74results about "Bus-type electromagnetic networks" patented technology

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 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 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.

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.

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.

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 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 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.

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.

An architecture for peripheral component interconnect express compliant signals over optical fiber is provided. A method includes, based on a first determination that an impedance level of a receiver device satisfies a defined impedance level, causing a driver to pulse at a first defined frequency and duty cycle level. Further, based on a second determination that a number of pulses received, at a transimpedance amplifier, at the first defined frequency and duty cycle level satisfy a defined number of pulses and at least one defined criterion, the method causes a second impedance level of the driver to match the defined impedance level and causes the driver to enter an electrical idle state. The method also includes facilitating, by a transmitter, transmission of data to the receiver device at a second defined frequency level, via an optical fiber link.

Embodiments of the present disclosure provide methods and apparatuses for signal transmission such as high-speed serial bus signal transmission. A method performed by a retimer adapter comprises obtaining at least one configuration scheme of the retimer adapter. The retimer adapter is able to be connected between a first communication device and a second communication device. The method further comprises configuring the retimer adapter to operate at one of the at least one configuration scheme of the retimer adapter.

System (100) for converting a bidirectional bus (212) into two unidirectional buses, comprising a first bus (222) which communicates data in a first direction and a second bus (224) which communicates data in a second direction, wherein the system (100) comprises: a first logic circuit (220), which is coupled to the first bus (222) and to the second bus (224) and configured to: Determine that the first bus (222) will be dominant over the second bus (224); and Generating an indication that communication is in the first direction, based on the determination that the first bus (222) becomes dominant before the second bus (224); and a second logic circuit (210) which reacts to the first logic circuit (220), which is coupled to the bidirectional bus (212) and configured to: Allowing communication between the bidirectional bus (212) and the first bus (222) based on the indication that the communication is in the first direction; and Blocking communication between the bidirectional bus (212) and the second bus (224) based on the indication that the communication is in the first direction, wherein the first logic circuit (220) comprises a timer circuit coupled to a logic element to generate the indication that the communication is in the first direction, wherein the first bus (222) is configured to transmit the data to an external device (150, 160), and wherein the second bus (224) is configured to receive the data from the external device (150, 160).

Various example embodiments of the present disclosure relate to a physical layer, PHY, circuitry for a serial receiver being configured to receive a control signal comprising information indicative for a gap between serial signal bursts from transmitting NTs, for interrupting the operation of its signal processing circuitry in accordance with the information. Other example embodiments relate to a medium access control, MAC, circuitry configured to determine a burst allocation map for network terminals, NTs, and to generate a control signal for a PHY circuitry comprising information indicative for a gap between serial signal bursts from transmitting NTs based on the burst allocation map. Further example embodiments related to a serial receiver, and a method therefor.

Generators, systems, and methods can comprise a resistance temperature detector (RTD) module; a controller area network (CAN) module; and an optical interface between the RTD module and the CAN module. The optical interface can be directly connected to each of the RTD module and the CAN module. The RTD module can be configured to convert first optical signals from the optical interface to first RTD signals and to convert second RTD signals to second optical signals for transmission through the optical interface to the CAN module. The CAN module can be configured to convert the second optical signals from the optical interface to first CAN signals and to convert second CAN signals to the first optical signals for transmission through the optical interface to the resistance temperature detector (RTD) module.

This is a distributed network element and submarine network element management system for optical communication systems. [Solution] The system includes a plurality of cable landing stations configured to be communicatively coupled using one or more optical communication cables in a peer-to-peer network for routing one or more optical signals using one or more network elements. Each cable landing station includes a management device configured to determine one or more optical communication paths for routing optical signals, and a command / response optical device communicatively coupled to the management device for routing optical signals based on the optical communication paths. Upon receiving a request to route at least one optical signal, the management device of each cable landing station is configured to determine at least one optical communication path for routing the optical signal based on a topology map of the peer-to-peer network of the plurality of cable landing stations.

The invention provides an integrated avionics system architecture based on a passive optical network and a communication method thereof, the integrated avionics system architecture is used for access of an optical network terminal unit group, and each general processing module is connected with the optical network terminal unit group through a first optical line terminal and a first optical splitter to form a first network; each general processing module is connected with the optical network terminal unit group through a second optical line terminal and a second optical splitter to form a second network; the first network and the second network form a first biplanar network group. According to the technical scheme, no exchange chip is needed, and delay and jitter caused by exchange are avoided. In consideration of the fault risk of single-path communication, a dual-plane network group is constructed, two independent communication paths are provided, and path-level redundancy is realized.

An optical communication system and method. The system includes a plurality of cable landing stations configured to be communicatively coupled using one or more optical communication cables in a peer-to-peer network for routing of one or more optical signals using one or more network elements. Each cable landing station includes a management device configured to determine one or more optical communication paths for routing optical signals, and a command / response optical device communicatively coupled to the management device for routing optical signals in accordance with the optical communication path. In response to receiving a request for routing at least one optical signal, the management device of each cable landing station is configured to determine at least one optical communication path for routing the optical signal in accordance with a topology map of the peer-to-peer network of the plurality of cable landing stations.

This application discloses a communication system and a communication apparatus. In the communication system, an optical terminal includes at least one electrical port configured to connect to another optical terminal. When a first optical terminal is connected to at least one second optical terminal in series through an electrical port, the first optical terminal can send data of the second optical terminal to the at least one second optical terminal through the electrical port, and the second optical terminal can receive a data frame from the first optical terminal through an electrical port, to obtain the data that is of the second optical terminal and that is delivered by an optical head end. Because an electrical port-based connection manner has no optical signal attenuation problem caused by an optical port-based connection manner, a problem that a quantity of optical terminals is limited due to an optical path loss can be resolved. This helps expand a quantity of optical terminals that can be connected in the communication system, and further helps expand application of the communication system to an application scenario of massive nodes.

The invention discloses an intelligent equipment control method based on a soft bus and related equipment, and can be applied to the technical field of intelligent control. According to the invention, after the service registration operation of the target soft bus is carried out in the preset optical fiber whole network system, the service registration operation of the plurality of intelligent devices is carried out in the controller of the target soft bus, and then the first intelligent device is searched in the local area network of the area where the intelligent devices are located to obtain the second intelligent device; according to the embodiment of the invention, the third intelligent equipment is obtained after the second intelligent equipment is authenticated in the local area network of the area where the intelligent equipment is located, so that the third equipment can be accurately accessed to the preset optical fiber whole-network system, and then in the local area network of the area where the intelligent equipment is located, the third intelligent equipment is obtained. The interaction process of the plurality of third intelligent devices is controlled through the preset optical fiber whole network system, so that the interaction process of the plurality of intelligent devices can be completed without depending on a public network, the operation convenience of the intelligent devices is effectively improved, the operation time delay of the intelligent devices is reduced, and the user experience is improved.