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39results about How to "Realize automatic switching function" patented technology
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Middleware self-management hot backup method and middleware self-management hot backup system in cluster
InactiveCN102843259ASupport automatic switching functionRealize automatic switching functionData switching networksWork statusClient-side
The invention discloses a middleware self-management hot backup method in a cluster. When failure of a main service node in a cluster system occurs, backup nodes can automatically sense the failure, and nodes in the backup state are automatically transferred to an election state; and based on internal multicast, one or multiple novel main service nodes can be automatically elected from all the backup nodes according to pre-specified rules, and client service node switching is notified. The invention further provides a system for achieving the middleware self-management hot backup method in a cluster. The system and a service middleware system are deployed in the same machine, the system is used to call interface of an operation system and acquire corresponding operation information of the process of service middleware according to the set information of the service middleware, and then according to returned information, the system is used to determine self working status namely main status or backup status or election status. In different working status, different logic is performed. According to the middleware self-management hot backup method and the middleware self-management hot backup system in cluster, the middleware self-management hot backup system can determine self-working status through multicast election rules; and on the basis of multicast interworking, backup and switching of the entire system can be scheduled and managed, and self-management of monitoring backup is achieved.
Owner:WUHAN DAMENG DATABASE
Interface switching circuit and device
ActiveCN103294629ARealize automatic switching functionSimplify program codingElectric digital data processingSignal conditioningInput/output
The invention belongs to the field of signal interfaces, and particularly relates to an interface switching circuit and a device. With the adoption of the interface switching circuit comprising a signal sending conditioning module and a signal receiving conditioning module, the signal sending conditioning module switches on and outputs a second high level signal or cuts off and outputs a low level signal according to a level signal output by a sending end of a full duplex interface module, and the signal receiving conditioning module cuts off and outputs a first high level signal or switches on and outputs the first high level signal or the low level signal opposite to a signal level output by a receiving-sending end of a half duplex interface module according to the level signal output by the full duplex interface module, so that the whole interface switching circuit achieves a function of automatically switching between a signal sending state and a signal receiving state, accomplishes switching between a full duplex interface and a half duplex interface, and has the advantages of program coding simplification and I / O (Input / Output) port saving.
Owner:SHENZHEN HONGDIAN TECH CORP
Ambulance vehicle oxygen device intelligent monitoring system and remote data obtaining method thereof
InactiveCN107065758ARealize automatic switching functionHigh-speed computingProgramme control in sequence/logic controllersControl signalOxygen tank
The present invention provides an ambulance vehicle oxygen device intelligent monitoring system and a remote data obtaining method thereof. The system is in communication connection with a mobile terminal and an upper computer through a server, and comprises: a gas pressure collection module configured to collect pressure parameters of an oxygen bottle through a pressure sensor; a Beidou / GPS dual-mode location module configured to collect the information of the position where an ambulance is located at present; a GPRS wireless communication module configured to send the collected data to the mobile terminal; a configuration touch screen monitoring module configured to perform recording operation of the dynamic monitoring, the starting and stopping control and the historical data of the system; a master control module configured to receive collected data and location information and send control signals to other modules; and a dynamic real-time early warning module configured to complete corresponding electrical motion according to the electrical signals sent by the master control module. The system takes the vehicle oxygen device as a monitoring object based on the internet of things technology, employs a PLC to control the solenoid valve of the oxygen bottle and employs a GPRS communication network to realize the intelligent monitoring of the ambulance vehicle oxygen device so as to ensure the convenience and safety of oxygen supply of the ambulance.
Owner:NANTONG UNIVERSITY
Analog card switching method based on NFC, terminal and computer storage medium
PendingCN111093180ARealize automatic switching functionAvoid troublePayment architectureShort range communication serviceComputer hardwareEmbedded system
The invention discloses an analog card switching method based on NFC. The analog card switching method based on NFC comprises: obtaining current user behavior data; matching the current user behaviordata with a preset user behavior data model, and determining a target type and target switching time of a to-be-switched simulation card; and generating a switching instruction according to the targettype and the target switching time of the analog card to be switched, and switching the type of the analog card to the target type according to the switching instruction when the target switching time is reached. The invention further discloses an analog card switching terminal based on NFC and a computer readable storage medium. According to the invention, an automatic switching function of theNFC simulation card is realized, troubles caused by manual switching are avoided, and the payment efficiency is improved.
Owner:SHENZHEN TCL NEW-TECH CO LTD
Milk and milk foam switching system for coffee maker
InactiveCN102160757ARealize automatic switching functionEasy to useBeverage vesselsControl systemMechanical engineering
The invention discloses a milk and milk foam switching system for a coffee maker, and the system provided by the invention comprises a control unit, a milk foam generator, a steam delivering pipeline for providing steam for the milk foam generator, a milk delivering pipeline for providing milk for the milk foam generator, and an air delivering pipeline for providing air for the milk foam generator, wherein a switching device for controlling the switching on and off of the pipelines is arranged on the air delivering pipeline and is electrically connected with the control unit, the switching device is controlled by the control unit to be switched on and off, when milk foams are made, the switching device is controlled by the control unit to be switched on and deliver air to the milk foam generator; and when hot milk is made, the switching device is controlled by the control unit to be switched off so as not to deliver air to the milk foam generator. In the invention, the control system is adopted to synchronously control the switching on and off of the pipelines so as to eliminate the original situation that the chosen making procedure and the finally finished product are inconsistent as a manual mechanical valve is not in correct position.
Owner:SUZHOU IND PARK KALERM ELECTRIC APPLIANCES CO LTD
Hydraulic hoist oil cylinder buffering device and operation method
ActiveCN106678125AAvoid shockGood throttling bufferFluid-pressure actuatorsVena contracta diameterEngineering
The invention relates to a hydraulic hoist oil cylinder buffering device and an operation method. The hydraulic hoist oil cylinder buffering device comprises a cylinder body; a bearing piston is installed in the cylinder body in a sliding fit mode, a piston rod is fixedly installed in the bearing piston, and a semi-piston and a buffering sleeve are fixedly installed at the end, located in the cylinder body, of the piston rod; a lower cover is installed at one end of the cylinder body, an annular groove is machined at the end, located in the cylinder body, of the lower cover, and a throttling orifice plate is assembled in the annular groove; the throttling orifice plate is sealed in the annular groove through a pressing cover, and a sealing pressing cover and a dirt scrapping ring are installed on the outer end face of the lower cover and are matched with the outer wall of the piston rod. The hydraulic hoist oil cylinder buffering device is convenient to machine and capable of being easily assembled into a high-speed door hydraulic hoist, so that the buffering effect during door closing is good, hindering on high-pressure oil during door opening is small, the door opening pressure is not increased, and the service lives of sealing parts and a hydraulic system are hardly influenced.
Owner:CSIC ZHONGNAN EQUIP
Adaptive front-lighting system (AFS) control system for intelligent turning of headlight of automobile
The invention relates to an adaptive front-lighting system (AFS) control system for the intelligent turning of a headlight of an automobile. The system is based on the control of a fuzzy neural network and is divided into two classes which are a hardware system and a software system. The hardware system comprises a master controller, an actuator, a sensor module and the like; and the software system comprises a master program and each subprogram. The invention particularly relates to the regulation of the horizontal and vertical directions of the light rays of a headlight, the realization of the function of automatic switching of far and near light, the preliminary aiming technology of the headlight and effective combination between the headlight and a global positioning system (GPS) navigation system. The structure and the curvature of a road in front are forecast as much as possible according to navigation information, and the light type of required lamplight is provided. According to the device disclosed by the invention, the intelligent control of the headlight of the automobile is realized. The AFS control system for the intelligent turning of the headlight of the automobile has the characteristics of energy saving, intelligence and long service life. The running safety of an automobile is increased. The AFS control system for the intelligent turning of the headlight of the automobile has better humanization and universality and has popularization value and use value.
Owner:丹阳众诚汽车部件科技有限公司
Switch reluctance machine sensor redundancy system and automatic switching method
PendingCN109742919AHigh protection levelRealize automatic switching functionEmergency protective circuit arrangementsDynamo-electric machinesMotor shaftInterface circuits
The invention belongs to the technical field of motor speed regulation, and in particular to a switch reluctance machine sensor redundancy system and an automatic switching method. The switch reluctance machine sensor redundancy system is characterized by comprising a magnet ring supporting member connected with a motor shaft, a magnet ring fixed to the magnet ring supporting member, a plurality of sensor plates located on the periphery of the magnet ring, an interface circuit board connected to the plurality of sensor plates through signal lines, Ns Hall sensors disposed on the sensor plates,signal output interfaces I disposed on the edges of the sensor plates, two signal input interfaces I disposed on both edges of the interface circuit board, and a signal output interface II disposed on the interface circuit board, wherein the signal output interface II is connected with a motor control board. The switch reluctance machine sensor redundancy system provided by the invention has a simple connection with the outside world, high anti-interference ability and small error, is suitable for use in harsh environments, can realize an automatic switching function of faulty sensors, and prolongs the trouble-free running time of a speed regulating system.
Owner:北京达科轩传动技术有限公司 +1
Train full-featured digital-analog hybrid intelligent broadcast control box
InactiveCN104253663AAchieve full-featured broadcast effectsGuaranteed uptimeTransmissionBroadcast systems controlComputer moduleLoudspeaker
The invention relates to a train full-featured digital-analog hybrid intelligent broadcast control box, in particular to a broadcast controller positioned in a cab in a train-mounted broadcast system. The broadcast controller comprises a UIC568 analog network path and an Ethernet digital network path, wherein the UIC568 analog network path mainly comprises a UIC568 analog network, an analog intercom and audio processing module, a voice switching matrix module, an audio amplifier module and a loudspeaker which are sequentially connected, and the Ethernet digital network path mainly comprises an Ethernet digital network, a central processor, an audio codec chip, a voice switching matrix module, an audio amplifier module and a loudspeaker which are sequentially connected. According to the technical scheme provided by the invention, the full-featured broadcast effect of a train in the digital communication network and the analog communication network is realized, the system operation is stable, the real-time performance is good, the network priority is self-defined, and the two networks can be switched automatically according to the situation.
Owner:SUZHOU HUAQI INTELLIGENT TECH
Electric spark voltage-stabilizing power supply
ActiveCN113708657AImprove work efficiencySimple structureDc-dc conversionElectric variable regulationControl signalEngineering
The invention discloses an electric spark voltage-stabilizing power supply, which relates to the technical field of voltage stabilization control, and comprises a power supply feedback switching control module, a power switch control module, a signal sampling and conditioning module, a main control module, a PWM (Pulse Width Modulation) driving module, a pulse chopping module and a communication module, the power supply feedback switching control module is used for providing a power supply, the power switch control module is used for generating pulse current, the signal sampling and conditioning module is used for sampling and processing voltage and current signals, the main control module is used for receiving signals and outputting control signals and driving signals, and the PWM driving module is used for outputting pulses. The pulse chopping module absorbs surge, and the communication module is used for communication. The electric spark voltage-stabilizing power supply effectively inhibits pulse surge, does not need a high-voltage breakdown loop, realizes electric spark power supply on-off and automatic switching of a power supply feedback point, adopts the operational amplifier circuit and the voltage and current detection circuit, improves the detection precision of voltage and current, and further improves the voltage stabilization output precision.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Automatic throw-in device of backup closing coil for 10kV vacuum breaker
ActiveCN104218666APowerful real-time data processing capabilityImprove linearityEmergency power supply arrangementsBurning outOperating environment
The invention discloses an automatic throw-in device of a backup closing coil for a 10kV vacuum breaker. The automatic throw-in device comprises a backup coil auto-throw-in loop, an original closing loop, a control power source and a measurement and control device. The control power source comprises a control power negative end and a control power positive end. The backup coil auto-throw-in loop is characterized in that a control relay A is serially connected between an original closing coil and the control power negative end on the basis of the original closing loop; a series loop is parallelly connected between a normally closed assistant contact QF and the control power negative end; the series loop comprises the backup closing coil and a control relay B; the original closing loop is not changed. The backup closing coil is parallelly connected on the basis of the original closing coil, the backup closing coil can be automatically switched after an original brake coil burns out, power supply reliability is improved, service life of the closing coil is prolonged, and a closing coil operating environment is improved.
Owner:ZAOZHUANG POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1
Numerically controlled edge milling machine and automatic switching method thereof
ActiveCN104551833ASolve the problem of difficulty in automatic switching and low efficiencyImprove machining accuracyMilling equipment detailsMetal working apparatusEngineeringPRESSURE FEET
Owner:SUZHOU VEGA TECH CO LTD
Dual battery pack switching circuit for electric vehicles
ActiveCN104022563BRealize automatic switching functionIncrease the level of automationEnd cell switching arrangementsMicrocontrollerMicrocomputer
The invention discloses a dual-battery-pack switching circuit used for electric vehicles. The dual-battery-pack switching circuit used for the electric vehicles comprises a first battery pack, a second battery pack and a power source output terminal which is electrically connected with the first battery pack and the second battery pack. The dual-battery-pack switching circuit used for the electric vehicles is characterized in that the first battery pack is electrically connected with an analog input terminal of a single-chip microcomputer through an ADC sampling circuit; the first battery pack is electrically connected with a power source terminal of the single-chip microcomputer through a 5V voltage stabilizing circuit; the second battery pack is electrically connected with a signal input terminal of the single-chip microcomputer through a voltage detection circuit; a fourth MOS transistor is arranged between the first battery pack and the power source output terminal; a sixth MOS transistor is arranged between the second battery pack and the power source output terminal; a signal output terminal of the single-chip microcomputer is electrically connected with the fourth MOS transistor through a drive circuit; the signal output terminal of the single-chip microcomputer is electrically connected with the sixth MOS transistor through an isolation drive circuit. Compared with a traditional manual control mode, the dual-battery-pack switching circuit used for the electric vehicles has a higher automatic switching level.
Owner:TIANJIN JINMITE ELECTRONICS
Method for realizing automatic detection and switching of double network ports of scheduling terminal
ActiveCN110380910AImprove stability and reliabilityRealize automatic detection functionData switching networksWork statusSoft switch
The invention provides a method for realizing automatic detection and switching of double network ports of a scheduling terminal. The method comprises the following steps: creating four global variables, namely a network port 1 enabling state value, a network port 2 enabling state value, a network card actual state value and an automatic switching flag bit; when automatic switching is carried out,setting the flag bit of automatic switching to be 1, judging the working state of the network port by reading the actual state value of the network card, and when manual switching is carried out, theflag bit of automatic switching is set to be 0, starting manual switching of the network port. According to the method, if the main network port goes wrong can be efficiently and quickly detected, the main network port can be switched to the standby network port in time, and the registration process initiated by the scheduling terminal to the soft switch is completed, so that the basic call and service functions of the scheduling terminal are better realized, and the stability and reliability of a scheduling terminal system are improved.
Owner:HEBEI FAREAST COMM SYST ENG
Courseware switching method and device, computer equipment and storage medium
PendingCN113342240AImprove switching efficiencySolve the problem of manually switching coursewareImage analysisGenerating/distributing signalsComputer equipmentEngineering
The invention relates to a courseware switching method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a courseware image from a corresponding courseware source access port according to a preset configuration rule under the condition that a device is accessed to a courseware source, and performing image change detection on the courseware image to obtain a corresponding detection result, wherein the detection result comprises change and no change; if the detection result is that the courseware image is changed, judging whether the current scene is a courseware scene or not; if the current scene is the courseware scene, not switching the scene, and resetting the courseware switching-out timer, wherein the courseware cut-out timer is used for realizing an automatic courseware cut-out function; and if the current scene is not the courseware scene, starting the courseware switching-out timer, switching out the current scene, switching in the courseware scene, and marking the current scene as the courseware scene. By adopting the method, the courseware switching efficiency can be effectively improved.
Owner:深圳市捷视飞通科技股份有限公司
Voltage monitoring system based on FPGA technology and verification method
InactiveCN105403847AImprove output accuracyReduce labor intensityElectrical measurementsAutomatic controlEmbedded system
The invention belongs to the technical field of electric power, especially relates to one of the power system control technologies, and specifically provides a voltage monitoring system based on FPGA technology and a verification method. The voltage monitoring system comprises a monitoring server, a PT conversion module, and a display, a voltage monitor and a standard device are connected with the monitoring server via GPRS network cables, a relay device is connected between the other terminals of the voltage monitor and the standard device, and the standard device is connected with the monitoring system display. The voltage monitoring system is a 0.05-grade multifunctional apparatus and instrument intelligent remote verification system based on the FPGA, the labor intensity of on-site operation personnel can be greatly reduced, the on-site operating environment is improved, the automatic control level of the detection of voltage monitoring equipment is improved, and the safety index of on-site operation is increased.
Owner:STATE GRID CORP OF CHINA +1
Coal mine conveying energy-saving system
ActiveCN106144489ARealize energy saving functionNormal operation does not affectControl devices for conveyorsPower flowCurrent sensor
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
Intelligent bed tool capable of automatically converting space
InactiveCN108968496ASolve the contradiction between population and housing spaceAchieve electric propulsionSofasBedsAutomatic controlPopulation
The invention relates to an intelligent bed tool capable of automatically converting the space. The intelligent bed tool comprises parts such as a bed body, a movable cabinet body, a desk plate, a touch control panel, a controllable alarm clock, a bed head panel lifting device, an electric telescopic rod, controllable projection cloth, a central processor, a sliding mechanism and the like. Throughthe conversion of the cabinet body and the bed body, the automatic switching function of spaces of a living room, a bedroom and a home office can be realized; the problem of conflict between population and living house space can be solved. Through the designed cabin body structure, the electric pushing and smooth conversion of the cabinet body can be realized; in addition, articles such as quiltson the bed do not need to be cleared away in each switching state. A set of lazy man getting up system is designed; the help is provided for people with getting up difficulty. The designed bed tool has the internet of things function; through mobile phone software, the functions of room state switching, alarm clock setting and the like can be remotely controlled; the remote control and automaticcontrol on furniture can be realized.
Owner:皇甫瑜珂
System and method for controlling automatic switch of multi-channel video signals
ActiveCN105100705ASmooth screenRealize automatic switching functionTelevision system detailsColor television detailsThrough transmissionVoltage
The invention discloses a system and method for controlling automatic switch of multi-channel video signals. The system comprises a wireless video transmitting module, a plurality of video receiving modules, a plurality of signal extracting modules, a plurality of signal processing modules, a control unit, an execution unit and a video display; the wireless video transmitting module is used for transmitting wireless video signals; the video receiving modules are used for receiving the wireless video signals and transmitting the video signals into the signal extracting modules; the signal extracting modules are used for outputting voltage signals; the signal processing modules are used for processing the voltage signals and transmitting the processed voltage signals to the control unit; the control unit is used for judging the signals, outputting control signals and transmitting the control signals to the execution unit; and the execution unit is used for controlling the video display through transmission of the control signals, so that the video display displays a clear video. By adopting the scheme, continuous signals can be kept; and the problems of unclear video signals and the like due to poor wireless electromagnetic wave signals can be solved.
Owner:同城在线(深圳)传媒有限公司
Automatically-controlled screen cleaning device used for charging system
InactiveCN113102427ARealize automatic cleaning functionRealize automatic control functionFlexible article cleaningPhotoresistorElectromagnet
The invention relates to the technical field of auxiliary equipment of charging systems, and discloses an automatically-controlled screen cleaning device used for a charging system. The automatically-controlled screen cleaning device used for the charging system comprises a shell, wherein a working screen is arranged in the shell, photoresistors are fixedly connected with both sides of the working screen, piezoresistors are fixedly connected with the outer sides of the photoresistors, limiting rods are fixedly connected with both the top and the bottom of the shell, and a cleaner is fixedly connected with the inner sides of the limiting rods. According to the automatically-controlled screen cleaning device used for the charging system, through mutual cooperation of electromagnets and a permanent magnet, when the electromagnets are powered on, the electromagnets generate a magnetic field, the electromagnets and the permanent magnet repel each other due to same magnetism of opposite faces, the cleaner is driven to overcome friction resistance on the cleaner to move, primary cleaning is conducted through movement of the cleaner, an automatic product cleaning function is achieved, then movement of the cleaner is limited through mutual cooperation of the limiting rods and the cleaner, and thus the cleaner stops when moving to the other end, so that an automatic product control function is achieved.
Owner:泗县东品西尚网络科技有限公司
Air compressor lubricating and cooling system
InactiveCN106089755AGood energy saving effectGuaranteed safe operationEngine controlPump controlContactorWater supply
The invention discloses an air compressor lubricating and cooling system, which comprises a first water pump and a second water pump, and is characterized in that the first water pump and the second water pump are connected with a frequency converter through a line, the frequency converter is connected with a PI controller through a line, the PI controller is connected with a water pressure sensor located at a water supplying pipeline of the first water pump and the second water pump through a line, an electrical main circuit of a control system is that a power line is respectively connected to the frequency converter through a first breaker, and connected to one end of a second alternating current contactor through a second breaker. The air compressor lubricating and cooling system uses the frequency converter to drive water pumps in a constant pressure water supply mode so as to adapt to different working condition requirements, and a better energy-saving effect can be achieved; the air compressor lubricating and cooling system can realize an automatic switching function, ensure the safe operation of a production line, and overcome threat of failures of water pumps or an electronic control system to the production line in operation.
Owner:QINGDAO ALLITE AUTO TECHNIC
Thermal imager expansion mirror device
PendingCN110793646AImprove experienceRealize automatic switching functionRadiation pyrometryMedicineEngineering
The invention discloses a thermal imager expansion mirror device. The thermal imager expansion mirror device comprises an auxiliary mounting part and an expansion mirror assembly, wherein the auxiliary mounting part is connected to a thermal infrared imager (8); the expansion mirror assembly comprises an expansion mirror (1), is detachably mounted to the thermal infrared imager (8) through the auxiliary mounting part, and provides specification parameter information of the expansion mirror (1) for the thermal infrared imager (8) in a mounting state. The thermal imager expansion mirror device can automatically provide expansion mirror identification information for thermal imager equipment. Therefore, after the expansion mirror is mounted, the thermal imager equipment can automatically identify the type of the additionally mounted expansion mirror, and an automatic switching function is realized.
Owner:HANGZHOU HIKMICRO SENSING TECH CO LTD
Auxiliary device for teaching management
InactiveCN113724540ARealize automatic switching functionConvenient teaching demonstrationElectrical appliancesEngineeringMechanical engineering
Owner:ZHEJIANG AGRI BUSINESS COLLEGE
Optical fiber penetrating disc capable of realizing automatic switching of multiple paths of optical fibers
PendingCN113640919AImprove applicabilityEasy to controlCoupling light guidesTesting fibre optics/optical waveguide devicesEngineeringOptical fiber connector
The invention provides an optical fiber penetrating disc capable of realizing automatic switching of multiple paths of optical fibers, which comprises a shell, a rotating disc, a base, a driving device, a control module and an encoder, and is characterized in that the shell is arranged on the base, the rotating disc is rotatably arranged on one side of the shell, a first optical fiber connector is detachably arranged on the other side of the shell, the rotating disc is detachably provided with a plurality of second optical fiber connectors corresponding to the first optical fiber connectors, the encoder is arranged on the rotating disc and is used for judging the position of the rotating disc, the control module and the driving device are arranged in the base, and the driving device is in driving connection with the rotating disc. The driving device is used for driving the turntable to rotate so that the second optical fiber connector is connected with the first optical fiber connector to form a conducting optical path, and the driving device and the encoder are electrically connected with the control module. According to the optical fiber penetrating disc capable of achieving automatic switching of the multiple paths of optical fibers, automatic switching of the multiple paths of optical fibers can be achieved, and the efficiency of optical fiber data measurement is improved.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
Automatic switching device and method for optical fiber link of automatic switch of power system distribution network
PendingCN110535709AMake sure not to open the loopMake sure the adjustment ring failsFault recovery arrangementsData switching networksFiberElectric power system
The invention relates to an automatic switching device and method for an optical fiber link of an automatic switch of a power system distribution network. The device comprises a first optical switch and a second optical switch on receiving and transmitting pigtails of FTU, TTU and DTU site switches, the first optical switch is connected with a first switch, the second optical switch is connected with a third switch, and the second switch is arranged between the first optical switch and the second optical switch. According to the invention, the problems of manually going to the site for temporary fiber jumping and connecting optical fiber links of upper and lower stations are solved, operation and maintenance personnel do not need to go to the site for disconnecting the temporary fiber jumping, an automatic optical fiber link switching function of the distribution network automatic switch is realized, and the problem of endangering three-remote signal interruption of a plurality of FTUs, TTUs and DTUs is effectively prevented.
Owner:YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
A control method for multi-channel video signal automatic switching control system
ActiveCN105100705BRealize automatic switching functionThere will be no problems such as unclear video signalsTelevision system detailsColor television detailsControl systemWireless video
Owner:同城在线(深圳)传媒有限公司
Handover method, device, vehicle-machine, mobile terminal and readable storage medium
ActiveCN108243278BImprove call experienceAvoid interruptionSubstation equipmentHandoverReal-time computing
The present invention proposes a switching method, device, vehicle machine, mobile terminal and readable storage medium, wherein the switching method of the call mode includes: establishing a communication authentication relationship with the mobile terminal after detection, and establishing a communication channel connection with the mobile terminal At this time, the switching operation of playing the call voice from the mobile terminal to playing the call voice by the vehicle machine is not performed; when a trigger instruction for the switching operation is generated, the switching operation is triggered in real time, wherein the mobile terminal is in a call state. Through the technical solution of the present invention, on the one hand, during the user’s call, after completing the automatic matching and connection with the car machine, the mobile terminal still maintains the call, which avoids the call being interrupted and ensures the smoothness of the call. On the one hand, on the premise that the handover operation is not triggered, the mobile terminal still maintains the call, and thus the privacy of the call can be maintained, thereby helping to protect the privacy of the user from being leaked.
Owner:BEIJING CO WHEELS TECH CO LTD
Cylinder buffer device and operating method for hydraulic hoist
ActiveCN106678125BAvoid shockGood throttling bufferFluid-pressure actuatorsVena contracta diameterHigh pressure
The invention relates to a hydraulic hoist oil cylinder buffering device and an operation method. The hydraulic hoist oil cylinder buffering device comprises a cylinder body; a bearing piston is installed in the cylinder body in a sliding fit mode, a piston rod is fixedly installed in the bearing piston, and a semi-piston and a buffering sleeve are fixedly installed at the end, located in the cylinder body, of the piston rod; a lower cover is installed at one end of the cylinder body, an annular groove is machined at the end, located in the cylinder body, of the lower cover, and a throttling orifice plate is assembled in the annular groove; the throttling orifice plate is sealed in the annular groove through a pressing cover, and a sealing pressing cover and a dirt scrapping ring are installed on the outer end face of the lower cover and are matched with the outer wall of the piston rod. The hydraulic hoist oil cylinder buffering device is convenient to machine and capable of being easily assembled into a high-speed door hydraulic hoist, so that the buffering effect during door closing is good, hindering on high-pressure oil during door opening is small, the door opening pressure is not increased, and the service lives of sealing parts and a hydraulic system are hardly influenced.
Owner:CSIC ZHONGNAN EQUIP
CNC edge milling machine and automatic switching method thereof
ActiveCN104551833BImprove machining accuracyImprove processing efficiencyMilling equipment detailsMetal working apparatusEngineeringFoot protector
The invention discloses a numerically controlled edge milling machine and an automatic switching method thereof. The numerically controlled edge milling machine comprises a hairbrush, a hairbrush sleeve, a hairbrush sleeve transfer disc, a pressure foot, a pressure foot sleeve, a pressure foot sleeve transfer disc, a main shaft, a scrap-absorbing cover and a cylinder, wherein the hairbrush sleeve and the hairbrush are fixed together; the hairbrush sleeve transfer disc is used for placing the hairbrush sleeve; the pressure foot and the pressure foot sleeve are fixed together; the pressure foot sleeve transfer disc is used for placing the pressure foot sleeve; the main shaft can move up and down; the scrap-absorbing cover can move up and down with the main shaft; the cylinder can act on the hairbrush sleeve and the pressure foot sleeve; in the initial state, the hairbrush sleeve is fixed to the scrap-absorbing cover; after the main shaft is downwards moved to a selected place and the hairbrush sleeve departs from the scrap-absorbing cover, the main shaft can be fixed to the hairbrush sleeve transfer disc so that the hairbrush sleeve departs from the scrape-absorbing cover; the main shaft moves upwards, the scrap-absorbing cover can be moved to the position where the scrap-absorbing cover is jointed to the pressure foot sleeve, and the cylinder enables the pressure foot sleeve to be fixed to the scrap-absorbing cover to switch the pressure foot sleeve. According to the numerically controlled edge milling machine and the automatic switching method thereof, the pressure foot and the hairbrush can be automatically switched.
Owner:SUZHOU VEGA TECH CO LTD
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