2221 results about "Transmission equipment" patented technology

A quantum key delivery system in which a first transmission device phase modulates a first polarization component of two orthogonal polarization components in transmitted light and modulates a second polarization component, which is the other polarization component, into a signal indicating the second random number sequence, based on a first random number sequence indicating the bit sequence to be transmitted and the second random number sequence indicating the base in the phase modulation of the bit sequence to be transmitted; and a second transmission device separates orthogonal polarization modes in the received light and extracts a clock timing from the signal indicating the second random number sequence.

The invention discloses a power equipment fault prediction method based on multi-modal data and related equipment, and belongs to the technical field of intelligent monitoring and fault prediction of power equipment, and the method comprises the steps: collecting and preprocessing the multi-modal operation data of the power equipment; extracting features of the preprocessed multi-modal operation data and performing global feature fusion to obtain multi-modal features; inputting the multi-modal features into a pre-trained fault prediction model to obtain a fault category and an occurrence probability of the power equipment; the fault prediction model is obtained by inputting the multi-modal features into a hybrid neural network for training. Multi-modal operation data of power equipment is collected, key features are extracted by using a deep learning model, multi-modal data fusion is performed, and a fault prediction model is constructed based on a hybrid neural network. Real-time fault early warning and maintenance suggestions are provided, the operation reliability of power equipment is improved, the unplanned shutdown risk is reduced, and the method is suitable for health management of transformer substations, high-voltage power transmission equipment and wind generating sets.

A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream including the point cloud data. A point cloud data reception method according to embodiments may comprise the steps of: receiving the bitstream including the point cloud data; and decoding the point cloud data.

Disclosed is an assembly for a turbomachine comprising: ⋅—a second connection element (8) having a third end (81) which is connected to a turbine shaft (2) and is mounted on a second bearing (5), and a fourth end (82) connected to a mechanical transmission device (6), the second connection element (8) having a second radial compliance (SR2); and ⋅—a third connection element (9) having a fifth end (91) fixedly mounted on a casing (1), and a sixth end (92) connected to the mechanical transmission device (6), the third connection element (9) having a third radial compliance (SR3), wherein a ratio of the first radial compliance (SR1) to the third radial compliance (SR3) is strictly lower than 10% and / or a ratio of the first radial compliance (SR1) to the second radial compliance (SR2) is strictly lower than 4%.

The invention relates to the technical field of digital twinning, in particular to a hub type transmission device composite material performance prediction method based on digital twinning, which comprises the following steps: acquiring geometric information of a hub type transmission device, constructing a digital twinning analysis model, acquiring working condition information, dynamic balance parameters and corresponding response characteristics of the hub type transmission device in real time by using various sensors, and calculating the performance of the hub type transmission device. And establishing association mapping of geometric morphology, material characteristics and mechanical parameters, and generating a model parameter set. According to the method, through dynamic correlation mapping of geometric information, material characteristics and mechanical parameters and in combination with real-time working condition data, accurate simulation of the running state of the hub device is achieved, the precision of material wear trend prediction is optimized, the accuracy of crack propagation trend analysis is improved, and the fatigue damage rate is analyzed through the crack stress gradient and the fatigue damage rate. The reliability of material life prediction is remarkably enhanced, the material performance degradation level under the influence of multiple factors is quantified, and the accuracy of service performance evaluation of the hub type transmission device composite material is improved.

A wireless power transmission apparatus for induction heating includes: a working coil configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to calculate an eccentricity degree between the working coil and a reception coil of a target object, and control, in the wireless power transmission mode, the operation frequency based on the calculated eccentricity degree while performing wireless power transmission to the target object.

The embodiment of the invention provides a wafer box transmission device of a vertical furnace, the wafer box transmission device is close to the vertical furnace, receives a wafer box transmitted by a crown block and transmits the wafer box to a target position in the vertical furnace, the wafer box transmission device comprises a bearing platform, a telescopic arm and a wafer box detection mechanism, when the wafer box is placed on the bearing platform, the telescopic arm detects the wafer box on the bearing platform; after the wafer box detection mechanism detects that no wafer box is placed at the target position, the bearing table is controlled to contract to make up the working space of the telescopic arm, and the lifting mechanism drives the telescopic arm to ascend, so that a clamping mechanism of the telescopic arm clamps the wafer box and then lifts the wafer box from the bearing table, and the wafer box is conveyed into the vertical furnace in the stretching direction through stretching of the telescopic arm; and placing on a target position. Through the telescopic design of the telescopic arm, the occupied area can be reduced, the safety is improved through the sensor and the like, the device can be suitable for different types of wafer cassettes, the transmission efficiency is improved, and the adaptability is high.

A wireless communication apparatus and method using probabilistic constellation shaping in connection with modulation. A wireless transmission device may determine a sequence of amplitude symbols from a sequence of information bits using a distribution matcher (DM) configured for probabilistic amplitude shaping. The device may further apply error correction coding to encode an information block corresponding to at least a portion of the sequence of amplitude symbols. And the device may generate a sequence of output symbols for transmission based on the encoded information block. The device may apply interleaving to one or more of the sequence of amplitude symbols, the information block, the encoded information block, or a combination of the sequence of amplitude symbols and the encoded information block, for the generating of the sequence of output symbols.

Methods and apparatuses for drying and charging electronic devices are disclosed. An exemplary method comprises: generating a first air flow, using a first pressure-generating device, through a first air path connecting a drying chamber, the first pressure-generating device, a first heat sink, and a moisture-collecting device; activating a thermoelectric system thermally connected to a thermal transfer device, wherein the thermoelectric system has a first polarity; generating a second air flow, using a second pressure-generating device, through a second air path connecting the second pressure-generating device and a second heat sink; generating an electrical current, by engaging the portable electronic device and a power source; generating a third air flow, using the first pressure-generating device, through the first air path; activating the thermoelectric system, wherein the thermoelectric system has a second polarity; and generating a fourth air flow, using the second pressure-generating device, through the second air path.

A point cloud data transmission method according embodiments comprises a step for encoding point cloud data including the geometry and attributes, the geometry being information indicating the positions of the points of the point cloud data, and the attributes including one or more among the color and reflectance of the points, wherein the encoding step comprises: a step for converting the coordinates representing the positions of the points; and a step for transmitting a bitstream including the encoded point cloud data. The point cloud data transmission method can encode and transmit the point cloud data.

The invention provides an intelligent suspension conveying device, one support is provided with a lubricating assembly used for automatically spraying lubricating oil to conveying equipment, the lubricating assembly is provided with an anti-dripping assembly used for automatic wiping after the lubricating oil is sprayed, and the intelligent suspension conveying device relates to the technical field of intelligent suspension equipment. According to the intelligent suspension conveying equipment, the lubricating assembly is arranged below the intelligent suspension conveying equipment, the function of regularly and automatically spraying lubricating oil to transmission equipment of the intelligent suspension conveying equipment is achieved, and the convenience and efficiency of equipment lubricating are improved. After spraying, redundant lubricating oil can fall into the oil receiving box to be effectively collected, random dripping of the lubricating oil is avoided, and therefore the working environment is kept clean and tidy. In the spraying process, the transmission equipment does not stop and continuously rotates, in the rotating process, the anti-dripping assembly can wipe redundant lubricating oil on the transmission equipment, the risk that residual oil on the transmission equipment drips to the ground is thoroughly eliminated, and the cleanliness and safety of the equipment are further improved.

The invention discloses a predictive maintenance algorithm for transmission equipment, and relates to the technical field of maintenance of the transmission equipment, in particular to a roller conveying system applied to flexible materials, which is characterized by comprising the following steps: S1, arranging position triggers at key transition nodes of a roller conveyor for acquiring timestamps of the materials passing through detection points in real time, generating a unique number and a corresponding time sequence relationship for each material; and S2, standard material passing time is calculated based on the theoretical beat period, the difference between the actual time and the standard period is calculated, and a beat offset set is constructed to reflect the conveying beat deviation of the materials between the adjacent detection points. According to the method, early warning and intelligent regulation and control of flexible material conveying rhythm imbalance are achieved through rhythm offset modeling, abnormal aggregation recognition and root cause diagnosis, compression bandwidth and driving time delay are dynamically adjusted when the imbalance risk occurs, the accumulation risk is effectively relieved, and the system stability, the automation level and the operation efficiency are improved.

A switching control apparatus calculates a traffic amount in a predetermined period of each first transmission apparatus that is a transmission apparatus of a predetermined layer on the basis of allocation of radio resources to a terminal that wirelessly transmits a signal to a lowermost transmission apparatus among a plurality of transfer apparatuses that constitute a communication network hierarchized into a plurality of layers and transfer a received signal to a layer next above. The switching control apparatus calculates a processing capability predicted to be required for each second transmission apparatus which is a transmission apparatus of a layer next above the first transmission apparatus on the basis of the traffic amount of the first transmission apparatus. The switching control apparatus instructs a transfer apparatus for transferring a signal transmitted from the first transmission apparatus to the second transmission apparatus to switch a connection destination of the first transmission apparatus under the control of the second transmission apparatus in which congestion is determined to occur on the basis of the processing capability.

A drive unit for a steer-by-wire system for a vehicle having a motor for providing a drive power to a control rod of the wheel actuator. A sensor device determines the position of the control rod, wherein the sensor device has a first sensor unit and at least one second sensor unit. The first sensor unit is designed to detect an angle of a rotor shaft of the motor, and the second sensor unit is designed to detect an angle of an auxiliary shaft which is mechanically operatively connected to the rotor shaft. A transmission device provides the mechanical operative connection between the rotor shaft and the auxiliary shaft. A controller actuates the sensor device and / or determines the position of the control rod of the wheel actuator. The first sensor unit and second sensor unit use different measuring principles.