Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

332results about How to "Control work status" patented technology

User sleeping state-based household appliance control device and control method

The invention discloses a user sleeping state-based household appliance control device and a user sleeping state-based household appliance control method. The device comprises a physiologic information monitor and a plurality of household appliance terminal controllers, wherein the physiologic information monitor is connected with the household appliance terminal controllers in a wireless or wired way; a physiologic information sensor for monitoring the sleeping state of a user is connected outside the physiologic information monitor; and the household appliance terminal controllers control corresponding household appliances to work. Various physiologic information parameters of the user during sleeping are acquired and monitored by the physiologic information sensor and information is mined so as to judge whether the user is asleep or awake and whether the user is at a slow eye motion (or slow wave sleep) stage or a quick eye motion (or paradoxical sleep) stage. Therefore, working states of the household appliances are controlled accurately through the household appliance terminal controllers, household appliance intellectualization is realized, the sleeping quality of the household appliance user is enhanced and the aims of saving energy and protecting the environment are fulfilled.
Owner:ZHEJIANG UNIV

Intelligent home system, and intelligent home control apparatus and method

InactiveCN105607504ASolve the problem that the control is not intelligent enough to meet the needs of usersMeet needsComputer controlProgramme total factory controlFace detectionUser needs
The invention discloses an intelligent home system, and an intelligent home control apparatus and method. The intelligent home control apparatus includes a communication module, a face detection module, a face identification module and a control module, wherein the communication module is used for communication with each home equipment, and sending a control command to each home equipment to control the working state of each home equipment; the face detection module is used for acquiring the face image information in a detection area; the face identification module is used for identifying the face image information to obtain the user information; and the control module is used for acquiring a home equipment control strategy corresponding to the user information, and generating a corresponding control command according to the home equipment control strategy. The intelligent home system, and the intelligent home control apparatus and method can solve the problem that in the prior art, control of intelligent home is not intelligent enough and cannot satisfy the user requirement, and can realize intelligentization of intelligent home to enable the intelligent home to automatically identify the user and provide the corresponding service, thus improving the convenience for usage for the user and satisfying the user requirement.
Owner:MIDEA GRP CO LTD

Automatic level-controlling draining dehumidifier and draining method thereof

An automatic level-controlling draining dehumidifier mainly comprises a water pump suction pipe, a water pump drainage pipe, an electromagnetic water pump, a water pump fixing cover, an inductive switch fixing part, a water fullness alarming switch, a pumping alarming switch, a drainage quick adapter assembly, a level measuring floater, a water-collecting tray, an osculum, an osculum plug, a compressor and a heat exchanger; the connection is as follows: one end of the water pump suction pipe is connected with the water-collecting tray and the other end is connected with the electromagnetic water pump; one end of the electromagnetic water pump is connected with the water pump suction pipe; the other end of the water pump drainage pipe is connected with the quick adapter assembly; the level measuring floater is arranged below the water pump fixing cover; and the water fullness alarming switch and the pumping alarming switch are fixed by the inductive switch fixing part. The draining method of the dehumidifier comprises the following steps: one electromagnetic water pump is arranged on the side surface of the water-collecting tray; when the dehumidifier is working, the condensed water is generated by the heat exchanger and falls into the water-collecting tray; the level measuring floater rises slowly under the effect of buoyancy with the increase of water quantity so as to measure the height of the water collected in the water-collecting tray; the floater firstly touches the pumping alarming switch with the rising of level and then the electromagnetic water pump starts to work; the quick adapter at the bottom of a chassis can be connected with a rubber drainage tube with length of about 5M; then the electromagnetic water pump drains the water inside the water-collecting tray out of the room through the water pump suction pipe and the water pump drainage pipe; if the floater touches the pumping alarming switch firstly but the electromagnetic water pump does not work.
Owner:NINGBO ERYE & ELECTRONICS

Method and device for controlling equipment state and equipment

InactiveCN103116450ASolve the abnormal execution of wake-up operationAvoid frequent useInput/output processes for data processingKey pressingControl equipment
The invention relates to a method and a device for controlling an equipment state and equipment. The method for controlling the equipment state comprises the following steps: at least two-time contact which corresponds to a touch key-press is detected; when the at least two-time contact is continuous contact, the equipment is awakened from a dormant state, or the equipment is locked from an unlocked state or an awakened state. The device for controlling the equipment state comprises a detection unit and a control unit, wherein the detection unit is used for detecting the at least two-time contact which corresponds to the touch key-press, and the control unit is used for awakening the equipment from the dormant state, or locking the equipment from the unlocked state or the awakened state when the at least two-time contact is the continuous contact. The equipment comprises the device for controlling the equipment state. The method and the device for controlling the equipment state and the equipment can avoid abnormal awakening of the equipment.
Owner:SHANGHAI AWINIC TECH CO LTD

Nozzle, ejector based on nozzle and having adjustable flow characteristic, and application of ejector

The invention discloses a nozzle, an ejector based on the nozzle and having an adjustable flow characteristic, and application of the ejector. The nozzle comprises a nozzle body, a small nozzle, a large nozzle and an elastic part; a thin and long hollow pipe with a valve is adopted as the small nozzle, and the elastic part is arranged between the set of large nozzle and the set of small nozzle; one end of the elastic part jacks the valve part of the small nozzle, and the other end of the elastic part jacks the large nozzle; and the elastic part can change the position of the valve of the smallnozzle under the effect of to-be-ejected gas, and then a flowing path of the to-be-ejected gas is controlled. The supply quantities of hydrogen and recycled hydrogen are automatically controlled by the nozzle according to system loads; when the low load exists, the small nozzle acts, the pressure of a nozzle outlet is small, the recovery rate of the recycled hydrogen is high, and the hydrogen utilization rate is increased; when the medium-high loads exist, the two sets of nozzles act simultaneously, and the large nozzle is used for enlarging the circulating area to provide the larger fuel flow; and the small nozzle is used for increasing the ejecting speed to improve properties of the ejector.
Owner:SHANDONG UNIV

Constant-temperature and constant-humidity air conditioner and control method thereof

The invention relates to a constant-temperature and constant-humidity air conditioner and a control method of the constant-temperature and constant-humidity air conditioner. The constant-temperature and constant-humidity air conditioner comprises a main control module, an electric heating device, a temperature sensor and a humidity sensor, wherein the electric heating device, the temperature sensor and the humidity sensor are connected with the main control module. A water groove is formed in the electric heating device and communicated with a water tank through a water pump. The temperature sensor and the humidity sensor detect the environment temperature and the environment humidity respectively, generate detection signals and send the detection signals to the main control module, and the main control module controls the running state of the air conditioner, the working state of the electric heating device and the working state of the water pump. A humidifying device is integrated on the electric heating device. When humidification needs to be conducted, water is added into the water groove, the electric heating device is started, and water vapor is generated so that the humidification can be conducted. When humidification does not need to be conducted, no water is added into the water groove, and the temperature can be adjusted with the help of the electric heating device. Accordingly, the control module controls the working state of the electric heating device and the working state of the water pump according to the indoor temperature detected by the temperature sensor and the indoor humidity detected by the humidity sensor so that the indoor constant temperature and the indoor constant humidity can be achieved.
Owner:广东科龙嘉科电子有限公司

Sensor and method for monitoring wireless multipoint ground temperatures

The invention discloses a sensor for monitoring wireless multipoint ground temperatures. The sensor comprises an electric energy supply unit, a sealing body, an insulating tube, a signal wire, a control board, at least one temperature sensor node unit and a radio frequency unit, wherein the electric energy supply unit is fixed on the sealing body in which the control board is fixed; the sealing body is tightly connected with the insulating tube; the insulating tube is tightly connected with the at least one temperature sensor node unit through threads; and the temperature sensor node unit is connected with the control board through the signal wire. The invention also provides a control method for the sensor, which comprises the following steps that: the wireless radio frequency unit detects a wireless sensor network and sends a network access request to a gateway in the wireless sensor network after detecting the wireless sensor network; after receiving the request, the gateway allows the sensor for monitoring the wireless multipoint ground temperatures to access the network, allocates a network address to the sensor and returning an access success message. The sensor can accurately measure the temperatures of soil in different depths and contributes to the real-time monitoring of soil temperature.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI

Hydraulic control device for hybrid power transmission

The invention discloses a hydraulic control device for a hybrid power transmission, wherein a main oil-way is respectively connected with a lubricating oil-way, a clutch control oil-way and an electromagnetic valve control oil-way, the main oil-way is connected with a cooling and lubricating oil-way through an unloading valve, the cooling and lubrication oil-way is connected with a valve core control oil port of the unloading valve at the same time, the oil outlet of the unloading valve is respectively connected with an oil inlet of an overflow valve and the clutch control oil-way, the oil outlet of the overflow valve is connected with the lubricating oil-way, the clutch control oil-way is respectively connected with oil inlets of proportional reducing valves A and B, a reducing valve is arranged between the electromagnetic valve control oil-way and the main oil-way, the electromagnetic valve control oil-way is respectively connected with valve core control oil ports of the proportional reducing valves A and B through oil-saving holes, and is respectively connected with a switching electromagnetic valve and a halt locking hydraulic cylinder through the oil-saving holes. The hydraulic control device has simple structure, can rapidly lubricate the transmission, and is suitable for the hydraulic control of the hybrid power transmission.
Owner:江西鼎盛新材料科技有限公司

Smart matrix battery charging-discharging managing system and managing method

The invention discloses a smart matrix battery charging-discharging managing system. In the system, a plurality of serial units are connected with a power supply and a load through a total controller after being connected in series; each serial unit consists of a monomer battery or a plurality of parallel single batteries; each serial unit is provided with a motherboard and a short-circuit switch K21 controlled by the motherboard; the motherboard is connected with the total controller through a control bus; each single battery is provided with a daughter board; and the daughter board is communicated with the motherboard through a bus. According to the battery managing system provided by the invention, the working state of each single battery can be controlled accurately without keeping the capacities of all single batteries in the serial units consistent, and great convenience is brought to battery separation and grouping work of battery production plants. The daughter board of the system can be completely integrated and encapsulated into a smart battery together with a battery, so that the production work and the researching and manufacturing work of the battery managing system of battery manufacturers can be performed separately, and devotion to the developing directions of respective fields is realized.
Owner:天津凌可机电设计有限公司

Range hood and control method thereof

The invention relates to a range hood and a control method thereof. The range hood comprises a range hood body. A control device, a draught fan and a lampblack detection device are arranged in the range hood body. The lampblack detection device comprises an infrared emitter and two infrared receivers. One infrared receiver and the infrared emitter are oppositely arranged on the two sides of an air inlet of the range hood body and used for acquiring infrared rays penetrating through lampblack. The other infrared receiver and the infrared emitter are installed on the same side and used for acquiring infrared rays which are blocked and reflected by lampblack. The infrared emitter and the infrared receivers are connected with the control device. The control device controls the rotating speed of the draught fan according to an infrared detection signal. According to the range hood and the control method thereof, the concentration of lampblack is determined through a difference comparison method, and then the rotating speed of the draught fan is controlled; the change of lampblack is independent of the change of ambient light and the like, existing interference factors are eliminated to the maximum extent, and the lampblack concentration detection precision is improved.
Owner:QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD

Heating control method and air conditioner

The invention provides a heating control method and an air conditioner. The heating control method includes the steps that the outdoor ambient temperature, the condensing pressure information and theindoor ambient temperature are collected according to a preset time period; when it is judged that a low-temperature powerful heating mode is started according to the first outdoor ambient temperature, a preset temperature interval to which the first outdoor ambient temperature belongs is matched; if the first outdoor ambient temperature belongs to a first temperature interval, the operating parameters of a compressor or an outer fan of the air conditioner are controlled according to the saturation temperature corresponding to the condensing pressure information and the indoor ambient temperature, wherein the preset temperature interval includes the first temperature interval, that is to say, when it is determined that the low-temperature powerful heating mode is started and the outdoor ambient temperature still belongs to the first temperature interval, the heating capacity attenuation degree is determined according to the saturation temperature corresponding to the condensing pressure information and the indoor ambient temperature, and the operating parameters of the compressor or the outer fan of the air conditioner are controlled accordingly so as to improve the heating effectof the air conditioner and improve the use experience of a user.
Owner:NINGBO AUX ELECTRIC

Management method and management system for sensor nodes in sensor network and gateway

The invention discloses a management method and a management system for the sensor nodes in a sensor network and a gateway. The system comprises a collection module, a report module and a node management module, wherein the collection module is used for collecting the electric quantity information and pick-up information reported by all sensor nodes in an activated state in the sensor network; the report module is used for reporting the pick-up information of the sensor nodes to the node management module, and reporting the electric quantity information of the sensor node meeting the report conditions to the node management module if the electric quantity information of at least one sensor node meets the report conditions; the node management module is used for closing or activating the sensor nodes in the sensor network according to the electric quantity information or the electric quantity information and pick-up information of the sensor nodes reported by the report module. According to the system, by judging the electric quantity information and pick-up information of the nodes, the working state of the sensor nodes is flexibly controlled, the resources of sensor nodes are reasonably utilized, the number of sensor nodes is controlled to avoid'shortage and waste', and the node pick-up efficiency is improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Textile drying machinery

The invention relates to textile machinery, particularly to textile drying machinery. The adopted technical scheme lies in that the textile drying machinery comprises a drying box, wherein a slide rail is arranged at the inner top of the drying box; a plurality of dryers are arranged on the slide rail, and can freely slide on the slide rail; an unwinding mechanism and a winding roll are respectively arranged on the front side and the back side of the drying box; a front guide roll, a heating roll group, a pressure roll group and a back guide roll are sequentially arranged below the dryers; a collection window is arranged at the top of the drying box; a fan is arranged in the collection window; the collection window is connected with a heat preservation pipe; a water collection tank is connected at the bottom of the heat preservation pipe; and an air inlet channel is arranged at the side part of the drying box. The textile drying machinery has the advantages that the structure is reasonable, the using effect is good, water vapor generated during the drying process can be collected, the secondary textile impregnation caused by water vapor is avoided, the drying effect can be improved, and the energy consumption is reduced.
Owner:TAICANG QISHENG CHEM FIBER FACTORY

Intelligent catch basin

The invention discloses an intelligent catch basin which comprises a shaft. The side face of the shaft is provided with a water inlet pipe, a rainwater outlet pipe, a sewage drainage pipe, a sewage pressure drainage pipe, a rainwater outlet pipe anti-backflow drainage gate, a sewage discharge gate of the sewage drainage pipe, and a submersible sewage pump, a pressure pipeline, a check valve and agate valve which are matched with the pressure drainage pipe. Internal equipment in the catch basin is automatically started and shut down according to the water amount and the liquid level. A liftingtrash intercepting grating for impurities in water in the water inlet pipe and the rainwater outlet pipe anti-backflow drainage gate are arranged in the shaft of the main body equipment. The intelligent catch basin achieves a sewage intercepting function on sunny days, early-stage rainwater intercepting and later-stage rainwater direct drainage can be achieved by monitoring rainwater, zero directdrainage on sunny days and early-stage rainwater zero direct drainage on rainy days are achieved, the rainwater is directly discharged into a river in the later stage, and an anti-backflow function is achieved. The catch basin is easy to build, high in operability and capable of realizing continuous and stable operation.
Owner:TAIZHOU SHENGHE WATER TREATMENT EQUIP MFG CO LTD +1

Automatic glass cleaning device for cleaning building curtain wall

The invention relates to the field of curtain wall cleaning, and specifically relates to an automatic glass cleaning device for cleaning a building curtain wall. The automatic glass cleaning device comprises a hanging basket, a sewage recycling component, a water spraying component, a glass cleaning component, a cleaning liquid mixing component, a controller and a stirring component; a first mounting plate is horizontally arranged in the middle of the inner side wall of the hanging basket; the water spraying component and the glass cleaning component are installed on the side wall of the hanging basket; the stirring component is installed on the cleaning liquid mixing component; the controller is fixedly installed at the bottom of the inner side of the hanging basket; the water spraying component comprises a vertically arranged water spraying disk connected to an output end of the cleaning liquid mixing component; the glass cleaning component comprises a vertically arranged rotatable cleaning brush disk; and the sewage recycling component comprises a sewage treatment tank and a trapezoidal sewage collection channel for collecting sewage. The automatic cleaning device provided by the invention can efficiently clean a glass curtain wall and recycle the cleaning sewage, can accurately prepare the cleaning solution with the most appropriate ratio, and can collect the sewage that cannot be recycled.
Owner:RIZHAO POLYTECHNIC

Communication device and method and device for beam forming

The invention discloses a communication device and a method and device for beam forming. The communication device comprises N antenna array elements, a signal processing module and a control module, wherein the N antenna array elements can receive demands of the control module and keep a state of participating in work or a state of not participating in work; the signal processing module is used for processing to-be-sent signals and sending the processed signals through the antenna array elements participating in work; the control module is used for sending the demands, and the demands are used for indicating the antenna array elements participating in work among the N antenna array elements. The problem that when a 60GHz directional antenna performs beam forming, every antenna array element can only be in a working state, precision searching within a certain range can only be finished through scanning many times during scanning, and working efficiency is low is solved, the working state of every antenna array element can be controlled, beam forming search is finished through various working states, and working efficiency is improved.
Owner:ZTE CORP

Automatic bearing waste grease collecting system and automatic bearing grease changing system

The invention discloses an automatic bearing waste grease collecting system and an automatic bearing grease changing system. The automatic bearing waste grease collecting system of the automatic bearing grease changing system comprises a bearing structure, a lubricating space used for containing lubricating grease is arranged between an outer ring and an inner ring of the bearing structure, the bearing structure is provided with grease outlets which communicate with the lubricating space, a suction and discharge device is arranged at each grease outlet in a communicating manner, and each suction and discharge device is provided with an independent power system. According to the automatic bearing waste grease collecting system and the automatic bearing grease changing system, each suction and discharge device is provided with one independent power system and has nothing to do with an injection device, so that the suction and discharge devices can be started conveniently, the starting frequency of each suction and discharge device is adjusted according to practical requirements, suction and discharge work is conducted according to practical requirements, and therefore it is guaranteed that the internal pressure state of the bearing structure is reasonable.
Owner:AUTOL TECH

Remote turn-off control signal receiving circuit

ActiveCN103166444AControl work statusThere will be no problem of power failure for a long timePower conversion systemsCapacitanceRC time constant
The invention discloses a remote turn-off control signal receiving circuit. The remote turn-off control signal receiving circuit comprises a remote control end, a voltage input end, a turn-off signal input end, an audion used for outputting the turn-off signals, a biasing circuit and a clamping circuit, a first capacitor which is used for discharging transient pulse energy, and a second capacitor which is used for absorbing the transient pulse energy. The first capacitor is connected between the remote control end and the voltage input end. The second capacitor is connected between a base electrode of the audion and the ground. The value of the second capacitor is set according to remote control (RC) time constant of a biasing resistor and the second capacitor. When the transient pulse occurs, through charging of the second capacitor, time that voltage of the two ends of the second capacitor reaches the break-over voltage of the audion is greater than the duration time of the transient pulse. The value of the first capacitor needs to be set according to the size of transient pulse energy. The remote turn-off control signal receiving circuit can restrain the transient pulse, prevent damage of devices, improve reliability of products, and can solve the problem of long time power down of pulse-width modulation (PWM) switch power supply output voltage.
Owner:MORNSUN GUANGZHOU SCI & TECH

Multifunctional test and experiment platform for desk research of jet drilling

PendingCN107893634ARealize automatic controlReasonable optimization of jet drilling parametersLiquid/gas jet drillingEngineeringScientific study
The invention relates to a multifunctional test and experiment platform for a desk research of jet drilling. The multifunctional test and experiment platform for the desk research of the jet drillingcomprises a power module, an experimental condition control module, a test and detection module, a fluid circulation module, and a drilling assembly. The power module comprises a micro-drilling experiment device and a mud pump; the experimental condition control module comprises a center control unit and a confining pressure control unit; the test and detection module comprises a sensing detectionunit, a data acquisition unit, a data processing unit, and a display storage unit; and the fluid circulation module comprises a water faucet, a water tank, a sedimentation and a filtration ditch, a sewage pump, and a simulation wellbore with an opened upper end and a sealed and transparent lower end. According to the multifunctional test and experiment platform for the desk research of the jet drilling, a practical jet drilling process can be simulated in a laboratory, and necessary conditions can be created for carrying out the laboratory experiment of the jet drilling; and automatic controlcan be achieved in an experiment process, the non-visual jet drilling process in the underground can be visualized, and a semi-empirical research is transferred into a scientific and quantified research.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY +1

Temperature control method and apparatus for high-power LED

The embodiment of the invention provides a method and a device for temperature control of a large-power LED. The invention comprises the following steps: the large-power LED is connected with a radiator and the radiator is connected with a driving power supply of the large-power LED; a temperature signal of the radiator is obtained and is transmitted to the driving power supply; then the driving power supply controls the working status of the driving power supply according to the received temperature signal. Therefore, the work status of the large-power LED is controlled, thereby realizing the control over the work temperature of the large-power LED, prolonging the service life of the large-power LED and the driving power supply, effectively reducing the consumption of the radiator and saving resource.
Owner:鸿宝科技股份有限公司

Intelligent power distribution network

The invention discloses an intelligent power distribution network. Each user terminal is provided with a detection module; each user terminal is also provided with a wireless communication chip, so that regional servers can be connected with the user terminals with no wires required; the regional servers collect the working status information data of user home circuits collected by the detection modules of the user terminals through the detection modules, analyze the data, and send circuit abnormal alarms to a cloud server if abnormal fluctuation occurs; each regional server has a region number of a region corresponding to the regional server; each user terminal has a terminal number corresponding to the terminal; the fluctuation condition of the power distribution network of each region can be collected on a large scale; region arrangement intensity can be obtained by means of analysis; large-scale power distribution network abnormality judgment is carried out; terminal arrangement density is obtained through analysis on the basis of the terminal numbers; and small-scale judgment is carried out on the basis of the terminal arrangement density.
Owner:PINGYANG ELECTRIC POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +3

Display panel driving method and display panel

The invention discloses a display panel driving method and a display panel. The method comprises the following steps: grouping shifting registers in a grid driving circuit, setting different frame starting signal terminals and different clock control signal terminals for the groups of shifting registers so as to control the working states of the groups of shifting registers at different frame display times; at first display frequency, controlling all of the groups of shifting registers to work for one time according to the sequence of the groups of shifting registers within each frame of scanning time to display an image, and inputting column overturning display signals with lower power consumption to data lines at this time to realize a point overturning display effect; and at second display frequency subjected to frequency reduction compared with the first display frequency, scanning all grid lines for one time within multiple frames of continuous scanning times according to the frequency reduction fold and the number of the groups of shifting registers so as to display an image. The number of display signals located by the data lines within each frame of scanning time is reduced, the times of negative and positive polarity switch of the display signals are reduced, and the power consumption is reduced.
Owner:XIAMEN TIANMA MICRO ELECTRONICS

Wireless stem flow sensor and its control method

ActiveCN101476913AMeasuring equipment is simple and preciseEasy to makeVolume/mass flow by thermal effectsCalorimeterRadio frequencyLine sensor
The invention relates to a wireless stem flow sensor and a method for controlling the same. The sensor comprises a sensing parameter acquisition unit and a wireless on-chip system, wherein the sensing parameter acquisition unit comprises a heating element clamped on the surface of a stem, and an upstream temperature sensor and a lower downstream temperature sensor which are symmetrically arranged with the heating element as a center and acquire an upstream temperature electrical signal and a downstream temperature electrical signal of the stem respectively; the wireless on-chip system comprises a microcontroller; and according to the upstream temperature electrical signal and the downstream temperature electrical signal, the microcontroller acquires and temporarily stores stem flow data in an on-chip memorizer by a thermal equilibrium method, receives an inquiry instruction and sends the stem flow data out; and a wireless radio-frequency unit receives various instructions sent by an upper computer of a wireless sensing network, retransmits the instructions to the microcontroller, receives the stem flow data sent by the microcontroller and sends the stem flow data to the upper computer by the wireless sensing network. The method adds the wireless sensor to the wireless sensing network and carries out dormancy, the sending of the stem flow data and the adjustment of acquired frequency according to various instruction sent by the upper computer. The equipment is simple, accurate and convenient to manufacture and utilizes a wireless mode to reduce wiring cost.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

High-voltage IGBT driving and protecting circuit

The invention discloses a high-voltage IGBT driving and protecting circuit. A signal processing circuit, an isolation transformer transmission circuit, an isolation power supply circuit, an undervoltage protecting circuit, a gate pole clamping circuit, a short-circuit protecting circuit, an IGBT dynamic fault detecting circuit, an insulated gate bipolar transistor and a power supply are included. The high-voltage IGBT driving and protecting circuit has the advantages that working under a high-voltage operation environment can be achieved, high power can be output, high working efficiency is achieved, quick response is achieved, low-input-output delay time is at the microsecond level, high anti-jamming capability is achieved, input 1800V bus voltages can achieve driving isolation capacity of above 4000V, the safety of a system is well guaranteed, meanwhile, working state information transmitted through feedback signals can be monitored and controlled by a central control unit in real time, system reliability is greatly improved, and the high-voltage IGBT driving and protecting circuit can be widely used in the industrial control field where power conversion is needed.
Owner:北京京铁信达科技有限公司

Convenient and rapid type automatic steel plate cutting device

The invention belongs to the technical field of steel plate cutting and particularly provides a convenient and rapid type automatic steel plate cutting device comprising a base plate. The top of the base plate is fixedly connected with two hydraulic push rods. The top ends of the hydraulic push rods are fixedly connected with a first support plate, and the bottom of the first support plate is provided with a second sliding groove. According to the convenient and rapid type automatic steel plate cutting device, through arrangement of threaded columns, a double-shaft motor and threaded caps, adjustment of the distance between laser cutting heads is convenient; through the arrangement of an adjusting assemblies, the double-shaft motor, the threaded columns and the threaded caps, not only thedistance between the laser cutting heads is adjusted, but also the demand for adjusting the angles of the laser cutting heads is met; by the adoption of first motors, first rollers, second rotating shafts and second rollers, automatic conveying of the steel plate is achieved, so that the labor cost is greatly saved, the cutting efficiency is improved; and meanwhile, uses is more convenient and rapider, and the whole device is simple in structure, reasonable in design and strong in practicability.
Owner:中电装备青岛豪迈钢结构有限公司

Bitumen-like material creep test device

The invention discloses a bitumen-like material creep test device comprising a test table, a support, a pressure head component, a three-stage lever reinforcement structure and a temperature control mechanism. The support comprises a front pillar and a rear pillar; the three-stage lever reinforcement structure comprises a first lever, a second lever, a third lever, a first pillar, a second pillar and a tray; the tray is hinged to the first lever, the first lever and the third lever are hinged to the front pillar, and the second lever is hinged to the rear pillar; the first pillar is hinged to the first lever and the second lever, respectively; the upper and lower ends of the second pillar are hinged to the second lever and the third lever, respectively; the third lever is hinged to the pressure head component used for clamping a sample, the sample is disposed inside the temperature control mechanism. The device has the advantages that the applied force is amplified, the range of a lever creep system is increased, the running state of equipment is controlled through a micro-displacement compensation system, the structure of the device is simple, and the disassembly and maintenance of the device are easy.
Owner:HEBEI UNIV OF ENG

Multifunctional automatic environment-friendly welding cap

The invention discloses a multifunctional automatic environment-friendly welding cap which comprises a mask. An eye lens is arranged on the mask and includes an inner eye lens and an outer eye lens, the inner eye lens is embedded into the mask, the outer eye lens is movably arrange don the outer side of the inner eye lens in a removable structure, the mask is provided with an air inlet and a blowing fan, the air inlet is provided with a filter screen and positioned in the top of the mask, the blowing fan is positioned on the lower portion of the air inlet, a motor controller is arranged on themask, a signal output end of a control button is connected with a signal input end of the motor controller, and a control output end of the motor controller is connected with control input ends of anouter eye lens driving motor and a blowing fan driving motor. The welding cap is simple in structure, convenient to carry and operate, low in cost and wide in use range, working states of the outer eye lens and the blowing fan can be conveniently controlled, and harm of welding strong light and poisonous gas to human bodies is prevented.
Owner:杨帆

Automobile intelligent interaction system

The invention provides an automobile intelligent interaction system, being suitable for an automatic catch car. The automobile intelligent interaction system includes a user client, a service platform and a vehicle intelligent interaction apparatus, wherein a user can input a control command through the user client; the vehicle intelligent interaction apparatus can control the working state of components in a vehicle according to the control command; and the vehicle intelligent interaction apparatus can also actively read the data of a trip computer, and can control the working state of the components in the vehicle after data fusion. The automobile intelligent interaction system can control the working state of the components in the vehicle through the intelligent terminal, can fuse the read data in the automobile trip computer, and can automatically control the working state of the components in the vehicle according to the fusion result.
Owner:张力
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products