30results about How to "Monitor Vibration" patented technology

The invention discloses a vibration monitoring method for a train compartment, a method for establishing and applying a vibration signal feature library, and adopts a non-invasive vibration monitoring method for a train compartment. During actual monitoring, only the vibration signals of the total measuring points in the train compartment need to be obtained, avoiding Redundant sensors, cost saving, conducive to train light weight, accurately and truly reflect the relationship between the position of the vibration source, phase offset, and amplitude attenuation, can monitor the vibration of unknown vibration sources, and can identify abnormal vibrations of the vibration source , so as to provide a basis for abnormal vibration processing; the vibration source signal can be reconstructed on the basis of only measuring the vibration signal of the total measuring point, so as to realize the real-time update of its multi-element vibration signal feature library, and the multi-element vibration signal feature library can be a vibration signal Optimized decomposition, vibration signal image identification, abnormal vibration signal identification, etc. provide data basis.

The invention discloses a method and a system for diagnosing abnormal vibration of an intelligent spindle. A vibration pickup ring and a fixing ring are sleeved on the spindle, cantilevers are respectively arranged on the front, rear, left and right of the vibration pickup ring, and an optical path corresponding to the cantilever is arranged on the fixing ring. , a laser and a photodetector are respectively set at the entrance and exit of the optical path, and a fracture for the cantilever to be inserted is set on the optical path. The vibration pick-up ring can pick up the vibration of the main shaft in the horizontal and vertical directions in the radial plane. When the vibration of the main shaft is accompanied by the vibration of the main shaft, the vibration pick-up ring will drive the cantilever to move in the fracture, interfere with the transmission of light in the optical path, and change the photoelectric detection. light intensity received by the receiver. In this way, the light intensity received by the photodetector can be collected and the light intensity change can be calculated, the mapping relationship between the light intensity change and the vibration displacement can be obtained by calibration and least squares fitting, and then the main axis in the radial plane can be obtained according to the mapping relationship. According to the vibration situation obtained, the abnormal vibration of the main shaft can be diagnosed.

The invention discloses a novel Pelteobagrus fulvidraco transportation method based on intelligent control. According to the invention, Pelteobagrus fulvidraco is narcotized with anesthetics and placed into a live fish box; the interior of the box body of the live fish box comprises a water body and a boat body floating on the surface of the water body; the interior of the boat body is provided with a core control member which is connected with dissolved oxygen, pH and temperature sensors arranged in the interior of the water body and with vibration, noise and air-quality sensors which are arranged at the exterior of the water body and used for capturing environmental information of the interior of the live fish box in real time; the interior of the water body is also provided with a temperature control device; the boat body is provided with a negative-ion air purifying device; in addition, a terminal device is arranged and used for receiving and processing signals of sensors and controlling the boat body to move; thus, accurate control and adjustment of the quality of water in the transportation process of the Pelteobagrus fulvidraco is realized through evaluation of the transportation water quality of the Pelteobagrus fulvidraco by artificial neural network modeling. The method provided by the invention is unique and practical, realizes reliable and comprehensive informationacquisition, thereby guaranteeing the long-distance transportation safety of the Pelteobagrus fulvidraco.

The invention relates to a device for testing unfolding of missile wings under a multi-angle high-speed rotation condition of a missile body, in particular to research on the rotating characteristic of the missile body under different angles, and belongs to the field of experimental research design of a high-speed rotating platform. The device comprises a probe, a transmission rod, a pre-tightening spring, a straight sliding type potentiometer, a voltage acquirer, a fixed-value resistance, a power source, a shell, a shell cover and a limiting bolt. The angle and the rotating speed of the missile body in a flying state are simulated through the rotating table, and the device, for testing unfolding of the missile wings, installed in the rotating table represents whether the missile wings are completely unfolded and locked by conducting, amplifying and detecting the displacement of a fixing pin. The two ends of the missile body are fixed to be connected with a support through the rotating table, and it is guaranteed that the missile body can stably rotate under a high rotating speed. The straight sliding type potentiometer is adopted for the testing device, a displacement signal of the pin is linearly converted into an electric signal, and the testing result can better perform representation and display.

The invention relates to a vibration alarming system for a full-automatic washing machine. The vibration alarming system comprises a safety rod assembly and a micro switch assembly positioned on one side of the safety rod assembly, wherein the safety rod assembly comprises a safety rod, a safety rod base, a first seal ring and a second seal ring. The first seal ring and the second seal ring are positioned in the middle of the safety rod base, and a reset spring is fixedly arranged between the first seal ring and the second seal ring. A roller is arranged at one end of the safety rod, the other end of the safety rod sequentially penetrates through the centers of the first seal ring and the second seal ring, and the two ends of the safety rod are connected with the inner wall of the safety rod base respectively through the first seal ring and the second seal ring. One end with the roller, of the safety rod is close to a case body, and the other end of the safety rod is close to the micro switch assembly. By means of the vibration alarming system, the situation that vibration exceeds a limit value in the dehydration process of the washing machine can be effectively prevented, and smooth dehydration operation of the washing machine can be ensured.

The invention relates to a rotating platform for testing the unfolding of a missile wing under a multi-angle high-speed rotating condition of a missile body, and belongs to the field of high-speed rotating platform experimental research designs. According to the rotating platform, the angle of a work piece is regulated by adopting a motor screw rod transmission mechanism; a motor shaft and a work piece rotating shaft adopt an integrated shafting design; the defect of rotating speed loss during a commonly used belt transmission process is eliminated; a transmission structure is simplified; the stability is improved; the overall structural integration is realized. The missile body is fixed at the two ends and is connected through a bracket, so that the missile body can be ensured to rotate at a high speed. In addition, the rotating speed can also be used for researching the high-speed rotating characteristics of the missile bodies with different sizes through simple transformation. A missile wing unfolding testing device is arranged on a rotating bracket; the unfolding and locking conditions of the missile wing can be represented through the movement of a fixed pin. To sum up, the rotating platform provides a safe and reliable research platform for researching the high-speed rotating characteristics of the missile body at different angles and testing the unfolding and locking of the missile wing, so that the rotating platform has a very good use value.

The invention discloses a safety anti-collision system under the working state of a mechanical arm. Induction layer, first flexible protection layer, electrostatic induction layer and second flexible protection layer, wherein, the rigid protection layer is used for bonding with the surface of the robotic arm, the electrostatic induction layer has a conductor layer, and a low-voltage alternating current electric field can be formed in the conductor layer ; The second anti-collision system includes a safety protection bracelet that can sense position information and issue an alarm signal. The invention adopts a comprehensive way of multiple safety protection systems, has high detection precision and fast response speed.

The invention is applicable to the field of the passive and wireless technology, and provides a passive wireless sensing device, which comprises a reed switch, a microcontroller, an energy management control unit, a wireless transceiver, a photovoltaic energy collector and an energy storage unit. The energy storage unit is connected with the energy management control unit, and the photovoltaic energy collector is also connected with the energy management control unit. The device also comprises a vibration / displacement / inclination sensor which is connected with the microcontroller and is used for monitoring whether glass is broken, whether building equipment vibrates and whether the sensing device is moved. The wireless transceiver is used for receiving and transmitting signals sent by thevibration / displacement / inclination sensor through the microcontroller. The invention can be used for monitoring the breakage of the glass, the vibration of the building equipment such as doors, window and the like and the movement of the sensing device, and the functions of the invention are broadened.

The invention belongs to the technical field of civil engineering, and discloses a civil engineering shock absorbing device and a control method thereof. The civil engineering shock absorbing device includes: a signal acquisition module, a communication module, a central control module, a data analysis module, and a shock absorbing control module , a comprehensive evaluation module, an abnormal early warning module, a power supply module, a data storage module, and a display module. The shock absorbing device for civil engineering provided by the present invention has a simple structure, does not need to add rigidity to the main building structure, effectively solves the problem that the initial stiffness of the damper is difficult to match the lateral stiffness of the structure, and reduces the number of shear walls, beams, and columns The number of reinforcements and the cross-sectional size of the components can effectively save costs, and the invention is not only suitable for the seismic and windproof of new civil structures, but also has a good effect on the seismic reinforcement and post-earthquake maintenance of existing buildings after the earthquake, and it is automated The degree is high, the workload of personnel is reduced, and the application can be promoted.