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50results about How to "Meet the requirements of intelligence" patented technology

Electrified on-line monitoring and protecting device for intelligent high-voltage vacuum circuit breaker

The invention discloses an electrified on-line monitoring and protecting device for an intelligent high-voltage vacuum circuit breaker. The electrified on-line monitoring and protecting device for the intelligent high-voltage vacuum circuit breaker comprises a hall current sensor, a differential transformer displacement transducer, a pressure sensor and a wireless temperature sensor, wherein a signal output end of the hall current sensor is connected with an A / D (Analog to Digital) converter I; a signal output end of the differential transformer displacement transducer is connected with an A / D converter II; a contact switch port is connected with an optoelectronic isolation module; a signal output end of the pressure sensor is connected with a vacuum degree monitor; and the A / D converter I, the A / D converter II, the optoelectronic isolation module and the vacuum degree monitor are respectively connected with a central processing unit; the central processing unit is connected with an RS485 communication module and a displayer; and the wireless temperature sensor is in wireless communication connection with a temperature collector in the central processing unit. The electrified on-line monitoring and protecting device for the intelligent high-voltage vacuum circuit breaker has strong antijamming capability, high monitoring accuracy, strong stability, and reliable safeguard procedures.
Owner:ANHUI LONGPO ELECTRICAL

Monitoring system of electric car charging station based on IEC61850

The invention relates to a motoring system of an electric car charging station, in particular to a monitoring system of the electric car charging station based on the IEC61850. The monitoring system of the electric car charging station based on the IEC61850 comprises a monitoring backstage, a charging pile, a power distribution system, a security and protection system, a communication management unit with the electric power standard IEC61850 written in and a short message service system. The monitoring system of the electric car charging station based on the IEC61850 can intelligently charge a storage battery of an electric car, meets the requirement for intelligence of the electric car charging station at present, builds the communication standard of the charging station based on the electric power standard IEC61850, and achieves the uniform communication standard of the charging station monitoring system. IEC61850 protocol conversion software is installed in the communication management unit, and the communication management unit is provided with a document library, based on SCL, of all devices of the charging station and a communication Ethernet interface, based on the IEC61850 standard, compatible with all the devices. Thus, the monitoring system of the electric car charging station based on the IEC61850 has higher compatibility, can expand other hardware facilities easily, and reduces the cost of the charging station.
Owner:TAIYUAN UNIV OF TECH

Low-voltage big user integrated protection control method for power distribution network

The invention discloses a low-voltage big user integrated protection control method for a power distribution network, comprising establishing a power distribution network area autonomous management system that includes a low-voltage large user intelligent terminal, a public transformer intelligent base station and an area intelligent control center which are in mutual communication connection by an integrated communication network; dynamically configuring a low-voltage load rated capacity according to change of power distribution network load; timely monitoring load groups of a public transformer area and collecting data of the same, when the electrical load of the public transformer area exceeds the rate capacity, controlling the low-voltage large user intelligent terminal to perform overloaded regulation and control on the power distribution network in a plurality of gradient manners, and dynamically recording the maximum load data of the power distribution network. Through the integrated communication network, transmitting the maximum load data to the public transformer intelligent base station by the low-voltage large user intelligent terminal to analyze and forecast the load groups, transmitting the analyzed data to the area intelligent control center by the public transformer intelligent base station, and thereby achieving power quality and line loss background analysis, and overall regulation and control on the power distribution network.
Owner:HANGZHOU ZHIGUANG ECON TECH

Smart home security system

The invention discloses a smart home security system, which comprises a monitoring module, a central processing module, a camera module, a locking module, an alarm module, a wireless module and a wireless terminal, and the central processing module is connected with a monitoring module, a camera module and a locking module , an alarm module and a wireless module, the wireless module is connected with a wireless terminal. The invention solves the defects that the smart home system in the prior art is not intelligent enough, poor in practicability and convenience, and detects the safety situation through the RFID reader and the shock sensor, so that the traditional anti-theft net anti-theft window becomes invisible, and at the same time the alarm The situation judgment is more accurate, and the central processing module issues instructions to make each security protection module act, and an alarm situation is generated to the wireless module in time, so that the user can take measures in time to prevent the item from being stolen, so that the intelligence, practicability and convenience of the present invention are improved. Greatly improved, it can meet the intelligent requirements of the home security system.
Owner:HEFEI SIBOT SOFTWARE DEV CO LTD

Intelligent inflatable high-pressure vacuum switch cabinet for metro

An intelligent inflatable high-pressure vacuum switch cabinet for a metro comprises a low-pressure chamber, an upper mechanism operation chamber, a lower mechanism operation chamber, a lower maintenance chamber, a lower pressure discharging chamber, a main bus inflating chamber, a cable mounting chamber, a vacuum circuit breaker inflating chamber and a rear pressure discharging chamber. The intelligent inflatable high-pressure vacuum switch cabinet is characterized in that a main conductive return circuit is sealed in the main bus inflating chamber and the circuit breaker inflating chamber, each of the inflating chambers is provided with one three-position isolating / earthing switch inside, and the main bus inflating chamber and the circuit breaker inflating chamber are electrically connected via a middle connector. Under overhauling condition or outage condition, the two three-position isolating / earthing switches can be earthed to effectively protect safety of maintainers during maintaining. When serious fault happens to the circuit breaker chamber which cannot be overhauled on site, the three-position isolating / earthing switch of the main bus inflating chamber can be separated, relative connecting pieces can be removed, the vacuum circuit breaker inflating chamber can be drawn out and replaced by a spare separation chamber, power supply can be quickly recovered, and the critical defects that a single air-chamber switch cabinet cannot be maintained on site and outage time is long are overcome.
Owner:HUNAN FENGRI ELECTRIC GROUP

Three-position switch

InactiveCN102983017ALittle movement dispersionImprove controllabilitySwitch power arrangementsEngineeringMagnet
The invention discloses a three-position switch. The switch comprises a vacuum extinction chamber and a tristable permanent magnetic operating mechanism, wherein the vacuum extinction chamber and the tristable permanent magnetic operating mechanism are connected, the vacuum extinction chamber comprises a moving end conductive rod, the permanent magnetic operating mechanism (7) comprises a fixing iron core (21), a moving iron core (23), an upper drive coil (22), a middle drive coil (24), a permanent magnet (25), a lower drive coil (26) and a drive rod (20) which is connected to the moving iron core (23), the fixing iron core (21) is provided with an inner cavity, the inner cavity comprises an upper end face, a lower end face and a cylindrical moving iron core moving space arranged between the upper end face and the lower end face, two ends of the drive rod (20) extend out of the fixing iron core, and the moving iron core (23) can be arranged in the moving iron core moving space in a moving mode and is provided with a first working position, a second working position and a third working position.
Owner:BEIJING ELECTRIC POWER RES INST HUAYUANELECTRIC POWER TECH +1

Intelligent traffic speed control system

The invention discloses an intelligent traffic speed control system, which is used for further ensuring traffic safety. The system comprises a vehicle-mounted unit and a roadside unit. The roadside unit comprises a setting module and a wireless signal transmitting module, wherein the wireless signal transmitting module is used for transmitting a limit speed set by the setting module to a wireless signal receiving module of the vehicle-mounted unit. The vehicle-mounted unit comprises the wireless signal receiving module, a signal processing module and a speed regulating module, wherein the signal processing module is used for acquiring the limit speed from the wireless signal receiving module, acquiring a current own speed, then comparing to judge whether the current own speed is within the range of the limit speed, and instructing the speed regulating module to regulate the speed until the own speed is within the range of the limit speed if the current own speed is not within the range of the limit speed. The intelligent traffic speed control system is reliable and intelligent and can be widely applied to highways, national roads, traffic light monitoring areas, military areas, schools and other densely populated commercial areas or communities.
Owner:马宪华

Method for adjusting welding parameters based on large step pitch calibration and Newton interpolation

The invention relates to a method for adjusting welding parameters based on large step pitch calibration and local Newton interpolation, which comprises the steps of: automatically generating parameters of other working points in the interval by means of Newton interpolation with a plurality of calibration working point parameters with good welding effect to achieve continuous adjusting effect and supplement the deficiency of discretized segmented adjustment of a digital welding power supply; and raising welding parameter storage modes of different attribute priorities according to different parameter generating manners to optimize the welding parameters. By using the invention, parameters of various welding processes such as CO2 welding and P-GMAW (Pulse-Gas Metal Arc Welding) and the like are generated automatically and used for welding, so that the process is stable and the weld joint is formed well. The method can realize the coverage of the welding parameters, realize the automatic learning function of a digital welding machine so that the welding parameters are more favorable as being used further, thereby meeting the requirements of intelligentization of the digital welding machine.
Owner:EAST GRP CO LTD

Modular intelligent box type fixed inflatable high-voltage AC metal enclosure switching equipment

The invention discloses modular intelligent box type fixed inflatable high-voltage AC metal enclosure switching equipment. The equipment comprises a cabinet body and multiple functional chambers located in the cabinet body. The multiple chambers comprise a low-voltage meter chamber, a vacuum circuit breaker, a three-position switching mechanism operating chamber, a bus chamber, a three-position mechanism operating chamber, an accessory and tool chamber, a master bus pressure relief chamber, a cable and mutual inductor installation chamber, a master bus inflation chamber and a circuit breaker inflation chamber. The low-voltage meter chamber, the vacuum circuit breaker, the three-position switching mechanism operating chamber, the bus chamber, the three-position mechanism operating chamber and the accessory and tool chamber are sequentially arranged in the front end of the cabinet body from top to bottom. A pressure relief passage of the circuit breaker chamber is arranged in the back end of the cabinet body. The circuit breaker inflation chamber is located on the upper rear portion, corresponding to the vacuum circuit breaker and the three-position switching mechanism operating chamber, of the cabinet body, and the circuit breaker inflation chamber is inflated with insulation gas. The equipment has the advantages of being reliable in sealing, convenient to install and repair, safe and reliable, intelligent in function, and the like.
Owner:CHANGGAO ELECTRIC GROUP CO LTD

Serial hydrogen and oxygen concentration and temperature and humidity simultaneous measurement system

The present invention discloses a serial hydrogen and oxygen concentration and temperature and humidity simultaneous measurement system. The system comprises a broadband light source, a 3bB coupler, afirst LPFG, a second LPFG, a spectrum analyzer, a computer and a PCF. The system mainly solves the oneness and mutual cross sensitivity of different parameters of an optical fiber gas sensor when thegas physical parameters are measured and intelligence and automation of the monitoring work of the optical fiber gas sensor. In the experiment process, a sensitive optical fiber receives the change of outside parameters and can indirectly calculate the change of the parameters in the surrounding of the sensitive optical fiber from the change of the spectrum from a spectrograph so as to achieve the purpose of parameter measurement. Two gas measurement sensitive probes for the hydrogen and the oxygen and sensitive probes for measurement of the temperature and the humidity are respectively designed in the experiment so as to achieve the automatic, real-time and intelligent measurement of the parameters such as the hydrogen, the oxygen, the temperature and the humidity.
Owner:BEIJING UNIV OF TECH

Opening and closing transmission device with clutch function, and breaker

The invention discloses an opening and closing transmission device with a clutch function, and a breaker. The device includes a shell, and a driving motor, a breaker handle mechanism and a gear transmission mechanism that are arranged in the shell, and a shifting lever switching structure; the shifting lever switching structure comprises a shifting lever part and a linkage part, the linkage part can move between the first driven gear and the second driven gear in a cooperated reciprocating telescoping mode under the driving of the shifting lever part, and has a first position state enabling the first driven gear and the second driven gear to form a coaxial linkage fit, and a second position state enabling the first driven gear and the second driven gear to release the linkage relation. Theshifting switching structure can overcome the problem that the breaker handle cannot be shifted due to clamping and blocking, manual and automatic mode switching can be truly realized without being controlled by an external power supply, the control system is simplified, the manufacturing cost is saved, the use is convenient, and the usability of the product is improved.
Owner:温州市正松电气有限公司

Pulse power type permanent magnet linear motor (PMLM) operating mechanism of high-voltage circuit-breaker

The invention relates to a pulse power type permanent magnet linear motor (PMLM) operating mechanism of a high-voltage circuit-breaker, belonging to the technical field of a high-voltage circuit-breaker operating mechanism in power transmission and transforming equipment. The operating mechanism comprises a primary iron core, secondary iron cores, motor main shafts and armature windings; wherein,the primary iron core is internally provided with the two symmetrical secondary iron cores, magnetic isolation material is arranged between the two secondary iron cores, one end of every secondary iron core is connected with one motor main shaft, and the armature windings are embedded into the secondary iron cores; the magnetic isolation material is also arranged between the primary iron core andthe end surfaces of the secondary iron cores, and a permanent-magnet is arranged between the side of each secondary iron core and the primary iron core. The invention has the advantages that the particularity of the breaking-closing position is fully considered by the design of the structure of the operating mechanism, so that the magnetic isolation material is particularly designed; the permanent-magnet block is arranged above the static primary iron core; meanwhile, in order to produce larger electromagnetic thrust, the starting time is short, so that higher dynamical property requirement can be reached, thus being well matched with the characteristic requirements of the circuit-breaker.
Owner:SHENYANG POLYTECHNIC UNIV

Physical evidence transfer box and using method thereof

The invention relates to a physical evidence transfer box and a using method of the physical evidence transfer box. The transfer box is provided with a communication module, a positioning module, a microcontroller, a video collection module, an opening-closing control module, an intelligent charging module and a two-dimensional code / bar code module. The communication module, the positioning module, the video collection module, the opening-closing control module and the two-dimensional code / bar code module are all electrically connected with the microcontroller. The using method of the physicalevidence transfer box comprises the steps that a user inputs authentication information through a touch display screen of the video collection module, information is confirmed, verification codes areinput, and a box opening instruction is sent to a background system for verification; the opening-closing control module receives the instruction of the microcontroller to carry out box opening-closing action on the transfer box; the video collection module monitors the opening condition of the transfer box, and uploads the condition to the background system to obtain video information; and the communication module and the positioning module are used for positioning the transfer box to monitor the position of the transfer box. The physical evidence transfer box can manage user information andhas the functions of equipment positioning, man-machine interaction and monitoring.
Owner:SHAANXI YUXIN TECH DEV

Multimedia data playing method and system and equipment

The invention discloses a multimedia data playing method and system and equipment. According to the method, the system and the equipment, through interaction between a mobile terminal and a playing device, the mobile terminal determines a preset playing parameter corresponding to multimedia data according to to-be-identified information of the multimedia data currently played by the playing deviceand then sends the preset playing parameter to the playing device, so the playing device plays the currently played multimedia data according to the preset playing parameter. Through application of the multimedia data playing method and system and the equipment provided by the invention, a user can carry out preset playing parameter editing and processing on the watched multimedia data through the mobile terminal and stores the preset playing parameter to the mobile terminal, and when the user watches the multimedia data again, the multimedia data can be played at the same time through the preset playing parameter pre-stored in the mobile terminal, so the interaction between the user and the playing device is improved, an intelligent demand of the user is satisfied, and the user experience is improved.
Owner:孙新峰

Unmanned parking system based on automatic valet parking technology

The invention discloses an unmanned parking system based on an automatic valet parking technology. The system comprises a mobile terminal with a built-in APP, a vehicle-mounted camera, a master control system, a parking planning network system based on V2R and V2I technologies, and a parking lot monitoring assembly arranged in a parking lot. The parking lot monitoring assembly comprises a parkinglot camera and a sensor. The parking lot camera is used for collecting real-time condition information in the parking lot. The vehicle-mounted camera is used for collecting road condition informationin the driving process of a target vehicle. The sensor comprises a laser distance sensor used for collecting the distance between a target vehicle and an obstacle. The parking planning network systembased on the V2R and V2I technologies carries out path analysis and sends a path analysis result to the master control system, and the master control system calculates at least one vehicle parking / picking-up scheme and sends all planned schemes to an APP of a user mobile terminal for a user to select. Automatic parking and automatic vehicle taking of the vehicle are achieved.
Owner:SOUTH CHINA UNIV OF TECH

Method for automatically generating CIME file based on transformer substation monitoring information table

The invention relates to a method for automatically generating a CIME file based on a transformer substation monitoring information table. The method is mainly and technically characterized by comprising the steps: formulating a data structure of the CIME file; obtaining remote signaling, remote measuring and remote control data by reading a transformer substation monitoring information table; checking the accuracy of the transformer substation monitoring information table; establishing a monitoring information structured model relationship; automatically splitting, analyzing and processing the data in the monitoring information table, and storing the data in a CIME file template; supplementing information which cannot be obtained through the monitoring information table through manual intervention data; integrating the information and generating a CIME file; and checking and identifying the generated CIME file. According to the invention, through reutilization of existing information,the manual workload is greatly reduced, the accuracy of data entry is improved, the requirements of informatization and intellectualization of a power grid are met, the working efficiency is improved, the labor cost is saved, and the method can be widely applied to knowledge in the fields of standard management of monitoring information tables, intelligent generation of CIME files, automatic management and the like.
Owner:STATE GRID HEBEI ELECTRIC POWER CO LTD

Monitoring method and device for conference service application system

The invention relates to the technical field of conference service monitoring systems, and discloses a monitoring method of a conference service application system, which comprises the following steps that: a reporter creates an issue, uploads issue data, edits and sends a conference short message notification, and sets an office platform message prompt; the environment equipment is adjusted to a conference mode, the display equipment is raised and started, and a user center logs in a unified account; a conference record and conference summary template is imported to performg sign-in and statistics and perform audio and video recording; in the review process, materials can be labeled and shared, multi-terminal information sharing, online note taking and sharing, item approval and electronic file retrieval can be carried out; the voice recognition result is edited and corrected, and the listing person can log in through a pop-up window; and timing statistics and multi-dimensional data statistics are carried out, and watermarks are overlaid on the materials. The problems that a conference service application system is not intelligent enough, low in efficiency, non-standard, time-consuming and labor-consuming in a modern conference, and consequently monitoring is very inconvenient are solved.
Owner:南北联合信息科技有限公司

Automatic zooming method, device and equipment of electronic camera equipment and storage medium

The invention provides an automatic zooming method and device of electronic camera equipment, equipment and a storage medium. The method comprises the following steps: acquiring a current object distance, wherein the current object distance is an actual distance between a central point of a lens of the electronic camera equipment and a monitoring target actually scanned in an imaging view field ofthe camera; calculating an observation multiplying power according to the current object distance and preset observation precision; and if the observation multiplying power is not equal to the current multiplying power, adjusting the multiplying power of the electronic camera equipment to be the observation multiplying power. Therefore, in the whole process, a user does not need to perform zooming manually, zooming is automatically performed by the electronic camera equipment, and the requirements of intelligence and real-time performance are met.
Owner:ZHEJIANG DAHUA TECH CO LTD

Multifunctional tree climbing mechanism

The invention discloses a multifunctional tree climbing mechanism. The multifunctional tree climbing mechanism comprises a slideway, sliding blocks, which move on the slideway, and mechanical grippersinstalled on the sliding blocks, wherein the mechanical grippers hold a trunk, and are driven by the sliding blocks to climb the trunk; a pesticide spraying device is arranged on the top of the slideway, and is used for spraying a pesticide onto a tree; a sawing device is arranged on a side portion of the slideway, and is used for conducting trimming work on the tree; and a camera is installed ona side portion of the slideway, and is used for monitoring a working site. The multifunctional tree climbing mechanism can feed back conditions in real time, thus supervision is facilitated, workingis safe and reliable, and work of climbing trees for check, spraying pesticides and conducting trimming can be conducted on the trees with different heights and thickness. By means of the multifunctional tree climbing mechanism, the requirements of urban tree check work of continuation, standardization, intelligence and less manpower can be well met, working is made to be more convenient, the reliability and the working efficiency are improved, the labor cost is saved, time and energy are saved, and the working strength is reduced.
Owner:张语骞

Heat pipe type ventilation and heat recovery device

The invention relates to a heat pipe type ventilation and heat recovery device, and belongs to the technical field of ventilation equipment. When the indoor air is dirty and the pollutant concentration is high, an indoor exhaust fan is started, and after the indoor air is entered into heat recovery core bodies, an outdoor exhaust fan is started to enable the outdoor air to flow into a room to sendfresh air; and a hot fluid and a cold fluid pass through an exhaust passage and an air inlet passage in a circulated mode to form an air replenishment and exhaust cycle, and after a plurality of airreplenishment and exhaust cycles are performed, the fans stop operating when the indoor pollutant concentration is reduced to a certain value. The heat pipe type ventilation and heat recovery device promotes the popularization of energy-saving and consumption-reducing devices, and satisfies the requirements of comfort, energy saving and intelligence; and a complete machine of the heat pipe type ventilation and heat recovery device is installed on an indoor wall, the appearance of the room is not affected, drawing of a curtain is not affected, the cost is low, automatic adjustment is achieved,the occupied space is less, the structure is simple, the operation is convenient, outdoor dust and noise pollution are avoided, indoor air quality is improved, and the purpose of energy saving is achieved.
Owner:闫博文

Lighting device, voice communication system and voice communication method based on device

The invention provides a lighting device, a voice communication system and a voice communication method based on the device. The lighting device comprises a voice detection module, a main control module, a light emitting module and a communication module, wherein the main control module is respectively electrically connected with the voice detection module, the communication module and the light emitting module; the voice detection module is used for detecting a voice signal and sending the detected voice signal to the main control module; the main control module is used for recognizing the voice signal and generating a control signal corresponding to the voice signal and sending the control signal corresponding to the voice signal to the communication module, and the control signal corresponding to the voice signal carries an identifier of a to-be-controlled terminal device; the communication module sends the control signal corresponding to the voice signal to the to-be-controlled terminal device; and the main control module is also used for controlling the light emitting module to emit light. According to the lighting device provided by the invention, control on the to-be-controlled terminal device is realized, and intelligent requirements on the lighting device by the user can be met.
Owner:SENGLED CO LTD

Intelligent building management system

The invention discloses an intelligent building management system, which comprises a monitoring center and a house theft prevention module, an access control module, a smoke detection module, a fire extinguishing module, a mobile terminal, a sound-light alarm and a monitoring video display screen connected with the monitoring center, wherein the monitoring center is arranged in a property management office for managing the whole building; the house theft prevention module is arranged in each room for monitoring the room and preventing a theft in the room; and the access control module comprises a radio frequency card reader and an automatic door connected with the radio frequency card reader. According to the intelligent building management system provided in the invention, the modules inthe building monitoring system can be connected to form an all-direction coverage monitoring network, and besides, through connecting the house theft prevention module and the monitoring center, whentheft happens, the theft information can be timely transmitted to the monitoring center, and necessary household losses can thus be avoided.
Owner:JIANGSU CHINA SCI INTELLIGENT ENG

Self-service shopping method, computer-readable storage medium, terminal device and device

The invention provides a self-service shopping method, a computer-readable storage medium, a terminal device and a device. The method comprises receiving different goods IDs and their positioning information and goods information in the shopping environment in real time; generating a payment order according to the selected goods, wherein the payment order includes the goods information; selectinga third-party payment platform to complete the order payment. As the different item ID and the positioning information thereof in the shop environment are received in real time, goods information canbe obtained in advance, at the same time, the position of the purchased good in the shopping environment can be easily found according to the positioning information, a payment order containing the goods information is generated according to the selected goods, and a third-party payment platform is selected to complete the order payment; according to the shelf-life of the goods information, a shelf-life reminder can be realized, thereby avoiding consumers easily forgetting to use the goods within the shelf-life as soon as possible after the purchase.
Owner:栾德洋

Self-powered intelligent door/window

The invention relates to a door / window, in particular to a self-powered intelligent door / window. The problems that existing intelligent doors / windows are all supplied with external electricity, the electricity consumption amount is large, and the doors / windows can not be opened when accidents occur and electricity and water are cut off are solved. A motor is fixed to a door / window sash composed of a sash frame and door / window base materials through bolts and connected with a motor gearbox through a connector; a rack is connected with the lower side of a door / window frame in an inserted mode and engaged with a gear inside the motor gearbox; limiting switches are fixed to the upper end and the lower end of the door / window frame respectively; a switch contact and a control box are both arranged on the door / window frame; a sensor group is located on two sides of the door / window frame; a sliding ball supporting frame is used for fixing sliding balls; a door / window frame sliding rail is located on the door / window frame to limit sliding of the sliding balls; a generation device comprises a fixing end, a solar electromagnetic panel, an electromagnetic panel supporting frame, a fixing supporting frame, a micro motor and a micro gear; a control system is composed of the sensor group, a microprocessor unit (MPU) and a storage battery. The self-powered intelligent door / window is used for the field of doors / windows of buildings.
Owner:HARBIN INST OF TECH

Valve structure and household appliance

The invention discloses a valve structure and a household appliance. The valve structure comprises a valve seat and a switch valve. The switch valve is mounted on the valve seat. A fluid channel, an air inlet and an air outlet are formed in the valve seat. The fluid channel comprises a first channel and a second channel. The first channel is communicated with the air outlet and the air inlet, andthe second channel is communicated with the air outlet. The switch valve comprises a movable part. The switch valve is configured to selectively enable the movable part to be in the first position orthe second position under the control of an electric signal, the movable part blocks the connection between the second channel and the air inlet when located in the first position, and the movable part enables the second channel to be communicated with the air inlet when located in the second position. According to the valve structure, the switch valve can enable the movable part to be located indifferent positions under the control of the electric signal to control whether the second channel is communicated with the air inlet or not, and then control over different fluid flow rates of the air outlet is achieved, so that the application range of the valve structure is wider, and the intelligent requirement of people on the valve structure is met.
Owner:FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG

Attendance checking method based on voice recognition

The invention relates to an attendance checking method based on voice recognition. Acquiring a voice signal of a user and an collection moment of the voice signal; voiceprint recognition is carried out on the voice signal; obtaining a target voiceprint, inputting the target voiceprint into a locally preset identity database, obtaining user identity information corresponding to the target voiceprint, sending the user identity information to a cloud server; and receiving the historical attendance record of the user sent by the cloud server, obtaining the attendance record according to the collection moment of the voice signal, updating the historical attendance record according to the attendance record to obtain a target attendance record, uploading the target attendance record to the cloudserver, and displaying the target attendance record on a screen. According to the attendance checking method, the intelligent degree of the attendance checking mode based on voice recognition is greatly improved, the requirement of people for intelligence can be met, attendance checking records can be prevented from being lost, and the safety of attendance checking data is improved.
Owner:郑州智利信信息技术有限公司

Variable-frequency speed-regulation all-in-one machine for coal mine

The invention provides a variable-frequency speed-regulation all-in-one machine for a coal mine, and belongs to the technical field of variable-frequency motors. The variable-frequency speed-regulation all-in-one machine for the coal mine comprises a shell, a motor, a frequency converter, a wire inlet reactor, a water cooling heat dissipation structure, an air cooling heat dissipation structure, atemperature sensor and an industrial personal computer, wherein the frequency converter is arranged at the top of the shell and electrically connected with the motor and the wire inlet reactor whichare arranged in the shell, the water cooling heat dissipation structure comprises a turn-back type water channel, a water tank and a water pump which are arranged outside the motor, the air cooling heat dissipation structure is a cooling fan fixedly arranged inside the shell, the temperature sensor is arranged outside the shell, and the industrial personal computer is connected with the water pump, the cooling fan, the temperature sensor and the frequency converter and used for controlling work the of the variable-frequency and speed-regulation all-in-one machine. The variable-frequency and speed-regulation all-in-one machine for the coal mine is good in insulation and heat dissipation performance, strong magnetic interference can be resisted, the reliability of equipment is improved, andthe service life of the equipment is prolonged.
Owner:SHANDONG UNIV OF SCI & TECH

Unmanned refueling system for underground explosion-proof vehicle

The invention discloses an unmanned refueling system for an underground explosion-proof vehicle. The unmanned refueling system comprises a control center system, a monitoring system, an oil supply system, a refueling machine vehicle and a positioning navigation system. After the refueling machine vehicle is filled with oil from an oil tank of an oil supply system through a hydraulic pump, the refueling machine vehicle is matched with a carrying camera for visual identification obstacle avoidance according to the planned path and moves to a refueling working point. After the refueling work is finished, the refueling machine vehicle is controlled to return to a refueling station to supplement fuel and have a rest or continue to execute a new task issued by the unmanned refueling system. According to the unmanned refueling system for the underground explosion-proof vehicle, refueling work can be accurately completed through linkage and intelligent control, operation is smooth and rapid, the workload of workers is reduced, the working efficiency is greatly improved, the speed is high, the cost is low, the labor intensity is low, reliability is high, the problems of low efficiency, highlabor intensity, poor reliability and the like in the existing coal mine environment with complex geological conditions are solved, the on-site working conditions are greatly improved, and the requirements of an intelligent working mode are met.
Owner:LIAONING TECHNICAL UNIVERSITY

Feeder terminal for intelligent power distribution network

The invention relates to the field of intelligent equipment for power transmission and distribution. The invention provides a feeder terminal for an intelligent power distribution network. The feeder terminal comprises a CPU (central processing unit) control module, an electricity quantity acquisition module, a switching value input / output module, a wireless communication module, a data storage module and a power supply module, wherein the electricity quantity acquisition module, the switching value input / output module, the wireless communication module, the data storage module and the power supply module are connected with a CPU terminal; the wireless communication module is connected with the power supply module; the CPU terminal is an ARM processor. The feeder terminal based on solar energy and the ARM processor and provided by the invention has the advantages that the functions of acquiring, processing and storing electricity quantity in real time, monitoring and controlling switch on-off state, monitoring power supply voltage, performing wireless communication and the like are realized; by adoption of a wireless network data transmission technology, the trouble from cables is prevented, the data transmission cost is lowered, and the flexibility and anti-interference performance of the equipment are improved; the solar energy is adopted for supplying power, so that the situation that a monitoring terminal of the feeder terminal cannot work due to line fault is prevented.
Owner:SUZHOU EAST CHINA ELECTRIC NETWORK ELECTRICAL

Intelligent detection system and intelligent detection method applicable to alternating-current plugs

The invention discloses an intelligent detection system and an intelligent detection method applicable to alternating-current plugs. The intelligent detection system comprises an alternating-current test source, a test bench, a signal input cable, a load bearing component and a data processing unit. The test bench is provided with an accommodating slot, a first socket with a strong electrical signal input terminal, and a second socket with a weak electric signal output terminal. One end of the signal input cable is connected with the output end of the alternating-current test source, and the other end of the signal input cable is connected with the corresponding strong electric signal input terminal. When a to-be-tested alternating-current plug is pushed into the accommodating slot in thetest bench, an input terminal of the to-be-tested alternating-current plug is connected with the corresponding strong electric signal input terminal, and an output terminal of the to-be-tested alternating-current plug is connected with the corresponding weak electric signal output terminal. The data processing unit is connected with the corresponding weak electric signal output terminal of the second socket through a signal output cable, and acquires, calculates and processes signals converted by the alternating-current plugs. The intelligent detection system does not require manual connectionand disassembly of test wires of the plugs, so that the production and test efficiency of mass production of the alternating-current plugs can be remarkably improved.
Owner:NANJING NARI GROUP CORP
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