68 results about "Transport medium" patented technology

An example first user equipment (UE) device for communicating media data includes: a memory configured to store media data; and a processing system implemented in circuitry and configured to: establish a media communication session with a second UE device; request that an intermediate network device perform one or more media processing tasks on media data destined for the second UE device and originating from the first UE device, the intermediate network device being between the first UE device and the second UE device; and send the media data of the media communication session destined for the second UE device to the intermediate network device to cause the intermediate network device to perform the one or more media processing tasks on the media data.

The invention provides a pipe network multi-robot cooperative fault positioning method, system and device and a storage medium, and relates to the technical field of intelligent detection, and the method comprises the steps: obtaining pipe network state data sent by a plurality of robots deployed in a pipe network, and determining a fault region corresponding to abnormal data when the abnormal data exists in the pipe network state data; the first robot is controlled to inject a detection signal into the pipe network, and a first signal sent by the second robot after receiving the detection signal and a second signal sent by the third robot after receiving the detection signal are obtained; determining an initial fault position in the fault area by combining the first signal and the second signal; obtaining physical characteristic parameters of the pipe network and medium parameters of a transportation medium in the pipe network; and on the basis of the initial fault position, a target fault position is determined in combination with the physical characteristic parameters and the medium parameters. The method has the technical effect that the fault positioning precision in the complex pipe network environment is improved.

The invention discloses a long-distance port expansion device based on a multi-port PHY chip, and the device comprises a near-end device which is integrated with a multi-channel serial interface supporting a multi-port protocol; the remote equipment comprises at least one PHY (Physical Layer) chip, and the PHY chip is provided with an uplink multi-channel protocol interface supporting a multi-port protocol and is provided with a plurality of downlink network ports; and the multi-channel serial interface of the near-end equipment is connected with the uplink multi-channel protocol interface of the PHY chip through a long-distance transmission medium. According to the invention, the port access and data forwarding functions of a traditional switch (including a switch realized by a switch chip or a processor) are directly replaced by the far-end multi-port PHY, and the method is suitable for various network communication scenes sensitive to network cost, time delay and architecture complexity.

A method for detecting a failure in a slot-based random-access procedure of a wireless device (14a, 14b, 14c; 14), preferably an ambient IoT (Internet of Things) device, in a communication network (10), wherein the method (100) comprises: - Transmitted, by the wireless device (14a, 14b, 14c; 14), a first message of the random access procedure to a node (12) of the communication network (10), wherein the first message comprises a random value and / or device identification information, for requesting access to a transmission medium of the communication network (10), preferably for requesting transmission resources from the node (12); and - Detect, by the wireless device (14a, 14b, 14c; 14), a failure of a random access procedure when no response to the first message is received by the wireless device (14a, 14b, 14c; 14) within a period of time represented by a defined number of slots.

A coal mine deep well hoist communication system and method based on intelligent metasurface assistance, the system comprises an Internet of Things device, an edge computing node, a cloud server and an intelligent metasurface, the Internet of Things device comprises a tension sensor, a weighing sensor and an acceleration sensor; the tension sensor, the weighing sensor and the acceleration sensor are connected with the edge computing node through the intelligent metasurface, and the edge computing node is connected with the cloud server through a wired transmission medium. The method comprises the following steps: arranging the intelligent metasurface and constructing an intelligent communication system; modeling the energy loss and the calculation time delay in the calculation offloading process of the intelligent communication system; constructing a comprehensive benefit function integrating the energy efficiency and the calculation time delay; taking the maximization of the comprehensive benefit function as the optimization target of the calculation offloading strategy; constructing a security reinforcement learning model; and realizing the optimal calculation offloading benefit. The system and method can ensure the stability of the wireless data link inside the hoist and improve the transmission efficiency of data.

A system for wireless power transmission is disclosed, and includes a plurality of UAVs, each having a transfer medium reservoir, an onboard power conversion unit, a communication module, a navigation module, a power delivery interface, and at least one sensor. Each UAV is configured to interface with a transfer medium source, receive a chemical power transfer medium into the transfer medium reservoir, fly to a target area containing a power recipient having a power demand, identify and land within a landing zone, provide chemical power transfer medium to an endpoint power conversion, and evaluate at least one directive to decide what action to take based on feedback. The system also includes a fleet control system communicatively coupled to the plurality of UAVs and configured to operate the plurality of UAVs as a swarm, generate at least one directive, and distribute the directive to the communication module of each UAV.

A method for initiating a random access procedure of a wireless device (14a, 14b, 14c; 14), preferably an ambient Internet of Things (IoT) device (14a, 14b, 14c; 14), in a communication network (10), the method (100) comprising: - Receiving, by the wireless device (14a, 14b, 14c; 14), a trigger message transmitted from a node (12) or a further node (16) of the communication network (10) for triggering the transmission of a first message of the random access procedure, - Determining, by the wireless device (14a, 14b, 14c; 14), in response to the received trigger message, whether a condition for transmitting the first message is fulfilled; and - Transmitting, by the wireless device (14a, 14b, 14c; 14), the first message to the node (12) based on a result of the determining, wherein the first message comprises a random value and / or a device identification information for requesting access to a transmission medium of the communication network (10), preferably for requesting transmission resources from the node (12).

An apparatus comprising: an input for receiving a stream comprising a plurality of data transmission units; a filter configured to identify, in the stream, at least one data transmission unit having control data of a predetermined type and remove said control data to generate a second stream; a protocol module configured to receive said second stream and identify, in the second stream, at least one data transmission unit of a predetermined type and add protocol information to the at least one data transmission unit; and wherein the removal of said control data provides time in said second stream for the addition of the protocol information; and wherein the apparatus includes a transceiver configured to output signals representative of said data transmission units of the second stream with said protocol information added to a transmission medium.

To provide a conveying device that can stably transport media. [Solution] The system comprises a media transport unit 23 for transporting a medium 15, a first drive unit 22 for driving the media transport unit 23, a media supply unit 29 for supplying the medium 15 toward the media transport unit 23, a second drive unit 28 for driving the media supply unit 29, a tension bar 31 positioned in the transport path between the media transport unit 23 and the media supply unit 29, swinging in a first direction D1 and a second direction D2 to apply tension to the transported medium 15, a third drive unit 38 for swinging the tension bar 31, a measuring unit 33 for measuring the output of the third drive unit 38 when moving the tension bar 31, and a control unit 26. The measuring unit 33 measures the first output of the third drive unit 38 when moving the tension bar 31 in the first direction D1 and the second output of the third drive unit 38 when moving the tension bar 31 in the second direction D2. The control unit 26 controls the third drive unit 38 based on the measurement results of the measuring unit 33.

The invention relates to the field of resource allocation methods of communication systems, in particular to a distributed RIS-assisted millimeter wave communication optimization method based on adaptive information theory fusion, which comprises the following steps: constructing a distributed RIS-assisted millimeter wave communication optimization system; calculating LOS path loss based on a random positioning obstacle; calculating RIS path loss based on the attenuation characteristic of the transmission medium; estimating the outage probability of the system based on an adaptive information theory fusion algorithm, and calculating the overall loss of the system by taking the outage probability as a communication performance index; according to the method, the loss model of each path is refined, the influence of random shielding is quantified according to the actual situation, the loss model is divided into single-path shielding calculation, and transmission medium absorption attenuation and obstacle shielding loss are combined into a unified attenuation item in combination with a scene for processing multi-path shielding, so that the modeling complexity of multi-factor superposition is simplified.

The invention relates to an industrial data acquisition system, method and device based on an SD-WAN communication technology. The system comprises an edge layer module, a network physical layer module and a control layer module, the edge layer module comprises at least one edge layer; the control layer module comprises a data acquisition server unit, a first client device unit, a core switch unit, an SD-WAN controller unit, a firewall protection unit, an optical network unit and a mobile terminal APP unit. The network physical layer module comprises a transmission medium unit and a matched connection equipment unit; the edge layer module comprises a second client device unit, an edge switch unit, an edge data acquisition terminal unit and a device layer unit; and the management and control layer module is connected with the edge layer module through the network physical layer module. By adopting the system, the communication delay of the industrial data in the transmission process can be reduced, the data transmission stability is improved, and the data security is improved.

This invention discloses a method and apparatus for long-distance information transmission based on a wired transmission medium. The method includes: obtaining a set of historical transmission information; the set of historical transmission information includes several sequences of historical transmission information; modeling the wired transmission medium based on the set of historical transmission information to obtain transmission feature information; and performing transmission processing on the information to be transmitted based on the transmission feature information.

A method for detecting a failure in a slot-based random access procedure of a wireless device (14a, 14b, 14c; 14), preferably an ambient Internet of Things (IoT) device, in a communication network (10), the method (100) comprising: - Transmitting, by the wireless device (14a, 14b, 14c; 14), a first message of the random access procedure to a node (12) of the communication network (10), wherein the first message comprises a random value and / or a device identification information for requesting access to a transmission medium of the communication network (10), preferably for requesting transmission resources from the node (12); and - Detecting, by the wireless device (14a, 14b, 14c; 14), a failure of the random access procedure, if no response to the first message is received by the wireless device (14a, 14b, 14c; 14), within a period represented by a defined number of slots.

The application discloses a network system based on a wireless bridge, and belongs to the technical field of communication. The network system comprises a first wireless bridge device and a POP device, wherein the first wireless bridge device is internally provided with a user identification card of a 5G customized network, and the POP device and the first wireless bridge device are configured with a fixed IP address in the 5G customized network; the first wireless bridge device is used for accessing the 5G customized network through a wireless signal; the POP device accesses the 5G customized network through a preset private line and is used for establishing a 5G customized network private line connection between the first wireless bridge device and a target IP address. The network system disclosed in the application embodiment replaces optical cables with a 5G customized network private line, forwards data by using a POP device as a convergence point, and does not depend on transmission media such as optical cables, so that the problem that network communication cannot be performed due to faults of transmission media such as optical cables in the prior art can be solved.

The invention discloses communication equipment, a communication method, a program product, a computer storage medium and a chip, relates to the technical field of communication, and is used for solving the technical problem of how to improve network bandwidth. The communication device is connected with different devices through different interfaces, and can be connected with the same device through one or more interfaces. In the communication process of service messages, the messages are processed through the data processing circuit, and the service messages not only can use one or more first interfaces at the input end, but also can use one or more second interfaces at the output end at the same time. The same or different first service messages can be transmitted between different first interfaces, and the same or different second service messages can be transmitted between different second interfaces, so that the number of service messages transmitted by the communication equipment in unit time and the communication bandwidth can be improved; the problem that the bandwidth is limited due to the fact that communication processes of different transmission media are independent is solved, and the communication efficiency between devices is improved.

This invention relates to the field of communication technology, specifically to an in-vehicle communication system. It includes an OLT optoelectronic module, an optoelectronic composite cable, and an OUT optoelectronic module. The OLT optoelectronic module includes a first optical circuit board, a control circuit board, and a first interface. The first optical circuit board has a first transmitting end and a first receiving end, and is electrically connected to the control circuit board and the first interface. The OUT optoelectronic module includes a second optical circuit board, a second interface, and an in-vehicle camera. The second optical circuit board has a second transmitting end and a second receiving end, and the second interface and the in-vehicle camera are both electrically connected to the second optical circuit board. The two ends of the optoelectronic composite cable are respectively connected to the first interface and the second interface. The signal transmission of this in-vehicle communication system adopts an "electric-optical-electric" conversion transmission method. Compared with pure electric signal transmission, optical signals as a transmission medium have the advantage of high speed, which can significantly improve the system response speed and image transmission stability.

Described herein is a network that uses a high priority enhanced distributed channel access (HiP EDCA) policy. A wireless access point includes one or more memories and one or more processors communicatively coupled to the one or more memories. The one or more processors, individually or collectively, perform an operation that includes broadcasting a message comprising a portion of a HiP EDCA policy of the wireless access point and providing a user device access to a transmission medium using HiP EDCA according to the HiP EDCA policy.

A media drive security bin with a hydraulic lift table for storing and transporting media drives while ensuring secure tracking and retrieval of the media drives from the bin. The lift table features a foot pedal operation to raise the table and hand lever for lowering. A secure scanner is mounted along a chamber entrance to provide recordation of all information pertinent to the holding and transportation of the media data drives. A window provides ease of visual confirmation of the media bin contents.

The application discloses a large-scale heterogeneous local power communication network routing and resource scheduling method based on a hybrid expert, and the method comprises the following steps: step S1, establishing a large-scale heterogeneous local communication network routing and resource scheduling optimization problem according to the differentiated QoS requirements of services on data transmission rate, time delay and reliability, jointly optimizing the transmission path of each service and the transmission medium, channel and data modulation mode on the path, and realizing the minimum difference between the required performance of the service and the supply performance of the network; and step S2, solving the routing and resource scheduling optimization problem established in step S1 based on a hybrid expert algorithm, obtaining the transmission path of each service and the transmission medium, channel and data modulation mode scheme on the path, and the minimum value of the performance supply-demand difference.

A method includes obtaining, at a specified device, one or more bandwidth maps contained in communications in a first direction along a transmission medium. Each bandwidth map identifies when one or more other devices are allowed to communicate in a second direction opposite the first direction along the transmission medium. The method also includes using the one or more bandwidth maps to identify expected features of communications from the one or more other devices in the second direction along the transmission medium. The method further includes identifying actual features of the communications from the one or more other devices in the second direction along the transmission medium. In addition, the method includes synchronizing the specified device with the communications from the one or more other devices using the expected and actual features.

The monitoring system comprises a control terminal under a power line carrier communication architecture, a gateway device and a plurality of electric devices, a power line is used as a transmission medium, the electric devices upload device parameter data to the control terminal through the gateway device, and the control terminal sends the device parameter data to the gateway device. The equipment parameter data at least comprises channel state information; the control terminal is used for carrying out equipment monitoring and instruction generation according to one or more pieces of equipment parameter data, and issuing a generated equipment control instruction to the electric equipment through the gateway equipment; wherein the equipment monitoring data comprises equipment positioning information and / or equipment health attributes, the embodiment of the invention provides a fusion type monitoring system integrating multiple functions of communication, sensing, equipment monitoring, remote control and the like, the problem of high data integration difficulty is solved, the coverage range of the equipment monitoring system is remarkably expanded, and the equipment monitoring efficiency is improved. And the technical requirement of flexibly adapting to complex and changeable application scenes is met.

The invention discloses a high-precision communication sensing integration method, belongs to the technical field of communication sensing integration, and aims to solve the problems of complicated steps and low accuracy of traditional microalgae density detection. The method comprises the following steps: preparing a microalgae sample and obtaining a density reference value, deducing a communication bit error rate mathematical expression related to multiple parameters, designing an OOK / PAM4 modulation and low-complexity nonlinear equalization algorithm, obtaining a bit error rate data set by taking a microalgae solution as a transmission medium, and constructing and verifying a microalgae density-bit error rate correlation model. Reversely deducing a density value, optimizing a test interval, repeatedly verifying the accuracy rate, outputting multiple parameters, and analyzing an association relationship; communication and sensing collaboration is achieved, the average accuracy rate of microalgae density monitoring exceeds 95%, the adaptation rate range is wide, chip integration of an equalizer is easy, no contact is achieved, environmental protection is achieved, and the system is suitable for microalgae cultivation, marine environment monitoring and other scenes.

A relay transport device configured to relay and transport a medium fed from the feeding device to the recording device includes a first restriction section having a first restriction surface configured to position one first edge of the medium in a width direction of the medium fed from the feeding device; a transport section configured to transport the medium toward the first restriction surface; a first auxiliary guide disposed downstream of the first restriction section in the transport direction and having a first auxiliary guide surface configured to restrict a position of the first edge of the medium; and a second auxiliary guide disposed on an opposite side from the first auxiliary guide with the medium interposed therebetween and having a second auxiliary guide surface configured to restrict a position of a second edge of the medium on the opposite side from the first edge.

This technology provides a way to suppress the increase in size and cost of media processing equipment. [Solution] The media processing device includes a first transport unit that transports the media in a first transport direction by gripping and rotating the media; a second transport unit that transports the media in a second transport direction different from the first transport direction by contacting the upper surface of the media that has passed through the first transport unit and rotating; an accumulation unit that accumulates the media transported by the second transport unit; an accumulation unit that binds the multiple media accumulated in the accumulation unit; and a drive unit that rotates the first transport unit and the second transport unit, and moves the second transport unit to a transport position in which it can transport the media accumulated in the accumulation unit while contacting it, and to an accumulation position in which it moves away from the media accumulated in the accumulation unit.

The invention discloses a method, equipment and a system for applying induction communication to an urban rail system, belongs to the field of rail transit, and provides a low-cost, reliable and continuous train-ground and train-train wireless mode by taking existing metal conductors such as an overhead line system, a contact rail, a rail, a metal pipeline and a cable of an urban rail or a newly laid induction line as an induction communication transmission medium. The system can be used as a backup communication mode, meets communication requirements of train dispatching, train operation control and the like, supports data, voice and call transmission, can support two-way transmission, and can be used as an emergency transmission channel.

The present application relates to the technical field of radio communications and discloses a multi-link allocation method based on gain learning. This method is used in a station and comprises: selecting a destination link and sending request data over the destination link at the current time; updating a Q-value of the destination link for the next time point based on response data sent by an access point (AP) over the destination link, wherein the response data indicates the selection status of the destination link by other STAs at the current time; and selecting a destination link for the next time point according to an updated Q-table, wherein the Q-table stores Q-values ​​for multiple links at the most recent time point. This method reduces the probability that other STAs will select the same link as the current STA, thereby minimizing interference in data transmission.Furthermore, a rational allocation of multi-link resources is achieved, and system throughput is increased. The present application further discloses a multi-link allocation device based on reinforcement learning, a STA, an AP, and a medium.

An apparatus comprising at least one integrated circuit configured to cause the apparatus to: determine delay information and / or jitter information for a first plurality of data units in a first data transmission, the first plurality of data units in the first transmission being received by a receiving device via different connections from a transmitting device; in dependence on the determined delay information and / or jitter information for the first plurality of data units, determine for a second transmission of a second plurality of data units, which one or more of the second plurality of data units is to provide redundant data, the second transmission to be received by the receiving device via the different connections between the transmitting device and the receiving device; and cause information about which one or more of the second plurality of data units is to provide redundant data, to be provided to the transmitter.

Non-transitory, machine-readable storage medium (304; 606) encoded with instructions that can be executed by a hardware processor (302; 604) of a computer component (300) to cause the hardware processor (302; 604) to: to receive a Physical Layer Protocol Data Unit (PPDU), wherein the PPDU includes protocol-specific control information and user data from a Wireless Local Area Network (WLAN) device in a computer network; to identify a PPDU packet type; If the packet type corresponds to a short packet, restrict the transmission of an outgoing PPDU; if the packet type is not a short packet, to allow the outgoing PPDU to be transmitted simultaneously with another transmission on the same transmission medium, the instructions further instructing the hardware processor (302; 604) to: to determine the length of a data segment of the PPDU; and to compare the length of the data segment with the length of a PPDU data segment corresponding to a short packet, where the short packet includes a TCP acknowledgment (ACK) message.

A method in a communications device includes: maintaining an association between the communications device and a basic service set identifier; detecting a message at a wireless interface of the communications device; determining whether the message is associated with the basic service set identifier; and when the message is not associated with the basic service set identifier, determining whether to update a timer corresponding to transmission medium availability based on a received signal strength of the message.