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246results about How to "Rigorous structure" patented technology

Fatigue driving detecting system and method based on human eye and wheel path characteristics

The invention discloses a fatigue driving detecting system based on human eye and wheel path characteristics. The system comprises a vehicle terminal information processing module, a GPS (Global Position System) module, a wireless communication module and a vehicle monitoring management center, wherein the vehicle terminal information processing module comprises a CCD (Charge Couple Device) camera image acquisition module, data storage equipment, an alarm module and an embedded microprocessor; the vehicle terminal information processing module is located inside a vehicle and is used together with the GPS module for the information collection and processing of a terminal; the processed information exchanges data with the vehicle monitoring management center by the wireless communication module so as to realize the remote control on the vehicle terminal by the vehicle monitoring management center. The invention also relates to a fatigue driving detecting method based on human eye and wheel path characteristics. The method comprises eye state real-time monitoring, image conversion, wheel path judgment and skin color sampling. The modular design is adopted, the structure is simple, the anti-jamming capacity is strong, the applicability is wide, the GPS wheel path characteristic detection is added, and double precautions against fatigue driving are realized.
Owner:GUANGZHOU HONGHUI ELECTRONICS S & T

Error amount value verification device and error amount value transfer method of digital electric energy meter

The invention discloses an error amount value verification device and an error amount value transferring method of a digital electric energy meter, belonging to the field of error metering of the digital electric energy meter. The verification device comprises a three-phase alternating current verification power supply, an electric energy pulse error comparator and a modular standard electric energy meter; the modular standard electric energy meter comprises a signal conditioning module, an A/D conversion module, a signal processing module, a digital communication module and an electric energy pulse output module as well as an interface circuit; and a verification system comprises the verification device and a verified digital electric energy meter. The error amount value transferring method of the digital electric energy meter comprises the step of: downwardly transferring or upwardly tracing the error amount value. The error amount value verification device, the verification system and the transferring method of the digital electric energy meter in the invention have the advantages of perfect design concept, rigorous design theory, rational equipment structure, convenient operation, simpleness and practicability, belong to the innovative achievement in the digital electric energy metering field, make extension and contribution for enhancing the accuracy and the modernizationlevel of the electric energy metering of China and establishing the new system of the digital electric energy metering, and are worth to be adopted and popularized.
Owner:ACCUPOWER ELECTRONIC TECH CO LTD OF TAIYUAN

Inclined shaft (roadway) transportation human-oriented safety monitoring and training system in mining area and manufacturing method

InactiveCN102419925ASolve learning problemsSolve the problems existing in enterprise staff trainingEducational modelsHuman bodyVideo monitoring
The invention relates to an inclined shaft (roadway) transportation human-oriented safety monitoring and training system in a mining area and a manufacturing method; the inclined shaft (roadway) transportation human-oriented safety monitoring and training system comprises an inclined shaft (roadway) transporting environment, power-driven car arrestors, a safety gate, a voice communication device, a stay wire interlocking device, an infrared human body detecting sensor, a video monitoring system, a PLC (Programmable Logic Controller) and a configuration software monitoring system; the power-driven car arrestors, the safety gate, the voice communication device, the stay wire interlocking device, a camera and the sensor are arranged in an inclined shaft (roadway); all the devices are connected with the PLC by using a field bus; the PLC is used for carrying data processing and logical operation; an optical fiber is used for transmitting data to a computer; the configuration software operates to carry out dynamic display and monitoring; and therefore, the closed inclined shaft transportation is realized, and vehicle passing without permission of person passing and person passing without permission of vehicle passing are ensured. The mechanical parts are designed according to a reducing scale, and electrical parts are actually industrial components, thereby the inclined shaft (roadway) transportation human-oriented safety monitoring and training system is really represented; and the inclined shaft (roadway) transportation human-oriented safety monitoring and training system is reasonable in design, compact in structure, advanced in technology and convenient to use and is suitable for being used for experiment training in colleges and universities and training for workers and staffs of enterprises.
Owner:TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE +1

Method and system for generating and verifying dynamic passwords

The invention relates to a system and method for generating and verifying dynamic passwords. A user terminal and an intelligent lock are connected through a wireless network; a dynamic password serveris respectively connected with the user terminal and the intelligent lock through the wireless network; the user terminal is used for providing application of unlocking and setting to users, and saving dynamic passwords and intelligent lock identification corresponding to the user terminal; the intelligent lock is used for controlling unlocking according to the unlocking information transmitted by the user terminal and control signals of the dynamic password server, and storing the dynamic passwords and intelligent lock identification corresponding to the intelligent lock; the dynamic password server is used for performing data interaction with the user terminal and controlling the intelligent lock to unlock. According to the system, the dynamic password generation process has a precise structure and is closely associated with the user terminal and the intelligent lock, so that the dynamic passwords cannot be easily cracked, the authorization security is improved, and meanwhile, operation load is no more increased.
Owner:JIANGSU HENGBAO INTELLIGENT SYST TECH CO LTD

Toxic gas boundary monitoring and tracking method based on double-layer mesh model in wireless sensor network

The invention relates to a toxic gas boundary monitoring and tracking method through a wireless sensor network. The method includes three steps of (1) dividing a double-layer mesh model by firstly dividing the whole screen into a plurality of coarse-grained first-stage meshes respectively forming a first-stage cluster and then dividing every first-stage mesh into a plurality of fine-grained second-stage meshes respectively forming a second-stage cluster; (2) recognizing a boundary node by reporting to the second-stage cluster which a node belongs to when a sensing state of the node changes and recognizing the boundary node according to node state distribution information of the second-stage cluster through the second-stage cluster; (3) tracking an objective boundary by dynamically tracking of the objective boundary according to the node state distribution information of the second-stage cluster through the second-stage cluster. By means of the toxic gas boundary monitoring and tracking method through the wireless sensor network, the monitoring and tracking for toxic gas can be effectively achieved, the amount of information transmission in a boundary recognition phase is reduced, the process of transmission of boundary information to a base station is optimized, the network energy is saved, and the life cycle of the network is prolonged.
Owner:HOHAI UNIV CHANGZHOU

Device for testing dynamic sand-carrying crack expansion of low permeability reservoir

ActiveCN107941672ATo achieve the purpose of dynamic expansion testEasy to operateEarth material testingPermeability/surface area analysisControl systemModel system
A device for dynamically testing the dynamic sand-carrying crack expansion of a low-permeability reservoir simulates the actual dynamic sand-carrying process during hydraulic fracturing in order to provide a system device for monitoring the dynamic sand-carrying crack expansion process of the low-permeability reservoir and measuring the dynamic diversion capability of the crack, and the experimental device comprises a gas supply system, an injection system, a model system, a closed pressure control system, a metering system and a backpressure control system. The device can monitor the sand-carrying crack expansion process of a propping agent in the fracturing process in real time, and also can realize the true simulation of the change of the crack diversion capability, caused by the propping agent, in the hydraulic fracturing process of the shale gas reservoir under different closed pressures and the calculation of a corresponding crack diversion capability value. The device has the advantages of strong operability, strict structure, realization of real-time monitoring of the sand-carrying crack expansion process of the propping agent in the fracturing process, and realization of accurate measurement of the true value of the crack diversion capability in the dynamic sand-carrying process.
Owner:CENT SOUTH UNIV

Emergency stop control system based on drilling machine integrated control

The invention discloses an emergency stop control system based on drilling machine integrated control. The emergency stop control system based on drilling machine integrated control comprises an integrated control system action emergency stop assembly and an integrated control system power emergency stop assembly. The integrated control system action emergency stop assembly is connected with a corresponding sub-equipment emergency stop system. The integrated control system power emergency stop assembly is connected with a hydraulic station motor and a power generator respectively. The integrated control system action emergency stop assembly comprises an action safety relay, expansion modules of the action safety relay, a main driller action emergency stop button, an auxiliary driller action emergency stop button and a master site emergency stop button. The integrated control system power emergency stop assembly comprises a power safety relay, expansion modules of the power safety relay, a main driller power emergency stop button and an auxiliary driller power emergency stop button. The whole emergency stop control system is arranged from top to bottom and is rigorous in structure, emergency stop switches in all levels are clear in labor division, a pyramid-type emergency stop structure is formed, and therefore the emergency stop control system is safe and reliable.
Owner:BAOJI PETROLEUM MASCH CO LTD +2

Fresh food supply chain knowledge graph construction method based on semi-structured data

The invention provides a fresh food supply chain knowledge graph construction method based on semi-structured data, which is used for collecting and processing the semi-structured data to achieve thepurposes of effectively integrating the existing data resources and exploring the intrinsic data value of massive information, so that a high-quality knowledge graph with a rigorous structure and a complete system is constructed. Semi-structured data in a webpage where a target is located are crawled by utilizing a webpage crawler technology, so that the data acquisition efficiency is improved; aplurality of pieces of structured data containing entity names and entity attributes are obtained by means of a regular expression, so that the constructed knowledge graph is more scientific and accurate; the structuralization is converted into an RDF triple form by using a structuralization data mapping tool D2RML which is convenient for a user to use and understand; mapping from RDF triple datato a graph data structure is achieved, fresh food supply chain data are stored in a Neo4j graph database, and the problems that the fresh food supply chain data size is large, the data value density is low, and the updating speed is high are solved.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY

Shared emotional disclosure room

InactiveCN108447222ARealize sharing and interconnectionEasy to useDiagnostic recording/measuringSensorsThe InternetPsychological health
The invention relates to a shared emotional disclosure room and belongs to the technical field of psychological health and emotional disclosure equipment. According to the equipment, display screens capable of displaying various pictures are arranged on the six sides of a room. In this way, the emotional disclosure room can be shared through the internet. In this way, when a person enters the roomthrough scanning a two-dimensional code arranged on the door of the emotional disclosure room, the person can beat up dummies in the room. Corresponding photos are displayed on the display screens onthe faces of dummies. At the same time, a voiceprint recognition technology-based device is used for acquiring sound characteristics and an intelligent bracelet is used for detecting life characteristics. A camera is used for collecting the activity condition to detect the specific emergency situation of an emotional disclosure person in real time, and the detected information is transmitted to acomputer in real time. After the person leaves the room, the computer generates an emotional disclosure report, sends the emotional disclosure report to a code-scanning mobile phone and updates the usage condition of the room. As a result, a new user can enter the room and enjoy the service. According to the invention, the diversification of structural design is realized through the acoustic, image and shape combination technology and the internet technology. The shared emotional disclosure room is intelligent, rigorous, high in functionality, good in effect, and more effective in comparisonwith a common emotional disclosure device.
Owner:昆明创培知识产权服务有限公司

Multifunctional hydraulic companding wheel

The invention discloses a multifunctional hydraulic companding wheel which comprises a rotation shaft, a hub and an outer wheel. The multifunctional hydraulic companding wheel is characterized in that a hydraulic device capable of companding is connected between a shaft hole of the hub and the outer wheel, the hydraulic device comprises a hydraulic driving piece and a hydraulic support piece, the hydraulic driving piece comprises a hydraulic ring and a hydraulic mouth, the hydraulic ring is arranged on the outside of the shaft hole, and the hydraulic mouth is fixed on the hydraulic ring. The hydraulic support piece comprises a hydraulic cylinder, a hydraulic rod and a support fork, one end of the hydraulic cylinder is arranged on an excircle lateral side of the hydraulic ring and communicated with a hydraulic hole on the hydraulic ring, the other end of the hydraulic cylinder is sleeved with the hydraulic rod, one end of the support fork is connected with one end of the hydraulic rod, and the other end of the support fork is connected with an inside of the outer wheel. The excircle lateral side of the hub is fixed on the hydraulic cylinder, the outer wheel is in a same-arc-multiple-joint mode, and a high-strength arc metal piece is arranged on one side of the outer wheel connected with the support fork. The multifunctional hydraulic companding wheel is exquisite in design technique structure, various in function, convenient to operate, energy-saving, environment-friendly, durable and obvious in economic benefit and social benefit.
Owner:LIUZHOU JINGYANG ENERGY SAVING TECH RES DEV

Preparation containing herba violae, rhizoma cyperi and herba leonuri and preparation method and detection method thereof

The invention discloses a preparation containing herba violae, rhizoma cyperi and herba leonuri and a preparation method and a detection method of the preparation. The preparation is prepared by the following raw materials in parts by weight: 500-700 parts of perfoliote knotweed herb, 500-700 parts of herba violae, 500-700 parts of red rhizoma smilacis glabrae, 400-600 parts of cortex phellodendri, 300-500 parts of herba leonuri, 300-500 parts of caulis sargentodoxae, 300-500 parts of radix sophorae flavescentis and 200-400 parts of rhizoma cyperi. Compared with the prior art, the medicine provided by the invention is few in components, rigorous in structure and exact in efficacy, and corresponds to a method of diagnosis and treatment based on syndrome differentiation treatment of traditional Chinese medicines. The provided preparation method not only reduces paste extraction rate of the traditional Chinese medicine extraction, improves contents of effective ingredients, guarantees stability of efficacy, solves the problem of poor stability and strong hygroscopicity in a preparation process, and also greatly reduces the production cost. The provided detection method is strong in specificity and accurate in detection result, and can effectively control quality of the medicine; and therefore, the clinical efficacy of the medicine is ensured.
Owner:GUIZHOU NORMAL UNIVERSITY

Hydraulic dynamic brake operating system for tractor

ActiveCN102050098AMeet the individual requirements of brakingSatisfy brakingBraking action transmissionFluid steeringFuel tankEngineering
The invention discloses a hydraulic dynamic brake operating system for a tractor. The hydraulic dynamic brake operating system mainly comprises an oil suction filter, an oil pump, an overflow valve, a check valve 1, a throttling port, a high-pressure oil filter, a liquid filling valve, a pressure gauge, an accumulator, a brake low pressure alarming switch, a dual-circuit dynamic brake valve, a left dynamic brake valve, a shuttle valve, a check valve 2, a brake taillight pressure switch, a right dynamic brake valve, a pressure setting piece and a pressure compensator. The hydraulic dynamic brake operating system is characterized in that the oil suction filter is arranged in an oil tank of the tractor; the oil pump is arranged on one side of the tractor; the oil suction filter is connected with the oil pump through an oil pipe; the liquid filling valve is arranged on one side of the tractor, and is connected with the oil pump through a pipeline; and the dual-circuit dynamic brake valve is mounted on the bottom plate of a driving cab, and is connected with the liquid filling valve through an oil pipe. The system eliminates other pumping sources by dint of the hydraulic steering system of the tractor, and fully meets the requirements on the brake of the whole tractor and the braking performance of a high-power tractor. The structure of the system is compact and meticulous.
Owner:FIRST TRACTOR

Machine with automatic feeding and discharging function for chamfering internal and external of large bar

The invention discloses a large-bar machine with an automatic feeding and discharging function. The machine comprises a workpiece automatic feeding device, a headstock and a workpiece automatic discharging device, wherein the workpiece automatic feeding device and the workpiece automatic discharging device are connected with one side of an input end of the headstock and one side of an output end of the headstock respectively, so that workpiece automatic feeding and workpiece automatic discharging are realized. According to the machine with the automatic feeding and discharging function for chamfering the internal and the external of a large bar, the input end and the output end of the headstock are provided with the workpiece automatic feeding device and the workpiece automatic discharging device respectively, so that the automation of the processes of workpiece feeding, discharging and clamping is effectively realized, the production efficiency is improved, and the labor intensity is reduced; the structure is precise, the operation is simple, the work is reliable, and the control is convenient; and the machine can be effectively adapted to rapid clamping and machining of the bars with different diameters and different lengths, so that the machining efficiency of chamfering the internals and the externals of the large bars can be improved.
Owner:ZHEJIANG PROVINCIAL SPECIAL EQUIP INSPECTION & RES INST

Rolling-wheel type scraping plate chains for coal cinder conveyor

InactiveCN102774604ALow resistanceSmall amount of wearConveyorsEngineeringCinder
The invention relates to conveying machinery, in particular to rolling-wheel type scraping plate chains for a coal cinder conveyor, comprising rolling wheels (2), an inner chain sheet (1), an outer chain sheet (8), a pin shaft (4), a scraping plate (7) and a positioning shaft (6). The pin shaft (4) penetrates through the outer chain sheet (8), the inner chain sheet (1), the rolling wheels (2), the inner chain sheet (1) and the outer chain sheet (8) in sequence; the chains are double-row chains; the scraping plate (7) is fixed on the outer chain sheet (8) on the inner side between the two rows of chains through the positioning shaft (6); each rolling wheel (2) comprises a rolling wheel body (21) and a rolling wheel rim (22); the external diameter of the rolling wheel rim (22) is larger than the external diameter of the rolling wheel body (21); the rolling wheel rim (22) is arranged on one side of the rolling wheel body (21); one side of each of the four rolling wheels (2) is provided with an edge; the rolling wheels (2) can run on guide rails (15); each rolling wheel (2) is internally provided with a bushing (3); the pin shaft (4) is externally provided with a shaft sleeve (5); and the shaft sleeve (5) is sleeve on the pin shaft (4). The scraping plate chains can convey stably. The scraping plate can keep a certain distance with the bottom of a rectangular groove, so that the frictional resistance and the abrasion loss of the scraping plate chain are both reduced, and the coal cinder conveyor can operate reliably.
Owner:SHANGHAI ELECTROMECHANICAL DESIGN & RES INST CO LTD

PVB (polyvinyl butyral) glass sandwich layer membrane sheet production line and operating method thereof

The invention discloses a PVB (polyvinyl butyral) glass sandwich layer membrane sheet production line which comprises a material burdening device, an extruding machine, a screen exchanger, a mold head, a cooling water tank, a first traction unit, a drying machine, a second traction unit, a thickness measuring instrument, a first heating and tempering unit, a first cooling unit, a second heating and tempering unit, a second cooling unit, a slitting unit, a membrane coating unit and an automatic coiling machine, wherein the extruding machine is connected with the output end of the burdening device; the screen exchanger is connected with the output end of the extruding machine; the mold head is connected with the screen exchanger through a metering pump; a materia inlet of the cooling water tank is connected with the output end of the mold head; the first traction unit is connected with the material outlet end of the cooling water tank; the drying machine is connected with the output end of the first traction unit; the second traction unit is arranged on the material outlet end of the drying machine; the thickness measuring instrument is arranged between the drying machine and the second traction unit; the first heating and tempering unit, the first cooling unit, the second heating and tempering unit and the second cooling unit are sequentially arranged at the rear end of the second traction unit; the slitting unit is arranged at the material outlet end of the second cooling unit; and the membrane coating unit and the automatic coiling machine are sequentially arranged below the rear side of the slitting unit. The PVB glass sandwich layer membrane sheet production line provided by the invention is rigorous in production line structure, a molecular structure of the membrane can be improved and stabilized well through tempering twice, and the membrane sheet performance is improved.
Owner:安徽嘉好机械制造有限公司

Rock coarse fracture seepage simulation model and making method

The invention discloses a rock coarse fracture seepage simulation model and a making method. The rock coarse fracture seepage simulation model comprises a fracture main board, a left mounting board, a right mounting board, an upper mounting board and a lower mounting board, the fracture main board is of a cuboid structure, a hydrophobic area is arranged on one side of the cuboid structure, a water gathering area is arranged on the other opposite side, the hydrophobic area is communicated with the water gathering area, the outer side of the hydrophobic area is matched with the left mounting board, and the outer side of the water gathering area is matched with the right mounting board; the upper surface and the lower surface of the cuboid structure are respectively matched with the upper mounting board and the lower mounting board, and a pressure measuring hole communicated with a communicating area between the hydrophobic area and the water gathering area is formed in the upper mounting board. 3D printing technology is adopted to manufacture the fracture main board which is fixed through the upper, lower, left and right mounting boards, and a bolt or a water pressure sensor is mounted on each mounting board, so that the making method of the rock coarse fracture seepage simulation model is simple to make, convenient to experiment and capable of reflecting rock fracture seepage characteristics more really and more accurately.
Owner:SHANDONG UNIV

Method for accurately positioning trigger position based on programmable circuit

The invention discloses a method for accurately positioning a trigger position based on a programmable circuit. The method for accurately positioning the trigger position based on the programmable circuit comprises the steps that time base gears and trigger delay of a data collection and analysis type instrument are detected; whether a user changes the time base gears or trigger delay or not is judged, if so, software parameters are arranged and sent to a field programmable gate array (FPGA) through bus communication, and a collection interpolation process is restarted; a processor obtains sampling data and combines the real-time sampling data into an array according to the channel combination condition; and when the data collection and analysis type instrument is located at an interpolation gear, real-time interpolation is carried out, then, trigger point repositioning is carried out, an interpolation point is adjusted, so that a generated waveform performs stable display taking a trigger level as a reference point. According to the method for accurately positioning the trigger position based on the programmable circuit, interpolation and trigger accurate positioning are realizedthrough pure hardware, and consuming time is less. The scheme is clear in division of labor, according to the execution fast and slow level of software and hardware, by combining real-time requirementof an oscilloscope, the characteristics of high software calculation capacity are fully played, and key parameters required by the hardware interpolation are calculated.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Multi-level high-efficiency hydropower generator set

The invention discloses a multi-level high-efficiency hydropower generator set relating to a hydropower generator. The multi-level high-efficiency hydropower generator set comprises a driving device, an automatic control device and related devices, wherein the driving device comprises an upper water wheel, an intermediate water wheel, a lower water wheel, a front gear, an intermediate gear, a rear gear, a front fixed shaft, an intermediate fixed shaft, a rear fixed shaft, a front drive shaft, an intermediate drive shaft and a rear drive shaft; the automatic control device comprises an automatic controller, a storage battery and an electric valve; and the related devices comprise an upper water tank, an intermediate water tank, a lower water tank and a power generator. The multi-level high-efficiency hydropower generator set disclosed by the invention has the advantages of ingenious design structure, superior technical performance, sufficient utilization of hydropower resources and space fields, investment cost reduction, more functions, wide application scope, high efficiency, energy saving, environmental friendliness, safety, reliability, convenience, high using return rate and extremely outstanding comprehensive benefit, social benefit and long-term benefit.
Owner:LIUZHOU JINGYANG ENERGY SAVING TECH RES DEV
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