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66results about How to "Realize real-time dynamic monitoring" patented technology

Gold nanotube based flexible stretchable electrode and preparation method and application thereof

The invention discloses a gold nanotube based flexible stretchable electrode and a preparation method and application thereof. The preparation method comprises the following steps: performing hydrophilic treatment on a polydimethylsiloxane (PDMS) elastic film in advance and boosting uniform adhesion and fixing of a silver nanowire on the surface of an elastic base; with a disordered silver nanowire as a template, further preparing a gold nanotube with large length-diameter ratio through a replacement reaction of [Au(en)2]Cl3 and silver, thereby acquiring the gold nanotube based flexible stretchable electrode; connecting the electrode with an external electrode wire, thereby lastly acquiring an electrode used for testing. The gold nanotube based flexible stretchable electrode provided by the invention has the characteristics of high mechanical deformation resistance, excellent electrochemical property and excellent biocompatibility, can be used for monitoring mechanical sensitive cells in real time under true physiological conditions, and breaks through limitation to application of an existing nanometer material to a stretchable electrochemical transducer. The preparation method is simple and controllable and thus the electrode is easy to prepare.
Owner:WUHAN UNIV

Dynamic monitoring method and system for vehicle information of multiple unit trains

A dynamic monitoring method and system for vehicle information of multiple unit trains mainly solve the problem of effectively combining real-time monitoring data of WTD equipment with the locomotiverunning time, running speed and mileage information and realizing the real-time monitoring and analysis of the WTD equipment in a running process of the multiple unit trains. The system comprises a vehicle-mounted information acquisition device, a ground server and a user terminal. The method comprises the following steps: enabling the vehicle-mounted information acquisition device of the system to acquire the running state information, vehicle door information, lifting bow information, vacuum circuit breaker (VCB) state information and equipment fault information of the WTD equipment and thetrain running speed, location and other information, performing data encryption, and then transmitting the data to the ground server, enabling the ground server to classify and store the received dataafter parsing and analyzing the data, enabling the user terminal to receive the WTD equipment monitoring data and train running data sent by the server through a railway office network, and displaying the monitoring data in real time in numerical and curve forms.
Owner:河南蓝信软件有限公司

Real-time dynamic measurement method for measuring radial clearance between steam turbine rotor and stator

ActiveCN105526878ARealize non-contact measurementFast and accurate real-time dynamic online monitoringUsing optical meansObservational errorEngineering
The invention provides a real-time dynamic measurement method for measuring radial clearance between a steam turbine rotor and a stator. The method is characterized in that the method comprises the steps of determining distance measurement devices for radial clearance, determining radial clearance between the rotor and the stator, determining the radial clearance between the rotor and the stator, determining the distance from an emitter to the surface of the rotor, calculating vertical offset amount of the rotor when the center of the rotor shifts, calculating horizontal offset amount of the rotor when the center of the rotor shifts, calculating the rotor offset amount at any position and calculating the radial clearance between the steam turbine rotor and the stator. The method can carry out dynamic measurement on the rotor labyrinth clearance and blade top labyrinth clearance of a running steam turbine accurately and quickly, thereby solving the problem that the measuring error of the radial clearance between the steam turbine rotor and the stator is large and the radial clearance cannot be measured online dynamically and accurately, ensuring safe and economical operation of the machine set and saving halt overhaul time.
Owner:NORTHEAST DIANLI UNIVERSITY

System and method for monitoring performance of air brake of rail train

The invention discloses a system and a method for monitoring the performance of an air brake of a rail train. The system comprises a wireless pressure data acquisition device, a wireless ground data receiving and sending device and a central server, wherein the wireless pressure data acquisition device automatically acquires data according to the pressure variation in a brake cylinder, stores the data, enters a low-power consumption dormancy state when the pressure does not change, receives a ground activation instruction, and sends train information and pressure data information; the wireless ground data receiving and sending device sends the activation instruction, uploads a clock time mark, and receives and sends the pressure data information and the train information; and the central server receives and processes the pressure data information sent by the data receiving and sending device. The system and the method dynamically monitor the air brake of the rail train in real time, directly judge the dynamic working state of all the train brake devices of the train, can overhaul the train brake with an aim and realize conversion from manual control to mechanical control.
Owner:北京高铁三瑞电子技术有限公司

Pressure and the output self-adaptation measurement and control system of electric pump producing well

The invention discloses a pressure and the output self-adaptation measurement and control system of an electric pump producing well, comprising an underground pressure sensor (1), a communication cable (2), a multi-functional acquisition instrument (3), a control cabinet (4), a power cable (6) and an electric submersible pump (7), wherein the output end of the underground pressure sensor (1)is connected with the input end of the multi-functional acquisition instrument (3) through the communication cable (2); the output end of the multi-functional acquisition instrument (3) is connected with the input end of a frequency converter (5) inside the control cabinet (4); and the output end of the frequency converter (5) is connected with the input end of the electric submersible pump (7) through the power cable (6). The invention forms the self-adaptation close-loop measurement and control system for sensing, transmitting, processing and controlling underground information, thereby realizing the real-time dynamic monitoring of underground parameters, ensuring the balance of the output quantity and the produced quantity of an oil well, ensuring the normal operation of the electric submersible pump (7) and achieving the purpose of the productivity maximization of the oil well.
Owner:成都陆海石油科技有限公司

GOOSE (generic object oriented substation event)-based five-prevention locking method of measuring and controlling device

The invention discloses a five-prevention locking method which takes a measuring and controlling device as the core and is based on a GOOSE (generic object oriented substation event) exchanging mechanism. The measuring and controlling device and a background are used for performing interactive operation ticket permission through the GOOSE way and monitoring opening and closing permission virtual marker bits in the downlink direction, and further performing five-prevention logic output of locking contact points according to the marker bits of the background and a separation layer of the measuring and controlling device so as to ensure correctness of operation; in the uplink way, a collection switch auxiliary contact and an auxiliary contact point of an electromagnetic lock are used for feeding back the operation process, thereby realizing real-time on-line monitoring of the operation of a full station. Through the technical scheme of the invention, the five-prevention program locking taking the measuring and controlling device as the core can be realized through the separation layer, the probability of false operation of a substation is reduced, the three-layer five-prevention check of dispatching remote control is further realized, and the repulsion problem of operation tickets of simultaneous operation of dispatching and the background is solved.
Owner:NR ELECTRIC CO LTD +1

Ubiquitous power Internet of Things monitoring method

The invention discloses a ubiquitous power Internet of Things monitoring method, and belongs to the field of power grid control. The method comprises the following steps: acquiring real-time data of each unit in ubiquitous power Internet of Things by using data acquisition equipment; creating a corresponding digital twinning model according to the real-time data; and comparing and interacting thedigital twin model with a normal state, and monitoring the ubiquitous power Internet of Things in real time. According to the invention, real-time dynamic monitoring can be carried out on the power Internet of Things of each area.
Owner:JIANGSU FRONTIER ELECTRIC TECH +2

Method used for detecting liquid level of liquid steel and protecting thickness of slag layer of slag liquid in crystallizer

The invention relates to a method used for detecting the liquid level of liquid steel and protecting the thickness of a slag layer of slag liquid in a crystallizer and belongs to the technical field of continuous casting of metal. A crystallizer wall inner temperature measuring / collecting module, an anti-inference method calculation heat flow density module, a heat flow density spectral analysis module and an interface recognition module are involved in the method. The modules are connected in series. By means of the function of the modules and information flow exchange among the modules, the position of the liquid steel and the position of the liquid slag layer are determined, and therefore the liquid level of the liquid steel and the thickness of the liquid slag layer are detected. As the new detection principle is adopted, the method has the advantages that radiation pollution is avoided, use is safe and reliable, the maintenance property of equipment is good, labor intensity is low, the method is simple and easy to implement, adjusting is convenient, the response speed is high, the capacity of resisting disturbance is high, and control precision is high. The method has high industrial application value, and the liquid level of the liquid steel and the thickness of the liquid slag layer in the crystallizer can be monitored in real time.
Owner:CENT SOUTH UNIV

Anti-rollover control system and control method for tank truck tank body

The invention discloses an anti-rollover control system and control method for a tank truck tank body. The system comprises a tank body side inclination angle measuring unit, an alarm control unit, abrake control unit and an anti-rollover control unit. The method comprises the following steps of (1),constructing the anti-rollover control system for the tank truck tank body; (2), calculating the side inclination angle of the tank body through a displacement sensor; (3), calculating the rollover index of a tank truck, wherein the rollover index is a quasi-static rollover threshold value K; and(4), and when the rollover index monitored in real time is higher than the set threshold value, letting the alarm control unit and the brake control unit work; and when the rollover index monitored inreal time is lower than the set threshold value, releasing the alarm control unit and the brake control unit. According to the system and the method, the vehicle is monitored in real time through thesensor, so that the vehicle can be timely prevented from rollover.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

High-speed railway GSM-R network dynamic detection method and system

A high-speed railway GSM-R network dynamic detection method and system mainly solve the dynamic real-time detection and real-time analysis of a high-speed railway GSM-R network state and can realize hidden danger analysis of the sudden anomaly of the GSM-R network. The system integrates a traditional independent instrument test system (instrument, test train) into multiple test circuit board detection modules that are installed separately on high-speed trains operating normally, achieve long-range dynamic testing by using a wireless network so that a maintainer can easily determine and analyzewhether base station parameters is reasonably designed and can timely find out the system problems in a network optimization phas to ensure the normal operation of a GSM-R system. The method and system can combine the detected GSM-R network environment information with train control information, and transmit data to the ground through the GPRS and GSM-R wireless transmission technologies, and realize the real-time dynamic monitoring of the GSM-R network where a running train is located.
Owner:HENAN LANXIN TECH

Acidic etching instrument and operation method thereof

The invention discloses an acidic etching instrument and an operation method thereof. The acidic etching instrument comprises a visualized core holder made of transparent materials, wherein the visualized core holder is of a hollow sealed structure, the upper end of the visualized core holder is provided with an upper through hole, the lower end of the visualized core holder is provided with a lower through hole, and the upper through hole and the lower through hole are both communicated with the inside of the visualized core holder. The acidic etching instrument and the operation method thereof disclosed by the invention have the beneficial effects that the instrument adopts a one-inch columnar core, therefore, an effect of easy processing is achieved, and actual reservoir cores can be adopted for carrying out experimental researches; the etching form of cores can be subjected to real-time tracking; and the whole acidic rock reaction process is reflected really, and a study on the change of annular fracture diverting capacity can be performed, thereby achieving the purpose of optimizing an acidizing fluid system and an acidizing process.
Owner:SOUTHWEST PETROLEUM UNIV

Integrated sewage pipe network detection and sewage treatment device and system

The invention relates to an integrated sewage pipe network detection and sewage treatment device and a system. The device comprises multiple data acquisition terminals, a pre-treatment circuit, a main control circuit, a frequency conversion control circuit and multiple water pumps, wherein each river is internally provided with the data acquisition terminals along a water flowing direction, each river is internally at least provided with a water pump, all the water pumps are connected with sewage tanks through sewage pipes, all the acquisition terminals are electrically connected with the pre-treatment circuit, the main control circuit is separately electrically connected with the pre-treatment circuit and the frequency conversion control circuit, and all the water pumps are electrically connected with the frequency conversion control circuit. Through the device, real-time dynamic monitoring on a sewage network system can be realized, concentrated dynamic treatment on sewage is carried out according to a monitoring result, integrated detection and treatment are realized, further water quality deterioration of the sewage during a sewage transfer process can be prevented, pollution to the environment is reduced, and the sewage after treatment reaches sewage discharge standards.
Owner:深圳市宝德科技有限公司

Weighing-type automatic urine measuring instrument

The invention relates to a urine amount inspection instrument, and particularly discloses a weighing-type automatic urine measuring instrument. The weighing-type automatic urine measuring instrument comprises a microprogrammed control unit (MCU) master control circuit, an analog-to-digital conversion circuit, a data storage circuit, a display driving circuit and an alternating-current and direct-current power circuit, wherein the analog-to-digital conversion circuit, the data storage circuit, the display driving circuit and the alternating-current and direct-current power circuit are connected with the MCU master control circuit; the input end of the analog-to-digital conversion circuit is also connected with a pressure sensor; and the output end of the display driving circuit is also connected with a display screen. The weighing-type automatic urine measuring instrument is used for monitoring the urine amount data so as to simplify a urine amount measuring flow, the workload of a nurse is lowered, and the pollution possibility is reduced.
Owner:焦胜强

Wireless monitoring system and method

The invention relates to a wireless keeper system and method, which comprise a baby's end monitoring apparatus. The baby's end monitoring apparatus comprises an image transducer module, an image acquisition process module, a microphone, a voice acquisition process module, a mainframe wireless data communication module, a mainframe code comparison process module and a power source management module connected with all the modules; a parent's end monitoring apparatus comprises a slave machine wireless data communication module, a voice player process module, a loudspeaker, an image display process module, a display screen, a slave machine code comparison process module and a power source management module linked to all the modules; the baby's end monitoring apparatus is connected with the parent's end monitoring apparatus through a wireless data linkage; the method comprises code comparison process, continuously receiving and playing information from the baby's end apparatus, setting automatic circulation monitoring of a plurality of baby's end apparatus, and circularly receiving and playing all information from baby's end apparatus. The wireless keeper system and relevant method has the advantages of being convenient and flexible, system working performances being reliable, and adapting scope being rather expansible, thus being applicable in such places as household, baby-care rooms, etc.
Owner:TSUEN SHING ENTERPRISES

Dangerous material vehicle positioning management system

InactiveCN104574006ARealize real-time dynamic monitoringReduce and avoid non-compliance incidentsLogisticsWeb serviceWeb page
The invention relates to a dangerous material vehicle positioning management system. The dangerous material vehicle positioning management system comprises a Web server and a positioning server, wherein the Web server is mainly in charge of responding to a customer, sending web information to the customer and returning a result of a customer request, and communicates with the positioning server to acquire real-time vehicle positioning data for customer use; the positioning server is used for receiving the positioning data of a front-end vehicle, sending the positioning data to the Web server periodically, and storing the positioning data in a database simultaneously. The dangerous material vehicle positioning management system successfully realizes real-time dynamic monitoring of a large-batch dangerous material transporting vehicle, can effectively solve the monitoring and commanding and dispatching problems of the transporting vehicle, and provides a powerful guarantee for dangerous material transportation.
Owner:CHINA CHANGFENG SCI TECH IND GROUPCORP

Subway environment monitoring system based on ZigBee and GPRS

InactiveCN108132620ARealize real-time dynamic monitoringReal-time dynamic monitoring is safe and controllableProgramme controlComputer controlMonitoring systemManagement efficiency
The invention relates to a subway environment monitoring system based on ZigBee and GPRS. A ZigBee terminal monitoring node collects environmental parameters in a subway tunnel, and the environmentalparameters are forwarded and transmitted to a coordinator through ZigBee wireless communication; the coordinator realizes conversion of a network protocol with a GPRS communication module; and finally, the data is transmitted to a remote monitoring center through the GPRS communication module, and the remote monitoring center can monitor on-site environment in real time, and can also send a command to control the whole system. The subway environment monitoring system is low in cost, high in flexibility and energy saving and environmental friendly, and is of great importance to ensure safe operation of the subway and improve management efficiency.
Owner:WUHAN CHAOYIN TECH

Precast pile inclination real-time monitoring and alarm apparatus

The present invention relates to a precast pile inclination real-time monitoring and alarm apparatus, which comprises a cabinet and a suspending hook, wherein a connection rod is fixed on the upper portion inside the cabinet, the lower portion is provided with a center shaft disc, a special-shaped rod is connected with the center shaft disc and the connection rod, can rotate along the center axis, and is bound with a heavy hammer through a heavy hammer line, a mercury tank is fixed on the special-shaped rod, and an electrical apparatus box is fixed on the mercury tank. According to the present invention, when a precast pile inclines, the heavy hammer moves toward an inclined vertical plane of the precast pile under a gravity effect to drive the mercury tank fixed on the special-shaped rod to move toward the vertical plane; when a mercury tank inclination angle is equal to or more than a designed angle alpha, long copper wires and short copper wires in the mercury tank immerse into mercury, such that an alarm circuit is turned on, and an alarm alarms so as to prompt inclination state generation; and a flashing light flashes, and a direction of the flashing light can be observed so as to know an inclination direction of the precast pile. The apparatus has the following characteristics that: a structure is simple, the apparatus can be installed on the outer portion of the precast pile so as to easily achieve project construction, precast pile construction can be real-timely monitored and guided, and the apparatus can be reused so as to save construction cost.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Roadbed settlement monitoring device based on fiber grating technology and installation method thereof

The invention provides a roadbed settlement monitoring device based on fiber grating technology, and the device comprises a fiber grating settlement meter, a steel tank sliding rail, a settling rod, asettling plate, a water filling tank, a fiber grating demodulator and terminal processing equipment, wherein the fiber grating settlement meter is moveably connected to the steel tank sliding rail, the steel tank slide rail is connected onto the settling rod, the settling plate is connected under the settling rod and is buried in soil body, the water filling tank is connected to the fiber gratingsettlement meter, the input end of the fiber grating demodulator is electrically connected to the fiber grating settlement meter, and the output end of the fiber grating demodulator is electrically connected to the terminal processing equipment. The roadbed settlement monitoring device provided by the invention has the advantages such as anti-electromagnetic interference, high sensitivity, high test precision and strong durability, and can perform real-time dynamic monitoring on roadbed settlement.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Device and method for testing bonding strength of rivet type multilayer electrical contact

The invention relates to a device and a method for testing bonding strength, in particular to a device and a method for testing bonding strength of a rivet type multilayer electrical contact and solves the problem that actual bonding force-displacement curves of multiple layers cannot be measured directly with existing methods for measuring the bonding strength of the rivet type multilayer electrical contact. Two two-way lead screws are arranged in parallel, a worm gear is mounted at one end of each two-way lead screw, each worm gear is meshed with one corresponding worm, a second lead screw support is fixedly connected with two nuts on the same side, and a first lead screw support is fixedly connected with another two nuts on the same side. An experiment unit and a test unit are reset; adrive unit of the test device is started to drive a push head and a fixture to move oppositely at the constant speed from two ends of the test device in a centered manner; in the process that the pushhead and the fixture slowly move from two ends of the test device to the middle, an industrial camera is finely adjusted, and clear dynamic images of a computer are obtained. The device and the method are used for testing the bonding strength of the rivet type multilayer electrical contact.
Owner:HARBIN INST OF TECH

Synchronous light-electricity sensing method for dark-field imaging-based solid nano channel

The invention discloses a synchronous light-electricity sensing method for a dark-field imaging-based solid nano channel. The synchronous light-electricity sensing method comprises the following steps: (1) preparing a semiconductor substrate film coated with a metal nano coating; (2) preparing a metal coated nano channel chip; (3) preparing a light-electricity detection micro pool; (4) imaging by utilizing a metal coated nano channel dark field; (5) recording ion current intensity by utilizing the metal coated nano channel; (6) adding a to-be-detected object for synchronous light-electricity detection; and (7) analyzing multi-channel data. According to the method, the process that a single to-be-detected nano object can pass through the nano channel can be monitored dynamically in real time without introducing dye groups and labeling so as to acquire dynamic information such as the size, the electrification situation, the light property, the chemical structure of the to-be-detected object; the situation of variation of each type of nature of the single to-be-detected object in the moving process can be observed from multiple dimensionalities; multi-channel signals on a large scale can be acquired synchronously; the detection velocity of a nano channel technique is increased; the application field is widened.
Owner:EAST CHINA UNIV OF SCI & TECH

Greenhouse environment remote mobile monitoring system based on Android platform

The invention discloses a greenhouse environment remote mobile monitoring system based on the Android platform. The system can remotely monitor the real-time physical information of a greenhouse environment and the greenhouse field video image information and realizes parameter adjustment and automatic / manual measurement and control mode switching in an automatic measurement and control process, which simplifies the work content of a user in a greenhouse environment remote monitoring process. The system comprises a greenhouse field device, a background server and a mobile terminal based on the Android system. The greenhouse field device comprises an environment monitoring wireless node, a video monitoring device, an environment control device, an environment control device monitoring node and a number of cameras. The video monitoring device is connected with the cameras. The environment control device monitoring node is connected with the environment control device. The mobile terminal communicates with the background server. The background server communicates with the environment monitoring wireless node, the video monitoring device and the environment control device monitoring node.
Owner:CHINA AGRI UNIV

Crane beam structure safety monitoring device with self-powered power supply

PendingCN112461898AHigh precisionLong-term effective monitoringMaterial resistanceMetallic foilControl theory
The invention discloses a crane beam structure safety monitoring device with a self-powered power supply, which comprises a crack sensor, a vibration power supply and an automatic alarm; the vibrationpower supply is fixed to a lower flange of a crane beam, and the output end of the vibration power supply is connected with the crack sensor and provides monitoring current; the crack sensor is arranged on the surface of the structure, and the output end of the crack sensor is electrically connected with the micro-current measuring instrument; and the automatic alarm judges the crack state basedon the current change threshold values in the metal foil and the conductive film and sends out an alarm signal. According to the invention, strain data can be monitored, the coverage area is large, and the position, length and width changes of cracks can be monitored; the vibration characteristics of the monitored object are utilized to provide current for the monitoring device, a workshop power supply system is not needed, installation is convenient, and long-term effective monitoring can be achieved.
Owner:SHANGHAI UNIV

Functionalized core-shell nanowire as well as preparation method and application thereof

The invention discloses a functionalized core-shell nanowire as well as a preparation method and application thereof, and belongs to the field of electrochemistry and materials. According to the invention, through a chemical polymerization reaction between 3,4-ethylenedioxythiophene (EDOT) and a noble metal complex, the surface of a non-conductive nanowire is uniformly coated with a poly EDOT (PEDOT)-noble metal nanoparticle composite coating, and the functionalized core-shell nanowire is prepared in batches. Based on the simple, convenient and universal one-pot reaction, various functionalized conductive core-shell nanowires are prepared in batches by regulating and controlling the types of core and shell materials. By adopting the core-shell nanowire as an electrode material for assembly, a functionalized nanoelectrode with excellent electrochemical performance can be obtained, the preparation process of the nanoelectrode is simplified, the limitation of an existing nanoelectrode preparation material is broken through, and real-time quantitative monitoring of biological signal molecules in a single living cell is realized.
Owner:WUHAN UNIV

Oil storage tank optical fiber liquid level intelligent monitoring system

The invention relates to the technical field of oil storage tank liquid level monitoring, and discloses an oil storage tank optical fiber liquid level intelligent monitoring system, which comprises a plurality of groups of liquid level sensors arranged on the outer wall of an oil storage tank, each group of the liquid level sensors is formed by combining a strain sensor S1 and a strain sensor S2, the vertical installation distance between the strain sensor S1 and the strain sensor S2 is h0, The multiple groups of liquid level sensors are connected with a collector, the collector is connected with a controller host, the controller host is connected with a monitoring center, and the monitoring center is connected with a server and a far-end platform. According to the invention, the multiple liquid level sensors are arranged, the measurement precision and reliability are greatly improved, a traditional method adopting manual scale detection and assay analysis is changed through the oil storage tank liquid level and temperature on-line monitoring system, real-time dynamic monitoring of oil is achieved, a data basis is provided for production management decisions, and safety accidents are avoided.
Owner:SHENZHEN YIXUN TECH CO LTD

Injection pump control method and device and injection pump system

The invention discloses an injection pump control method. The injection pump control method comprises the steps that an injection pump central controller is connected with injection pumps; when the injection pump central controller carries out not control operation, the injection pump central controller sends a data reading command and / or a state reading command to the injection pumps; the injection pump central controller receives data packets returned by the injection pumps responding to the dada reading command and / or the state reading command; the injection pump central controller analyzes the data packets returned by the injection pumps responding to the dada reading command and / or the state reading command, and data information and / or state information of the injection pumps are / is obtained and updated. The invention further provides an injection pump control device and an injection pump system. Through the injection pump control method and device and the injection pump system, the running states of all the injection pumps can be automatically monitored in real time, related information is fed back to a user in time, and then integrated control and unified management over the injection pumps are achieved.
Owner:SHENZHEN COMEN MEDICAL INSTR

Grain quality monitoring device with grain density measuring function and monitoring method

The invention discloses a grain quality monitoring device with a grain density measuring function and a monitoring method. The grain quality monitoring device comprises a scraper elevator, a grain density measuring device and a grain collecting area, wherein the scraper type elevator is located on a harvester, and an in-place detection device, a photoelectric sensor and a scraper counting sensor are arranged on the scraper type elevator. The grain density measuring device is located on the harvester and connected with the scraper type elevator. The grain collecting area is located below the grain density measuring device. The grain quality monitoring method comprises grain density measurement and volume measurement of grain on the scraper. According to the invention, the volume of the grains can be measured online in real time, the real-time yield of the grains in an operation plot can be calculated, and a theoretical basis is provided for follow-up field fertility analysis of precision agriculture and further for variable seeding, fertilization and pesticide spraying.
Owner:SHANDONG ACADEMY OF AGRICULTURAL MACHINERY SCIENCES +1

Dynamic wireless monitoring and positioning method and system for side slope rockfall disaster

The invention discloses a dynamic wireless monitoring and positioning method and system for a side slope rockfall disaster. The method comprises the following steps of installing a rockfall monitoringterminal on the surface of each potential rockfall in a side slope monitoring area; cruising in a slope monitoring area in the unmanned aerial vehicle cruising positioning system; in each cruise process, sending a wireless electromagnetic wave signal at set intervals; wherein each rockfall monitoring terminal receives a wireless electromagnetic wave signal; after one-round cruise of the unmannedaerial vehicle cruise positioning system is finished, enabling the information processing center to transmit the position and time of the signal according to the position and time of the unmanned aerial vehicle cruise positioning system in the cruise process; acquiring corresponding signal arrival time data of each rockfall monitoring terminal; and calculating the position of each rockfall monitoring terminal in the cruising process of the current round, judging whether the position of each rockfall monitoring terminal in the cruising process of the current round and the cruising process of the previous round is changed or not, and if the position is changed, sending out an early warning of a side slope rockfall disaster at the installation position of the rockfall monitoring terminal. Accurate positioning of falling rocks can be realized, and the cost is low.
Owner:CENT SOUTH UNIV

Multi-parameter monitoring device and method for rock burst in coal mine main roadway area

The invention discloses a multi-parameter monitoring device and method for rock burst in a coal mine main roadway area. The device comprises a drilling stress monitoring device, a drilling deformationmonitoring device, a plurality of monitoring substations, a monitoring master station and a ground terminal. One end of the drilling stress monitoring device is arranged in a stress monitoring drilling hole of one side of the roadway, the other end of the drilling stress monitoring device is fixed at the side part of the roadway, and the two ends of the drilling stress monitoring device are connected through a liquid guide pipe. One end of the drilling deformation monitoring device is arranged in a deformation monitoring drilling hole of one side of the roadway, the other end of the drillingdeformation monitoring device is fixed at the side part of the roadway, and the two ends of the drilling deformation monitoring device are connected through a liquid guide pipe. The drilling stress and deformation monitoring devices monitor drilling stress and deformation signals in real time and transmit the signals to the nearby monitoring substations through a communication cable; each monitoring substation transmits monitoring signals to the monitoring master station through optical fibers, and the monitoring master station transmits all monitoring signals to the ground terminal through aring network. The device has the characteristics of flexibility, reliability, good monitoring effect, low cost and the like, and can be widely applied to prediction and early warning of rock burst inthe coal mine main roadway area.
Owner:NORTH CHINA INST OF SCI & TECH

In-situ test central control method and system

The invention discloses an in-situ test central control method. A general packet radio service (GPRS) module and a global positioning system (GPS) module are loaded on the basis of the existing in-situ test acquisition instrument, the GPS module is used for automatically acquiring satellite signals and acquiring geographic coordinate data of an exploratory hole, and the GPRS module is used for wirelessly sending field test data processed by a singlechip processing chip to a client server in real time, so that the field test data are monitored indoors in real time, the abnormity is processed in time, irregular field operation and test data faking are radically avoided, and field construction quality and authenticity of the test data are ensured. The invention also discloses an in-situ testcentral control system used for implementing the method.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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