24 results about "Optical bus" patented technology

The invention provides a master-slave type optical bus based on a dual-channel optical module and a channel window distribution method thereof, the master-slave type optical bus comprises an optical coupler, two optical fiber beam splitters, two optical fiber beam combiners and a plurality of dual-channel optical modules, the receiving ends of the two optical fiber beam splitters are connected with the sending end of the optical coupler, and the receiving ends of the two optical fiber beam combiners are connected with the receiving end of the optical coupler. The transmitting ends of the two optical fiber beam combiners are connected with the receiving end of the optical coupler; the transmitting end of each dual-channel optical module is connected with the receiving end of the corresponding optical fiber beam combiner, the receiving end of each dual-channel optical module is connected with the transmitting end of the corresponding optical fiber beam splitter, each dual-channel optical module is connected with one device, and the devices exchange information through a master-slave optical bus. The bus only needs one optical fiber link, the topological relation is simple, the cable weight is small, the occupied space is small, connectors are unified, and the wiring process is simpler; and the optical fiber link adopts digital optical signal transmission, so that the transmission rate is higher, electromagnetic interference is avoided, and great significance is provided for the development of an optical bus.

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 invention provides a non-linear power distribution centerless U-shaped bus. The non-linear power distribution centerless U-shaped bus comprises a plurality of optical fiber beam combiners, a plurality of optical fiber beam splitters and a plurality of optical modules. The multiple optical fiber beam combiners are connected end to end in sequence, and the multiple optical fiber beam splitters are connected end to end in sequence. The optical fiber beam combiner at the tail end is connected with the optical fiber beam splitter at the head end to form a U-shaped optical link, the number of the optical fiber beam combiners is equal to that of the optical fiber beam splitters, a plurality of groups in one-to-one correspondence are formed, an optical module is arranged between each group of optical fiber beam splitters, the transmitting end of each optical module is connected with an incident branch of the corresponding optical fiber beam combiner, and the receiving end of each optical module is connected with an incident branch of the corresponding optical fiber beam combiner. The receiving end is connected with an emergent branch of the optical fiber beam splitter, each optical module is connected with one device, and the devices achieve information exchange through a U-shaped bus. According to the bus, high-speed information exchange among multiple devices can be achieved, the wiring topological relation is simple, the cable weight is small, the occupied space is small, connectors are unified, electromagnetic interference is avoided, and the bus has important significance on development of the optical bus.

The invention belongs to the technical field of identification and clamping of optical micro-lenses, and particularly provides a micro-lens data acquisition device adopting an optical bus for transmission and control and a micro-lens packaging method.The method comprises the steps that the micro-lens data acquisition device adopting the optical bus is adopted for acquiring an original image of a micro-lens; constructing a micro-lens data set based on the acquired original image data; constructing a multi-stage aggregation micro-lens detection network model, and detecting the pose of the micro-lens based on the multi-stage aggregation micro-lens detection network model; based on the pose detection result of the micro lens, a clamping structure is adopted to clamp the micro lens; the micro lens is clamped and conveyed to a designated position, and then closed-loop packaging is carried out on the micro lens. According to the invention, the efficient detection of the micro lens is realized by constructing the multi-stage aggregation network, and the posture recognition precision of + / -0.15 degrees is realized.

The embodiment of the utility model provides computing equipment. The computing equipment comprises a first component and a second component, the first assembly comprises a processing unit and a first optical fiber interface, and the processing unit is connected with the first optical fiber interface; the second assembly comprises a second optical fiber interface; the first assembly is connected with the second assembly through the first optical fiber interface, the optical fiber bus and the second optical fiber interface; the second component is used for communicating with external equipment to transmit communication data; and the first component is used for executing a computing task of the computing equipment according to the communication data through the processing unit. The computing device is high in flexibility.

The invention provides a time division multiplexing design method of a passive symmetric optical bus, which comprises the following steps of: A10, selecting a minimum time interval of information sent by a system as a period according to the absolute time of the system as a time axis, and dividing each period into a mark window and a data window; a20, the marking window is divided into n + 1 marking sub-windows according to the time sequence, the data window is divided into n data sub-windows according to the time sequence, and n is the number of the optical modules; a30, each device sends label information in the corresponding marking sub-window as required; and A40, each device sends data according to the data sub-window sending time formed by the label information. According to the invention, each device can distribute channels according to the time in an autonomous sorting manner, send data according to needs, and automatically release the channels after the data sending is finished, the interference is avoided, the channel resources are fully used, the method is applied to a complex system device formed by local interconnection of a plurality of devices, and high-speed information exchange among the plurality of devices can be realized.

The application belongs to the technical field of optical microlens recognition and clamping, and specifically provides a microlens data acquisition device adopting optical bus transmission control and a microlens packaging method, which comprises the following steps: collecting the original image of the microlens by using the microlens data acquisition device adopting optical bus, and constructing a microlens data set based on the collected original image data; constructing a multi-level aggregated microlens detection network model, and detecting the pose of the microlens based on the multi-level aggregated microlens detection network model; clamping the microlens based on the pose detection result of the microlens; clamping and conveying the microlens to a specified position, and then performing closed-loop packaging on the microlens. The application realizes efficient detection of the microlens by constructing a multi-level aggregated network, and realizes an attitude recognition accuracy of ±0.15°.

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.

The invention discloses an automatic measurement and control device for a deuterium-tritium fuel circulation system of a magnetic confinement fusion reactor and a control method, and belongs to the technical field of industrial control, the device comprises an OCS industrial optical bus control system and an SIS safety interlocking system which are dispatched by an intelligent production scheduling system, the OCS industrial optical bus control system and the SIS safety interlocking system are of three-level structures, and the OCS industrial optical bus control system and the SIS safety interlocking system are connected with the intelligent production scheduling system. Comprising a field level, a control level and a monitoring level. The control level of the OCS industrial optical bus control system is connected with the field level through an optical bus, and software definition of signal types is realized by adopting a general I / O module; the SIS safety interlocking system operates independently based on the SIL3 safety integrity level. The OCS industrial optical bus control system is adopted to replace a traditional DCS / PLC architecture, and the problems of electromagnetic interference, poor system collaboration and the like are solved through the optical bus and the universal I / O module; the safety and the redundancy capability are improved through an independent SIS safety interlocking system; meanwhile, intelligent production scheduling control is integrated, and the production efficiency is remarkably improved.

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.

The invention belongs to the technical field of expansion of a high-speed data bus of a high-performance OpenVPX signal processor, and discloses a method for expanding a bus of a signal processor. The system comprises a backboard, a function module, a power supply module, an OpenVPX bus, a case, a fan unit and a 100Gbps optical fiber bus, by adding the 100Gbps optical fiber bus for transmission from the front board, the problems of technology, cost and reliability caused by a 25Gbps high-speed electric signal transmission link are avoided, the performance of processors such as a CPU, a DSP and a GPU can be fully played, a high-performance signal processor is quickly put into engineering application, and the system has a wide application prospect. The problem that the weapon equipment technology falls behind due to the fact that the weapon equipment development period lags behind the industrial electronic system period too much is solved.

The invention provides an industrial optical bus control system and method used in a petrochemical refining scene, and relates to the technical field of chemical plant industrial control, and the system comprises a field device, a plurality of intelligent data transmission modules, a redundancy control module and an operation module which are sequentially connected through mutually redundant optical buses. Each intelligent data transmission module is provided with a plurality of I / O modules in an integrated manner and is used for acquiring field signals of the field equipment; the redundancy control module is used for performing logical operation on the field signal to obtain an operation result; and the operation module is used for issuing a control instruction to the field device through the redundancy control module according to the operation result. Therefore, a marshalling link in the distributed control system is eliminated, and the number of the cabinets among the cabinets is reduced, so that the requirement on the building area of the cabinet chamber is reduced, the building cost of the cabinet chamber is reduced, and the signal transmission cost is reduced. And meanwhile, the usage amount of copper core cables is reduced, and the space is saved.

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.

The invention relates to the technical field of vehicle communication, in particular to a topological structure of a vehicle-mounted passive optical network and a flexible networking method of the topological structure. According to the invention, a vehicle-mounted passive optical network architecture based on central calculation and regional control is adopted, and after the protocol information of a non-optical bus and the protocol information of an optical network unit are transferred or converted through the right front vehicle body domain controller, the right rear vehicle body domain controller, the left front vehicle body domain controller and the left rear vehicle body domain controller, all the information is sorted and sent to the central processing integrated module; a central information calculation processing function is carried out through the central processing integration module, a cooperative function among the right front vehicle body domain controller, the right rear vehicle body domain controller, the left front vehicle body domain controller and the left rear vehicle body domain controller is realized, an optical backbone network supporting multiple protocols is realized, and the high bandwidth characteristic of a vehicle-mounted optical fiber backbone network becomes possible.

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 invention discloses a multichannel pod and hanger interface detection method and system, and belongs to the field of airborne pod and hanger interface detection, and the method comprises the following steps: the system is connected with a main connector, an auxiliary connector and a radio frequency connector of each hanging point of an airplane through a test cable; carrying out system self-inspection; a pod flag bit is configured through software, and configurations and types of pods of different models are simulated; setting a left cabin and a right cabin, and sending an initialization request to an airplane through an optical fiber bus; detecting 28V and 270V direct-current power supplies on the aircraft pylon, conditioning power supply signals to be within the acquisition range of the analog quantity acquisition board card, and completing power supply quality detection; internal test resources are controlled according to the pod type, communication with an airborne electronic countermeasure task system is carried out, and a simulation test of a transmitting-receiving time sequence and radiation power is completed; and collecting and analyzing FC bus information, discrete magnitude information and RS485 bus information of the hanger interface. The system testing efficiency can be effectively improved, and the equipment cost can be effectively reduced.

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.