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30results about How to "Reduce Control Risk" patented technology

Reactor core structure, molten-salt pebble bed reactor and fuel management and reactor core loading method of molten-salt pebble bed reactor

PendingCN109509562AMinimize Reactor Control RisksMaintain core stabilityOptical rangefindersFuel elementsNuclear engineeringMolten salt
The invention discloses a reactor core structure, a molten-salt pebble bed reactor and a fuel management and reactor core loading method of the molten-salt pebble bed reactor. An active region of thereactor core structure is provided with a charging opening located at bottom and a discharging opening located at top, the density of fuel spheres in the active region is lower than that of a molten salt in the active region, and fuel inventory capable of being contained by the active region is greater than preset fuel inventory of full-power operating days. According to the reactor core structure, the global unloading of the fuel spheres at lifespan ends can be achieved, and components achieving an online reloading function are not required, so that the device can be simple; the fuel spheres,which are subjected to global unloading at the lifespan ends, have no need of being treated one by one and directly enter a spent fuel treatment system, so that radioactivity can be lowered, the reliability of the device is improved, and thus, the purification of the fuel spheres can become simple; due to the reactor core structure, the fuel management and reactor core loading method can have anadjusting margin, and a running target is guaranteed.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Control method and system for primary frequency modulation of thermal power generation unit

ActiveCN106065791AChange loadMeet the requirements of primary frequency modulationMachines/enginesEngine componentsPower gridControl valves
The invention discloses a control method and system for primary frequency modulation of a thermal power generation unit. The method comprises steps as follows: frequency modulation capability parameters of a steam turbine control valve are acquired; according to the frequency modulation capability parameters of the steam turbine control valve, a control valve frequency modulation threshold value of the power generation unit in a frequency modulation range of plus-minus 11 r/min is acquired; whether grid frequency exceeds the control valve frequency modulation threshold value under current working conditions is judged; if the grid frequency exceeds the control valve frequency modulation threshold value, primary frequency modulation is performed in a mixed frequency modulation manner for controlling the opening degree of the steam turbine control valve and controlling the opening degree of a feed-water bypass; and if the grid frequency does not exceed the control valve frequency modulation threshold value, primary frequency modulation is performed in a control valve frequency modulation manner for controlling the opening degree of the steam turbine control valve. The opening degree of the feed-water bypass and the opening degree of the steam turbine control valve are controlled for simultaneous operation, the requirement for primary frequency modulation of the unit is met, the frequency modulation manners are selected according to actual conditions, the opening degree of the steam turbine control valve is involved in both manners, the requirement for the rapid response to primary frequency modulation can be met, and the problem that primary frequency modulation responding capability is reduced due to restrictions of boundary conditions in the condensation water throttling frequency modulation process is solved.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1

Facial recognition-based secure printing audition system

ActiveCN105426137ARealize real-name system auditReduce the risk of identity fraudDigital data authenticationDigital output to print unitsFacial recognition systemEthernet
The invention relates to a facial recognition-based secure printing audition system. The facial recognition-based secure printing audition system is connected with an identity authentication terminal, a printing audition server, a printer and a terminal computer through an Ethernet framework, and comprises an identity authentication module, a printing operation control module and a printing behavior audition module. The facial recognition-based secure printing audition system is used for decreasing the risk and threat caused by the operation of carrying out printing output by illegal users which pretends to be legal users in the sensitive carrier production process, realizing the printing identity authentication and behavior audition in a real-name system at a price as small as possible, decreasing the chances of unauthorized sensitive data output leakage of malicious users and tracing the faces of the real printing output personnel and the panorama photos of the operators, so as to ensure the security of the sensitive information and the reliable audition of the information.
Owner:AVICIT CO LTD

Distributed traffic signal lamp control system

The invention discloses a distributed traffic signal lamp control system, comprising a master controller, a plurality of groups of signal lamps, and a plurality of slave controllers, wherein each slave controller is composed of a data receiving unit, an MCU processor and output control end; the data receiving unit is used for communicating with the master controller in a one-way manner and receiving the signals from the master controller; the MCU processor is used for receiving the data afferent from the data receiving unit, computing according to the preset program and sending an order to the output control end; and the output control end is used for receiving the order from the MCU processor and sending the order to the signal lamps or synchronized slave controllers to control the working state of the signal lamp group or realize data communication among synchronized slave controllers. The invention uses network cable transmission to control signals both in the master controller and the slave controllers, thus reducing the usage amount of cables, lowering material cost, needing no large-scale road breaking when pipelines are not pre-buried and lowering construction cost.
Owner:ZHONGSHAN KESHUN ANALYTICAL & TESTING TECH

Public safety and sanitation intelligent rapid inspection system

The embodiment of the invention discloses a public safety and sanitation intelligent rapid inspection system. The system comprises public safety and sanitation intelligent rapid inspection passing equipment and an intelligent rapid inspection supervision platform. The passage equipment is used for performing passage personnel security check detection in a networking state, acquiring passage personnel photos, certificate photos, certificate information, temperature measurement information, nuclear radiation detection information and passage state information in real time to form a complete communication record, and sending the complete communication record to the supervision platform for storage; and in a network disconnection state, single-machine operation can be realized. By implementingthe system, the one-stop operation of human body infrared temperature measurement, security check detection, nuclear radiation detection, human body high-temperature early warning, identity information acquisition, face information comparison, person and certificate information analysis, two-dimensional code acquisition and verification and key passing personnel early warning can be completed bypassing personnel in a'non-inductive' state when passing equipment is in a networked state and an off-network state; and the management and control of the passing personnel are effectively enhanced.
Owner:苏洋

Power marketing and distribution risk control management method and system

The invention relates to a power marketing and distribution risk control management method and system. The method comprises: determining a transformer station data management and control strategy according to the GIS state information associated with a transformer station and determining a transformer station abnormal data index according to the transformer station data management and control strategy; determining a line data management and control strategy according to the GIS state information associated with a line and determining a line abnormal data index according to the line data management and control strategy; determining a transformer data management and control strategy according to the GIS state information associated with a transformer and determining a transformer abnormal data index according to the transformer data management and control strategy; determining a user data management and control strategy according to the line-changed state information associated with theuser, and determining a user abnormal data index according to the user data management and control strategy; performing statistical analysis on the above data indexes to obtain the electronic transferabnormal data of the station-line-transformer-household. The technical solution provided by the invention can reduce the control risk of power marketing and distribution in a power system and improvethe efficiency of abnormal processing.
Owner:ADVANCED SYST DEV

Tobacco alcoholization device

ActiveCN111758995ARealize continuous dynamic alcoholizationGuaranteed uniformityConveyorsTobacco treatmentThermodynamicsEngineering
According to a tobacco alcoholization device provided by the invention, the tobacco alcoholization quality is remarkably improved through the double circulation of temperature and humidity air circulation and tobacco material circulation, and the tobacco alcoholization quality is observably improved. The device comprises an alcoholization chamber, at least two first conveyors which are arranged ina layered mode from top to bottom are arranged in the alcoholization chamber, and material elevators are arranged on sides of the first conveyors so as to elevate and convey tobacco materials locatedon the first conveyor on the lower layer to the first conveyor on the upper layer; and the device also comprises temperature and humidity air circulating equipment used for providing a temperature and humidity air environment for the alcoholization chamber. According to the tobacco alcoholization device, the tobacco materials are alcoholized in the dynamic conveying process, so that the tobacco materials make full and uniform contact with the alcoholizing environment provided by warm and wet air, the uniformity of the temperature, humidity and oxygen content of the tobacco materials is remarkably improved, and the alcoholizing efficiency and quality are improved.
Owner:INNER MONGOLIA KUNMING CIGARETTE CO LTD +2

Optical communication circuit of functional modules and controllers in DCS (data transmission system) control system

The invention relates to the technical field of communication circuits and discloses an optical communication circuit of functional modules and controllers in a DCS (data transmission system) control system. The optical communication circuit is used for realizing data exchange between a first CPU (central processing unit) IC1 and a second CPU chip IC4. The optical communication circuit comprises a first transceiver IC2 and a second transceiver IC3 which are identical in structure, each of the first transceiver IC2 and the second transceiver IC3 comprises a signal receiving circuit, a signal sending circuit and a logic controller connected with the signal receiving circuit and the signal sending circuit. By adding an optical transceiving circuit, plug-in-free data transmission between functional modules, between the functional modules and the controllers and between the controllers are realized, quality of communication is guaranteed, electromagnetic interference is eliminated, service life is prolonged, communication speed is increased, hot plugging and unplugging of a communication module is achieved, operation quality of the DCS control system is guaranteed effectively, and risks in controlling is greatly lowered.
Owner:HUNAN THREE ARROWS AUTOMATION TECH

Hydraulic interlocking control loop

The invention discloses a hydraulic interlocking control loop which comprises a first hydraulic loop, a second hydraulic loop and a reversing valve III for simultaneously controlling hydraulic locks in the first hydraulic loop and the second hydraulic loop. A left oil outlet A of the reversing valve III is connected with control oil ports x of the hydraulic lock Ia and the hydraulic lock Ib in the first hydraulic loop and leakage oil ports y of the hydraulic lock IIa and the hydraulic lock IIb in the second hydraulic loop, and a right oil outlet B of the reversing valve III is connected with leakage oil ports y of the hydraulic lock Ia and the hydraulic lock Ib in the first hydraulic loop and control oil ports x of the hydraulic lock IIa and the hydraulic lock IIb in the second hydraulic loop. The interlocking function of the two hydraulic loops is achieved through a set of reversing valves, the problems of equipment damage and even personal injuries caused by electrical interlocking failure are effectively solved, and control risks are reduced. The number of the reversing valves needed in the loops is reduced, manufacturing cost is saved, the number of hidden troubles of oil leakage points is reduced, and the reliability of a system is improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Household management robot system and method

The invention discloses a household management robot system which is composed of a control terminal, a communication network, a transceiver, a general controller, an external controller, mechanical loading and controlled equipment, and an intelligent household management method applied to the above system. Thus, multiple kinds of controlled equipment can be remotely controlled by using normalized hardware, execution conditions by the controlled equipment on control instructions can be judged remotely through state data of the controlled equipment, a camera as one kind of controlled equipment is particularly used for intuitively and accurately acquiring the operation state of another kind of controlled equipment after the control instruction is executed, remote control risks are reduced, and remote control is realized for non-networked traditional household appliance equipment.
Owner:李博

Rotational reserve optimization method employing risk stepwise polymerization scene

The invention discloses a rotational reserve optimization method employing risk stepwise polymerization scene. The rotational reserve optimization method comprises the steps of firstly, optimizing selected reserve measure combination of a previous iterative step, calculating sum of remaining risks of each scene under all scene sets, ending rotational reserve measure (reserve measure RM) optimization selection under the scene sets if the sum of the remaining risks under all scene sets is smaller than the set total remaining risk threshold, otherwise, setting scene sub-sets with remaining risk exceeding a single scene remaining risk threshold under all scene sets to be a scene set to be polymerized; clustering a single scene according to scene probability distance, adding the single scene toa scene set to be optimized, and allocating the scene probability in the scene set to be optimized again; and finally, optimizing RM selection by many steps according to cost performance ratio. The rotational reserve optimization method is high in calculation effect and good in optimization effect, and the calculation efficiency and the total control risk can be coordinated very well.
Owner:NARI TECH CO LTD +1

Gradient solder layer preparation and integrated brazing process based on laser fused deposition additive manufacturing technology

The present invention provides a gradient solder layer preparation and an integrated brazing process based on laser fusion deposition additive manufacturing technology, aiming at the brazing process of the same / dissimilar metal materials of complex structure heat exchange parts manufactured based on laser selective melting technology. Due to the lack of technology, a gradient solder layer based on laser fusion deposition additive manufacturing technology was designed and invented to meet high temperature and medium temperature gradient brazing. The multi-level brazing seam with a single melting temperature is replaced by gradient solder layers with different melting temperatures, which reduces the melting point of the solder and improves the brazing quality. Aiming at the problems of large residual stress and low elongation of metal parts manufactured by laser selective melting and additive technology, the present invention is suitable for combining metal parts manufactured by laser selective melting and additive with the same / different kind by traditional processing techniques (casting, forging or extrusion) Pressing, etc.) The metal parts manufactured by welding are formed at one time, and heat treatment is realized at the same time, the residual stress is eliminated, the weld shape is improved, the component performance is improved, the production efficiency is improved, and the production cost is reduced.
Owner:BEIJING UNIV OF TECH

Small-space guardrail hot galvanizing device

The invention relates to a small-space guardrail hot galvanizing device, and belongs to the field of automatic galvanizing. The small-space guardrail hot galvanizing device comprises a zinc pot and a main machine, wherein the main machine comprises a main machine frame; two lifting hooks are arranged at the two ends of the bottom of the main machine frame; a main shaft is hung on the two lifting hooks; a plurality of disc chucks are arranged on the main shaft; the main shaft can rotate on the lifting hooks; the disc chucks are matched with a charging basket in a rotating mode so that a guardrail plate can be transferred from one side of the zinc pot to the other side of the zinc pot; a gear pair is arranged on one side of the main machine frame; a driving motor is arranged at one end of the upper portion of the main machine frame; the driving motor drives the main shaft to rotate through the gear pair; a linkage mechanism is arranged on the main machine frame and comprises a driving air cylinder and a pressing-down and lifting linkage device; a pressing-down device and a lifting device are arranged on the pressing-down and lifting linkage device; the pressing-down device is arranged on the rear side of the main machine frame; the lifting device is arranged on the front side of the main machine frame; the driving air cylinder drives the pressing-down device and the lifting device to ascend and descend through the pressing-down and lifting linkage device; and the lifting direction of the pressing-down device is opposite to that of the lifting device.
Owner:刘佃福

A secure printing audit system based on facial recognition

The invention relates to a facial recognition-based secure printing audition system. The facial recognition-based secure printing audition system is connected with an identity authentication terminal, a printing audition server, a printer and a terminal computer through an Ethernet framework, and comprises an identity authentication module, a printing operation control module and a printing behavior audition module. The facial recognition-based secure printing audition system is used for decreasing the risk and threat caused by the operation of carrying out printing output by illegal users which pretends to be legal users in the sensitive carrier production process, realizing the printing identity authentication and behavior audition in a real-name system at a price as small as possible, decreasing the chances of unauthorized sensitive data output leakage of malicious users and tracing the faces of the real printing output personnel and the panorama photos of the operators, so as to ensure the security of the sensitive information and the reliable audition of the information.
Owner:AVICIT CO LTD

Safe and reliable DC motor control system and control method

ActiveCN105226614BImplement current sensingImprove control intelligence levelEmergency protective circuit arrangementsLinear motionReal-time data
The safe and reliable DC motor control system of the present invention includes a processor, a driver, an extended position proximity switch, a received position proximity switch and a current sensor, wherein: the processor is used to receive acquisition signals and form control signals and alarms according to built-in control strategies signal; the driver is used to receive the control signal and form the corresponding electric power signal to output to the DC bus; the current sensor is used to collect the current change signal of the DC bus that outputs the electric power signal and transmit it to the processor; The trigger signal is generated when the actuator reaches the position and sent to the processor; the proximity switch is used to generate a trigger signal when the actuator receives the position and is sent to the processor; the driver drives the connected DC motor to drive the actuator to form a linear motion. Provides six types of real-time data that can be used for intelligent judgment with preset data. A control method is also provided.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1

Hazardous waste intelligent supervision system and method

PendingCN114298632AStandardize Hazardous Waste ManagementStandardized managementLogisticsDetailed dataInternet of Things
The embodiment of the invention provides a hazardous waste intelligent supervision system and method. The system comprises an Internet of Things sensing module, an intelligent management module and a data analysis module. Wherein the internet-of-things sensing module is configured to monitor hazardous waste and the surrounding environment of the hazardous waste in real time, obtain hazardous waste data and environment sensing data and upload the data to the intelligent management module; the intelligent management module is configured to perform full-process management, warehouse-in and warehouse-out operation supervision and comprehensive management and control on the hazardous wastes and generate hazardous waste management and control information; and the data analysis module is configured to perform multi-dimensional comprehensive analysis and visual display on the hazardous waste management and control information and provide comprehensive and detailed data analysis for users. Through the technical scheme of the embodiment of the invention, the hazardous waste management is standardized, the management efficiency is improved, and the hazardous waste management and control risk is reduced.
Owner:QINGDAO HAIER INST OF IND INTELLIGENCE CO LTD +2

An automated storage and distribution system and method for aviation materials

ActiveCN112744501BVisual and controllable automated storage and distribution processImprove inventory guarantee rateStorage devicesAviationDistribution control
The invention discloses an automatic storage and distribution system and method for aviation materials. The automatic storage and distribution system includes an automatic storage and distribution control system and an aviation material warehouse. The automatic storage and distribution control system is connected to a computer terminal and is used for Real-time tracking of information, and precise control of each circulation link of aviation materials. The aviation material warehouse includes a first-floor activity area on the first floor and a second-floor activity area on the second floor above the first floor. The first-floor activity area includes a first-floor logistics activity area, a first-floor quality inspection receipt area and a storage activity area on the first floor, and the activity area on the second floor includes a quality inspection activity area on the second floor and a storage activity area on the second floor. The aviation material warehouse is used to store other aviation material parts except chemicals, paints, aviation material parts that need to be stored separately, and oversized, overweight and super high value aviation material parts. When the aviation material is stored in the aviation material warehouse , the aviation materials are transported to each station through each conveyor line, and after the quality inspection is completed, an identification label is generated, and then stored in a warehouse.
Owner:KUNMING KSEC LOGISTIC INFORMATION IND

Galvanizing lifting and pressing linkage device

The invention relates to a galvanizing lifting and pressing linkage device, and belongs to the field of automation. The galvanizing lifting and pressing linkage device comprises a main rack, wherein the main rack is arranged on a zinc pot in a squatting manner; a driving cylinder is arranged on the main rack; the driving cylinder is preferably arranged in the middle of the upper part of the main rack; and two linkage mechanisms are respectively arranged at two ends of the driving cylinder. The end of the driving cylinder is connected with a driving rack; two horizontal moving racks are respectively arranged at two ends of the driving rack and are matched with the two linkage mechanisms; and the two linkage mechanisms are arranged on the main rack. By cooperation of the driving cylinder and the two linkage mechanisms, pressing and lifting actions in hot galvanizing are realized, the pressing and lifting directions are opposite, and therefore, galvanizing feeding and discharging linkage is guaranteed.
Owner:刘佃福

A method and system for risk control and management of electric power distribution

The invention relates to a method and system for risk control and management of electric power distribution. The method includes: determining the substation data management and control strategy according to the GIS status information associated with the substation, determining the abnormal data index of the substation according to the substation data management and control strategy; determining the line data management and control strategy according to the GIS status information associated with the line, and determining the line according to the line data management and control strategy Abnormal data indicators; determine the transformer data management and control strategy according to the GIS status information associated with the transformer, determine the abnormal data indicators of the transformer according to the transformer data management and control strategy; determine the user data management and control strategy according to the status information of the line transformer associated with the user, and Determine the abnormal data indicators of users; conduct statistical analysis on the above data indicators, and obtain the abnormal data of the electronic handover of the station line change account. The technical solution provided by the invention can reduce the control risk of power distribution in the power system and improve the efficiency of abnormal processing.
Owner:ADVANCED SYST DEV

Maintenance plan safety checking method based on risk management and control platform

The invention discloses a risk management and control platform-based maintenance plan safety checking method. The method comprises the following steps of S1, assisting in generating monthly and daily maintenance plans based on a maintenance plan intelligent management and control system; s2, safety checking is carried out on the monthly and daily maintenance plans generated in the step S1; s3, analyzing the influence on the safe and stable operation of the power grid after the maintenance plan is implemented; and S4, importing the maintenance plan into a power grid risk management and control platform. The method can guarantee the safety and leakproofness of the maintenance plan, achieves the effect of guaranteeing the safe and stable operation of the power grid, reduces the management and control risk of the maintenance plan, facilitates the auxiliary monitoring and management of the power grid maintenance personnel, and solves the problems that a conventional power grid maintenance system is lack of leakproofness, is poor in safety, is difficult to guarantee the safe and stable operation of the power grid, and is poor in safety. The risk that the maintenance plan is difficult to manage and control is solved; and the power grid maintenance personnel are inconvenient to assist in monitoring and management.
Owner:STATE GRID CORP OF CHINA +2

Encryption transmission method for electric power material sampling inspection sample sealing information

The invention discloses an encryption transmission method for electric power material sampling inspection sample sealing information. Based on an electric power material sample sealing security architecture for a hidden image processing mode, the electric power material sample sealing security architecture comprising a hidden image and a sample sealing management system; according to the invention, the method includes inputting sample information through an APP; using an image unit which can reach a micron order at least for generating a random texture image with mass information in a square millimeter-scale area; using the hidden image sample sealing label for scanning and collecting sample sealing ID data; using the image recognition system to encrypt the hidden image by using an image algorithm and feed back the encrypted hidden image to the sealed sample management system; enabling the sealed sample management system to forward and transmit the hidden images to the sealed sample query system and the received sample query system, so statistics is performed through the administrator query system, identities of recognizers are tracked, data information is secret and cannot be recognized, copied and transmitted explicitly, and sealed sample code information is transmitted through the sealed sample management system.
Owner:JIANGSU ANFANG ELECTRIC POWER TECH

A hydraulic interlock control circuit

The invention discloses a hydraulic interlocking control loop which comprises a first hydraulic loop, a second hydraulic loop and a reversing valve III for simultaneously controlling hydraulic locks in the first hydraulic loop and the second hydraulic loop. A left oil outlet A of the reversing valve III is connected with control oil ports x of the hydraulic lock Ia and the hydraulic lock Ib in the first hydraulic loop and leakage oil ports y of the hydraulic lock IIa and the hydraulic lock IIb in the second hydraulic loop, and a right oil outlet B of the reversing valve III is connected with leakage oil ports y of the hydraulic lock Ia and the hydraulic lock Ib in the first hydraulic loop and control oil ports x of the hydraulic lock IIa and the hydraulic lock IIb in the second hydraulic loop. The interlocking function of the two hydraulic loops is achieved through a set of reversing valves, the problems of equipment damage and even personal injuries caused by electrical interlocking failure are effectively solved, and control risks are reduced. The number of the reversing valves needed in the loops is reduced, manufacturing cost is saved, the number of hidden troubles of oil leakage points is reduced, and the reliability of a system is improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A vehicle security control method and server

The invention discloses a vehicle safety control method and a server. Based on the status information of the current vehicle, judging and updating the validity of the state data and the control instruction of the corresponding vehicle in the mobile terminal application program, and judging the safety of the vehicle when the effective control instruction is executed according to the parking lot scene of the current vehicle, and determining the safety authentication level when the effective control instruction corresponding to the mobile terminal application program is activated according to thejudging result. The user obtains the operation information of the mobile terminal, determines the effective control instruction in the operation information, and activates the security authenticationof the security authentication level corresponding to the effective control instruction. After the authentication is successful, the effective control instruction is encrypted by the first key and sent to the vehicle-mounted terminal to control the vehicle to execute the corresponding operation. The invention is convenient for the user to control the vehicle in real time and effectively, and at the same time, the safety of the vehicle is ensured.
Owner:中科美络科技股份有限公司

EEPROM (Electrically Erasable Programmable Read-Only Memory)-based equipment compatibility device and method

PendingCN112835623AReduce operating costs and device control risksLabor savingProgram code adaptionBootstrappingProcess engineeringEEPROM
The invention relates to the field of hardware compatibility, in particular to an EEPROM-based equipment compatibility device and method. The device comprises a storage module, a control module and a transmission interface. The compatible device is used for carrying out operating system compatibility on each device, so that the problem that an operating system is incompatible when a hardware scheme is updated is avoided; and meanwhile, when the equipment accessories are insufficient in supply after sale, substitute materials can be flexibly selected for replacement, so that the operation cost and the device management and control risk are reduced, the related costs of manpower, working hours, materials and the like are correspondingly reduced, and the production benefits are improved.
Owner:CHENGDU VANTRON TECH CO LTD

Electrical control device for opening and closing of library door and control method thereof

The invention discloses an electrical control device for a library door and a control method thereof. The electrical control device for the library door comprises a first driving power supply input end, a second driving power supply input end, a direct current power supply input end, a first power supply switching circuit, a first control circuit, a second power supply switching circuit and a second control circuit, the first control circuit comprises a first switch circuit and a second switch circuit, the first power supply switching circuit is used for switching and supplying a direct-current power supply input by the direction current power supply input end for the first switch circuit and the second switch circuit, and controlling the conduction of the first switch circuit or the second switch circuit, the second control circuit comprises a third switch circuit and a fourth switch circuit, the second power supply switching circuit is use for switching and supplying the direct-current power supply input by the direct current power supply input end for the third switch circuit and the fourth switch circuit, and controlling the conduction of the third switch circuit and the fourthswitch circuit. According to the electrical control device for the library door, the redundancy of a system is improved, and the control risk is lowered.
Owner:深圳市研智电气技术有限公司

An optical communication circuit of functional modules and controllers in a dcs control system

The invention relates to the technical field of communication circuits and discloses an optical communication circuit of functional modules and controllers in a DCS (data transmission system) control system. The optical communication circuit is used for realizing data exchange between a first CPU (central processing unit) IC1 and a second CPU chip IC4. The optical communication circuit comprises a first transceiver IC2 and a second transceiver IC3 which are identical in structure, each of the first transceiver IC2 and the second transceiver IC3 comprises a signal receiving circuit, a signal sending circuit and a logic controller connected with the signal receiving circuit and the signal sending circuit. By adding an optical transceiving circuit, plug-in-free data transmission between functional modules, between the functional modules and the controllers and between the controllers are realized, quality of communication is guaranteed, electromagnetic interference is eliminated, service life is prolonged, communication speed is increased, hot plugging and unplugging of a communication module is achieved, operation quality of the DCS control system is guaranteed effectively, and risks in controlling is greatly lowered.
Owner:HUNAN THREE ARROWS AUTOMATION TECH
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