104results about "Bus-type electromagnetic networks" patented technology

The present application discloses an optical module access method, apparatus and system, an electronic device, and a nonvolatile readable storage medium, which are applied to the technical field of computers. The system comprises a central processing unit and an interface function extension structure comprising a plurality of programmable logic controllers, wherein the central processing unit is connected to a port of each programmable logic controller by means of a target bus. The central processing unit delivers an optical module access request to the interface function extension structure by means of the target bus. Each programmable logic controller is separately connected to a plurality of optical modules by means of a plurality of inter-integrated circuit buses, accesses a target optical module on the basis of an optical module address carried by the optical module access request, and performs information feedback to the central processing unit by means of interrupt multiplexing. The present application can solve the problem in the prior art of low efficiency of accessing the optical modules by means of the central processing unit, and realizes low-cost and efficient access to the optical modules.

The invention provides a whole bus-based agile satellite platform and a construction method thereof. The whole bus-based agile satellite platform comprises a bus, an integrated electronic computer, a power supply controller, a data server and subsystems, the bus comprises a satellite control bus, a satellite power bus and a high-speed information bus; a comprehensive electronic computer serves as a control center management satellite control bus, a power supply controller serves as an energy control center management satellite power bus, and a data server serves as a data interaction center management high-speed information bus. Each subsystem of the satellite platform carries out interaction between a remote control instruction and telemetering data through a control bus, carries out energy supply and instruction pulse output through a power bus, and carries out mass data distribution and interaction through a high-speed information bus. According to the invention, a satellite platform realizes satellite interface generalization and standardization by using a full-bus design, platform single-machine rapid integration and whole-satellite efficient test are supported, the supported load type can be flexibly configured, and the method has agility and engineering value.

A communication method and system between a test board and an optical module based on an I3C protocol relates to the technical field of communication, and comprises the following steps: the test board receives an instruction sent by an upper computer; configuring a DMA channel of the test board, and configuring an I3C bus; if the instruction is a write instruction, the test board selects to adjust an FIFO threshold value based on the sending end FIFO according to the data size of the instruction, and then sends a write-in command to the optical module through the I3C bus; if the optical module receives the write-in command, the optical module works according to the command; if the instruction is a read instruction, the test board selects the FIFO based on the receiving end, and after the FIFO threshold value is adjusted according to the data size of the instruction, a read command is sent to the optical module through the I3C bus; if the optical module receives a reading command, returning data to the test board according to the command; if the optical module receives a write-in command or a read command or does not receive or output correct data, the test board executes an error processing operation; the method is used for solving the problems that the optical module testing efficiency is low, and the stability of an I3C protocol in the optical module testing is poor.

The invention provides a photoelectric automobile integrated sensing system and method, and relates to the technical field of optical fiber communication, and the system comprises a light source, a processor, an isolator, a coupler, a vehicle domain, a spectrometer, an optical signal splitter, a vehicle domain controller, a first photoelectric converter, a second photoelectric converter, and a vehicle domain actuator. The vehicle domain is connected with a vehicle domain actuator through a coupler, an isolator, a light source, a processor, an optical signal splitter / combiner, a vehicle domain controller, a first photoelectric converter and a second photoelectric converter in sequence; the processor is connected with the light source and is used for carrying out frequency division on the laser emitted by the light source to obtain a communication band signal for communication and a sensing band signal for sensing; and the spectrometer is respectively connected with the coupler and the processor. The light source, the processor, the isolator, the coupler and other components in the system are utilized, and the problems of bandwidth, electromagnetic interference and signal attenuation in traditional electric signal transmission are solved.

A filtering unit for an optical communication system includes an optical band-pass filter that narrows pulses of modulated light emitted by an array of light sources in the communication system. The filtering unit can be included in an optical transmitter that includes the array of light sources, and a controller that receives data from a transmitting computer system and encodes and transmits it by modulating the visible light output by the array of light sources. The filtering unit can also be included in an optical receiver unit that includes a photodetector array to receive the modulated visible light; and a controller to receive the output of the photodetectors; decode data from the received output, and provide the decoded data to a receiving computer system.

A communication system includes an aggregate station configured to transmit and receive a signal and N extension stations (N is an integer of 2 or more). The N extension stations include a first extension station configured to receive a signal from the aggregate station and transmit a signal to a second extension station, an ith extension station (i is an integer satisfying 2 ≤ i ≤ N-1) configured to receive a signal from an (i-1)th extension station and transmit a signal to an (i+1)th extension station, and an Nth extension station configured to receive a signal from an (N-1)th extension station. A ratio between a magnitude of a signal to be received by an ith extension station (1 ≤ i ≤ N-1) and a magnitude of a signal to be transmitted thereby is (N-i+1):(N-i).

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 present disclosure relates to an optical switching network having optical switches that controllably reroute light between bus optical waveguides. An optical switch includes a shunt optical waveguide disposed vertically in a gap between a first bus optical waveguide formed in a first waveguide layer and a second bus optical waveguide formed in a second waveguide layer and configured to movably optically couple the first and second bus optical waveguides when activated. The first waveguide layer and the optical switch are formed on a first substrate and the second waveguide layer is formed on a second substrate bonded to the first substrate or mechanically supported by a plurality of anchors extending between the first and second substrates. The optical switch network includes a sensor for identifying a failed optical switch and a recovery optical waveguide and optical switch providing a recovery optical path to bypass the failed optical switch.

The invention provides an optical fiber access device, and relates to the technical field of communication, the optical fiber access device comprises a programmable logic device, an RS485 interface chip and an SFP optical module, the RS485 interface chip is connected with the SFP optical module through the programmable logic device, the RS485 interface chip is used for sending first sampling data to the programmable logic device, and the programmable logic device is connected with the RS485 interface chip; the programmable logic device is used for converting the private frame structure into a PECL level and sending the PECL level to the SFP optical module, and the SFP optical module is used for converting the PECL level into an optical signal to be transmitted on an optical fiber; the first sampling data is TTL (Transistor-Transistor Logic) level converted by the RS485 interface chip based on an RS485 interface level, and the private frame structure is a private communication frame structure constructed by the programmable logic device based on the first sampling data, the second sampling data and the third sampling data. By using the optical fiber communication technology, the limitation of the connection distance of the traditional RS485 cable is successfully broken through, and the transparent transmission distance of the RS485 communication interface can be increased.

The present disclosure is directed to optical switch networks having optical switches that controllably reroute light between bus optical waveguides. An optical switch comprises a shunt optical waveguide disposed in a gap vertically between the first bus optical waveguide formed in a first waveguide layer and a second bus optical waveguide formed in a second waveguide layer and configured to moveably optically couple the first and second bus optical waveguides upon activation. The first waveguide layer and the optical switch are formed on a first substrate and the second waveguide layer is formed on a second substrate bonded to the first substrate, or mechanically supported by a plurality of anchors extending between the first and second substrates. The optical switch network includes sensors for identifying a failed optical switch and recovery optical waveguides and optical switches that provide recovery optical paths to bypass the failed optical switch.

The invention relates to a multi-protocol data transmission method based on an optical fiber channel, belongs to the technical field of data transmission, and solves the problems of complex communication network, difficult wiring and various equipment types during multi-protocol data transmission in the prior art. The multi-protocol data transmission method comprises the following steps: querying a plurality of controlled NT nodes, and determining the total data volume required to be sent in the current period; comparing the total data volume required to be sent in the current period with the total data volume capable of being sent, and determining a protocol scheduling mode for data transmission in the current period; and under the control of a protocol scheduling mode, for each protocol type, determining the data volume required to be sent by each NT node and the corresponding priority, and sending the data volume required to be sent by each NT node to the destination NT node of the corresponding protocol type according to the sequence of the priorities from high to low. Data transmission of the nodes of multiple protocols in the optical fiber channel is realized, and the equipment type is simple.

To detect abnormality of a communication cable before the communication cable is broken.SOLUTION: A robot 1 comprises: a plurality of links (7 to 10) which are connected in series to a base body (2) through a plurality of joints (21 to 24); a plurality of actuators (29) which drive the joints so as to relatively displace corresponding pairs of interconnected links: a plurality of controllers (32) which are decentralized and arranged at the base body and links, and control the actuators; communication cables 31 which are composed of optical cables interconnecting the controllers and transmitting information; and a plurality of light quantity measuring devices 40 which measure quantities I of light of light signals transmitted to the controllers through the communication cables 31. Each controller monitors the quantity I of light measured by the corresponding light quantity measuring device 40 to determine a state of the corresponding communication cable 31 based upon the quantity I of light.SELECTED DRAWING: Figure 3

A robot includes: links, connected in series to a base via joints; actuators, driving the joints to relatively displace a corresponding pair of links connected to each other; control devices, distributedly arranged in the base and the links and controlling the actuators; a communication cable, comprising an optical fiber connecting the control devices to each other and transmitting information; and light amount measurement devices, measuring the amount of light of an optical signal transmitted to the control devices via the communication cable. Each control device monitors the amount of light measured by the light amount measurement device corresponding thereto, and determines a state of the communication cable corresponding thereto based on the amount of light.

The application discloses a communication method, system and device and a computer readable storage medium, and relates to the communication field. The application sets corresponding sending logic gate modules and receiving logic gate modules for N processors. After receiving data transmitted by an optical module through the receiving logic gate module, the processor judges whether the received data includes the identification information of the processor. If the received data includes the identification information of the processor, the corresponding sending logic gate module is enabled to work, and data transmission between the corresponding sending logic gate module and the optical module is performed. If the received data does not include the identification information of the processor, the corresponding sending logic gate module is controlled not to work, and data transmission between the corresponding sending logic gate module and the optical module is not performed. Only one processor in the N processors performs data transmission with the optical module at the same time. The application solves the connection problem between the sending logic gate with the hot plug function on the N processors and the optical module with the hot plug communication interface.

Disclosed are a method and apparatus for establishing a Peripheral Component Interconnect Express (PCIe) optical interconnection link, a device, a non-volatile readable storage medium, and a system. The method includes: acquiring an upstream data signal transmitted through an electrical path, and detecting whether at least one Electrical Idle Ordered Set (EIOS) exists in the upstream data signal; recording a current link rate of the PCIe optical interconnection link, and determining whether the transmission of the at least one EIOS is completed by counting the at least one EIOS; and generating a target signal sequence of a corresponding rate according to the current link rate in a case where the transmission of the at least one EIOS is completed, and transmitting the target signal sequence to an opposite end through the PCIe optical interconnection link.

The application discloses a synchronous trigger circuit and system suitable for dam safety dynamic monitoring network equipment, the circuit comprises a current loop communication circuit, a fiber communication circuit and an output port driving bus. The current loop communication circuit can receive the synchronous trigger signal transmitted by the main control device or the upper level network equipment in the form of current loop and / or fiber channel, and simultaneously can forward the received synchronous trigger signal to the next level network equipment in the form of current loop and / or fiber channel; the fiber communication circuit can receive the synchronous trigger signal transmitted by the main control device or the upper level network equipment in the form of fiber, and simultaneously can forward the received synchronous trigger signal to the next level network equipment in the form of fiber and / or current loop channel. The output port driving assembly can transmit the synchronous trigger signal to the local network equipment, and realize the synchronous trigger of the local network equipment and other network equipment in the link. The application supports the mixed form transmission of current loop and fiber, the communication mode is flexible, the signal has strong anti-interference property, and is suitable for long distance transmission.

An optical transmitter includes an array of light sources to transmit visible light having a wavelength of from 580 nm to 700 nm along a respective core of a multicore fibre optic cable for receipt at a corresponding photodetector array of an optical receiver unit, and a controller that receives data from a transmitting computer system and encodes and transmits it by modulating the visible light output by the array of light sources. An optical receiver unit includes a photodetector array to receive the modulated visible light from the multicore fibre optic cable; and a controller to receive the output of the photodetectors; decode data from the received output, and provide the decoded data to a receiving computer system. An optical transceiver unit includes the optical transmitter and optical receiver.

The utility model provides a two-bus to optical fiber conversion system, and belongs to the technical field of signal conversion. The two-bus to optical fiber conversion system comprises a two-bus module, a signal conditioning module, a signal transmission module and an optical fiber module, the two-bus module is connected with the input end of the signal conditioning module, the two-bus module is configured to receive sensor signals, the output end of the signal conditioning module is connected with the input end of the signal transmission module, and the output end of the signal transmission module is connected with the optical fiber module and is configured to convert electric signals into optical signals. According to the invention, the accuracy and reliability of data transmission can be improved.

An optical communication system in which an aggregation station and a plurality of extension stations are connected in series with one another with the aggregation station at the front, wherein: said aggregation station outputs a downlink optical signal generated by subjecting a wireless signal to an E / O conversion to the plurality of extension stations, and obtains a wireless signal by subjecting an uplink optical signal inputted from the plurality of extension stations to an O / E conversion; each of the extension stations transmits a wireless signal obtained by subjecting the downlink optical signal received from the aggregation station to an O / E conversion, transmits an uplink optical signal generated by subjecting the received wireless signal to an E / O conversion to the aggregation station; and the wavelengths of the uplink optical signals and downlink optical signals assigned to the plurality of extension stations are identical.

A photonic transceiver module (20) and a photonic periphery device (21) with a photonic transceiver module (20) for a photonic communication system (10) of an apparatus (1), as well as the photonic communication system (10) and the apparatus (1), in particular a vehicle, such as an aircraft, are described, the photonic transceiver module (20) comprising at least one signal interface (23) for receiving and / or transmitting a signal from and / or to, respectively, at least one data collecting and / or transmitting unit (4) for collecting and / or transmitting, respectively, at least one parameter value, an optical modulation unit (24) for translating the signal to and / or from, respectively, the optical domain, and a device adaptor (22) configured to attach the photonic transceiver module (20) to the at least one data collecting and / or transmitting unit (4) to communicate in the optical domain as a node (5) of the photonic communication system (10).

The invention discloses an energy storage master-slave communication system and method, in the system, a master and a slave both comprise a BMS three-level architecture, and the BMS three-level architecture comprises a BAMS, a BCMU and a BMU which are in communication connection in sequence; the BAMS of the host is respectively connected with the EMS and the PCS, and the BAMS of the host uploads the operation data of the host and the slave to the EMS according to an IEC 60870-5-104 protocol; high-frequency uploading of operation data of the slave and real-time issuing of a control command of the host are completed between the host and the slave through an Aurora high-speed serial bus protocol; the BAMS of the host and the BAMS of the slave both comprise ZYNQ processors and SDRAMs electrically connected with the ZYNQ processors, and the SDRAMs serve as data interaction carrying carriers and are used for caching various data in a partitioned mode. According to the invention, point-to-point high-frequency communication between the master and the slave is realized by relying on the ZYNQ processor on the BAMS of the master and the slave and using an Aurora high-speed serial interface protocol, so that state evaluation, health prediction, balance control and power distribution of the whole station can be completed.

The invention discloses an optical receiver frequency response calibration device and method. The optical receiver frequency response calibration device comprises an industrial personal computer and an optical receiver to be measured. The industrial control computer is in communication connection with a vector network analyzer, an optical transmitter, an optical amplifier, a variable optical attenuator, an optical switch and an optical power meter; the optical transmitter receives a radio frequency signal sent by the vector network analyzer, outputs a modulated optical signal, sequentially passes through the optical amplifier and the variable optical attenuator, and then passes through the optical switch to be divided into a first path and a second path; when the optical switch is switched to the first path, the modulated optical signal is received by the optical receiver to be detected; and when the optical switch is switched to the second path, the modulated optical signal is received by the optical power meter. The invention solves the problems of high environmental requirements, incapability of calibrating phase-frequency response, poor system integration and the like of the traditional optical heterodyne calibration method and microwave frequency scanning method in the device level, and the problems of large test data volume, many calibration files and low test efficiency in the method level.

The embodiments of the present application provide a signal sending method and apparatus, a non-volatile readable storage medium and an electronic device, wherein the method includes: acquiring a first data signal and a first auxiliary signal that are to be sent to a first opposite-side device, wherein the first data signal is to be sent to the first opposite-side device via PCIe optical-fiber links of a quantity N, wherein N is a positive integer greater than or equal to 2; determining a first-signal-intensity sequence corresponding to the first auxiliary signal, wherein the first-signal-intensity sequence includes first signal intensities of a quantity M, wherein M is greater than or equal to 2; and according to the first-signal-intensity sequence, converting the first data signal into first optical signals of the quantity N, and via the PCIe optical-fiber links of the quantity N, sending the first optical signals of the quantity N to the first opposite-side device, wherein signal intensities of the first optical signals of the quantity M among the first optical signals of the quantity N and the first signal intensities of the quantity M have a one-to-one correspondence relation therebetween. The present application solves the problem that auxiliary information cannot be transmitted in the PCIe optical-fiber links well.

A method of testing fiber optic communication lanes includes sending a plurality of test parameters by a first end unit of a testing tool to a second end unit of the testing tool through at least one communication lane of a plurality of communication lanes that extend from a first cable endpoint to a second cable endpoint through at least one fiber optic cable. The first cable endpoint is connected to the first end unit and the second cable endpoint is connected to the second end unit, and the plurality of test parameters comprises wavelengths of a plurality of test signals. The method further includes sending the plurality of test signals by the first end unit to the second end unit through the plurality of communication lanes, and receiving test results through the at least one communication lane of the plurality of communication lanes.

A communication method and apparatus, and an optical bus network are provided. This application relates to the field of industrial data communication technologies. In the method, a controller sends, when 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 is for identifying the target optical head end; the controller determines a target management protocol from management protocols supported by the target optical head end; and 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. According to the method, a management mechanism by a controller for an optical head end and / or at least one optical terminal managed by the optical head end in an optical bus network is provided.

In a method, an optical head end first determines a first correspondence, where the first correspondence indicates a correspondence between a slave station device identifier and a slave station node identifier. Then the optical head end receives a first message from an optical terminal, where the first message includes device information, the device information includes a first device identifier, and the first device identifier indicates a first slave station connected to the optical terminal. Then, the optical head end determines, from the first correspondence, a first node identifier corresponding to the first device identifier. Further, the optical head end sends the first node identifier to the optical terminal.

The invention provides a periodic information cache space balancing and flow control method and system, and the method achieves the ordered issuing of messages through the establishment of a mapping relation between a message identifier and a load length and the combination of a DMA polling issuing mechanism. By calculating the cache number occupied by each message, the total cache number and the balance factor, the cache space is dynamically allocated according to the load length and the balance factor, it is ensured that cache resources are reasonably allocated according to message requirements, and the problem of resource waste or insufficiency caused by uneven allocation of the cache space is avoided. By judging whether the total cache space meets the preset condition or not and dynamically adjusting the load length or the cache unit space, the cache utilization efficiency and the adaptability of the cache requirements of all messages and the total cache space of the board card in one scheduling period are further optimized, the stability of periodic information transmission and the high efficiency of resource utilization are improved, and the resource utilization rate is improved. The problem that the bandwidth requirement cannot be met due to DMA congestion, scheduling failure or low bandwidth in the communication process is solved.

This application discloses a splitting apparatus, a dual-mode ONU, an optical network system, and a communication method, and relates to the field of optical network technologies. The splitting apparatus provided in this application has M groups of ports. The splitting apparatus includes M splitting elements, and the 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; and 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.