13 results about "Optical bus" patented technology

The invention discloses a cable branch box operation state monitoring system, which comprises a distributed sensing network, a heterogeneous fusion center, a cognitive decision engine and a self-adaptive execution terminal, and is characterized in that the distributed sensing network is deployed in the whole domain of a branch box in a matrix manner, and is configured with a multi-physical field sensing array, a passive self-powered node and a flexible sensing patch; data such as electrical parameters, environmental characteristics and structural micro-change are synchronously collected, a biological heuristic self-repairing mechanism and a self-adaptive sampling strategy are provided, monitoring blind areas can be avoided, sensing continuity is guaranteed, energy consumption is reduced, the heterogeneous fusion center is interconnected with a sensing network through an optical fiber bus, and modules such as a dynamic data cleaning engine are arranged in the heterogeneous fusion center. A standardized state matrix is constructed for multi-source data space-time alignment, feature fusion, interference data elimination and equipment aging recessive index extraction to adapt to different working conditions.

A data-center communication system can include a first circuit board comprising an optical transmitter operable to emit light and a second circuit board comprising an optical receiver operable to receive the light. The first circuit board and the second circuit board can be disposed in a fixed spatial relationship with a rack. The light can be modulated optical signals. The first and second circuit boards can each include both optical transmitter and an optical receiver to enable bidirectional communication. Optical transmitters and optical receivers can enable point-to-point optical communications between circuit boards in a rack or can enable an optical bus shared by circuit boards in a rack.

This application belongs to the field of radar digital processor testing technology, specifically relating to a radar digital processor testing system, including a computer and a differential VAG converter, wherein the differential VAG converter is connected to a digital radar processor; the computer integrates: an interface driver module; a video acquisition board with a Mini PCIe interface, connected to the interface driver module and the differential VAG converter; a fiber optic bus board, a 1553B bus board, an ARINC429 bus board, a multi-protocol serial bus board, and a discrete signal board with a Mini PCIe interface, all connected to the interface driver module and the digital radar processor; a video acquisition module connected to the interface driver module; an interface communication module, an interface data processing module, and an internal bus testing module connected to the interface channel module; and a comprehensive display and control simulation module connected to the interface data processing module and the video acquisition module.

The embodiment of the application provides a bridge monitoring system, and belongs to the technical field of bridge monitoring. The bridge monitoring system comprises: N fiber grating strain sensors and M fiber grating temperature sensors arranged at different positions of a bridge, the arrangement position of each fiber grating strain sensor serving as a test point; a fiber host used for demodulating detection signals collected by the N fiber grating strain sensors and the M fiber grating temperature sensors to obtain mechanical strain values ε i and environmental temperature values T j of each test point, i=1, 2, …N, j=1, 2, …M; a fiber distribution box used for distributing a fiber bus connected with the fiber host into branch lines connected with sensors at different positions, each branch line being connected with a fiber grating strain sensor or a fiber grating temperature sensor; and a power module used for supplying power to the fiber host. The bridge monitoring system has high anti-interference capability, high monitoring precision and standardized wiring.

The invention provides a comprehensive aircraft suspension object high-speed network interface test system and method, and belongs to the field of high-speed network interface test.The comprehensive aircraft suspension object high-speed network interface test system comprises a test host and a plurality of optical fiber bus board cards, and the optical fiber bus board cards are connected with the test host through PXIE interfaces; the plurality of optical fiber bus board cards comprise a first optical fiber bus board card, a second optical fiber bus board card and a third optical fiber bus board card which communicate with one another, the test host comprises an optical fiber test module, an optical fiber analysis module, an analogue simulation module and a display unit, and the optical fiber test module is in communication connection with the first optical fiber bus board card. The optical fiber analysis module is in communication connection with the second optical fiber bus board card, and the analogue simulation module is in communication connection with the third optical fiber bus board card. The high-speed network interface test system provided by the invention can realize the functions of simulating an optical fiber switch, a network controller and a network terminal, providing various ports, performing communication test and the like in the high-speed network interface test work of the aircraft suspension.

This application relates to the field of optical communication technology, and discloses an optical bus device, optical communication equipment, and communication system. The optical bus device includes a cavity and at least two optical openings. Each optical opening is disposed on the cavity and has a semi-transparent, semi-reflective mirror. An optical signal entering the cavity from any one of the optical openings is reflected by the inner wall of the cavity and reaches the other optical openings. A portion of the optical signal is transmitted through the semi-transparent, semi-reflective mirrors at the other optical openings, and other signals besides the transmitted portion are reflected, thus distributing the optical signal to each of the other optical openings. This application enables multi-point transmission and distribution of free-space optical signals through a simple structural design, and is applicable to various extreme industrial environments such as strong electromagnetic fields, high voltage, and flammable and explosive environments.

A communication method and apparatus, and an optical bus network. A controller sends, in response to discovering a target optical head end, a target optical head end identifier to the target optical head end, where the target optical head end identifier identifies the target optical head end. The controller determines a target management protocol from management protocols supported by the target optical head end. The controller communicates target information with the target optical head end based on the target optical head end identifier and the target management protocol, where the target information is used by the controller to manage the target optical head end and / or at least one optical terminal managed by the target optical head end.

A splitting apparatus provides M groups of ports and includes M splitting elements. Each splitting element includes at least one feeder end and N branch ends, where M=N+1. Each branch end of each splitting element is coupled to one branch end of another splitting element in the M splitting elements, where different branch ends of each splitting element are coupled to one branch end of different splitting elements. A feeder end of each splitting element is coupled to one group of ports in the M groups of ports of the splitting apparatus, and feeder ends of different splitting elements are coupled to different groups of ports. The splitting apparatus may implement an optical bus structure with peer-to-peer topologies.

An information handling system may include an optical bus system for managing nodes. The optical bus system may include a plastic optical fiber configured to transmit light signals between the nodes. The plastic optical fiber includes a plurality of molded notches positioned at predetermined intervals along a length of the plastic optical fiber. Each of the plurality of molded notches is configured to allow light ingress into and light egress from the plastic optical fiber for multi-node communication.

The present application belongs to the technical field of precision CNC machine tools, and particularly relates to a five-axis linkage gantry machining center thermal dynamic error adaptive compensation system and method. The present application uses a fiber bus communication network to achieve microsecond-level data synchronization, ensuring the time consistency of multiple sensors and adapting to the motion coupling requirements of five-axis linkage. The distributed FBG three-dimensional temperature field is used to monitor and capture the global temperature field distribution of the machine tool, avoiding the defects of one-sided sensor layout and poor anti-interference. The error prediction model of the present application comprehensively considers temperature, load and vibration multi-physical fields for error prediction, significantly improving the robustness of error prediction under complex working conditions, adapting to the thermal characteristic drift of long-time continuous machining, and simultaneously integrating a laser tracker to realize online real-time calibration of the geometric accuracy of the machine tool, providing real-time geometric reference for the error prediction model, and solving the problem of traditional calibration lagging behind the thermal characteristic changes of the machine tool.

The invention discloses an optical bus extinction ratio real-time optimization system and method based on deep learning. The method comprises the steps of 1, making a data set required by deep learning model training; 2, constructing a target key point detection dual-channel LSTM model based on deep learning, and training the target key point detection dual-channel LSTM model; and step 3, carrying out model testing on the trained dual-channel LSTM model. According to the invention, the problem of extinction ratio instability caused by temperature drift and device aging is solved.

Embodiments of this application disclose an optical bus communication method, including: A first terminal obtains first control information from a controller, where the first control information is generated by the controller and is used to control an execution mechanism to work. The first terminal sends the first control information to a central office over a first section, so that the central office forwards the first control information to a second terminal, where the second terminal is connected to the execution mechanism. The first terminal obtains first state information from the central office, where the first state information is used to record a working state of the execution mechanism, the first state information is information sent by the second terminal to the central office over a second section after the second terminal obtains the first control information, and the first section does not overlap with the second section.