52results about How to "Real-time monitoring of displacement" patented technology

The invention relates to large scale component assembling and welding deformations automatic real time monitoring method. Its feature is that it uses coordinate system as measuring basis expressed by axes and generatrix in whole measuring system. The method includes the following steps: establishing the coordinate system for the whole deformation measuring basis; setting measuring point at the outer wall of the component 1 and 2; measuring the coordinate for all the measuring points; processing component 1 and 2 installing measuring and welding deformation monitoring. The invention has the advantages of realizing the monitoring without setting fixed measuring installation onsite and special tool set up, fast measuring speed, high working efficiency means three minutes per period.

The invention provides a tunnel stability protection and prediction system. The tunnel stability protection and prediction system comprises a tunnel inverted-arch support, shotcrete, an intelligent anchor rod, a data acquisition box, a data transmitting box, and a stress and displacement prediction unit. The intelligent anchor rod comprises an anchor rod body, a displacement sensor, a stress sensor and a data line, wherein the displacement sensor is used for monitoring rock mass deformation. The tunnel inverted-arch support is supported at the bottom end of the tunnel. The intelligent anchor rod is installed in the rock mass of a tunnel wall in a hole-drilling method, is fixed to the tail end in a slurry-grouting mode through the outer side, and is fixed in the primary lining of the tunnelby the shotcrete. The intelligent anchor rod is connected with the data acquisition box through the data line. The data acquisition box is electrically connected with the data transmission box. The data transmission box is wirelessly connected with the stress and displacement prediction unit. A tunnel rock mass deformation prediction method is used for calculating the deformation trend of the rock mass of the tunnel wall. The stability of tunnel rock mass is maintained, deformation condition of rock mass is predicted, and the maintenance of structural stability is ensured.

The invention discloses a system and method for testing the prestress under an anchor at the front end of a jack. The system comprises an anchor device, a displacement sensor, a force sensor, a tensioning jack, a steel stranded wire, an oil pump, a test host machine, a position limiting device and a clamping sheet. When the system performs test, the displacement sensor reads the displacement quantity of the clamping sheet in real time; the tensioning force value is detected by the force sensor in real time; the on/off state of the tensioning jack is controlled through the test host machine; the test host machine draws a test curve chart on the basis of the real-time detected displacement quantity and the real-time detected tensioning force value; and when the displacement quantity reachesa set value, the test host machine controls the oil pump to stop working, and the tensioning jack stops tensioning. The system and the method can solve the technical problems that during the test by the existing reverse-tensioning method, the clamping sheet is not limited, so that the over tensioning is caused, and steel stranded wire damage and field accidents occur.

The present invention provides a durability testbed of a flywheel for an automobile and a test method thereof. The testbed comprises a mechanical structure, a hydraulic pressure station and an electric control portion. The mechanical structure comprises a test platform, a swing hydraulic cylinder, a first servo valve, a transmission shaft, a connection piece, an automobile flywheel, a servo hydraulic cylinder and a second servo valve. The hydraulic pressure station supplies power source for a system; the mechanical structure is configured for installation of an automobile flywheel clamp; and the electric control portion is configured to perform real-time control of the swing hydraulic cylinder and the servo hydraulic cylinder. The test method comprises: the swing hydraulic cylinder performs reciprocating swing with high frequency of 20Hz at a neutral position to drive the rotation of the transmission shaft, torque is transmitted and applied to the automobile flywheel through the mechanical structure so as to generate torque for the automobile flywheel, the torque peak value is in the 5000N.m range, the servo hydraulic cylinder performs reciprocal rectilinear motion in the range of -/+mm, and the frequency is 20Hz, so that the actual working conditions are simulated. The durability testbed of the flywheel for the automobile and the test method thereof are novel in experiment mode, convenient to operate and high in controllability and can realize high-frequency and high-precision control.

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.

The invention relates to the field of manufacturing of a micro horn, and provides a method of defining a working limit of a loudspeaker. The displacement of the loudspeaker in sweep frequency is monitored in real time; when the loudspeaker reaches the limit, the limit displacement is recorded; the maximum temperature resistance value of the loudspeaker and the limit displacement are combined to the working limit condition of the loudspeaker; and thus, the working limit of the loudspeaker can be nominal more accurately.

The invention discloses a high frequency ultrahigh accelerating and decelerating micro-cutting motion control mechanism driven by the gravity centre of a linear motor. A single guide rail is adopted for guiding precisely; the moving element comprises a sliding block, a linear motor runner, a workbench, a tool rest, and cutting tools which are symmetrically arranged on two sides of the guide rail, the parallel gravity centers of a plurality of linear motors drive the cutting tools; a controller, a PWM (Pulse Width Modulation) driver, a linear motor group and a position signal detecting element constitute a closed-loop servo feedback system, the digital current direct PWM is adopted by the closed-loop system to control the reciprocating running of the cutting tools, so that the positional accuracy and the linear resolution of the cutting tools can reach the level of micro-nanometer, and the reciprocating micro-cutting action of the cutting tools with high precision and resolution is realized. According to the high frequency ultrahigh accelerating and decelerating micro-cutting motion control mechanism driven by the gravity centre of the linear motor, two-level galloping protection technology is adopted, and the soft limiting and the hard limiting work together to prevent the moving element from galloping. The motion control mechanism is stable in operation, has high positioning accuracy and repeated positioning, strong ultrahigh decelerating and high-frequency responding performance, and is suitable for the technical field of ultraprecise high accelerating and decelerating high resolution micromachining.

The invention discloses a variable-rate feathering shutdown control method for a wind turbine generator set. According to the method, a Beidou positioning system is mainly utilized to monitor the posture of the generator set in real time, the displacement of the engine room movement is acquired in real time, the state of the load borne by the generator set is estimated according to the displacement condition of an engine room, and then the impact load of a tower can be effectively reduced during the shutdown of the generator set through variable-rate feathering shutdown control strategies under different displacements according to the analyzed load condition, so that the generator set is enabled to carry out more stably feathering shutdown, the service life of the generator set is prolonged, and the variable-rate feathering shutdown control method has practical popularization value and is worthy of popularization.

The invention provides hot-gas welding plastic welding equipment and a welding method. The equipment comprises a base, on which a first frame, a second frame, a third frame and a fourth frame are arranged, wherein a lower slide table and an upper slide table are arranged on the first frame and the second frame, the upper end of the lower slide table is provided with an upper mold clamp, the lowerend of the upper slide table is provided with a lower mold clamp, the third frame and the fourth frame are provided with a middle slide table used to occupy or avoid space positions among the lower slide table and the upper slide table and the lower slide table, and a nitrogen heating middle mold is arranged on the middle slide table. When welding with hot gas welding plastic welding equipment, there is no such problem of poor welding quality after the hot plate is contaminated by plastic parts in hot plate welding, and there is no such problem of friction debris in the process of vibration friction welding. Heated nitrogen is used to heat the welding surface of an upper plastic part and a lower plastic part to the welding temperature for welding then, which costs less than the laser welding. And as long as it is a plastic part, the plastic part can be welded by the equipment to expand the application range of the equipment.

The invention discloses a bionic camera device and method in a tunnel based on artificial intelligence, and the device comprises a shell which is provided with a detection system, an automatic alarm system, a control system, and a wireless transmission system. The detection system performs omnibearing real-time detection on the periphery; a plurality of compound eye cameras are arranged right in front of the shell and are used for acquiring high-definition images in the tunnel in a real-time multi-angle range; the distance sensor and the compound eye camera are both connected with the controlsystem, and the control system calculates the target body position information at each moment in real time according to the target body position information detected by the distance sensor and the compound eye camera to judge whether to start the automatic alarm system or not; and the control system transmits the in-hole construction state and the tunnel face condition shot by the bionic camera device to the remote server in real time through the wireless transmission system, and receives a control instruction of the remote server. The structural design based on bionics has the advantages of safety, high efficiency, convenience, quickness, accurate monitoring result and the like.

The invention discloses a tunnel counter-slope dewatering and purifying device and a control method and a purifying method thereof. The tunnel counter-slope dewatering and purifying device comprises a tunnel water tank, the tunnel water tank is connected with the input end of a centrifugal extraction device used for separating silt, the output end of the centrifugal extraction device is connected with a water pump device and a sewage purifying device respectively by a pipeline, and the output end of the sewage purifying device is connected with the pipeline of a water reservoir; sewage in the tunnel water tank pass the centrifugal extraction device and is discharged to the sewage purifying device by a water pump, and the water is purified by the sewage purifying device and stored in the water reservoir; a monitoring module is arranged in the tunnel water tank and is connected with the controller, and the controller is provided with an alarm. When monitoring indicators in the tunnel water tank are higher than preset values, the alarm can send alarm signals. The tunnel counter-slope dewatering and purifying device is scientific and reasonable in design and has the advantages of low price, silt separation, capabilities of monitoring displacement in real time and purifying sewage, remote control and the like.

The invention discloses a similar material simulation experiment apparatus for a pipeline crossing a river. The apparatus comprises a water circulation system, a medium circulation system, a simulation box and a data acquisition system. A simulated riverbed is arranged at the bottom of the simulation box, the medium circulation system comprises a medium box, a medium pipe and a medium pump, and one end of the medium pipe is connected with the medium pump, extends out of the medium box, goes into the simulation box, is buried beneath river sand and then penetrates out of the simulation box to return to the medium box; the water circulation box comprises a water tank, a water pump, at least one water inlet pipe and a water outlet pipe, the water inlet pipe inputs water into the simulation box from the water tank, and the water outlet pipe is connected with the water tank and the simulation box to enable the water to flow back to the water tank from the simulation box so as to form the water circulation system; and the data acquisition system comprises a plurality of test probes, a data transmission line and a data acquisition instrument. The invention also discloses a method for testing by use of the simulation apparatus. The method comprises setting parameters for installing the simulation apparatus according to onsite actual conditions in accordance with a geometric and dynamic similarity ratio, and acquiring data for analysis.

The invention provides a microseismic-shearing-seepage coupling testing device and experiment method, and relates to the technical field of experiment testing. The device comprises a barrel, a monitoring system and a pressure control system, wherein a confining pressure cavity, an axial compression piston and a gas injection chamber are arranged in the barrel; a rubber piston is arranged in the confining pressure cavity; the axial compression piston is provided with a shear displacement meter; a gas pipe plunger, an electric heating wire, a stress sensor, a microseismic sensor and a clamping device are arranged in the gas injection chamber; the monitoring system comprises a strain monitoring system, a temperature monitoring system, a microseismic monitoring system and a flow monitoring system; and the pressure control system comprises a gas cylinder, a control valve, a gas pipe and a flowmeter. By use of the device, microseismic event numbers, shear displacement, permeability and the like in a constant-temperature constant-pressure loading process can be recorded, a corresponding relationship between the microseismic-shear displacement and a rate is analyzed, and data fitting is carried out to obtain a corresponding relationship of microseismic-pore pressure-permeability. Each above parameter is used, and especially a relationship between microseism and the permeability is usedfor guiding the prediction of coal bed gas capacity in engineering application.

The invention discloses an integrated cross-region rescue support system, and each monitoring region is internally provided with an active detection protection system. The system comprises an active monitoring network, a passive monitoring network, an inclination detector and a camera. And the inclination detector, the Beidou positioning module and the camera in each monitoring area are in communication connection with the remote monitoring system. The mountainous area is divided into a plurality of monitoring areas, the base stations form a rescue network, the active detection and protectionsystem forms a disaster detection array, the disaster situation can be monitored in real time and reported in time through the base stations, related departments can find the disaster situation quickly, formulate a disaster relief scheme quickly and establish a disaster relief team, and achieves the efficient disaster emergency rescue command. The inclination detector can monitor rockfall, debrisflow, collapse and other disasters in real time, the Beidou positioning module can monitor the overall displacement of a mountain body, the camera can monitor the road condition of a rescue path in real time, and the best rescue path and strategy can be formulated conveniently during rescue.

The invention relates to a bolt loosening monitoring device which comprises a device body, a clamping mechanism, a sensing assembly and a wireless transmitter. The clamping mechanism comprises two clamping plates which are oppositely arranged, the clamping plates are movably arranged on the device body, a clamping opening for clamping a flange is formed between the two clamping plates, and hole grooves for a bolt to penetrate in are formed in the opposite inner side walls of the two clamping plates. The sensing assembly is arranged in at least one hole groove and used for detecting whether thebolt is displaced or not, and the wireless transmitter is arranged on the device body, electrically connected with the sensing assembly and used for transmitting the serial number of the bolt. Basedon the structure, the clamping mechanism can clamp the flange through the self clamping force, the bolt loosening monitoring device can be easily disassembled and assembled through the self clamping force without any tool, and the installation efficiency of the bolt loosening monitoring device is greatly improved; and in addition, the bolt loosening monitoring device also has the functions of remotely monitoring the bolt loosening condition on line, accurately positioning the position of the loosened bolt and the like.

The invention discloses an automatic-opening-closing conveying mechanism with three rollers rotating automatically for cylinders. The mechanism comprises a machine body, a rotation drive motor, a plurality of clamping rotation rollers, an opening-closing actuator and a drive screw rod. A conveying channel penetrating the whole machine body is arranged in the machine body; the rotation drive motor drives the clamping rotation rollers to rotate through synchronous belts, the plurality of the clamping rotation rollers are evenly distributed on the outside of the conveying channel at intervals, and the clamping rotation rollers are connected in a linkage mode through a plurality of swing connection rods; and one end of the opening-closing actuator is connected with the swing connection rods, and the other end of the opening-closing actuator is connected with the drive screw rod. According to the mechanism, centers of pipes or rods of different diameters during conveying are not changed, the speed and displacement can be monitored in real time through an encoder arranged on the mechanism, and changing of conveying centers of cylinders to be conveyed due to abrasion of roller ways during utilization can be prevented.

The invention provides a displacement monitoring device for lateritic slopes and a use method. The monitoring device comprises a plurality of displacement measuring units and a ground support unit, wherein the ground support unit comprises a plurality of brackets; a pointer is arranged on each bracket; each displacement measuring unit comprises a scale, a displacement transmission cable and a measuring head which are connected in sequence, the displacement transmission cable is sleeved with a sleeve and an inflating device, the scale is located in the corresponding bracket, and the center lineof the scale is located on the center plane of the corresponding pointer. The use method comprises the following steps: assembling the displacement measuring units, fixing the ground support unit andthe displacement measuring units; fixing the measuring heads; recording data; monitoring soil displacement in real time, recording data, and detecting analysis results. According to the displacementmonitoring device for the lateritic slopes and the use method, downslope displacement of each layer and each part of laterite is measured in real time with a mechanical method, and measuring accuracyis guaranteed; the large-area soil condition is monitored by the plurality of displacement measuring units, and efficiency is high.

The invention provides a through hole annular strain measuring device in a static crushing process, belongs to the technical field of static crushing rock or concrete dismounting, particularly relatesto a measuring device for through hole annular strain in the static crushing process. The problem that the measuring result is too great due to reaction heat release of static crushing agent is solved. The through hole annular strain measuring device comprises a sensor and a metal sheet. The through hole annular strain measuring device is mainly used for measuring the through hole annular strainin the static crushing process.

The invention discloses an electronic tag which comprises an MCU master control unit, a GPS positioning module, an NB-IOT module, an Internet of Things card matching the NB-IOT module, a Bluetooth module, a power module and an antenna connected to the NB-IOT module; the NB-IOT module, the Bluetooth module and the power supply module are all connected to the MCU master control unit, the MCU mastercontrol unit is responsible for receiving, processing and transmitting data, and the NB-IOT module is responsible for public network transmission of data, the Bluetooth module is responsible for wireless display of electronic tag information, and the MCU master controller is connected with a sensor module. The electronic tag can be installed on an article and can also be installed on an outer package of the article. The NB-IOT technology is adopted to achieve wide area coverage and low power consumption; and meanwhile, the electronic tag information is wirelessly displayed in cooperation withthe Bluetooth module, a user can identify and display the electronic tag information only by opening the portable mobile phone Bluetooth during use, the cost is low, and is the electronic tag is convenient to use.

The invention discloses a composite type car all built-in elevator state sensor. The composite type car all built-in elevator state sensor adopts composite type multiple sensors to perform state comparison and judgment through an algorithm by utilizing acquired data of a magnetic/photoelectric sensor and an acceleration sensor, is high in reliability, and effectively reduces occurrence of mis-judgment and missed judgment of a conventional multi-magnetic/photoelectric sensor. Compared with a conventional flat-layer monitoring scheme, the composite type car all built-in elevator state sensor canmonitor information such as elevator acceleration, speed and displacement in real time, can timely respond when faults (over-speed, abnormal start-stop and stop at an un-flat layer) occur, and further can analyze and predicate related faults. According to the scheme, the composite type car all built-in elevator state sensor is small in dimension, is simple in structure, is safe, simple and convenient to implement, can be widely suitable for various elevators without modifying the structure of an existing flat-layer sensor. Compared with other multi-magnetic/multi-photoelectric monitoring schemes, the composite type car all built-in elevator state sensor is low in cost, is small in dimension, and also reduces the equipment cost and the mounting cost.

The invention discloses an anti-seismic device for underwater equipment, comprising: a crustal displacement monitoring module, installed and fixed on the measured crustal rock layer, used for real-time monitoring of the displacement of the crustal rock layer movement to obtain a crustal displacement signal, and processing to obtain an electrical signal of the crustal displacement The crustal movement acoustic wave monitoring module is installed and fixed in the measured crustal rock layer for real-time direct monitoring of crustal movement or motion sound waves caused by seabed earthquakes, or installed on underwater engineering equipment for indirect monitoring of seabed crustal movement, earthquakes or tsunamis Generated acoustic wave signals, and convert the motion wave signals into motion wave electrical signals; the signal processing module, whose input end is connected to the crustal displacement monitoring module and the crustal motion acoustic wave monitoring module, is used to detect the crustal displacement electrical signals and/or motion wave electrical signals. The signal is analyzed and processed to obtain the corresponding result information. The invention can directly or indirectly monitor the movement state of the seabed crust and the state of the seabed earthquake in real time.

The invention provides an on-line monitoring device and method for a stamping machine. By arranging a first laser displacement sensor on the embossing punch, and a second laser displacement sensor and a strain sensor on the embossing platform, the processing process of the material sheet Real-time monitoring and monitoring of the processing depth of each piece of material can detect defective material in time, with high detection efficiency and low missed detection rate.

The invention relates to an intelligent mop, which comprises a mop main body, a spraying device, a detergent adding device, a mileage analysis device, a processing device and an indicating device. The intelligent mop is designed with an automatic spraying device and an automatic detergent spraying device; a user can select if the automatic spraying device and the automatic detergent spraying device are used upon demand; a mileage calculating device is designed on the mop for monitoring the placement of the mop in real time, and spraying water and adding detergent according to the displacement; the mop is designed with a man-machine interactive interface, thus the user can manually select the function in need, water amount, the rest detergent and the walked mileage in the mop can be displayed in real time, thereby meeting multiple demands of the user.

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.