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69results about How to "Data collection is reliable" patented technology

Satellite positioning and static leveling-based layered settlement monitoring system and method

The invention discloses a satellite positioning and static leveling-based layered settlement monitoring system and method. The system comprises a base station, a monitoring station which is arranged in a settlement monitoring area and a monitoring center which communicates with the monitoring station, wherein the base station communicates with the monitoring station; the monitoring station comprises an observation pillar, a second Beidou satellite signal receiver mounted on the observation pillar, a data transmission unit, a plurality of layered settlement marks and a static level system; the static level system comprises a plurality of static level gauges; each layered settlement mark is provided with one static level gauge; one of the static level gauges is arranged on the observation pillar. The method comprises the following steps: I, setting of the monitoring system; II, data acquisition and transmission; III, data processing and analysis. According to the satellite positioning and static leveling-based layered settlement monitoring system and method, the calibration and correction problems of the instable working base points during the static leveling can be effectively solved, and the long-term, remote and real-time monitoring for the layered settlement deformation of the geologic bodies can be realized.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN

Welding microcell performance test based residual stress computing method

The invention provides a welding microcell performance test based residual stress detection method, which comprises the following steps of: carrying out a micro-compression-shear test on a welding microcell so as to obtain a load-displacement curve of the welding microcell, establishing a 3D (three-dimensional) finite element model of a micro-compression-shear test process, and carrying out a finite element reverse backstepping method based on an improved Gurson model so as to obtain a true stress-strain relation of the welding microcell; computing the welding residual stress, wherein in the process of carrying out computing on a welding temperature field, the influence of the mechanical property of the welding microcell on the change of the temperature field is not considered; and after the welding temperature field is obtained, in the process of carrying out computing on a welding stress field, taking normal-temperature mechanical property parameters (when the temperature of a weldment is reduced according to the true stress-strain relation of the welding microcell) into a welding computing model, and then obtaining the welding residual stress through computing. The accuracy of the method disclosed by the invention is higher than that of a result obtained by using a residual stress computing method which is implemented through not considering the mechanical property of the welding microcell.
Owner:XI AN JIAOTONG UNIV

Device and method for determination of coal rock isothermal desorption curve under saturated water condition

ActiveCN104502224ACharacterize desorption propertiesClear structureMaterial analysisDesorptionData acquisition
The invention discloses a device and method for determination of a coal rock isothermal desorption curve under saturated water condition. The device comprises a gas injection and vacuum pumping control subsystem, a water injection control subsystem, a true-triaxial rock core holding and control subsystem, and a dehydration metering subsystem. The gas injection pipe hole and water injection pipe hole of the true-triaxial rock core holding and control subsystem are respectively connected to the gas injection and vacuum pumping control subsystem and the water injection control subsystem, and the outlet end of the true-triaxial rock core holding and control subsystem is connected to the dehydration unit inlet end of the dehydration metering subsystem. The dehydration metering subsystem realizes respective metering of accumulative discharged gas and water mass. The method for determination of the coal rock isothermal desorption curve under saturated water condition is an experimental method carried out based on the device. Through true reappearance of the ground stress field, groundwater pressure field, temperature field and other underground environments where the coal rock is located, coal-seam gas desorption characteristic test is carried out, the device has a clear structure, the data acquisition is reliable, and the result is accurate and credible.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Visualized test device and method for simulating underground coalbed methane occurrence and desorption process

The invention relates to a visualized test device for simulating the underground coalbed methane occurrence and desorption process. The device includes: a visualized simulation subsystem, a gas injection control subsystem, a constant pressure and constant speed pump, and a gas-water separation metering subsystem. The visualized simulation subsystem is used for visualized simulation of the gas-water dynamic change situation of the underground coalbed methane occurrence and desorption process, the gas injection control subsystem is used for supercharging or vacuum pumping of the injected gas ofthe visualized simulation subsystem, the constant pressure and constant speed pump is used for injecting water or extraneous liquid to the visualized simulation subsystem to construct an underground hydrodynamic field or extraneous engineering fluid affected environment, and a gas-water separation metering apparatus of the gas-water separation metering subsystem is used for separation metering ofgas-water mixed fluid discharged by the visualized simulation subsystem. The design environment provided by the invention comprehensively reflects the influence of the underground initial temperaturefield, hydrodynamic field, extraneous engineering fluid and the like on the underground coalbed methane occurrence and desorption law, and more truly reproduces the output change process of gas and water phases in the drainage and pressure reduction exploitation process of underground coal seams.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Micro pressure shear experimental device and testing method of mechanical property of fusion welding microcell

InactiveCN102759485AAchieve pure shear actionSmall blanking gapMaterial strength using steady shearing forcesShear stressStress–strain curve
The invention provides a micro pressure shear experimental device and a testing method of mechanical property of a fusion welding microcell. The experimental device comprises a base, a lower die, a guide pressure head, a pressure head and a pressure rod, wherein the center of the base is provided with a concave table; the upper part of the base is provided with two guide posts, a groove is formed between the two guide posts, and the groove is communicated with a concave table; the lower die is installed in the concave table, and the top surface of the lower die is in flush with the bottom of the groove; a cylindrical hole is arranged between the two guide posts, and the guide pressure head is installed in the cylindrical hole; the center of the guide pressure head is provided with a guide hole; and the pressure head and the pressure rod are installed in the guide hole. The micro pressure shear experimental device provided by the invention is reasonable in design, can guarantee the loading precision and accuracy, is reliable in data collection, and is accurate in obtained load-displacement curve of each cell; and through testing, shear strength and an engineering shear stress-strain curve of a welding joint parent metal joint are obtained, and can be expanded to each cell of the joint, thus a microcell heterogenous mechanical property of the joint can be obtained.
Owner:XI AN JIAOTONG UNIV

Coal rock adsorption deformation and porosity synchronous measurement device and method

The invention belongs to the technical field of safety in coal mines and relates to a coal rock adsorption deformation and porosity synchronous measurement device and a coal rock adsorption deformation and porosity synchronous measurement method. A strain sensor and a first solidified gas pressure sensor at the upper end of an adsorption tank are connected onto a multipath signal conditioner through a wire, a gas reducing valve and a second solidified gas pressure sensor are fixedly installed on a high pressure gas cylinder, the second solidified gas pressure sensor is connected onto the multipath signal conditioner through a wire, a pipeline on the high pressure gas cylinder is connected with a standard cylinder, a second mass flowmeter is installed on the pipeline, a rotating platform is installed below the adsorption tank, an X-ray source and a ray detector that are right opposite to the adsorption tank are fixedly installed in a constant temperature air bath installed outside the adsorption tank, a data acquisition and analysis system is installed on the ray detector, a first mass flowmeter and a vacuum degassing pump are connected onto a pipeline on the adsorption tank, a degassing control valve and a vacuum thermocouple meter are fixedly installed on the vacuum degassing pump, and the problem that the adsorption deformation and the porosity of a coal sample cannot be measured synchronously in the process of measurement of the adsorbed gas flow of the coal rock is solved.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Physical parameter remote measurement and transmission device of underground ecological water based on wireless sensor network

The invention relates to a physical parameter remote measurement and transmission device of underground ecological water based on a wireless sensor network, which comprises a sensor fixer, a data acquisition device, a data communication device, a communication cable, a message collecting and command giving device and a data summarizing/processing/showing backstage server, wherein the data communication device is installed on the sensor fixer; the line shaft and handle on the data communication device are fixed in the central position on a cross fixed mount; a communication cable is wound on the line shaft, passes through the central circular hole of the cross fixed mount and is vertically hung in a measured well after being connected with the data acquisition device; the data acquisition device is hung at the tail end of the communication cable; the message collecting and command giving device is connected with a PC (personal computer) through a serial port; and the PC is connected with the data summarizing/processing/showing backstage server. The physical parameter remote measurement and transmission device provided by the invention has the characteristics of novel structure, small volume, low cost, automatic data obtainment at regular time, synchronous acquisition of multiple data sources, wireless mode transmission, high detection accuracy and the like and has wide application prospects in the fields of agriculture and ecology.
Owner:BEIJING NORMAL UNIVERSITY

RFID (Radio Frequency Identification Device) technology-based diagnosis and treatment system for acupuncture and moxibustion therapy of apoplectic sequelae

The invention discloses an RFID (Radio Frequency Identification Device) technology-based diagnosis and treatment system for acupuncture and moxibustion therapy of apoplectic sequelae, which comprises main functional modules of: a data acquisition module, embedded business data processing modules, a data interaction module, a central database module and a data application module. The RFID technology-based diagnosis and treatment system is characterized in that the embedded business data modules are used for reliably acquiring the temperature, muscle response, pressure and other data produced in the treatment process of patients in real time. Compared with the prior art, the RFID technology-based diagnosis and treatment system can be used for reliably acquiring the temperature, muscle response, pressure and other data produced in the treatment process of the patients d in real time, so that under the same treatment condition, the treatment effects of some patients are good, the treatment effects of some patients are not obvious, aiming at the population with strong response, the current diagnosis and treatment method is continuously used, aiming to the population with weak response, the treatment solution and the treatment method are immediately adjusted, and thus, the best treatment time for the patients can be obtained.
Owner:苏州博康生物医疗科技有限公司

RFID electronic tag for monitoring environmental data of cold chain logistics

The invention relates to a radio frequency identification (RFID) electronic tag for monitoring environmental data of cold chain logistics. The tag comprises a tag body, and an RFID module, an environmental data monitoring module, an antenna module, a storage module and a central processing unit which are arranged on the body, wherein the RFID module, the environmental data monitoring module, the antenna module and the storage module are connected with the central processing unit. Compared with the prior art, the tag can reliably acquire temperature data, humidity data, photosensitive data, pressure data and the like in the production, transportation and sales processes in the cold chain industry in real time; and the cold chain logistics is applied to primary agricultural products such as vegetables and fruits, meat, poultry and eggs, aquatic products and flower products, processed food such as quick-frozen food, packaged cooked food of the poultry, the meat, the aquatic products and the like, milk, ice cream and dairy products, and fast food raw materials, special commodities such as medicines, vaccines, blood products and other biological products, and special dangerous chemicals, wines and cigars, semiconductor packaging and the like.
Owner:陈灵华

High-density mobile monitoring system

ActiveCN111272667AUnlimited expansion typesRealize parallel accessElectric signal transmission systemsTesting waterComputer hardwareAcquisition apparatus
The invention relates to a high-density mobile monitoring system. The high-density mobile monitoring system comprises a navigation controller, and a protocol conversion circuit module, an electronic speed controller, a shipborne data transmission module and a receiver which are connected with the navigation controller. The protocol conversion circuit module is connected with more than one navigation sensor, the shipborne data transmission module is connected with a water quality monitoring probe and is wirelessly connected with a ground data transmission module, and the ground data transmission module is connected with a tablet personal computer controller; the tablet personal computer controller is connected with a remote controller, the tablet personal computer is connected with the shipborne digital image transmission module, the shipborne digital image transmission module is connected with more than one image acquisition device, and the receiver is wirelessly connected with the remote controller through a wireless network. According to the present invention, the protocol conversion circuit module and a conversion module for converting multiple protocols into an NMEA0183 international general positioning protocol are adopted, so that the standard protocol fusion of different navigation sensors is achieved, and the types of the navigation sensors can be infinitely expanded without changing and upgrading a control system CPU and a control program.
Owner:TSINGHUA UNIV

Method for realizing label for monitoring pathological data

The invention discloses a method for realizing a label for monitoring pathological data. According to the method, the label comprises a label body, a radio frequency identification device (RFID) module arranged on the label body, an environmental data monitoring module, an antenna module, a storage module and a central processing unit, wherein the RFID module, the environmental data monitoring module, the antenna module and the storage module are connected with the central processing unit. Compared with the prior art, the method has the advantages that data of temperature, muscle response, pressure and the like which are generated in the treatment process of patients can be acquired reliably in real time, so that the condition that because the treatment effect of one part of patients is good, and the treatment effect of the other part of patients is not obvious under the same treatment condition, the current diagnosis and treatment method is used continuously aiming at the patients who are quick in response on treatment, and the treatment scheme and treatment method are needed to be adjusted immediately aiming at the patients who are slow in response on the treatment is realized to strive the optimum treatment time for the patients. Therefore, the method for realizing the label for monitoring the pathological data is realized.
Owner:SUZHOU YAAN INTELLIGENT TECH
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