43results about How to "Monitor damage" patented technology

The invention relates to a detecting method and a monitoring system for a coupling fault of a rotating machine. The detecting method comprises the steps of using vibrating signal data which are acquired by the rotating machine in a normal working condition and a fault working condition as a training data set, establishing a deep convolutional neural network model, directly using the vibration dataas an input, introducing a self-normalizing strategy for standardizing a neuron activating value, training the parameter of the deep convolutional neural network model, storing the trained parameterdata, acquiring the data in a real-time working condition as testing data, and realizing fault detection through the deep convolutional neural network model. The detecting method and the monitoring system have advantages of realizing no requirement for an accurate mathematical model of an industrial process, facilitating actual application, realizing fault detection and fault working condition classification, effectively monitoring a specific component with mechanical damage, and realizing high detection accuracy.

The invention relates to an ultrasonic monitoring sensor for the corrosion of a steel bar in concrete. The ultrasonic monitoring sensor is characterized by being provided with a steel bar (1), wherein a piezoelectric ceramic column (2) for transmitting is arranged at one end of the steel bar (1) and is used for transmitting ultrasonic waves; a piezoelectric ceramic column (3) for receiving is arranged at the other end of the steel bar (1) and is used for receiving the ultrasonic waves; the axial directions of the piezoelectric ceramic column (2) and the piezoelectric ceramic column (3) are the same as the axial direction of the steel bar; the piezoelectric ceramic column (2) for transmitting and the piezoelectric ceramic column (3) for receiving are provided with a shielding lead wire (4) for transmitting and a shielding lead wire (5) for receiving, respectively; the shielding lead wire (4) for transmitting and the shielding lead wire (5) for receiving are externally provided with a resin insulating layer (6) and a shielding layer (7), respectively; in the use process, the sensor is buried into the concrete during construction; the shielding lead wire (4) for transmitting is connected with a signal generator (8) to generate the ultrasonic waves and the shielding lead wire (5) for receiving is connected with a signal receiver (9) to receive the ultrasonic waves; the corrosion condition of the steel bar in the concrete (10) is monitored according to the change of received ultrasonic wave signals.

Provided is a monitoring method and a monitoring system of wind turbine blades. The monitoring method comprises the following steps: vibration signals of blades of wind turbines are collected by sensors; the vibration signals are extracted by a hub measurement unit disposed in the hub; the vibration signals are forwarded to a data analysis unit disposed in the cabin by the hub measuring unit; the vibration signals of different blades in the wind turbine are compared to monitor whether the blades are damaged or not. After an embodiment of the monitoring method is adopted, the damage to blades in the wind power generation unit can be monitored in real time.

The invention discloses a structure test detection method based on a three-dimensional laser scanning technology. The structure test detection method comprises the specific steps of placing a test object, selecting and arranging the position and the number of three-dimensional laser scanner observation stations, setting the position and the number of three-dimensional laser scanning target balls,detecting the test object and processing a detection result. The three-dimensional laser scanning technology is applied to the structure test, and the whole process of the structure test is detected and monitored. According to the structure test detection method based on the three-dimensional laser scanning technology, the full-displacement field of the structure can be tested, the full-deformation field of the structure is obtained, and the cracking, failure and damage modes of the structure can be fed back in all directions and in the whole process. According to the structure test detectionmethod provided by the invention, scientific research personnel can be helped to comprehensively master various changes of the structure in the test process, and the accuracy of understanding, analyzing and mastering the mechanical property of the structure can be greatly improved.

The invention provides a grid displacement testing system and method based on a ten-shaft sensor. The grid displacement testing method comprises the steps that a ten-shaft sensor chip is embedded intoa geogrid; the ten-shaft sensor chip acquires data information of a monitoring point and uploads the data information to a monitoring cloud management platform; the monitoring cloud management platform obtains geogrid deformation amount and displacement change of the monitoring point through comprehensive analysis according to the acquired data information, conducts error correction processing onthe data information, reduces data error rate and improves data integrity rate; the monitoring cloud management platform synchronously updates the data information acquired by the ten-shaft sensor chip and analysis results to a monitoring database server; a remote monitoring center extracts data in the monitoring database server, obtains the width and extension trend of cracks produced by a wholestructure of the geogrid after further processing, monitors the overall damage trend of the geogrid in real time and finally achieves automatic monitoring of the overall state of the geogrid and early warning of geological disasters.

The present invention discloses a wind tunnel testing method based on temperature sensing fiber positioning detection mainly applied to the field of pipeline leak detection. Through establishing a testing device in a powdered media pipeline transportation process, the environment of a powdered media transportation pipeline and various possible damage states of the transportation pipeline, various characteristics after pipeline damage are measured from the outer wall of the transportation pipeline by using a temperature sensing fiber, the data characteristics after pipeline damage are summed and are used as the judgment basis of early warning in actual monitoring, thus the damage of a pipeline lining can be effectively monitored in real time, the early warning of accident risks is realized, and the method has a huge significance for industrial fire safety.

The invention discloses a plate shearing machine device and a plate shearing machine device monitoring system in the technical field of plate shearing machines. The plate shearing machine device comprises a shell assembly, a clamping assembly, a distance measuring assembly and a monitoring control assembly; the clamping assembly is arranged at the top of a storage platform, and connected with a lead screw transmission assembly; the distance measuring assembly is installed on the right side face of the shell assembly, and arranged at the upper end of the storage platform; one part of the monitoring control assembly is installed on the shell assembly, the other part of the monitoring control assembly is installed on the storage platform, and the monitoring control assembly is electrically connected with the lead screw transmission assembly. According to the plate shearing machine device and the plate shearing machine device monitoring system, the shearing size can be adjusted at will as required, use is convenient, the working efficiency is improved, sheared plates can be counted, sheared notches are subjected to high-definition camera shooting detection through a high-definition camera, the damage degree of a cutter is monitored, and the product quality is improved.

The invention discloses a cable body damage monitoring method and system for an inhaul cable type bridge provided with a main longitudinal beam. According to the method, finite element analysis software, bridge on-site modal monitoring, cable force monitoring and single cable body broken wire test are used; monitoring of inhaul cable type bridge damage conditions is achieved through bridge modal monitoring data, inhaul cable force monitoring data, single cable body broken wire test data and corresponding calculation and analysis theories and simulation methods. By means of the method, the wirebreakage amount of a single cable body can be accurately calculated, the inhaul cable damage condition of the inhaul cable type bridge with the longitudinal beam system can be monitored in real time,an alarm is given timely and accurately once the wire breakage amount exceeds an early warning value, the safety of the inhaul cable type bridge is improved, and potential safety hazards are eradicated.

The invention discloses an integrity monitoring method of a field power transmission iron tower. The method includes following steps: 1) a plurality of inclined monitoring points are set on the powertransmission iron tower, an inclination change of the power transmission iron tower is monitored, and data is transmitted to a unified signal relay if the inclination changes; and 2) the signal relaydetermines signals, and if the signals are continued for greater than 2s without interruption, the signal relay transmits the position of the power transmission iron tower to a monitoring center and monitoring personnel is promoted. According to the method, through monitoring of angular deviation of the power transmission iron tower, the structural deformation and damage can be monitored, and footing change of the power transmission iron tower can also be monitored. The iron tower inclines due to footing change, the inclination monitor can monitor the weak inclination, the monitoring personnelcan be monitored in time, prevention is performed in advance, and collapse accidents of the iron tower are avoided.

The invention relates to a JP cabinet, which comprises a cabinet body, and one or more of a power supply and distribution device, an electric power metering device, a protection relay protection device and a reactive power compensation device are arranged in the cabinet body; the outer wall of the cabinet body comprises an inner layer, a middle layer and an outer layer, and the middle layer is provided with a pressure sensor; the JP cabinet is also internally provided with a communication module, which is connected with the output end of the pressure sensor and is in communication connection with a monitoring center. According to the invention, the problem that the JP cabinet is damaged due to external force damage can be known under an unattended condition.

The invention relates to the technical field of surge protection devices, and in particular discloses a self-locking surge protection device, which includes a first insulator, a surge protector and a sensor installed on the first insulator; the first insulator is equipped with a plurality of The first power terminal and the multiple first signal terminals, the first insulator is provided with multiple concave holes and multiple card slots, and the first contact parts of the multiple first power terminals are respectively accommodated in the multiple concave holes; actual use , plug the surge protection device into the external docking connector, and then move the surge protection device so that the card of the docking connector snaps into the card slot, and then lock the surge protection device on the docking connector to realize Self-locking of the surge protection device; the first power terminal is used to supply power to the surge protector and the sensor, and the sensor is used to detect the on-off of the surge protector and transmit the detection signal through the first signal terminal, which is convenient for users to monitor Whether the surge protection device is damaged.

The invention discloses a multifunctional milk tea unmanned vending machine which comprises a framework structure with a rectangular outline, wherein the framework structure is composed of an upper milk tea machine framework and a lower milk tea machine framework. A front upper cover plate, a first transparent cover plate, a second transparent cover plate, a third transparent cover plate, a top cover plate, a rear upper cover plate, a rear lower cover plate, a left upper cover plate and a left lower cover plate which are used for sealing the inner space of the frame structure are arranged on the outer side of the frame structure, and a wastewater funnel is arranged at the joint of the milk tea machine upper framework and the milk tea machine lower framework; the bottom of the waste water funnel is connected with a waste water barrel, the waste water barrel falls on a plate-shaped structure at the lower end of the lower framework of the milk tea machine, a clear water storage barrel is fixed above the plate-shaped structure where the waste water barrel is located, two pairs of loudspeaker sound holes are formed in the upper end of the front upper cover plate, and a milk tea taking opening and a straw taking opening are formed in the front upper cover plate. The multifunctional milk tea unmanned vending machine can realize unmanned vending of milk tea, and is high in automation degree and suitable for being widely popularized and used.

Provided is a sliding member for an internal combustion engine including a self-test material for monitoring damage to the sliding member in a highly reliable and simple manner. In a sliding member for an internal combustion engine, which contains a self-checking material for monitoring damage to the sliding member, the sliding member has a single-layer or multi-layer structure made of a metal, alloy, and/or resin material, and the self-checking material is embedded in at least one of the layers constituting the sliding member. The self-test material is comprised of at least one material that reacts to external energy and exhibits signal characteristics.

The invention discloses a tangential displacement testing device for a building shock insulation rubber pipe, which comprises a rack, a vertical mounting seat and a horizontal mounting seat. A limiting sliding plate is fixedly arranged above the vertical mounting seat, a first hydraulic cylinder is fixedly arranged above the rack, and the free end of the first hydraulic cylinder passes through therack and is fixedly connected with the sliding plate; a sliding block is fixedly arranged below the horizontal mounting seat, the sliding block is in sliding connection with a horizontal sliding railbelow the rack, a second hydraulic cylinder is fixedly arranged on one side of the rack, and the free end of the second hydraulic cylinder penetrates through the rack and is fixedly connected with the horizontal mounting seat; mounting holes are arranged in the opposite surfaces of the vertical mounting seat and horizontal mounting seat, and the mounting holes are matched with an end socket of the building shock insulation rubber pipe to be tested. The structure achieves the independent loading in the horizontal direction and the vertical direction and also achieves the loading in the vertical direction and the horizontal direction simultaneously; so that the simulation of various use conditions is achieved, the accuracy of a test result is improved, and the performance monitoring of damage, fatigue and the like of a pipe is facilitated.