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H-bridge driving control circuit of motor
InactiveCN102005990AImprove anti-interference abilityEasy to implementField or armature current controlDc motor startersInput controlEngineering
The invention relates to an H-bridge driving control circuit of a motor, which comprises an H-bridge driving circuit, a driving control unit, an anti-interference unit and a protection unit, wherein in the H-bridge driving unit, two diagonal branch circuits are formed by four switching tubes; the driving control unit is used for converting an input control signal into a suitable voltage for controlling to switch on the corresponding switching tube; the anti-interference unit is used for preventing the upper arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state; and the protection unit is used for preventing the lower arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state. The H-bridge driving control circuit of the invention prevents the P switching tube which cannot be switched on from being switched on due to starting of the motor or burr generated by transient large current, improves the anti-interference capacity of the circuit, and can rapidly switch off the corresponding N-channel switching tube when the circuit control signal is disordered or goes wrong, so that the circuit has through protection function. The whole driving control circuit is driven by a single power supply, is easy to implement and has a simple structure, and the reliable work of the circuit is further guaranteed.
Owner:SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
Information collection apparatus, informaton collection method, information collection program, recording medium containing information collection program, and information collection system
InactiveCN1539124AHave controlTelemetry/telecontrol selection arrangementsVehicle position/course/altitude controlCollection systemMonitoring system
Owner:ORMON CORP
Coolant liquid external circulating system for engine bench test
The invention is to protect the coolant extrinsic cycle system of the engine bench test. The engine water-yielding is educed the cooling liquid pipe which returns to the engine infall after passing a heat exchanger to form a closed circle. The cool end pipe of the heat exchanger is installed with the valve which is closed. The temperature sensor is set in the engine water-yielding and the signal line is connected to the controlling unit which the controlling line is connected with the valve and the alarming device. The controlling unit is set with two temperature value, one is the highest cooling liquid temperature endured by the engine and the other is the proper cooling liquid temperature of the engine. The invention can shorten the warming time of the engine and improve the quality and reliability of the engine bench test.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Preparation method for papermaking dry-strength agent with temporary wet-strength improving effect
InactiveCN105384870AEasy to enhance performanceHigh dry strength performanceReinforcing agents additionGlyoxalWet strength
The invention discloses a preparation method for a papermaking dry-strength agent with temporary wet-strength improving effect. Conventional hydroformylated polyacrylamide dry-strength agents are normally prepared by preparing cationic polyacrylamide at first and then carrying out hydroformylation by using glyoxal, wherein the process of hydroformylation is difficult to control, and gelation occurs if control is improper. The preparation method provided by the invention employs N-methylolacrylamide as a main monomer and subjects N-methylolacrylamide, acrylamide, cationic monomer and anionic monomer to free radical solution copolymerization so as to prepare the papermaking dry-strength agent with a macromolecular chain containing a great number of active hydroxymethyl groups. The papermaking dry-strength agent prepared in the invention has the advantages of easiness in adherence and adsorption, effective resistance to interference by anionic garbage, high dry-strength improving effect on paper and certain temporary wet-strength improving effect on the paper. The papermaking dry-strength agent is simple to synthesize, does not contain organochlorine, is friendly to environment and has good storage stability.
Owner:ZHEJIANG TRANSFAR WHYYON CHEM
Method, system and device for carrying out service relay for first standard terminal
ActiveCN104935375AImprove network coverage performanceSave money and effortRadio transmission for post communicationWireless communicationService providerWorkload
The invention discloses a method, system and device for carrying out service relay for a first standard terminal, and relates to the technical field of wireless communication. According to the embodiment of the invention, a first standard / second standard dual-mode terminal is selected for carrying out service relay for the first standard terminal to a second standard base station, the first standard / second standard dual-mode terminal reports the first standard terminal and relay information thereof to the second standard base station so as to enable the second standard base station to distributed relay configuration information used by the service relay based on the reported information, and the first standard / second standard dual-mode terminal is communicated with the first standard terminal based on the relay configuration information, so that relay of devices different in standard is realized, conventional relay nodes are not needed, the network covering performance of a first standard user is improved under the condition that the disposition scope of a first standard base station is limited, and the cost and the workload of a service provider are saved. In addition, the second standard base station has a control force over the whole relay process, and the stability and the performance of the system are ensured.
Owner:CHINA TELECOM CORP LTD
Method for acquiring and updating configuration for network equipment
InactiveCN102722468AOmit authenticationOmit communication encryptionDigital computer detailsProgram loading/initiatingInformation networksEngineering
The invention discloses a method for acquiring and updating configuration for network equipment. The method is divided into a manned management mode and an unmanned management mode. The manned management mode comprises the following steps of: detecting the network equipment through a network equipment management program in a computer terminal, and sending a basic information query instruction to the network equipment through universal serial bus (USB) connection, wherein the basic information comprises but is not limited in media access control (MAC) address, equipment model and information of marking equipment identity of a serial number; after the network equipment receives the instruction, sending the basic information in the step A2 to the computer terminal; and after the computer terminal receives the basic information of the network equipment and processes the information, presenting the information to an administrator and the like through a user interface of a program. Identity authentication and communication encryption can be eliminated, and an internet protocol (IP) is not required to be configured, so the method is very convenient and simple.
Owner:CHENGDU RUILIAN ZHIJU ELECTRONICS TECH
Four-legged bionic robot platform based on biological characteristics
ActiveCN108927796AImprove adaptabilityImprove anti-interference abilityProgramme-controlled manipulatorJointsTerrainAnti jamming
The invention discloses a four-legged bionic robot platform based on biological characteristics. The four-legged bionic robot platform comprises a trunk and four lower limbs. The four lower limbs areevenly and symmetrically distributed at the four corners of the lower portion of the trunk, and the structures of the four lower limbs are identical. The trunk comprises four driving units, a trunk bottom plate used for supporting the driving units, a depth visual apparatus and a laser radar. The lower limbs comprise ankle joints, foot soles and leg parts. The upper ends of the leg parts are fixedly connected with the driving units, and the lower ends of the leg parts are rotatably connected with the upper ends of the ankle joints. The lower ends of the ankle joints are rotatably connected with the upper ends of the foot soles. According to the four-legged bionic robot platform, the adaptability and anti-jamming ability of a bionic leg-foot-type robot to different terrains can be improved,the stability and reliability of making contact with the ground are enhanced, a robot deep vision technology is fused to make a reasonable path plan on the travelling track of the robot, a laser radar technology is fused to further enhance the interaction ability between the robot and the environment, the mechanical complexity of the trunk and the lower limbs is simplified, the control difficultyis lowered, and the control accuracy is improved.
Owner:CHANGAN UNIV
Cluster controller for etching devices
ActiveCN1959569AEffective controlEasy to controlElectric programme controlAutomatic controlProcess module
A cluster controller of etching machine consists of input unit for inputting data into controller, storage unit for storing data, output unit for displaying monitor state, CPU for executing control information, transmission unit being used to connect with etching machine and process module for outputting control information to etching machine according to condition required by process flow stored in said module.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD +1
Preparation method of Ca-P-Sn composite coating layer on surface of magnesium alloy
ActiveCN105200413ACompact structureStrong adhesionMetallic material coating processesTin dioxideMaterials science
The invention discloses a preparation method of a Ca-P-Sn composite coating layer on the surface of magnesium alloy. The preparation method comprises the steps of taking sodium EDTA (Ethylene Diamide Tetraacetic Acid), calcium nitrate, monosodium phosphate, nano tin oxide of which the grain size is 50 to 70 nm and distilled water as raw materials to prepare a precursor solution; then soaking a to-be-processed magnesium alloy substrate in the precursor solution in a hydrothermal reaction kettle, regulating the pH (Potential of Hydrogen) value to be 2.0 to 4.0 by strong base, adding the nano tin oxide, and preparing the Ca-P-Sn composite coating layer, of which the thickness is 50 to 80 mum, on the surface of the magnesium alloy by adopting a hydrothermal method, namely, doping a Ca-P coating layer by utilizing tin oxide. Compared with the prior art, the preparation method disclosed by the invention has the advantages that the technology is simple, flow is short, the control is easy, the production cost is low, the obtained coating layer is compact in structure, strong in adhesion and good in anti-corrosion performance, and the like; an obtained product not only can be used for carrying out anti-corrosion treatment on a material for a magnesium alloy structure, but also is suitable for being applied to the field of medical magnesium alloy.
Owner:SHANDONG UNIV OF SCI & TECH
Full-aqueous release coating for electrochemical aluminum hot stamping foil and preparation method of coating
ActiveCN110105861ASolve concentrationSolve quality problemsWax coatingsDuplicating/marking methodsHot stampingSolvent
The invention provides a full-aqueous release coating for an electrochemical aluminum hot stamping foil and a preparation method of the coating. When a release coating in an alcohol-water system is inuse, because the volatilization of ethyl alcohol and demulsification of a wax emulsion cause the quality defects such as concentration rising, which affects the release tightness of a product, and the utilization rate of the release coating in the alcohol-water system is low, a large amount of waste is caused. The full-aqueous release coating is prepared from, by weight, 80-98 parts of purified water, 1-5 parts of an aqueous polyurethane emulsion, 0.1-1 part of an aqueous acrylic emulsion, 0.1-1 part of a polyurethane crosslinking agent, 1-5 parts of an aqueous wax emulsion, 0.1-0.5 part of awetting agent and 0.1-1 part of a defoaming agent. The release coating improves the water resistance, solvent resistance, temperature resistance and mechanical properties of coating film; the recoating performance of the release coating is good, and coating requirements of subsequent colored layer coating can be met; the release effect is excellent, a hot stamping layer is transferred completely,and the release tightness is adjusted by adjusting the addition amount of a release agent.
Owner:云南玉溪东魅包装材料有限公司
Air conditioner AC machine driving method and circuit
ActiveCN1976214AReduce manufacturing costVersatilitySpace heating and ventilation safety systemsLighting and heating apparatusDriver circuitMotor drive
A method for driving AC motor of air-conditioner includes calculating pulse width of zero cross detection when power supply is initialized, holding low level at fan driving port and calculating actual rotary speed of motor and duty ratio outputted by driving signal when motor rotary speed feedback is interrupted, energizing motor driving signal output and outputting high or low level by motor driving signal port when drop-out edge of zero cross detection is interrupted.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD
Large-stroke high-rigidity series-parallel hybrid machine tool with reconfigurable characteristic
ActiveCN107443173AHave controlHigh attitude adjustment abilityFeeding apparatusLarge fixed membersControl engineeringProcess engineering
The invention relates to a large-stroke high-rigidity series-parallel hybrid machine tool with the reconfigurable characteristic. The large-stroke high-rigidity series-parallel hybrid machine tool comprises a fixed working table, an X-direction movement unit, a Y-direction movement unit, a lifting adjusting device, three driving branches with same structures, a movable platform and a main shaft head. A special clamp is installed on the fixed working table, and the X-direction movement unit and the Y-direction movement unit are each composed of a rack and a servo driving unit. The lifting adjusting device comprises three passive branches with the same structures and a middle active branch, the structure dip angle of a parallel structure can be adjusted, and the parallel structure has the reconfigurable characteristic. The three driving branches with the same structures are connected with the lifting adjusting device and the movable platform, and one-dimensional movement and two-dimensional movement can be achieved through the space closed loop parallel mechanism. The large-stroke high-rigidity series-parallel hybrid machine tool has the beneficial effects of good structural symmetry, high rigidity, large working space, high posture capacity, good in dynamic performance and the like; meanwhile, the beneficial effects of a series machine tool and a parallel machine tool are achieved at the same time; and the large-stroke high-rigidity series-parallel hybrid machine tool can be used for five-axis machining of large heterogeneous part complex surfaces.
Owner:BEIJING JIAOTONG UNIV
Encapsulated, flameproof, not hermetically sealed, rotationally symmetrical high-performance spark gap
InactiveCN101189770AImprove cooling effectLarge heat capacitySpark gaps with auxillary triggeringOvervoltage arrestors using spark gapsMetalElectrical contacts
The invention relates to an encapsulated, flameproof, not hermetically sealed, rotationally symmetrical high-performance spark gap with two main electrodes spaced apart opposite each other, a metal outer housing, at least one trigger electrode, a gas or plasma cooling space, surrounded by the outer housing, and external electrical contacts for the main electrodes, preferably arranged on the end face. According to the invention, the cooling space comprises a coaxial arrangement of an inner cup and an outer cup, one of the main electrodes being formed as a hollow-cylindrical expulsion electrode and reaching into the inner cup. Also provided on the open side of the cup arrangement is a supporting ring, engaging laterally around the expulsion electrode. The supporting ring is connected to the outer cup in a flameproof manner, in particular with nonpositive and / or positive engagement. The outer cup of the coaxial arrangement has lateral gas outlet openings. Provided between the inner and outer cups there is at least one gas cooling duct. Between the outer wall of the outer cup and the inner wall of the outer housing there is a further, gap-like gas cooling duct. The gas cooling ducts themselves follow an altogether meandering path.
Owner:DEHN SOHNE GMBH CO KG
Multi-purpose electric wire winding driving device
InactiveCN110642087AAvoid negative effectsAchieve fixationFilament handlingGear wheelElectric machine
The invention discloses a multi-purpose electric wire winding driving device which comprises a main body shell. According to the multi-purpose electric wire winding driving device, a power source, namely a driving motor is utilized, the necessary rotating function during winding can be achieved, the fixing effect on a winding wheel during electrical wire winding can also be achieved, fixing has the controlling effect, the maximum rotating strength can be controlled autonomously, the effect of controlling the longest guiding wire winding length is also achieved, control performance is high, thepart utilization rate is high, furthermore, the multi-purpose electric wire winding driving device is provided with a gear combination type rotating state dividing-into-two mechanism, a driving statecan be differentiated, thus the driving effects of different functions are achieved, in addition, the multi-purpose electric wire winding driving device is provided with a gear engagement type rotating speed increasing mechanism, the rotating speed can be increased, the air pressure is enhanced, in addition, the multi-purpose electric wire winding driving device is provided with an annular arrayspiral spring abutting type maximum rotating strength controlling mechanism, the maximum resistance during rotating can be controlled, and the negative effects caused by excessively-large air power assistance on the driving motor are effectively prevented.
Owner:胡立泉
Rotary tiller
PendingCN109417871ASimple structureLow costAgricultural machinesTilling equipmentsDrive motorEngineering
A rotary tiller belongs to the technical field of rotary tillers. According to the rotary tiller, the interior of a machine body is provided with a speed-changing direction-changing transmission mechanism, a 360-degree rotating crawler drive mechanism, and a machine speed-reducing box in a cooperative mode. The interior of the machine body is also provided with an engine and a pump body assembly in a cooperative mode, wherein the pump body assembly includes a first variable pump, a second variable pump, and a third variable pump, the third variable pump is in control connection with a machinemotor, and the first variable pump and the second variable pump are connected to left and right crawler-driving motors, respectively. The rotary tiller has a two-stage speed regulation function and ahigh transmission efficiency, and can realize 360-degree rotary reversal in situ; a speed-changing latch handle transmission mechanism has three gear positions, that is, a forward gear position, a neutral gear position and a reverse gear position, and through position control of an entire direction-changing transmission assembly, control on the interiors of the variable pumps is realized, and thespeed of the rotary tiller can be changed; and with the direction-changing transmission mechanism, position change of a crawler-controlled variable pump connection seat can be realized through a smallrotation amount, and thus differential-speed direction change can be realized.
Owner:ZOOMLION HEAVY MACHINERY ZHEJIANG CO LTD
Intelligent electric welding clamp workbench for body in white
InactiveCN102451967AEasy to controlHave controlWelding/cutting auxillary devicesAuxillary welding devicesAtmospheric pressureSpot welding
The invention discloses an intelligent electric welding clamp workbench for a body in white. The intelligent electric welding clamp workbench comprises a bottom plate, wherein the upper surface of the bottom plate is provided with an operation board, a pneumatic clamping device and a control box; the operation board is electrically connected with a control box; a pressure sensor and an electromagnetic valve bank are arranged on the pneumatic clamping device; and the pressure sensor and the electromagnetic valve bank are connected to the control box respectively. The intelligent electric welding clamping workbench has the characteristics of simple structure, reasonable design, capability of conveniently realizing and meeting the requirements of a spot-welding clamping process, intelligence, automation, networking and easiness for extending.
Owner:XIHUA UNIV +1
Portable adsorption type natural gas recovery device and method
InactiveCN106085529ASmall pressure fluctuationsStable jobGas treatmentDispersed particle separationBuffer tankDesorption
The invention relates to a portable adsorption type natural gas recovery device and method. The device consists of a gas collecting module, a machine pump module, an adsorption module and a control module, wherein each of the modules comprises a natural gas bottle or an LNG bottle, a gasifier, a buffer tank, a vacuum pump, a natural gas compressor, an ANG bottle, a control cabinet, a pressure, temperature and oxygen detecting probe and various valves; main body equipment of the device is mounted on a gasifier prying block, a buffer tank prying block, a vacuum pump prying block and a compressor prying block; the prying blocks are in bolt connection, so that in-site assembled prying can be convenient to perform, and a vehicle-mounted natural gas recovery device can be made, so that the movement and the operation are convenient. The ANG bottles can be demounted, and replaced, and system operation is not influenced. The device is provided with a vacuum system for vacuumizing the system. According to the portable adsorption type natural gas recovery device and the method disclosed by the invention, natural gas exhausted from the natural gas bottles or the LNG bottles is collected to the gasifier and the buffer tank; a compressor is used for compressing the natural gas through medium pressure into the ANG bottles to be stored, so that recovery is realized. When being required by outside, gas in the bottles can realize desorption for use of energy resources.
Owner:CHANGZHOU UNIV +2
Intelligent thermoregulation composite cotton and preparation method thereof
InactiveCN103614905AOvercoming a single thermostat functionThe load is easy to controlHeat-exchange elementsVegetal fibresWater bathsStearic acid
The invention discloses intelligent thermoregulation composite cotton and a preparation method thereof. The cotton is characterized by being prepared by compounding ordinary cotton and organic phase-change substances. The preparation method comprises the following steps: firstly, respectively weighing a certain mass of cotton and an organic phase-change substance (such as paraffin or stearic acid) according to a certain ratio, subsequently respectively dissolving the phase-change substances into a proper amount of a solvent, putting the solution into water bath with certain temperature, continuously stirring for a certain period of time so as to sufficiently disperse and dissolve a phase-change material, further respectively adding the cotton which is weighed in advance into the solution with the organic phase-change substances, soaking for a certain period of time to enable the cotton to sufficiently adsorb the phase-change substances, subsequently evaporating to dry the solvent at certain temperature so as to obtain an organic phase-change substance / cotton composite material, that is, the intelligent thermoregulation composite cotton. The preparation method is simple and convenient to operate, low in cost and environment-friendly, the prepared composite cotton can intelligently regulate the self temperature according to temperature change of the application environment so as to maintain the temperature within a phase-change temperature range, and the product has wide application values.
Owner:ANHUI UNIV OF SCI & TECH
Mxene-based flame-retardant unsaturated resin material and preparation method thereof
The invention discloses an MXene-based flame-retardant unsaturated resin material, and belongs to the technical field of flame-retardant materials. The MXene-based flame-retardant unsaturated resin material is prepared from the following components, by mass: 75.2 to 94 parts of unsaturated polyester resin, 0 to 20 parts of ammonium polyphosphate and 0 to 0.4 part of an MXene material, and the MXene material can be subjected to modification treatment by using 1-butyl-3-methylimidazolium hexafluorophosphate and a silane coupling agent. The MXene-based flame-retardant unsaturated resin material provided by the invention is further subjected to a cross-linking curing reaction with a curing agent and an accelerant to generate the MXene-based flame-retardant unsaturated resin molding material, and the generated MXene-based flame-retardant unsaturated resin molding material has good flame retardance.
Owner:上海永青环保新材料有限公司
Automatic material drying feeding and grinding integrated machine
InactiveCN107774426ADry evenlyEasy to dryCocoaDrying machines with non-progressive movementsEngineeringMaterials processing
The invention relates to an integrated machine for material drying, automatic feeding and grinding, which includes a frame, a fixed grinding disc, a loading clamp, a rotating grinding sleeve, a box door, a spiral feeding shaft and a fixed card, and a grinding wheel is fixed above the frame. box, and a support rod is fixed on the left side of the frame, a first motor is installed above the support rod, and a gear set is arranged below the first motor, a fixed shaft is connected to the right side of the support rod, and the fixed shaft A rotating grinding disc is inlaid in the center, the screw feeding shaft is set inside the feeding pipe, and the fourth motor is installed above the screw feeding shaft, and the fixing card is set on one side of the box door, so that the design can improve material processing The production efficiency is high, and compared with the traditional independent machine, the material drying and automatic feeding and grinding machine saves more space and reduces the input cost of the manufacturer. In addition, the device reduces the number of operating and controlling personnel, saves labor, and reduces The cost of production and processing.
Owner:薛迪宋
Hydraulic clamp capable of tilting vertical and horizontal rolls in air
InactiveCN102085995AHave controlAvoid stallingLoad-engaging elementsEngineeringMechanical engineering
The invention relates to a hydraulic clamp capable of tilting vertical and horizontal rolls in air, which comprises a horizontal rotating part, a tilting part, a clamp part, a hydraulic part, a chain assembly and a control part. The hydraulic air tilting clamp provided by the invention can hang steel rolls in the air and tilt the steel rolls from horizontal rolls into vertical rolls and vice versa, enhances the production efficiency, saves the cost and improves the convenience and safety of the operation through the action of the control part.
Owner:宋振才
A high-sensitivity photosensitive system of a solar tracker
InactiveCN102289233AIncrease light transmittanceReduce light transmissionControl using feedbackSensing systemOptical tracker
The invention discloses a high-sensitivity light-sensing system of a solar light tracker, which includes a housing, a light intensity adjuster and a light spot receiving sensor; the light intensity adjuster is arranged on the housing, and the light spot receiving sensor The device is arranged in the housing, and the light spot receiving sensor is set at the light spot gathering place of the light intensity adjuster; the light intensity adjuster is a combination of a condenser lens and a color-changing mirror or a color-changing condenser lens; the light spot The receiving sensor includes a wiring board, a photocell assembly arranged on the wiring board and lead wires drawn from the wiring board. The high-sensitivity light-sensing system of the solar tracker of the present invention has outstanding advantages including: simple structure, convenient manufacture, cost saving, the lens itself also has a self-cleaning function, and is not easy to fall dust; the sun using the high-sensitivity light-sensing system The light tracker has the advantages of high sensitivity, easy control, and high precision. It has good economic prospects and can produce good social benefits.
Owner:江苏中显集团有限公司
Vehicle air compressor and intelligent air supply system device thereof
PendingCN111396290AReduce running vibrationSolve runnabilityPositive displacement pump componentsBraking action transmissionJackshaftGear wheel
The invention provides a vehicle air compressor and an intelligent air supply system device thereof. The vehicle air compressor is characterized in that the vehicle air compressor is provided with a driving gear (2) and a driven gear (11) which are a pair of gears with the same tooth number, the driving gear (2) is driven by a motor (58), and the driving gear (2) is meshed with the driven gear (11) with the same tooth number, so that two crankshaft connecting rod mechanisms are driven to rotate oppositely, under the driving of the two crankshaft connecting rod mechanisms which rotate oppositely, two pistons of a high-pressure piston group and a low-pressure piston group realize alternate up-and-down reciprocating motion; the pair of gears with the same tooth number are arranged on a main journal (64) of a crankshaft (4), and the crankshaft (4) adopts the double-point supported crankshaft (4) and a maintenance-free bearing (5) which is located at an eccentric crankshaft journal (62) ofthe crankshaft (4). The intelligent air supply system device has the advantages of small vibration, low noise, long service life, high protection level, intelligent control, compact structure, convenience in installation and arrangement and the like.
Owner:ZHEJIANG RUILI AIR COMPRESSOR EQUIP CO LTD
WiFi night lamp
ActiveCN105221999AReduce controlReduce layoutPoint-like light sourceElectric circuit arrangementsEffect lightEngineering
The invention provides a WiFi night lamp. The WiFi night lamp comprises a lampshade and a base; the lampshade is a hollow shell, and the base is fixed to the bottom of the lampshade; the lampshade is divided into an upper part and a lower part, the upper part is made of transplant materials, and a power source driving module, a route WiFi module and a light source module are arranged in the lampshade, wherein the light source module is fixed at the position between the upper part and the lower part of the lampshade, and the route WiFi module and the power source driving module are sequentially fixed below the light source module from top to bottom; and the power source module is fixed in the base. The WiFi night lamp is concise and attractive in model, the better decoration effect can be achieved, and lighting can be achieved; meanwhile, the actual functions of lighting, wireless routes and movement power sources are achieved, whole integration is achieved, and convenience is brought to control; and troubles, caused by too many electric appliances in the aspects of control, arrangement, power interface using, caring and the like, of users are effectively reduced.
Owner:临沂高新资源开发建设集团有限公司
Digital valve flow control system and optimal control method thereof
InactiveCN108733091ASimple structureLow costOperating means/releasing devices for valvesFlow control using electric meansFrequency changerAudio power amplifier
The invention discloses a digital valve flow control system and an optimal control method thereof. The system comprises a signal input device for inputting a preset value, a v-shaped ball valve, a three-phase asynchronous motor for controlling the opening degree of the v-shaped ball valve, a valve position feedback device, a frequency converter for adjusting the rotation number and the rotation direction of the three-phase asynchronous motor, an amplifier, and a PLC. The three-phase asynchronous motor is electrically connected with the frequency converter, and the frequency converter is electrically connected with the amplifier, and the valve position feedback device, the amplifier and the signal input device are all electrically connected with the PLC. The optimal control method comprisesthe steps that a transfer function of the system is established, and a state equation of the control system is worked out by the transfer function, and an optimal solution is performed on the state equation to obtain an optimal control system. The invention is advantageous in that flow stability and interference resistance are good; the intelligent control is adopted to enable the accurate valveflow control device to have relatively good stability and energy-saving effect.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Automatic control system for pressure of liquid chlorine gasification device
ActiveCN104615168AHave controlWith chlorine gas pressure online detection functionFluid pressure control using electric meansAutomatic controlControl signal
The invention relates to the technical field of metallurgical production, and discloses an automatic control system for pressure of a liquid chlorine gasification device. The system comprises the liquid chlorine gasification device, a liquid chlorine conveying pipeline, a chlorine conveying pipeline and a steam conveying pipeline, wherein the liquid chlorine conveying pipeline is provided with a liquid chlorine cut-off valve and a liquid chlorine adjusting valve in sequence; the chlorine conveying pipeline is provided with a chlorine pressure sensor; the steam conveying pipeline is provided with a steam pressure sensor; a pressure signal detected by the chlorine pressure sensor is transmitted to a host; a valve opening control signal is emitted to the liquid chlorine adjusting valve by the host to control the opening of the liquid chlorine adjusting valve; the detected steam pressure signal is transmitted to the host by the steam pressure sensor; a liquid chlorine cut-off valve opening control signal is emitted by the host to control the opening of the liquid chlorine cut-off valve. The system has the chlorine pressure on-line detection and pressure automatic adjustment functions, can realize automatic protection during steam decompression or low voltage of the liquid chlorine gasification device, the input of the liquid chlorine is cut off through one key, and the safety performance of production equipment is improved.
Owner:甘肃金川智慧测控技术有限公司
Drainer overturning control device based on gravity detection
The invention discloses a drainer overturning control device based on gravity detection. The method is based on a motor which is fixedly connected with a drainer by virtue of a rotating shaft, and comprises the following steps: presetting a weight value of water in a pool basin; detecting the weight of water in the pool basin, and acquiring the weight value; presetting a difference table, dividing the differences into multiple ranges by virtue of the difference table, and setting the corresponding value of the number of rotating turns of the motor in each range; obtaining an actual difference value; comparing the actual difference value with the difference table, and determining the range in which the actual difference value is positioned so as to acquire the number of rotating turns of the motor set in the range; driving the rotating shaft to rotate by the motor according to the acquired number of rotating turns of the motor, and driving the drainer to turn so as to form an included angle between the drainer and a drain opening. According to the method disclosed by the invention, the value of the number of different rotating turns of the motor can be acquired according to the difference range, and the motor is controlled to rotate for different turns, so that different included angles are generated between the drainer and the drain opening, and automatic drainage control can be realized.
Owner:WUXI COCIS ELECTRONICS TECH
Solid-state food cutting machine capable of circulating delivery
InactiveCN104175354AGuaranteed uptimeIncrease squeezeMetal working apparatusMonitoring and controlEngineering
The invention provides a solid-state food cutting machine capable of circulating delivery. The cutting machine comprises a base, and a cutting support body arranged on the base and used for cutting, wherein supporting shafts arranged on the two sides of the cutting support body respectively are fixedly mounted on the base; a pushing part for pushing the cutting body to operate is arranged at the upper part of the cutting support body; a controller is fixedly arranged on the operational surface of a mounting part; a low-position detector is mounted at the bottom of the pushing part so as to detect the low position of the pushing part; a high-position detector is mounted at the high position of the pushing part so as to detect the high-position; an electromagnetic contactor is mounted at the top of the pushing part so as to control the working position of the pushing part; a programmable controller is connected with the outer part of the controller so as to conduct overall monitoring and control; a conveyor is mounted at the front end of the base correspondingly; solid-state food undercutting plates are arranged on the conveyor in sequence. The solid-state food cutting machine has the advantages that the machine is stable in operational effect, larger in extrusion force, better in the protection of a cutting tool, more stable and solid in internal structure, and has the advantages that the automatic detecting and controlling can be implemented, and the automatic delivery can be implemented for conducting cutting and processing.
Owner:浙江呈香记食品有限公司
An AC/DC hybrid and off-grid energy rout device
InactiveCN109038679AAdjustableHave controlBatteries circuit arrangementsSingle network parallel feeding arrangementsEngineeringClean energy
A DC / AC hybrid and off-grid energy rout device is disclosed, It mainly consists of distributed power interface, bidirectional AC power interface, unidirectional DC power output interface, sensor signal interface, energy storage battery interface, unidirectional AC power output interface, energy router control module, energy meter (10, 16), grid-connected transfer switch, off-grid transfer switch,multi-MPPT-DC / DC module, bidirectional DC / AC module, A switch power supply / rectifier module is compose of, in accordance with that signal interface of the sensor, distributed power interface, Data transmitted by the energy storage battery interface, Through the detection and control of the unidirectional DC power output interface and the bidirectional AC power connection interface by the energy router control module, the multi-path AC / DC hybrid off-grid active power supply and distribution for different loads and different periods is realized, the structure of the micro-grid is optimized, andthe clean energy access ratio and the active distribution capacity are improved.
Owner:WUXI MEIKAI ENERGY TECH
H-bridge driving control circuit of motor
InactiveCN102005990BWith cut-through protectionImprove anti-interference abilityField or armature current controlDc motor startersPower flowElectric machine
Owner:SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
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