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

Message speed limit method

A method for limiting speed of message includes presetting width of time window and number of message to pass , obtaining current system time and calculating out passed time of current time window ( CTW ) , judging whether passed time of CTW is less that time window width or not , allowing message to pass CTW and refreshing end time of CTW if it is not , judging whether number of passed message is greater that number of message being allowed to pass or not if it is , calculating out message number exceeding to pass , making flow delay for them then allowing them to pas if it is or otherwise allowing message in CTW to pass and refreshing end time of CTW .
Owner:NEW H3C TECH CO LTD

Data prevention method based on content filtering

The invention discloses a data prevention method based on content filtering, which is characterized by firstly monitoring the network dataflow by adopting the network filtering drive technology, monitoring the peripheral dataflow by adopting the equipment filtering drive technology, capturing the data of network equipment and peripheral interfaces of a terminal computer, then carrying out characteristic matching on the intercepted network dataflow and equipment dataflow by adopting the content filtering technology based on multi-pattern matching, preventing the dataflow judged to be sensitiveinformation from flowing outside and allowing the dataflow judged to be general information to flow outside, thereby protecting sensitive data from leaking. The method has the following advantages: the data prevention granularity is finer, the content filtering efficiency is high, the core data security is improved, normal operation of the user is not affected and the working efficiency is improved.
Owner:中国人民解放军理工大学指挥自动化学院

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

Dynamic micro-service editing method, device and server for multi-language cloud compiling

The invention provides a dynamic micro-service editing method, device and a server for multi-language cloud compiling. The method comprises the following steps: when a developer triggers a micro-service editing instruction on editing equipment, the editing equipment calls out a compiling window so that the developer can edit the script code of the micro-service in the window; after the editing is finished, the editing equipment sends the script code to the server, the server checks the script code, and then feeds back a corresponding check result to the editing equipment to realize the editing to the micro-service. Since the edited micro-service can realize one function point of the preset function but not the whole business system, other businesses in the business system formed by the micro-service still can run normally in the process of adding new function point, the normal operation of the whole business system cannot be affected in the process of upgrading the business system, and the flexibility, open, maintainability and scalability of the system function expansion are effectively improved.
Owner:BEIJING BEISEN CLOUD COMPUTING CO LTD

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

Application program upgrading method and device

The embodiment of the invention discloses an application program upgrading method and device. According to the method, after a target upgrading package of a to-be-upgraded application program is received, the target upgrading package is stored in an idle working directory which is not occupied by the to-be-upgraded application program currently, a target working directory is obtained, and then a target process for calling the target working directory is created. Through the method, the target upgrading package is stored into a folder corresponding to the idle working directory, so that the upgrading process of the to-be-upgraded application program does not influence normal operation of the to-be-upgraded application program, a service corresponding to the to-be-upgraded application program or a target application program is not interrupted in the upgrading process of the to-be-upgraded application program, and the continuity of the service provided in the upgrading process of the to-be-upgraded application program is guaranteed.
Owner:BEIJING QIANXIN TECH

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

Method for manually adjusting static hydraulic balance of centralized heating pipe network based on impedance

The invention discloses a method for manually adjusting the static hydraulic balance of a centralized heating pipe network based on impedance, which is divided into two processes: rough adjustment andfine adjustment. The coarse adjustment process can be carried out in a non-operational state of a heating system. Based on the results of the pipe network hydraulic calculation, the calculated impedance of a static regulating valve required for static balance is calculated, and the opening is adjusted to be corresponding to the impedance and locking is performed; and the fine adjustment is carried out in such a way that in any operation state of the heating system, results are tested according to users' flow, users needing to fine adjustment are screened according to users' imbalance rate, the impedance of the users is recalculated according to a set formula, and the regulating value is readjusted to a valve opening corresponding to the impedance. The method has no special requirements for operating conditions, and is simple and convenient in operation, and the adjustment process does not affect the normal operation of the pipe network.
Owner:HENAN POLYTECHNIC UNIV

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

Air conditioner system and control method thereof

The invention discloses an air conditioner system and a control method. The air conditioner system comprises multiple air conditioners. Each air conditioner comprises an outdoor unit and an indoor unit. The air conditioner system further comprises a switch assembly used for switching the indoor unit in any one air conditioner to be connected with the outdoor unit of another air conditioner so as to form a refrigerant circulation loop. Due to the fact that the air conditioner system is provided with the switch assembly, when the outdoor unit of one air conditioner breaks down, the indoor unit of the broken-down air conditioner can be switched to be connected with the outdoor unit of another air conditioner so as to form the refrigerant circulation loop, normal operation of the indoor unit is maintained by means of the outdoor unit of the corresponding air conditioner, accordingly, normal operation of the indoor unit is not affected in the maintenance stage of the outdoor unit, and air conditioning requirements of uses are met.
Owner:GREE ELECTRIC APPLIANCES INC

Handheld adjusting device for inverter air conditioner and handheld adjusting system for same

The invention provides a handheld adjusting device for an inverter air conditioner and a handheld adjusting system for the same, wherein the handheld adjusting device is connected with a controller of the inverter air conditioner and used for adjusting parameters of the inverter air conditioner. The handheld adjusting device comprises a communication module, a microprocessor and an information input module, wherein the communication module is used for communication with the controller of the inverter air conditioner, the microprocessor is connected with the communication module and used for generating parameter adjusting signals, and the information input module is connected with the microprocessor and used for receiving the air conditioner parameters inputted by a user. Compared with the prior art, the handheld adjusting device for the inverter air conditioner has the advantages of simplicity and convenience in parameter adjusting process and low cost.
Owner:GREE ELECTRIC APPLIANCES INC

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

Vehicle-mounted liquid security check channel of bus

The invention provides a vehicle-mounted liquid security check channel of a bus. A left side plate and a right side plate of a door frame are provided with a first laser infrared distance measurement instrument and a second laser infrared distance measurement instrument respectively, a capacitance measurement system comprises a first conductive plate and a second conductive plate, a central controller is provided with a calculation unit, the calculation unit calculates to obtain a dielectric constant epsilon of measured liquid, and the central controller is further provided with a comparison unit judging whether the measured liquid is safe or not. Due to a large difference between a dielectric constant epsilon of flammable and combustible liquid and a dielectric constant epsilon of safe liquid, safety of the liquid can be assessed according to the dielectric constant epsilon obtained after measurement. The vehicle-mounted liquid security check channel occupies a little space and can be conveniently installed on the bus and cannot influence operation of the bus and traveling of citizens.
Owner:蔚复来(浙江)科技股份有限公司

Hot plug method, hot plug control device, a voltage balancing method and device

The embodiment of the invention provides a hot plug method, a hot plug control device, and a voltage balancing method and device. According to the embodiment of the invention, when there is a to-be-change battery unit in a plurality of parallel battery units, a branch circuit where the to-be-change battery unit is located is switched off. Accordingly, the technical scheme of the invention can solve problems that there is conflict between the replacement of a battery unit and the normal operation of a power supply system in the prior art and therefore the safety and stability of the power supply system are lower.
Owner:컨템포러리엠퍼렉스테크놀로지씨오리미티드

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

Authorizing system of intelligent lock

ActiveCN108682063AAccurate authorizationExclude uptimeIndividual entry/exit registersCommunication unitAuthorization
The invention discloses an authorizing system of an intelligent lock. The intelligent lock comprises a lock body and an intelligent key. The authorizing system comprises a group adding unit, a group list storing unit, a device adding unit, a device lock list storing unit, a lock adding unit, a lock and key list storing unit, an authorization request unit, an authorizing unit, a lock searching unit, a transferring matching unit and a communication unit, wherein the group adding unit is used for adding group information to a group list and storing to the group list storing unit; the device adding unit is used for adding the device information and the lock information corresponding to a device to the device lock list and storing to the device lock list storing unit; and the lock adding unit is used for adding the lock information and the key information corresponding to the key to the lock and key list and storing to the lock and key list storing unit. The system is capable of sequentially and accurately authorizing.
Owner:戴天智能科技(上海)股份有限公司

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

Hot standby method of intelligent parking all-in-one machine

PendingCN112419524AGuarantee basic operationRealize hot standbyTicket-issuing apparatusClosed circuit television systemsJavaData storing
The invention discloses a hot standby method of an intelligent parking all-in-one machine, which comprises a host and a standby machine which share one database, and is characterized in that the frontend of the database is connected with a Web visual interface, and the rear end of the database is connected with a java background; parameters of configuration files in a database are modified through java background operation to serve as constants and variables needed by a host and a standby, the database is closed and started according to a fixed sequence in cooperation with bat scripts, and dual-computer hot standby of the host and the standby is achieved. According to the invention, hot standby and additional recording of data can be realized, and the integrity of data stored by the intelligent parking all-in-one machine in a short-term fault period is ensured, so that normal operation of parking lot business is ensured.
Owner:杭州华云科技有限公司

TT, TN distribution system

PendingCN110165653AProtection function setting scienceThe protection function is set reasonablyElectrical testingThree-or-more-wire dc circuitsElectronic controllerPower grid
The invention provides a TT, TN distribution system (800, 810, 820). The distribution system (800, 810, 820) is provided with at least one protective device (100-1, 100-21, 100-22...) and at least oneelectronic controller, and is characterized in that a power supply of the electronic controller is obtained from the distribution system (800, 810, 820), at least one current collector (300) is arranged on N lines corresponding to the protective device (100-1, 100-21, 100-22...), and the rated current value of the current collector (300) is not greater than 20% of the rated current of the N line.The protective device disclosed by the invention realizes the functions of detecting and protecting N line breakage under the condition of three-phase current unbalance which causes damage to a loadand will affect the normal operation of the load, thereby enabling the protection function setting of the protective device to be more scientific, reasonable and perfect, and enabling the operation ofthe power grid to be safer. Meanwhile, the TT, TN distribution system achieves the goal of enabling the traditional electric power protection device to have the above functions at a low cost, therebyhaving an extremely high cost-performance ratio.
Owner:BEIJING PEOPLES ELECTRIC PLANT

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

Method for dehumidifier welding blocking self detecting

The invention provides a method for dehumidifier welding blocking self detecting. When a dehumidifier is in a welding blocking self-detecting mode, welding blocking self detecting is carried out after the dehumidifier operates for preset time according to the set welding blocking self-detecting mode. If the fact that a welding blocking problem exists in a system is judged, the dehumidifier stops working, and welding blocking information is fed back. If the fact that the welding blocking problem does not exist in the system is judged, the dehumidifier is controlled to be out of the welding blocking self-detecting mode, and a normal operation mode is carried out. According to the method for dehumidifier welding blocking self detecting, during production, product welding blocking situations are detected automatically, the product quality of a production link can be controlled, faults such as product damage are reduced, production efficiency is improved, and the burden of after-sales service is relieved. Meanwhile, the self-detecting method and other existing control methods of the dehumidifier are independent, and accordingly under the situation that an after-sale product is used normally, the normal function cannot be affected.
Owner:GREE ELECTRIC APPLIANCES INC

Desulfurization and dedusting equipment with air intake system

The invention relates to desulfurization and dedusting equipment with an air intake system. The desulfurization and dedusting equipment comprises a tank body (1), wherein the tank body (1) is divided into an upper main body part and a lower sediment tapered body part (6), and the upper main body part is a regular quadrangular body with a square section; the lower sediment tapered body part (6) is a quadrangular frustum pyramid with a square section, and a flue gas outlet (2) is formed in the top end of the upper main body part; a sediment outlet is formed in the bottom end of the lower sediment tapered body part (6), and an outlet valve (7) is arranged at the sediment outlet; a circulating lye outlet pipe (4) is arranged at the boundary of the main body part and the sediment tapered body part, and a lye input spraying pipe (3) is arranged at a part, close to the top end, on the main body part; a flue gas inlet pipeline (5) is arranged at a part, close to the lower part, in the middle of the main body part, and is provided with the air intake system close to the tank body (1), and an operable spray blocking device (9) is arranged above the sediment tapered body part (6) in the tank body (1).
Owner:巨野百林化学有限公司

Flexible limited current circuit

The invention relates to the technical field of overcurrent protection of electricity power or an electronic circuit, in particular to a flexible limited current circuit. The flexible limited current circuit comprises a positive temperature coefficient (PTC) resistance PTC branch, a silicon carbide (SiC) nonlinear resistance SiC branch and a zinc oxide (ZnO) nonlinear resistor ZnO branch, wherein the resistance PTC branch, the nonlinear resistance SiC branch and the nonlinear resistor ZnO branch are connected in parallel. When the flexible limited current circuit is adopted to solve overcurrent problem of a circuit, the flexible limited current circuit is complete in function and has a self-protection function, maintenance is not needed, and safety of the circuit is greatly improved.
Owner:江苏八益电器有限公司

Driving control circuit, driving control method, circuit board and air conditioner

The invention discloses a drive control circuit, a drive control method, a circuit board and an air conditioner. The drive control circuit comprises a first drive circuit, a switch assembly and a second drive circuit. By setting the second drive circuit, when the connection mode of a three-phase winding is switched, the second driving circuit can provide a second driving voltage for the three-phase winding in the switching process of the connection state of the three-phase winding to simulate the voltage environment where a first switch group and a second switch group are located in the switching process; therefore, when the connection mode is switched, even if the first switch group or the second switch group changes the on-off state, a motor still operates normally, the non-stop switching of the connection mode of the three-phase winding of the motor can be realized, and the normal operation of the compressor is not influenced.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Coal mine conveying energy-saving system

The invention relates to the technical field of coal mine equipment, in particular to a conveying system. The coal mine conveying energy-saving system comprises a main electric roller, a main starter, an auxiliary electric roller and an auxiliary starter, wherein a main current sensor and an auxiliary current sensor are arranged inside the main starter and the auxiliary starter correspondingly. The coal mine conveying energy-saving system further comprises two energy-saving protectors, one energy-saving protector is connected with a control end of the main starter, the other energy-saving protector is connected with a control end of the auxiliary starter, and the two energy-saving protectors are in signal connection. The coal mine conveying energy-saving system is applied to coal mine production, and the automatic switching function that double machines are started when a belt type conveying system is started; when the belt type conveying system is steady, one machine operates; when the belt type conveying system is overloaded, the two machines operate; and when the belt type conveying system is provided with light loads, one machine operates is realized.
Owner:SHANGHAI YI KUN AUTOMATION EQUIP

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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