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86results about How to "Enable long-term monitoring" patented technology
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Fiber bragg grating detection system device and method for detecting anchoring force of anchor rod
InactiveCN102798492AEliminate strain effectsHigh precisionForce measurement by measuring optical property variationSensor arrayFiber
The invention discloses a fiber bragg grating detection system device and method for detecting an anchoring force of an anchor rod. The fiber bragg grating detection system device consists of a fiber bragg grating sensor array, a fiber bragg grating anchor rod dynamometer, a fiber bragg grating demodulator, an optical cable and a computer, wherein the fiber bragg grating anchor rod dynamometer mainly comprises a plurality of fiber bragg grating sensors which are uniformly arranged on an annular elastic body arm and is arranged at the end part of the anchoring end of the anchor rod; meanwhile, the fiber bragg grating sensor array is distributed on a rod body of the anchor rod; the fiber bragg grating sensor array and the fiber bragg grating anchor rod dynamometer are respectively connected with the fiber bragg grating demodulator through the optical cable; and the fiber bragg grating demodulator is connected with the computer. According to the fiber bragg grating detection system device, the real-time detection on the stress of the anchor rod can be realized and the distributed measurement can be realized. The fiber bragg grating detection system device has the advantages of simple structure, convenience in mounting, high detection speed, long-distance monitoring, repeated use and easiness in protection and maintenance, and is widely applied to tunnels and slopes dug for coal mines, metallurgical mines, water conservancy, railways, roads and defense.
Owner:XIAN UNIV OF SCI & TECH
Intelligent mattress based on fiber grating sensors
InactiveCN104101383AEasy to makeEnable long-term monitoringMeasurement devicesSeating furnitureGratingBluetooth
An intelligent mattress based on fiber grating sensors comprises a single optical fiber wrapped by a fabric and laid on the surface of the mattress; the optical fiber is provided with a plurality of distributed fiber grating pressure sensors and fiber grating temperature sensors; a broadband light source inside the mattress is connected with the distributed fiber grating pressure sensors and the fiber grating temperature sensors through couplers; the distributed fiber grating pressure sensors and the fiber grating temperature sensors are connected with a fiber grating demodulator through couplers; the fiber grating demodulator, a loud speaker, an infrared remote controller and a bluetooth module are all connected with a central processing unit. According to the intelligent mattress based on the fiber grating sensors, the sensors are used for sensing changes of the environment inside and outside a quilt, the sleep state, the sleep quality and the like in the sleep process of people, a feedback mechanism is used for responding to the changes in real time, and all operations including setting on quilt uncovering alarm, optimal sleeping temperature and wake-up time as well as downloading of audio files to be played can be set on an intelligent terminal interface through the bluetooth module.
Owner:NINGBO JINXIN COMM TECH
Automatic modulation and monitoring zonal injection method for water injection well and system thereof
InactiveCN102562013AEnable long-term monitoringReduce lossSurveyFluid removalValue setControl system
The invention relates to an automatic modulation and monitoring zonal injection method for water injection well and a system of the method. The method comprises the following steps: 1) a ground control system inputs a set flow value into a downhole modulation water segregator; 2) actual flow data of downhole water injection zonal levels are acquired, wherein the actual flow data comprise actual flow values, actual pressure values and actual temperature values; and 3) the downhole flow data acquired in the step 2) are compared with the flow value set in the step 1) and modulation water injection is carried out. The invention provides an automatic modulation and monitoring zonal injection method for water injection well and system of the method, thus no manual control is needed, monitoring of long term is realized, modulation time is shortened and labor intensity is reduced.
Owner:XIAN SITAN INSTR
Monitoring device of optical cable distribution boxes and monitoring system of optical cable distribution boxes
ActiveCN103257424AEasy to combineEnable long-term monitoringFibre mechanical structuresElectromagnetic transmissionTime domainDevice form
The invention discloses a monitoring device of optical cable distribution boxes and a monitoring system of the optical cable distribution boxes. The monitoring device forms a light monitoring branch in the optical cable distribution boxes, reflects optical signals on the light monitoring branch, and monitors states of the optical cable distribution boxes by means of changes of reflective signals. According to the monitoring device, optical cable monitoring input ends and optical cable monitoring output ends of the optical cable distribution boxes are connected in series through optical cables. Monitoring of the reflective signals of the optical cable distribution boxes is carried out on a local side through an optical time domain reflectometer. The optical cable distribution boxes are distinguished and positioned through distance values of the optical time domain reflectometer. Therefore, the monitoring of the multiple optical cable distribution boxes is achieved. By means of simple device combination and relatively low equipment cost, the monitoring of opening of distribution box doors of the optical cable distribution boxes can be achieved without power supplies,. Meanwhile, sensitive light reflection monitoring ability to the optical time domain reflectometer and large light attenuation dynamic range characteristics are used, so the monitoring of hundreds of the optical cable distribution boxes on an optical cable link can be achieved.
Owner:JIANGSU HENGTONG PHOTOELECTRIC +1
Distributed fiber monitoring method and system for strains and stresses of ship lock structure
InactiveCN103604384AControl force characteristicsHigh precisionForce measurement by measuring optical property variationUsing optical meansStress distributionReinforced concrete
The invention brings forward a distributed fiber monitoring method and system for strains and stresses of a ship lock structure. The system comprises distributed sensitive optical cables, a data acquisition device, and a data processing and analyzing module; and the distributed sensitive optical cables are laid into tops and bottoms or inner surfaces and outer surfaces of reinforced concrete surface layers of a lock head base plate, a water delivery gallery, a lock chamber base plate, and a lock chamber wall by a way of binding with main ribs so as to form a U-shaped loop. After concrete pouring is completed for laying of the distributed sensitive optical cables into the tops and bottoms or inner surfaces and outer surfaces of the reinforced concrete surface layers of the lock head base plate, the water delivery gallery, the lock chamber base plate, and the lock chamber wall by a way of binding with main ribs, the distance between the sensitive optical cables and the surfaces of the concretes is 5 to 10cm; and the sensitive optical cables are deformed synchronously with the reinforced concrete structures and optical fiber sensors generate corresponding stresses. And a data acquisition station is established at the top of the lock head; and the laid sensitive optical cables lines are connected to the data acquisition station by optical cables.
Owner:NANJING UNIV +2
Piezoelectric sensor for steel-bar corrosion monitoring and steel-bar corrosion monitoring method
InactiveCN103575769AEnable long-term monitoringRealize long-term non-destructive monitoringWeather/light/corrosion resistanceMaterial resistanceRebar corrosionFirming agent
The invention relates to a piezoelectric sensor for steel-bar corrosion monitoring and a steel-bar corrosion monitoring method, and belongs to the technical field of monitoring of an intelligent sensor in a reinforced concrete structure. The sensor is composed of piezoelectric ceramics, an electrode face, an encapsulation layer composed of cement, epoxy resin and curing agent, and shielded conducting wires. The monitoring method based on the sensor comprises the following steps: coupling the piezoelectric sensor and steel bars by adopting a mixture of cement, epoxy resin and curing agent as a bonding agent, testing an electrical impedance-frequency spectrogram of the sensor at different periods, then carrying out root-mean-square deviation calculation, and taking a calculation result as quantification index of judging the condition of steel-bar corrosion inside concrete. The piezoelectric sensor provided by the invention has the characteristics of simpleness in preparation, convenience in use, good in durability and the like; the monitoring method based on the sensor has the characteristics of being accurate, reliable, convenient and intuitive.
Owner:UNIV OF JINAN
Method for measuring bridge structure dynamic displacement and vibration frequency
InactiveCN103335858ASolve the difficulties that are difficult to monitor simultaneouslyHigh measurement accuracySubsonic/sonic/ultrasonic wave measurementStructural/machines measurementField monitoringStructural vibration
A method for measuring bridge structure dynamic displacement and vibration frequency is provided. The method includes the following steps of: (1) establishing a bridge structure vibration field monitoring system so as to synchronously acquire vibration displacement and global navigation satellite system (GNSS) time; (2) performing coordinate system projection conversion which comprises the steps of calculating projection parameters between a local coordinate system and a bridge independent coordinate system and transforming measured structure vibration coordinate projection into the bridge independent coordinate system; (3) filtering bridge structure vibration displacement gross errors; (4) re-sampling vibration displacement through using a linear interpolation method; (5) separating quasi-static parts from dynamic parts in displacement by using a Chebyshev filter; and (6) analyzing vibration signal frequency spectrums through using a fast Fourier method. The method of the invention has the advantages of non-contact property, high precision, high reliability, high automation and the like.
Owner:HUNAN UNIV
Traffic jam determining method based on traffic jam space-time total amount
InactiveCN104318773AEnable long-term monitoringImplement traffic jam measurementDetection of traffic movementTime segmentObservation data
The invention discloses a traffic jam determining method based on traffic jam space-time total amount. The method comprises the steps of firstly, dividing a road into a plurality of road sections according to the road levels and the practical requirements and calculating the travel speed, flow, a travel time specific value and the saturation level; secondly, establishing the road section traffic circulation state identification standard according to the travel time specific value and the saturation level, and utilizing the standard to determine the traffic circulation state of each road section; then calculating the comprehensive weight of each level of road, and carrying out weighing accumulation on the road sections in the traffic jam state in the unit time of the statistic range to obtain the jam space-time total amount in the unit time of the statistic range; finally, accumulating the jam space-time total amount in the unit time to obtain the traffic jam space-time total amount in the statistic time period. According to the traffic jam determining method based on the traffic jam space-time total amount, data analysis is carried out based on massive continuous observation data, long-term monitoring of the city traffic circulation state is achieved, the traffic jam space-time total amount is put forwards, and the traffic jam state is determined from the microcosmic, mesoscopic and macroscopic perspectives at the same time.
Owner:杭州市综合交通研究中心
Fetal heart monitoring apparatus and fetal hear monitoring method
ActiveCN104274210AGuaranteed accuracyEnable long-term monitoringHeart/pulse rate measurement devicesObstetricsSonification
The invention discloses a fetal heart monitoring apparatus and a fetal hear monitoring method. According to one embodiment, the fetal heart monitoring method includes: setting one of more than three monitoring probes as a transmitting probe and the others as receiving probes; using the transmitting probe to transmit ultrasonic wave; converting each ultrasonic wave received by the receiving probes into audio reflection digital signals; selecting one with highest signal-to-noise ratio from more than two audio reflection digital signals; using the receiving probe which receives the audio reflection digital signal with the highest signal-to-noise ratio, as an optimal monitoring channel, and using the optimal monitoring channel to receive fetal heart acoustic wave, and acquiring fetal heart rate based on fetal heart digital signals converted from the fetal hear acoustic wave. The fetal heart monitoring method according to the embodiment has the advantages that less radiation is caused to the human body during the fetal heart monitoring process, fetal heart measurement accuracy is guaranteed, and long-term fetal heart monitoring is achieved.
Owner:SAMSUNG GUANGZHOU MOBILE R&D CENT +1
Photoacoustic microscope and method for monitoring breaking of microvesicles in biological tissue
PendingCN106943120AIncrease contrastHigh resolutionOrgan movement/changes detectionCatheterPhotoacoustic microscopyMicro imaging
The invention discloses a photoacoustic microscope. The photoacoustic microscope comprises a microscope system, a signal collection control system and a driving system. The invention further discloses a method for monitoring breaking of microvesicles in biological tissue with the use of the photoacoustic microscope. The photoacoustic imaging is combined with features of high contrast ratio of optical imaging and high resolution ratio of acoustic imaging. Due to low scattering properties of acoustic signal transmission in tissue, deeper penetration degree is obtained compared with a conventional optical imaging method. There is no need to slicing tissue and the method is non-invasive so that long-term monitoring is achieved. Photoacoustic microscope imaging equipment helps achieve imaging of multiple anatomical positions.
Owner:XIAMEN UNIV
An intelligent mattress based on fiber grating sensor
InactiveCN104101383BEasy to makeEnable long-term monitoringMeasurement devicesSeating furnitureGratingFiber bragg grating sensor
Owner:NINGBO JINXIN COMM TECH
Method for generating health record information
PendingCN109961827AEasy to understandEnable long-term monitoringPatient-specific dataUser inputAcquisition time
An embodiment of the invention relates to a method for generating health record information. The method comprises the steps of receiving identity information input by a user by a health terminal, identifying the identity information and obtaining a user ID; receiving first acquisition data which are acquired by a sign data acquisition terminal; receiving second acquisition data which are input bythe user, analyzing the second acquisition data for obtaining second sign data, corresponding second sign item information and second acquisition time information; acquiring the sign data and the acquisition time information in an item testing list by a server according to the user ID, and generating a sign data statistics chart according to the acquired sign data and the acquisition time information; analyzing the sign data statistics chart, and obtaining analysis result information; generating guiding information according to analysis result information of a plurality of pieces of sign iteminformation; and generating health record information which corresponds with the user ID according to the sign data statistics graph which corresponds with the plurality of pieces of sign item information, the analysis result information and the guiding information.
Owner:BEIJING HAPPOK INFORMATION TECH
Long-gauge length carbon fiber strain sensing device and method for testing same
ActiveCN103453833AEnable long-term monitoringSolve the impactElectrical/magnetic solid deformation measurementCarbon fibersFiber strain
The invention discloses a long-gauge length carbon fiber strain sensing device. The long-gauge length carbon fiber strain sensing device comprises two groups of long-gauge length carbon fiber strain sensing elements with the same geometric size, three isolation film layers with the same size, a measurement connector, two anchoring sections and two parallel connectors, wherein one ends of the long-gauge length carbon fiber strain sensing elements are connected with the parallel connectors through electrodes respectively, the other ends of the long-gauge length carbon fiber strain sensing elements are connected with the measurement connector in series, and the two groups of long-gauge length carbon fiber strain sensing elements are located between adjacent isolation films respectively and have the same strain sensitivity coefficient and the same thermosensitivity coefficient. The long-gauge length carbon fiber strain sensing device achieves sensing of micro structural strain within a large range under long-term instable temperature and humidity conditions to meet civil engineering structural stress (strain) continuous detection and monitoring requirements.
Owner:南京东智安全科技有限公司
Water environment intelligent monitoring system and method based on deep learning
ActiveCN112087528AEnable long-term monitoringAchieve pollutionTelevision system detailsTransmission systemsSolar batteryRF module
The invention discloses a water environment intelligent monitoring system and method based on deep learning. The system comprises a water environment monitoring terminal, an edge processing device anda cloud management platform. The water environment monitoring terminal comprises a first micro central processor; a water surface monitoring camera, a position positioning module, a wireless radio frequency Lora module, a first wireless multimode communication module, a solar battery pack module and a first data storage module, which are electrically connected with the first micro central processor. The edge processing device comprises a second micro central processor; and an Ethernet module, a GPU processor, a second wireless multimode communication module and a second data storage module, which are electrically connected with the second micro central processor. The cloud management platform comprises a water pollution identification server, a Web server and a database server, wherein the Web server and the database server are electrically connected with the water pollution identification server. According to the invention, water environment long-term monitoring and pollution image evidence obtaining can be realized, and monitored image data can be stored and early warned.
Owner:NANCHANG INST OF TECH
Oil-gas pipeline polarization potential monitoring device
ActiveCN102818762AEliminate interference and stray current effectsEnable long-term monitoringWeather/light/corrosion resistanceData collectorPower flow
The invention discloses an oil-gas pipeline polarization potential monitoring device, and relates to the technical fields of general corrosion prevention of a metal material, and pipeline systems. The device comprises a current interrupter, a couple corrosion meter, an adjustable resistor, a data collector, a probe, a portable reference electrode and a computer, wherein the negative end of the current interrupter is connected to the cathode of a pipeline test pile or a constant potential instrument, the positive end of the current interrupter is connected to one end of the couple corrosion meter, and the other end of the couple corrosion meter is connected with a rod-shaped tube steel electrode lead of the probe, and AI8 and AI9 of the data collector respectively through the adjustable resistor; AI GND 3 and AI GND 6 of the data collector are connected together, and then are connected with the AI9 of the data collector, or go through the adjustable resistor and then are connected with the AI9; and AI0 and AI1 of the data collector are connected with the long-acting reference electrode lead of the probe and the portable reference electrode respectively, and the USB interface of the data collector is connected with the USB interface of the computer. The device can realize the long-term monitoring of the real polarization potential, and the accurate calculating of the polarization current density of the probe.
Owner:PIPECHINA SOUTH CHINA CO
Oceanic earthquake and tsunami real-time monitoring system
PendingCN110320560ARealize transmissionExpand the scope of data measurementSeismic signal receiversSeismology for water-covered areasOcean bottomEngineering
The invention discloses an oceanic earthquake and tsunami real-time monitoring system. The oceanic earthquake and tsunami real-time monitoring system comprises an earthquake water level monitoring instrument which is arranged on a seabed and a floater which is arranged on the sea surface, wherein the earthquake water level monitoring instrument comprises a pressure-resistant ball and a base whichis fixedly arranged at the bottom of the pressure-resistant ball; a control storage module, a signal processing device and a battery pack are arranged inside the pressure-resistant ball; a first soundcommunication device connected with the storage module, as well as a pressure sensor and a hydrophone connected with the signal processing device are fixedly arranged outside the pressure-resistant ball; the base is provided with a microorganism generation device which is connected with the battery pack inside the pressure-resistant ball; and the floater is used for receiving an acoustic signal of the earthquake water level monitoring instrument by using a second acoustic communication device, is positioned through a propeller and a Beidou positioning device, and performs data communication with a shore base station through a communication satellite. Through adoption of the oceanic earthquake and tsunami real-time monitoring system, earthquake in a deep-sea area can be monitored; shallow-focus earthquake and tsunami close to the shore can be monitored; and the timeliness of data can be ensured.
Owner:ZHEJIANG UNIV +1
Method for detecting roadbed strain by optical fiber sensing technology
InactiveCN109680573AImprove detection accuracyComprehensive control over deformation characteristicsRoadwaysIn situ soil foundationFar distanceData acquisition
The invention provides a method for detecting the roadbed strain by an optical fiber sensing technology. The method comprises the following steps: collecting virtual strain parameters of multiple monitoring points in a structural layer by utilizing a strain optical fiber sensor in multiple structural layers of roadbed, and collecting temperature parameters of multiple monitoring points by utilizing a temperature optical fiber sensor laid in the structural layer; acquiring virtual strain parameters from multiple monitoring points of a strain optical sensor, and acquiring temperature parametersfrom multiple monitoring points of a temperature optical sensor; calculating the differential value of corresponding virtual strain parameters by utilizing the temperature parameters to obtain accurate strain parameters of the multiple monitoring points; and determining the strain situation of the roadbed according to the accurate strain parameters of multiple monitoring points. According to the method, the detection steps can be simplified, deformation characteristics of the roadbed in the constructing period and operation period can be completely mastered, automatic monitoring and data collection of unattended operation can be realized, and far-distance detection can be realized.
Owner:CHINA RAILWAY 20 BUREAU GRP +1
Device for measuring outer side soil pressure of shield tunnel
ActiveCN110017931AGuaranteed constant temperatureEnable long-term monitoringApparatus for force/torque/work measurementEngineeringElectric control
The invention relates to a device for measuring outer side soil pressure of a shield tunnel. The device comprises an oil bag, a silica gel O-shaped sealing ring, a water swelling rubber sleeve, a cylinder barrel, a piston, a steel wire rope used for pulling the piston, a piston mounting supporting part used for mounting, an electric control system and an oil supply unit, wherein the oil bag is used for sensing soil body deformation and transmitting the soil pressure and engaged with the cylinder barrel through a thread, and compresses the silica gel O-shaped sealing ring to seal hydraulic oil;an outer thread and an inner thread are arranged on the lower part of the cylinder barrel, the outer thread is matched with an inner thread of a hoisting grouting hole, and the inner thread is connected with the piston mounting supporting part; a convex groove used for fixing the piston is formed in the lower position of the cylinder barrel, threads at the bottom and the top of the cylinder barrel are opposite in direction, and the thread at the bottom of the cylinder barrel and the inner thread of the hoisting grouting hole are the same in direction; and the piston is located in the cylinderbarrel and comprises an upper piston part, a formulating nipple, a heating rod, a pressure liquid level assembled temperature transmitter, an oil delivery pipe, an exhaust pipe and a lower piston part.
Owner:TIANJIN UNIV
Wireless low-power-consumption sensor network system for geological disaster early warning and using method thereof
PendingCN110650451ALow comprehensive costImprove securityTransmission systemsParticular environment based servicesTelecommunicationsMonitoring site
The invention relates to an alarm for responding to disaster events, in particular to a wireless low-power-consumption sensor network system for geological disaster early warning and a using method thereof. The wireless low-power-consumption sensing network system for geological disaster early warning comprises a wireless monitoring point (1) and is characterized by further comprising an early warning point (2) and a monitoring cloud (3), wherein the wireless monitoring point (1) comprises a sensor (11), a detection circuit (12), a microprocessor (13), a wireless communication module (14) anda power source (15); the early warning point (2) comprises a remote terminal unit (21), an early warning indication device (22) and an uninterruptible power supply (23); and each wireless communication module (14) is wirelessly connected with the remote terminal unit (21) or the monitoring cloud (3) of the early warning point (2), and the remote terminal unit (21) is wirelessly connected with themonitoring cloud (3). The wireless low-power-consumption sensor network system is high in environmental adaptability, reduces the system cost, and is high in monitoring automation degree.
Owner:浙江同禾传感技术有限公司
Noise outdoor automatic monitoring device
InactiveCN103776525AEnable long-term monitoringSubsonic/sonic/ultrasonic wave measurementTransmission systemsNoise monitoringCopper wire
Disclosed is a noise outdoor automatic monitoring device. The device is a noise monitoring device which is capable of working outdoor around the clock and has with a real-time remote monitoring function and belongs to the technical field of noise detection. The device is formed through rotating assembling of an HS5633T sound level meter (1) produced by Jiaxing Hengsheng Electronics, Co., Ltd , a 5m extension cable (2), a 1.2m extension rod (3), a wind and rain cover (4), an outdoor rain-proof box (5), a 6 / 12V output lithium battery group (6), a Zigbee wireless communication module (7) produced by Helicomm, a solar-energy power supplying module (8), a 0.75-1mm<2> polyvinyl-chloride insulated copper wire cord (9) and noise data acquisition software NoiseView (10) and the like. The noise outdoor automatic monitoring device is a noise monitoring device which is applicable to long-term monitoring of outdoor noises and performs remote control of monitoring activities so that problems of high noise monitoring cost and inadequate monitoring data of traditional monitoring traditions are solved.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
Fuel cell electrocatalytic porous gold electrode with sugar as raw material, preparation method thereof and application of fuel cell electrocatalytic porous gold electrode in artificial intelligence sensor
PendingCN110148758ADoes not affect brain functionEnable long-term monitoringCell electrodesInternal electrodesAlloyElectron
The invention discloses a fuel cell electrocatalytic porous gold electrode with sugar as a raw material, and a preparation method thereof. The preparation method comprises the following steps of (1) electrodepositing a gold-tin alloy with a foam metal as a substrate, and (2) removing a metal tin. The porous gold electrode prepared by the invention has high active site density per unit area and large active area, the electron transport is facilitated, the effect of catalyzing the oxidation of the sugar is higher, and therefore, a fuel cell system with long life operation is provided.
Owner:广州钰芯传感科技有限公司
RFID based system for monitoring the corrosion of reinforcement in concrete
InactiveCN105334151AEnable long-term monitoringReduce power consumptionWeather/light/corrosion resistanceWireless transceiverEngineering
The present invention provides an RFID based system for monitoring the corrosion of reinforcement in concrete. The system includes an embedded sensor and an external circuit. The embedded sensor is an LC oscillation circuit based on reinforcement equivalent, and the external circuit is divided into an external detection circuit and a wireless transceiver circuit. The external detection circuit has the main functions of providing a sweep frequency excitation source for the LC oscillation circuit and collecting signals reflecting reinforcement corrosion from the embedded sensor; and the wireless transceiver circuit is responsible for maintaining communication between nodes as well as between the nodes and sink nodes. The on-off situation of steel wires in different thicknesses can reflect the different degrees of corrosion of reinforcement in concrete structure. The system is wireless and passive, can achieve long-term monitoring; and compared with the traditional corrosion monitoring, the method can reflect different degrees of reinforcement corrosion in concrete.
Owner:宋文杰
Gas well storage type integrated layered production allocation pressure gauge
ActiveCN105888650ASimple structureAvoid interlayer interferenceSurveyFluid removalOil productionProcess engineering
The invention relates to the technical field of oil production engineering, and belongs to a gas well storage type integrated layered production allocation pressure gauge, which solves the problem in the prior art that long-term pressure monitoring and productivity allocation during a dynamic production process of two gas producing zones cannot be realized at the same time. The gas well storage type integrated layering and production allocating pressure gauge is formed by a salvaging connector (1), a positioning main body (2), anti-rotation pins (3), positioning scissors (4), torsion springs (5), scissor pins (6), regulating sleeves (7), a pressing cap (8), an air faucet (9), regulating rings (10), sealing packings (11), pressing rings (12), a production allocation main body (13), a sensor (14), a back-up nut (15) and a pressure gauge cabin (16). The gas well storage type integrated layered production allocation pressure gauge disclosed by the invention has the advantages that the structure is simple and reliable, static and dynamic production of two kinds of gas producing zones and long-term monitoring on pressure in a shaft can be realized at the same time, and the like.
Owner:PETROCHINA CO LTD +1
Method for measuring earth pressure on outer side of shield tunnel
ActiveCN110044529AEnable long-term monitoringGuaranteed constant temperatureForce transducersMeasurement deviceElectronic control system
The invention relates to a method for measuring earth pressure on the outer side of a shield tunnel. The adopted measurement device comprises an oil bag, a silicon rubber O-shaped sealing ring, a water-swelling rubber sleeve, a cylinder barrel, a piston, a steel wire rope for pulling the piston, a piston installation support component for installation, an electronic control system and an oil supply unit, wherein the oil bag is used to sense soil deformation and transfer earth pressure, is meshed with the cylinder barrel by threads, and presses the silicon rubber O-shaped sealing ring to realize the sealing of hydraulic oil; the lower part of the cylinder barrel is provided with an external thread and an internal thread, the external thread is matched with the internal thread of a hoistinggrouting hole, and the internal thread is connected with the piston installation support component; a convex groove for fixing the piston is arranged at a lower position of the cylinder barrel, the threads at the bottom and the top of the cylinder barrel have opposite directions, and the thread at the bottom of the cylinder barrel has the same direction as the internal thread of the hoisting grouting hole; and the piston is located in the cylinder barrel, and comprises an "upper" part of the piston, a formulation pair wire, a heating rod, a pressure liquid level set temperature transmitter, anoil delivery pipe, an exhaust pipe and a "lower" part of the piston.
Owner:TIANJIN UNIV
Solid explosive packing box internal environmental monitoring system
PendingCN109991897ARealize acquisitionFlexible monitoringProgramme controlComputer controlCommunication unitEngineering
The invention discloses a solid explosive packing box internal environmental monitoring system. The solid explosive packing box internal environmental monitoring system comprises a packing box internal environmental monitoring module, the packing box internal environmental monitoring module is used for recording and obtaining sealing box internal environmental parameters of a solid explosive underthe condition of storage and transportation, and sending the sealing box internal environmental parameters to control equipment in real time through a wired or wireless communication mode, so that maintenance personnel establish a solid explosive environmental information file conveniently; and the environmental monitoring module comprises a main control unit, and the main control unit is connected with a sensor acquisition unit, a communication unit, a memory unit, a clock unit and a power supply unit. The solid explosive packing box internal environmental monitoring system can effectively solve the problem of poor adaptability and waste of warehouse resources under a wired wiring mode.
Owner:严如强
Fixed type intelligent gradiograph, fixed type intelligent gradiograph system and implementation method
The invention relates to a fixed type intelligent gradiograph, a fixed type intelligent gradiograph system and an implementation method. The gradiograph comprises a cylindrical cavity, micro-electro-mechanical tilt angle sensors are distributed at the upper, middle and lower positions in the cylindrical cavity, an active radio frequency identification data transmission module, a power supply module and a micro-control unit module are arranged close to the micro-electro-mechanical tilt angle sensor in the middle and are integrated to an IC circuit board, the three micro-electro-mechanical tiltangle sensors are connected with the micro-control unit module, the two micro-electro-mechanical tilt angle sensors respectively located at the upper and lower positions are connected with the micro-control unit module through middle axis cables, and the power supply module is used for supplying power to the whole gradiograph; and the micro-control unit module is connected with an external data collection end through the active radio frequency identification data transmission module. According to the fixed type intelligent gradiograph, the layout of a monitoring system is simplified, the usability of the monitoring system is improved, and the monitoring precision of the oblique and horizontal translation station changes of an underground space engineering structure is improved.
Owner:HEBEI UNIV OF TECH
Device for monitoring prestress loss of steel strand
InactiveCN106153226ABendableIt has the following beneficial effects: the steel strand prestress loss monitoring device can realize bendingForce measurement by measuring optical property variationGratingFiber Bragg grating
The invention relates to a device for monitoring the prestress loss of steel strands, which includes an optical fiber sensor, a temperature compensation sensor, a bellows, a lead protection sleeve, a sensor lead, a sensor protection gasket and a light grating demodulator; The optical fiber sensor is arranged at the inflection point of the steel strand along the length direction of the steel strand in the bellows, and the optical fiber sensor and the temperature compensation sensor are both connected to the optical grating demodulator through the sensor lead wire , the optical grating demodulator is used to obtain the wavelength information collected by the sensor in real time, and then obtain the real-time prestress change of the steel strand. The invention can solve the problem of lack of direct monitoring method for prestress loss in the construction process of existing large-scale building prestress components, and has convenient construction, simple operation and good engineering applicability.
Owner:FUZHOU UNIV
Self-generating road quality monitoring system
InactiveCN111637919AAccurate collectionReduce long-term monitoringMeasurement devicesTransmission systemsTelecommunicationsWireless transmission
The invention discloses a self-generating road monitoring system. The self-generating road monitoring system comprises an ROADTRAXBL intelligent traffic sensor, a raspberry pi, an HM1500LF humidity sensor, a DS18B20 temperature sensor, a wireless transmission module and terminal equipment. Therefore, problems that a road monitoring system in the prior art is short in service life and large in environmental pollution are solved, self power supply of the monitoring system is achieved, road information collection is more accurate, and the monitoring data transmission speed is higher.
Owner:HANGZHOU WOLEI INTELLIGENT TECH
Underground water level metering device
PendingCN106092268ASmall stretch coefficientReduce measurement errorLevel indicators by floatsDrive wheelEngineering
The invention discloses an underground water level metering device. The device comprises an undamped pulley arranged on a pulley base, a measuring rope is hung on the undamped pulley, a buoy is tied to one end of the measuring rope, a weight is tied to the other end of the measuring rope, monitoring points are arranged on the surface of the measuring rope at equal intervals, a monitor is arranged above the undamped pulley and connected with a controller, and the monitor reads changes of the monitoring points on the measuring rope to calculate the change value of the water level. The undamped pulley is coaxially provided with a micro driven wheel, a minimal damper is disposed between the micro driven wheel and the undamped pulley, a cycloid pin is arranged on the micro driven wheel, and the two sides of the cycloid pin are provided with a forward blocking piece and a reversing blocking piece respectively. When the cycloid pin touches the forward blocking piece, negative signals are transmitted to the controller, otherwise, the negative signals are transmitted to the controller, the controller judges whether the undamped pulley rotates clockwise or anticlockwise according to positive signals or negative signals, and accordingly whether the water level is raised or decreased is judged. The device can be used for automatically monitoring the underground water level for a long time.
Owner:吴小明
Apparatus used for monitoring loss of pre-stress of steel stranded wires
InactiveCN106969862ABendableEnables direct monitoringForce measurement by measuring optical property variationGratingPre stressing
Owner:FUZHOU UNIV +1
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