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30results about How to "Monitor displacement" patented technology

Virtual stable baseline satellite orientation method and device

The invention provides a virtual stable baseline satellite orientation method and device. The method includes the steps that amplifying, down-conversion and signal conditioning are conducted on satellite signals so as to convert the satellite signals into digital signals; capturing, tracking and demodulation are conducted on the digital signals, and the pseudorange, the carrier phase, the telegraph text and other original observation values of a satellite are obtained; positioning calculation and carrier phase solving ambiguity are conducted through the original observation value, and an orientation measurement value containing satellite antenna baseline deformation is calculated; the deformation quantity of a satellite antenna baseline is measured through an optical imaging system fixedly connected with an antenna; the satellite antenna baseline orientation result is amended through the deformation quantity, and the virtual stable baseline orientation result is obtained. According to the virtual stable baseline satellite orientation method and device, an optical imaging angle measuring system is additionally arranged on the basis of a satellite orientation system, possible displacement of the satellite antenna in a deformation environment is monitored, and stable baseline orientation output unrelated to the environment change is achieved.
Owner:湖南航天电子科技有限公司 +2

Well cover with anti-theft function

The invention provides a well cover with an anti-theft function. The well cover comprises a well cover body and a monitoring module, wherein the well cover body comprises a well cover shell as well as a sensing unit, a signal generating unit and a processing unit which are packaged in the well cover shell; the sensing unit and the signal generating unit are respectively connected with the processing unit; the monitoring module comprises a seal shell as well as a well cover detecting unit, a control unit, a signal transceiving unit and an alarm unit which are packaged in the seal shell; the well cover detecting unit, the signal transceiving unit and the alarm unit are respectively connected with the control unit; the signal generating unit is coupled with the signal transceiving unit; and the signal generating unit adopts a preset identification code for identification. The well cover has the following advantage: when the well cover body is stolen or is subjected to displacement change, and the alarm unit is started for alarming, thus on the basis, the well cover body is quickly and accurately found out via the identification code.
Owner:GUANGDONG CHANGSHI COMM

Novel VR device matching chair

The invention relates to a novel VR device matching chair. The chair comprises a chair seat, a height adjusting frame and a base, wherein the chair seat is perpendicularly arranged at the top of the height adjusting frame; the base is perpendicularly arranged at the bottom of the height adjusting frame; the height adjusting frame can adjust a vertical distance between the chair seat and the base; a signal receiving / transmitting apparatus is arranged on the chair seat and can receive a moving signal of the head of a user sitting on the chair seat; and the base comprises a vertical connecting part, a horizontal connecting plate, a gyroscope, an accelerometer, a pressure sensor, a signal receiving plane layer, a foot signal generator and casters. According to the matching chair, when a VR device is used, motion signals of the head, the waist and two feet of the user are all acquired and can be simulated during interaction, so that the interactive experience effect of the user is improved; and in addition, the matching chair is scientific in design and simple in structure, and action monitoring is comprehensive.
Owner:TIANJIN XIYUE TECH

360-degree stress monitoring optical fiber grating microbend sensor

The invention discloses a 360-degree stress monitoring optical fiber grating microbend sensor. The 360-degree stress monitoring optical fiber grating microbend sensor comprises a circular cylinder inner shell, a sensing optical fiber grating, an outer shell, a connection piece and a spring, wherein a tooth groove which is perpendicular to an end face is machined on an edge circumference of the circular cylinder inner shell; the sensing optical fiber grating encircles the tooth groove; the outer shell surrounds the inner shell, and saw teeth which are coupled with the tooth groove of the inner shell are machined on the inner side surface of the outer shell; the connection piece is used for connecting the inner shell and the outer shell; and the spring is placed on the connection piece in a sleeved mode. In a natural state, the inner shell and the outer shell are tightly attached to the sensing optical fiber grating, but the sensing optical fiber grating is not enabled to deform. When an outside parameter acts on the outer shell, the sensing optical fiber grating is squeezed and bent, and the function of the outside parameter is learnt by measuring the central wavelength drift distance of the optical fiber grating. When the action of the outside parameter disappears, the outer shell returns under the action of the spring. According to the 360-degree stress monitoring optical fiber grating microbend sensor, 360-degree carved teeth are adopted, and the change of the outside parameter can be measured comprehensively. The sensing sensitivity is improved by adopting the optical fiber grating. Simultaneously, the optical time domain reflection technology can be utilized to conduct positioning testing, the position of a measured parameter is judged, and thereby real-time monitoring is achieved.
Owner:HUAZHONG UNIV OF SCI & TECH

Monitoring molecule conformation transition and biochemical reaction method and device thereof

The method thereof comprises: the monitored molecules are absorbed on the surface of micro cantilever; detecting the displacement of the micro cantilever caused by the molecular conformation transformation or biochemical reaction of the monitored molecules. The apparatus thereof comprise: a micro cantilever, an optical lighting system, an optical filter system and an optical imaging system.
Owner:UNIV OF SCI & TECH OF CHINA

Shape-memory alloy material fatigue performance test system in electricity-thermal coupling field

The invention discloses a shape-memory alloy material fatigue performance test system in the electricity-thermal coupling field. The test system comprises a power supply system, a camera system, a temperature acquisition system and a control system; the camera system comprises a camera box with a viewfinder frame, a lighting source, an industrial camera and a camera tripod; the temperature acquisition system comprises a temperature thermocouple and a temperature acquisition card; the control system comprises a time relay and a computer; the shape-memory alloy material is subjected to current loading through the power supply; conduction time of a tested sample and a cooling fan are controlled independently through the time relay. By the arrangement, replacement of the related shape-memory alloy material under the action of current and joule thermal coupling and monitoring of the temperature can be realized, displacement and temperature data of the previous or a plurality of mark points of the monitored sample can be acquired, and the test system is suitable of fatigue performance test of the characterized shape-memory alloy material under the electricity-thermal coupling field.
Owner:SOUTH CHINA UNIV OF TECH

Road surface deformation monitoring method

The invention discloses a road surface deformation monitoring method, which belongs to the technical field of intelligent transportation. The road surface deformation monitoring method is characterized by comprising the following steps of: a, determining a reference value according to an initial condition, and performing information interaction between monitoring devices and a server through a relay and a gateway; B, detecting pavement settlement and deformation through angle changes of attitude sensors in the monitoring devices; C, enabling the gateway to obtain a network relation mapping graph from the server, issuing the network relation mapping graph step by step according to a jurisdiction relation, completing relation mapping, and uploading posture data collected in real time to the server through the relay and the gateway through a Bluetooth network by utilizing the monitoring devices; and D, comparing attitude data acquired by the plurality of groups of monitoring devices with a reference value and historical data respectively by using the server, and acquiring a damage type and a damage range of the road section through model establishment and data analysis. According to the road surface deformation monitoring method, monitoring data can be uploaded in real time, pavement state monitoring and early warning are carried out through modeling and data analysis, and pavement settlement and displacement conditions are effectively monitored.
Owner:四川九通智路科技有限公司

Self-power-generation encircling type marine vertical tube vibration monitoring system

The present invention discloses a self-power-generation encircling type marine vertical tube vibration monitoring system. The system comprises a vertical pipe and a shell. The shell comprises at least two watertight cavity shell assemblies, wherein the watertight cavity shell assemblies are fixed on the vertical pipe in the encircling manner. At least two layers of partition boards are respectively arranged inside each watertight cavity shell assembly. A power generation device, a rectifier, a storage battery pack, a boosting transformer and a sensor are arranged on each layer of the partition board in the weight balanced manner. During the vibration of the vertical pipe, the vertical pipe drives the power generation device to generate the alternating current and the alternating current is converted into the direct current through the rectifier to be stored in a storage battery. The current is supplied to the sensor through the boosting transformer. The sensor monitors the motion state of the vertical pipe. An underwater acoustic transducer is placed at the top of the shell and is used for converting a monitored electric signal into an acoustic signal. The acoustic signal is transmitted to an aquatic reception transducer through the water medium to be converted into an electrical signal. According to the technical scheme of the invention, when flows are coming from all directions, the power generation is realized through the vortex-induced vibration of the vertical pipe. Meanwhile, the generated power is supplied to a monitor and monitoring data are automatically sent back to a platform or a base.
Owner:JIANGSU UNIV OF SCI & TECH

Exercise monitoring bra

The invention relates to an exercise monitoring bar. The exercise monitoring bra comprises a bra body, a flexible sensor component and a microprocessor, wherein the bra body comprises cups, shoulder girdles and a heart-shaped pendant, the number of each of the cup and the shoulder girder is two, one shoulder girdle is connected with one cup, and the other should girdle is connected with the other cup; the heart-shaped pendant is located between the two cups and respectively connected with the two cups; the flexible sensor component comprises multiple strain sensors distributed on the two shoulder girdles and the two cups; the microprocessor is arranged on the bra body, comprises a micro-processing chip and a communication chip; the micro-processing chip is in communication connection with the communication chip; and the multiple strain sensors are all in communication connection with the micro-processing chip. The exercise monitoring bra can be worn by female users in outdoor exercise; each strain sensor can acquire the exercise parameter of the displacement formed by the breast shaking, so that the user can immediately know the physical status during exercise, and the user can select more appropriate sports bra conveniently.
Owner:SHENZHEN INST OF ADVANCED TECH

Evaluation data processing method and system based on underground engineering parameters

The invention discloses an evaluation data processing method and system based on underground engineering parameters, and relates to the technical field of oil and gas exploitation. The method comprises the steps that characteristic parameters such as bit pressure, rotating speed, torque, displacement and drill bit vibration in different time periods are obtained in real time through a near-drilling sensor and sent to a control center to be processed, the processed parameters are stored in a register, and an evaluation model is established through an extreme value search algorithm for evaluation analysis; a historical data scatter diagram is established through the evaluation model and comprehensive drilling experience, and underground working conditions are judged and fed back to an underground drill bit. According to the method, parameters such as the bit pressure, the rotating speed, the torque, the displacement and drill bit vibration in the drilling process can be read in real time, the evaluation model is established to evaluate and analyze the underground working condition, the hysteretic nature of the above-well evaluation analysis amount is overcome, the drilling safety and the drilling efficiency are improved, and the drilling cost is reduced.
Owner:SOUTHWEST PETROLEUM UNIV +1

Road surface deformation monitoring device

The invention discloses a road surface deformation monitoring device, which belongs to the technical field of intelligent transportation equipment. The road surface deformation monitoring device comprises a shell, and is characterized in that the shell comprises a quasi-circular polygonal waterproof shell and a light-transmitting cover, a rechargeable battery, a PCB and a solar panel are arranged in the quasi-circular polygonal waterproof shell, the solar panel is connected with a radio frequency antenna, an attitude detection module, a radio frequency module, a power supply module, a charging module and a Bluetooth MCU are arranged on the PCB, the attitude detection module and the radio frequency module are electrically connected with the Bluetooth MCU, the power supply module is electrically connected with the attitude detection module, the Bluetooth MCU and the radio frequency module, the charging module is electrically connected with the rechargeable battery, the rechargeable battery is electrically connected with the power supply module, and the attitude detection module comprises a three-axis MEMS gyroscope and a three-axis MEMS accelerometer. The road surface deformation monitoring device can effectively monitor pavement settlement and displacement, can monitor the pavement damage condition in an all-weather mode, and is conductive to improving the early warning effect.
Owner:四川九通智路科技有限公司

Filling stope sealing device and system with monitoring function

The invention provides a filling stope sealing device and system with a monitoring function, and relates to the technical field of filling stope sealing devices. The filling stope sealing device withthe monitoring function comprises a framework and fixing frames connected with the two ends of the framework, and the framework comprises a plurality of arc-shaped beams; the filling stope sealing device further comprises at least one of a pressure monitor, a strain monitoring assembly and a displacement monitoring assembly; the pressure monitor is clamped between the fixed frame and at least oneend part of the at least one arc-shaped beam; the strain monitoring assembly is mounted on the inner arc side of at least one arc-shaped beam; and the displacement monitoring assembly is located on the inner arc sides of the multiple arc-shaped beams. The filling stope sealing device can effectively monitor the mechanical and deformation characteristics with the sealing framework as a main stressunit, data support is provided for timely and accurately mastering the mechanical state of the sealing device in the filling process and judging the overall reliability and stability of the sealing device, after monitoring is completed, all monitoring structures can be recycled, and the cost is low.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

Novel tracheal catheter device with infrared device and tooth pad

The invention discloses a novel tracheal catheter device with an infrared device and a tooth pad. The novel tracheal catheter device comprises three parts including a catheter, the infrared device and the tooth pad, wherein the catheter comprises a catheter main body (1); the lower end of the catheter main body is provided with an inflating bag (2); a part capable of absorbing infrared rays is arranged at the upper end of the catheter main body (1); the infrared device is provided with a catheter fixing clamp (7); the catheter fixing clamp (7) comprises two arc-shaped fixing arms (14); only one end of the two fixing arms is connected; the two fixing arms of the catheter fixing clamp (7) have the elasticity; the fixing arms (4) are fixedly connected with the tooth pad (15); the tooth pad (15) is a hollow cylinder. The novel tracheal catheter device has the advantages that the design is simple; the prices is low; the operation is convenient; the tracheal catheter fixing effect can be achieved through the novel tracheal catheter device with an infrared ray absorption coating; the position of the tracheal catheter can be monitored in real time.
Owner:CANCER INST & HOSPITAL CHINESE ACADEMY OF MEDICAL SCI

Electric screwdriver

PendingCN113878534AAutomatic and precise control of job statusMonitor displacementSpannersWrenchesDrive shaftGear wheel
The invention discloses an electric screwdriver which comprises a striking shaft, a motor, a planetary speed reducing mechanism and a torque monitoring mechanism. One end of a transmission shaft is clamped and tightly matched with an output shaft of the motor, and the other end is provided with a gear part which is internally meshed and fixed with a sun gear of the planetary speed reducing mechanism; the torque monitoring mechanism comprises a driving shaft, a clutch sleeve, a steel ball and a displacement detector; the clutch sleeve, the clutch end I of the striking shaft and the clutch end II of the driving shaft are sequentially sleeved from outside to inside; the clutch end I is provided with a steel ball channel; the clutch end II is provided with a protruding part; and the protruding part outwards extrudes the circular-truncated-cone-shaped inner wall of the clutch sleeve in the radial direction when the protruding part is aligned with the steel ball channel, and the clutch sleeve is made to move in the axial direction, so that torque change of the electric screwdriver is converted into displacement change of the clutch sleeve, the motor is automatically controlled according to the monitoring result, and constant-torque control is achieved. The transmission shaft, the motor and the planetary speed reducing mechanism are integrally assembled, so that low-speed and high-torque output is met, the motion transmission precision is improved, and constant-torque control is facilitated.
Owner:ZHEJIANG TAITIAN GRP CO LTD

Novel gabion retaining wall capable of dissipating energy and greening and construction method

The invention provides a novel gabion retaining wall capable of achieving energy dissipation and greening and a construction method. The novel gabion retaining wall comprises an energy dissipation and greening gabion net, plain concrete, prefabricated concrete slabs, ribbed steel bars, vegetation nutrient soil, energy dissipation materials, steel strands, pressure reduction rings, a three-dimensional vegetation net pad, geotechnical cloth, stone, transverse reserved holes, longitudinal reserved holes and cross-shaped buckles. The side, away from the slope, of the energy dissipation greening gabion net is filled with the vegetation nutrient soil. The side, close to the side slope, of the energy dissipation greening gabion net is filled with the energy dissipation materials, the steel strands and the pressure reduction rings are flexibly connected with the energy dissipation greening gabion net, the formed whole system can eliminate partial side slope soil body pressure, and the purpose of stabilizing the side slope is achieved. According to the technical scheme, in the prior art, the slope protection requirement is met, meanwhile, the landscape greening effect can be achieved, and meanwhile it can be guaranteed that the supporting structure cannot be excessively deformed due to the fact that the supporting structure is subjected to local large slope soil pressure.
Owner:CHINA THREE GORGES CORPORATION

A vibration detection method and related equipment for drilling and blasting construction in the transitional section of soft and hard surrounding rock

The application discloses a vibration detection method and related equipment for drilling and blasting construction in the transitional section of soft and hard surrounding rocks. Vibration data in the rock, obtain vibration data before construction, during construction and after construction; draw vibration data over time; collect displacement data of support frame; calculate displacement rate of support frame; construct 3D dynamic view ; Collect the pressure data of the pressure sensor array; mark the coordinates of the pressure sensor unit whose pressure change per unit time exceeds the set pressure value on the three-dimensional dynamic view; collect the water content data in the surrounding rock; generate a dynamic distribution map of the water content, And superimposed in the three-dimensional dynamic view; monitor the state of the support frame and surrounding rock; adjust the parameters of the drilling and blasting equipment to adjust the vibration impact of the drilling and blasting construction on the surrounding rock in the transitional section of soft and hard surrounding rock. It can detect the vibration of drilling and blasting construction in multiple directions.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1

Longitudinal beam and arch rib forming control device of steel arch bridge

According to the forming control device for the longitudinal beam and the arch rib of the steel arch bridge, the displacement and the downward pressure of the longitudinal beam can be accurately and efficiently monitored through the longitudinal beam displacement and downward pressure monitoring device, and meanwhile the displacement and the downward pressure of the arch rib can be accurately and efficiently monitored through the arch rib displacement and downward pressure monitoring device; the dismantling time of the temporary supporting system is accurately controlled, and harmful internal force generated by the arch rib can be accurately controlled and avoided. The construction of a beam-first and arch-second method can be met, segmental hoisting construction of the arch ribs and the longitudinal beams is achieved, and the construction efficiency is improved.
Owner:SHANGHAI CONSTR NO 1 GRP

An embracing marine riser vibration monitoring system capable of self-generating

ActiveCN106979816BAutomatically sent backMonitor accelerationVibration measurement in solidsBatteries circuit arrangementsVertical tubeTransformer
The present invention discloses a self-power-generation encircling type marine vertical tube vibration monitoring system. The system comprises a vertical pipe and a shell. The shell comprises at least two watertight cavity shell assemblies, wherein the watertight cavity shell assemblies are fixed on the vertical pipe in the encircling manner. At least two layers of partition boards are respectively arranged inside each watertight cavity shell assembly. A power generation device, a rectifier, a storage battery pack, a boosting transformer and a sensor are arranged on each layer of the partition board in the weight balanced manner. During the vibration of the vertical pipe, the vertical pipe drives the power generation device to generate the alternating current and the alternating current is converted into the direct current through the rectifier to be stored in a storage battery. The current is supplied to the sensor through the boosting transformer. The sensor monitors the motion state of the vertical pipe. An underwater acoustic transducer is placed at the top of the shell and is used for converting a monitored electric signal into an acoustic signal. The acoustic signal is transmitted to an aquatic reception transducer through the water medium to be converted into an electrical signal. According to the technical scheme of the invention, when flows are coming from all directions, the power generation is realized through the vortex-induced vibration of the vertical pipe. Meanwhile, the generated power is supplied to a monitor and monitoring data are automatically sent back to a platform or a base.
Owner:JIANGSU UNIV OF SCI & TECH

A method and system for processing evaluation data based on downhole engineering parameters

The invention discloses a data processing method and system based on downhole engineering parameter evaluation, and relates to the technical field of oil and gas exploitation; comprising the steps of: using a near-drilling sensor to obtain real-time drilling pressure, rotational speed, torque, displacement, and drill bit vibration in different time periods characteristic parameters, and send them to the control center to process the parameters, store the processed parameters in the register and use the extreme value search algorithm to establish an evaluation model for evaluation and analysis, establish a historical data scatter diagram through the evaluation model and comprehensive drilling experience, and judge the underground work. and feed back to the downhole drill bit. The invention can establish an evaluation model to evaluate and analyze the downhole working conditions by reading parameters such as drilling pressure, rotational speed, torque, displacement and bit vibration in the drilling process in real time, overcomes the hysteresis of uphole evaluation and analysis, and improves drilling efficiency. The safety and drilling efficiency are improved, and the drilling cost is reduced.
Owner:SOUTHWEST PETROLEUM UNIV +1

Device, method and application for measuring kinetic energy of wave action

The invention discloses a wave action kinetic energy measuring device, method and application thereof. The measuring device includes a floating body, a water surface measuring part and an underwater measuring part. The floating body can float on the water surface, and the water surface measuring part is arranged on the floating body. The floating body passes through The underwater measuring part is connected to the bottom of the water, the water surface measuring part is used to obtain the kinetic energy of the wave acting on the horizontal plane, and the underwater measuring part is used to obtain the kinetic energy of the wave acting on the direction perpendicular to the horizontal plane and the compensation of the kinetic energy in the horizontal plane. The measuring device accepts the wave action through the floating body, and obtains the kinetic energy of the wave action in the horizontal plane through the water surface measuring part and the underwater measuring part, and the kinetic energy in the horizontal plane can be decomposed orthogonally, and the wave action in the vertical direction is obtained through the underwater measuring part. The kinetic energy in the direction of the horizontal plane, so as to simultaneously obtain the kinetic energy in three directions of the space Cartesian coordinate system, and the three directions do not interfere with each other during measurement.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Working well-free heading machine synchronous grouting simulation test platform

The invention discloses a working well-free heading machine synchronous grouting simulation test platform, comprising a large sunken type comprehensive test bench, a simulative duct piece, a simulative shield tail, a connection flange, a cross beam, a round tunnel portal, a hydraulic cylinder, a grouting pump, an earth pressure cell and a ground surface displacement meter. The large sunken comprehensive test bench comprises a starting well, a filling well and a receiving well; the simulative duct piece and the simulative shield tail are mounted in the filling well and covered with soil of different depth, the right end of the simulative duct piece is fixed with the well wall of the receiving well through the connection flange, the hydraulic cylinder is fixed on the inner wall of the leftmost end of the simulative duct piece, the simulative shield tail is sleeved on the periphery of the simulative duct piece and can slide axially along the outer wall of the simulative duct piece, the simulative shield tail is provided with a grouting pipeline and a grouting hole connected with the grouting pipeline, the cross beam is fixed on the leftmost end of the simulative shield tail, the grouting pump is connected with the grouting pipeline, the earth pressure cell is arranged in the duct wall of the simulative duct piece and the soil, and the ground surface displacement meter is arranged on the surface of the soil body. The working well-free heading machine synchronous grouting simulation test platform can simulate the whole process of synchronous grouting of the working well-free shield machines under different earth.
Owner:上海盾构设计试验研究中心有限公司 +3

An online monitoring system for the displacement of the stator core of the hydroelectric generator

The invention relates to the technical field of hydraulic generator operation state monitoring, in particular to an online monitoring system for stator core displacement of a hydraulic generator. The invention arranges the sensing optical fiber in the groove of the stator iron core, monitors the displacement of the stator iron core indirectly through monitoring the optical power of the sensing optical fiber, detects the fault of the stator iron core in time and performs fault location.
Owner:STATE GRID CORP OF CHINA +1

Monitoring device

PendingCN110361045AEarly warning and detection of crackingAvoid lostMeasurement devicesElectricityTime condition
The invention discloses a monitoring device which can be used to monitor real-time conditions of mountains, grounds, bridges, tunnels, dams, buildings, oil and gas pipelines, water pipelines, poles, roads, rails, architectural artifacts. The monitoring device comprises a signal monitor, a signal collector, a signal transmitter, a power supply device and a fixation part; the signal monitor is laidin the surface of a monitored object or fixed to the inside of the monitored object to detect a movement signal of the monitored object; the signal collector collects and stores the movement signal; the signal transmitter transmits the movement signal; one end of the signal collector is electrically connected with the signal monitor, and the other end of the signal collector is electrically connected with the signal transmitter; the power supply device provides electric energy; and the fixed part fixes the signal monitor to the surface or inside of the monitored object. The monitoring device can monitor real-time condition of the mountains, and raises early warning against mountain landslide or crack timely, so that measures can be taken timely, and financial loss can be reduced.
Owner:深圳市凤英凤仪科技有限公司

Discrete single-point displacement dynamic monitoring device and method based on laser ranging

The invention provides a discrete single-point displacement dynamic monitoring device based on laser ranging, and the device comprises: a receiving target which comprises a target surface made of a light-absorbing material, wherein the target surface is provided with a reflective ring capable of diffusely reflecting incident light; a connecting rod, wherein a first end part of the connecting rod is fixedly connected with a measured discrete single point, and a second end part of the connecting rod is fixedly connected with the target surface and is located at the circle center of the reflective ring; a laser emitter which comprises a base and two laser range finders arranged on the mounting surface of the base, wherein two beams of laser emitted by the two laser range finders are parallel; a driving mechanism which is used for driving the base to translate and rotate; a signal processing system which is in signal connection with the laser range finder and the driving mechanism, wherein the displacement of the discrete single point is calculated through a built-in algorithm according to the distance value measured by the laser range finder and the translation distance and the rotation angle of the base. The invention further provides a discrete single-point displacement dynamic monitoring method based on laser ranging. Displacement generated by discrete single points can be effectively monitored in real time.
Owner:CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD

A filling stope closure device and system with monitoring function

The invention provides a filling stope closure device and system with a monitoring function, and relates to the technical field of filling stope closure devices. The filling stope closure device with a monitoring function provided by the invention includes a framework and a fixing device connected to both ends of the framework. The frame, the skeleton includes a plurality of arc beams, and at least one of a pressure monitor, a strain monitoring component and a displacement monitoring component; the pressure monitor is sandwiched between the fixed frame and at least one end of at least one arc beam between; the strain monitoring component is installed on the inner arc side of at least one arc beam; the displacement monitoring component is located on the inner arc side of multiple arc beams. The above-mentioned filling stope closure device can effectively monitor the mechanical and deformation characteristics of the closure skeleton as the main force-bearing unit, and provide data for timely and accurate grasp of the mechanical state of the closure device during the filling process and to judge the overall reliability and stability of the closure device support, and after the monitoring is completed, each monitoring structure can be recycled, and the cost is low.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

Monitoring device and monitoring method for lift wall deformation of ship lock

The invention discloses a monitoring device for lift wall deformation of a ship lock and belongs to the technical field of civil engineering construction. The monitoring device comprises a preset datum mark, a plurality of settlement observation points, a plurality of metal tubular columns, a plurality of inclinometers, and a plurality of displacement observation points, wherein the settlement observation points are in one-to-one symmetrical distribution along the vertical direction and are arranged on a front toe baseboard of the lift wall of ship lock and the top end of the lift wall; the metal tubular columns which comprise a plurality of same metal tubes are vertically embedded in a back toe baseboard of the lift wall; the inclinometers are vertically embedded in the lift wall concrete and the upper ends of the inclinometers are exposed out of the top end of the lift wall; the inclinometers are formed by a plurality of same flexible tubes which are connected in turn following the increasing of the construction height of the lift wall; and the displacement observation points are arranged on the top end of the lift wall. The invention also discloses a method for monitoring the lift wall deformation of a ship lock by using the device. By using the method and device provided by the invention, the defect that the traditional construction monitoring and operation period monitoring are mutually separated is avoided, the long-term, systematic and precise monitoring for the lift wall of a ship lock is realized, and the engineering use value is higher.
Owner:HOHAI UNIV

Naked pipe clamp valve

The invention provides an exposed pipe clamp valve which comprises a rubber pipe, the two ends of the rubber pipe are sleeved with flange frames, a pipeline frame is arranged between the two flange frames, and the pipeline frame is connected with the flange frames. The flange frame comprises an upper annular frame arranged at the top end of the outer portion of the rubber pipe in a sleeving mode and a lower annular frame arranged at the bottom end of the upper annular frame, a first connecting rod is connected between the upper annular frame and the pipeline frame, and a second connecting rod is connected between the lower annular frame and the pipeline frame. The pipeline frame comprises an upper supporting frame hinged to the first connecting rod, a lower supporting frame arranged at the bottom end of the upper supporting frame and a screw rod sequentially penetrating through the two ends of the upper supporting frame and the two ends of the lower supporting frame from top to bottom. According to the pipe clamp valve, a flange edge of a rubber pipe can be pressed tightly in the mounting process while a worker can disassemble the pipe clamp valve conveniently, and therefore the stability and the sealing performance of the pipe clamp valve are improved.
Owner:WUHU HONGDA RUBBER & PLASTIC VALVE MFG CO LTD
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