and a tower drum thereof. The wind generator comprises at least two blades and the tower drum, wherein the tower drum comprises an upper tower drum and a lower tower drum, a containing cavity is excavated in the lower tower drum from the top of the lower tower drum downwards, a part of the upper tower drum is stretched into the containing cavity, a lighting mechanism used to vertically move the upper tower drum is arranged in the containing cavity, the upper tower drum after being lifted is fixedly connected with the lower tower drum in detachable mode, and the upper tower drum after being moved downwards is connected with the a part of the lower drum cylinder in nesting mode. When a typhoon hits the wind generator, a clamping portion cooperates with the blade after being sunk after a mechanical arm is stretched out, and due to the fact that the wind generator is of a mechanical structure, the clamping portion can reliably and firmly grasp the blades, wind power is blown from the back of each blade to two sides of each blade, and the upper tower drum, the lower tower drum and the blades can form a trinity structure, and therefore the wind power on the upper portion of the tower drum can be further reduced, and typhoon resistance ability of the upper portion of the wind generator and the whole wind generator is enhanced.
Owner:CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD

Security protection method and system for network hopping controllers and related equipment

The invention discloses a security protection method and system for network hopping controllers and related equipment, and the method comprises the steps: electing duty nodes through a voting mechanism in a controller cluster constructed by a plurality of hopping controllers, and enabling other nodes to serve as backup nodes; establishing connection between the duty nodes and a network hopping actuator, and providing service for the network hopping actuator; enabling the backup nodes to supervise the health states and the working states of the duty nodes, if the duty nodes break down and/or are maliciously controlled and/or hijacked, selecting a new duty node, and providing service continuously for the network hopping actuator. The security protection method and system have the advantagesthat an existing Raft algorithm is improved, the backup nodes have the function of monitoring the health states and the working states of the duty nodes at the same time, so that the hopping controller has the endogenous safety protection capability, the problem that the protection capability of the whole network hopping system is disintegrated due to the fact that the hopping controllers are maliciously controlled or hijacked is solved, and the anti-attack capability of the system is improved.
Owner:武汉量子风暴信息科技有限公司 +1

Self-expanding brake lift guide rail

The invention relates to a self-expanding brake lift guide rail. The self-expanding brake lift guide rail comprises a rail flange and a rail body; the rail body is perpendicular to the rail flange; the rail flange is connected with the rail body to form a structure in the shape of a Chinese 'Tu' (meaning convex); the top of the rail body is uniformly provided with a plurality of I-shaped grooves along the length direction of the rail body, wherein the plurality of I-shaped grooves is perpendicular to the length direction of the rail body; I-shaped limit rods being able to move along the axial direction of the I-shaped grooves are arranged inside the I-shaped grooves; springs are connected between the limit rods and the bottoms of the I-shaped grooves; filling chambers are formed between the limit rods and the bottoms of the I-shaped grooves; and the rail flange is provided with an air inflation device for inflating the filling chambers. After using such a scheme, when the lift works normally, the limit rods retreats into the I-shaped grooves under the effect of the springs without affecting the normal work of the lift; when the lift is stalling, the air inflation device inflates the filling chambers, thereby forcing the first sections of the limit rods to extend out of the I-shaped grooves in order to decelerate the lift, thus effectively reducing the hazard of lift stalling.
Owner:CHANGZHOU CHANGYUAN NONWOVENS PROD

Display module, manufacturing method of display module and display device

The invention discloses a display module, a manufacturing method of the display module and a display device. The display module comprises: a display module, fingerprint recognition assembly, the display module comprises a first electrode, an insulating layer, a semiconductor device and a second electrode which are stacked in the thickness direction of the display module, the insulating layer is positioned on the first electrode; the semiconductor device is located on one side of the insulating layer away from the first electrode, wherein the second electrode is located at one side, deviating from the insulating layer, of the semiconductor device, the insulating layer is provided with a first through hole and a first via hole located at the peripheral side of the first through hole, the first through hole penetrates through the insulating layer, and at least part of the semiconductor device is located in the first through hole and connected with the first electrode through the first through hole; the light absorption part and the semiconductor device are arranged on the same layer and made of the same material, at least part of the light absorption part is located in the first via hole, and the light absorption part is insulated from at least one of the first electrode and the second electrode. According to the embodiment of the invention, the accuracy of fingerprint recognitionby the fingerprint recognition assembly can be improved.
Owner:XIAMEN TIANMA MICRO ELECTRONICS

Accelerator and beam current path online monitoring device

The invention discloses a beam current path online monitoring device. A beam current channel used for passing electron current is arranged in the middle of an annular diaphragm; a plurality of temperature sensors are uniformly arranged on the annular diaphragm in the peripheral direction; the distance from each temperature sensor to the center of the annular diaphragm is identical; the center of the annular diaphragm is right aligned with the beam current channel; signals of the temperature sensors are transmitted to a monitor. When the electron beam passes through the center position of the annular diaphragm, the peripheral temperature of the annular diaphragm basically keeps identical; if the electron beam deviates, the distance from each temperature sensor changes; the monitor can judge whether the electron beam deviates or not according to the monitoring temperature change of each temperature sensor. The annular diaphragm is sleeved and arranged in the beam current passage; no influence is generated on the normal operation of electrons; the online monitoring can be realized; the annular diaphragm forms one part of the beam current passage. The scheme can be used for measuring whether the whole electron beam is in the center or not. The invention also provides an accelerator comprising the beam current path online monitoring device.
Owner:CGN DASHENG ELECTRON ACCELERATOR TECH

Air treatment module and air conditioner

The invention is suitable for the field of air conditioners, and discloses an air treatment module and an air conditioner. The air treatment module comprises a shell, a purifying and filtering net, a humidifying net and a draught fan; the shell is provided with an air treatment air inlet, an air treatment air outlet and an air treatment air duct which communicates with the air treatment air inlet and the air treatment air outlet and is independently arranged relative to a heat exchange air duct of the air conditioner; the purifying and filtering net, the humidifying net and the draught fan are all arranged in the air treatment air duct, the axial direction of the draught fan is horizontal, and the purifying and filtering net is arranged at one axial end of the draught fan; and the humidifying net is arranged on the radial side of the draught fan and located between the draught fan and the air treatment air outlet in the air flowing direction in the air treatment air duct. According to the air treatment module and the air conditioner, normal running of a heat exchange function of an air conditioner body can not be influenced by arrangement of the air treatment module; in addition, it can be guaranteed that the purifying and filtering net has the large filtering area on the condition that the shell of the air treatment module is designed to be short, and the air purifying and filtering effect is good.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD

Monitoring system and online monitoring method for working state of engine bearing

ActiveCN114136613ASimple resultAvoid the problem of not being able to fix passive MEMS sensorsSustainable transportationMachine bearings testingSignal conditioning circuitsFeature extraction
The invention provides a monitoring system and an online monitoring method for the working state of an engine bearing, the monitoring system comprises a reading antenna, a signal conditioning circuit and a sensor group, the sensor group comprises a passive MEMS temperature sensor, a passive MEMS rotating speed sensor and a passive MEMS vibration sensor, and the passive MEMS temperature sensor, the passive MEMS rotating speed sensor and the passive MEMS vibration sensor are respectively arranged on a bearing inner ring, a retainer and a bearing outer ring. The online monitoring method comprises the steps that a temperature signal, a rotating speed signal and a vibration signal are acquired and output to a reading antenna, and the reading antenna outputs an initial acquisition signal to a signal conditioning circuit; the signal conditioning circuit carries out filtering modulation, noise reduction, power amplification, frequency division processing, feature extraction and the like on the initially collected signals and then outputs a temperature output curve, a rotating speed output curve and a vibration output curve, the engine bearing temperature, vibration, rotating speed and other parameter feature frequencies can be accurately obtained, and the accuracy of monitoring data is improved.
Owner:AECC SICHUAN GAS TURBINE RES INST
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