5 results about "Frame Relay" patented technology

The application discloses an infrared small target tracking method and system based on local trackers, and the method comprises the following steps: step (1), generating filters corresponding to each convolution layer in a pre-trained multi-convolution layer network; step (2), generating a plurality of local trackers, each local tracker comprising a multi-layer convolution layer network, a plurality of filters, a fusion module and a maximum value solving module; step (3), training the local trackers to obtain trained local trackers; and step (4), dividing a region to be identified into a plurality of local regions, and deploying the trained local trackers in different local regions to track targets, wherein, in the tracking process, if a local target is located, the local tracker will follow the target to move, and the target will be tracked in subsequent frames until the target cannot be tracked any more. The application can realize long-term tracking of frequently discontinuous moving targets.

A vehicle-mounted communication system includes: a plurality of vehicle-mounted devices; and a relay device, wherein a first vehicle-mounted device of the vehicle-mounted devices transmits a frame addressed to a second vehicle-mounted device of the vehicle-mounted devices to the relay device, the frame being a frame for transmission and reception of information between the first vehicle-mounted device and the second vehicle-mounted device, and the relay device determines whether or not relay of the frame to the second vehicle-mounted device is permissible based on a result of comparison between a required safety level and a system safety level, the required safety level being a level of safety required for communication between the first vehicle-mounted device and the second vehicle-mounted device, the system safety level being at least based on function safety levels of the first vehicle-mounted device and the second vehicle-mounted device regarding safety of a vehicle.

The application provides a method and device for heterogeneous security reinforcement of a pulse code modulation voice data stream, which comprises: dividing each frame E1 relay code stream data into four functional areas in units of channels; pre-arranging data in a first voice data channel area to be reinforced to form a 16-byte row matrix, and then performing a 128-bit mode grouping algorithm to reinforce the data; pre-arranging data in a second voice data channel area to be reinforced to form a 14-byte row matrix, and then performing an S-box different from the previous step to complete nonlinear permutation; performing XOR calculation on the data in the second voice data channel area to be reinforced by using a dynamic round key of the first voice data channel area to be reinforced, and then performing mixed operation on the data in the two channel areas; pushing the data after reinforcement into an E1 relay code stream sending buffer, and then sequentially sending the data through a relay interface LIU chip when the next 125-microsecond frame synchronization arrives; and performing desolidification processing on the data received by a switch of a receiving end.

The present disclosure relates to communication range extension using a relay in a wireless LAN system. According to an embodiment of the present disclosure, provided is a method comprising the steps in which: a relay station (STA) receives a first beacon frame from an access point (AP); the relay STA transmits, to an end STA, a second beacon frame including relay transmission notification and at least a portion of information included in the first beacon frame, wherein the relay transmission notification indicates that a frame including the relay transmission notification is transmitted by the relay STA; the relay STA relays one or more frames for association between the AP and the end STA on the basis of the transmission of the second beacon frame including the relay transmission notification; and the relay STA relays data transmission between the AP and the end STA after the AP and the end STA are associated with each other.

This device provides a relay system that can suppress unnecessary waiting times in tools and other systems even if diagnostic frame relay failures occur. [Solution] A relay device for relaying communication between a tool and an ECU, comprising: a buffer for holding frames awaiting relay, a determination unit for determining whether or not an overwrite of a diagnostic frame to be communicated from the ECU to the tool occurs; a storage unit for storing identification information of the ECU that sent the diagnostic frame to be overwritten and data of the diagnostic frame to be overwritten, if the determination unit determines that an overwrite has occurred; and a notification unit for notifying the tool of a relay failure based on the identification information and data stored in the storage unit.