4results about How to "Reduce switching delay" patented technology

The application relates to the technical field of cross-domain multi-modal robots, in particular to a land-air robot with high ground self-adaptability and a control method thereof. The land-air robot comprises an air movement unit, a ground movement unit and an automatic driving module. The air movement unit is used for providing flight power for the land-air robot, so that the land-air robot has a flight mode. The ground movement unit is arranged at the bottom of the air movement unit, so that the land-air robot has a ground movement mode. The ground movement unit comprises a movement module and a five-link wheel-foot mechanism symmetrically arranged on the left and right sides of the land-air robot. The movement module is used for adjusting the posture of the five-link wheel-foot mechanism, so that the land-air robot realizes dynamic balance and posture righting in the ground movement mode. The automatic driving module is electrically connected with the air movement unit and the ground movement unit. The land-air robot in the application can move on land and in the air, and has good trajectory tracking performance in the land-air dual mode.

This invention relates to the field of data communication technology and discloses a data communication method and system. The method includes: calculating the average RSRP of the primary 4G link over multiple consecutive periods; when the average RSRP is lower than the link switching threshold, switching the service route to the secondary 4G link in a hot standby state, and determining the secondary 4G link as a valid 4G link; triggering the airborne monitoring equipment and the remote monitoring platform to perform bidirectional authentication and generate a session key based on the valid 4G link; using the session key to perform SM4 source encryption on the monitoring data, adding a UTC timestamp, and performing channel encryption to obtain a double-encrypted message; transmitting the double-encrypted message to the secure access gateway of the remote monitoring platform; and having the secure access gateway of the remote monitoring platform perform channel decryption on the double-encrypted message to obtain a source-encrypted data packet, which is then forwarded to the remote monitoring platform. This method achieves seamless traceability of monitoring data throughout the entire flight process of a low-altitude aircraft.

This disclosure relates to the field of communication and interaction technology, specifically to an audio transmission method, an audio transmission device, and an audio transmission system. The audio transmission method applied to the transmitting end includes: acquiring a stereo audio stream; mixing a first-channel audio stream and a second-channel audio stream to obtain a mixed audio stream for the first channel processing at the receiving end; determining square wave signal data corresponding to the mixed audio stream based on the transmission information of each audio frame in the mixed audio stream, for the second channel processing at the receiving end; combining the mixed audio stream and the square wave signal data, and transmitting the combined data via a first connection and a second connection pre-established with the receiving end, respectively, so that the receiving end can switch between the first audio stream received via the first connection and the second audio stream received via the second connection, thereby improving switching accuracy, reducing switching latency, and ensuring the smoothness and continuity of audio playback.

This utility model discloses a seamless 15V dual power input switching circuit, comprising a connector circuit, a switching circuit body, and a protection circuit. The connector circuit includes first and second connector circuits for connecting to an external 15V power input, which are respectively connected to the switching circuit body, enabling switching between the two power sources. The protection circuit connects the first connector circuit and the switching circuit body to prevent reverse connection of the power supply and protect downstream components. Compared with traditional solutions such as contactors, this seamless dual power input switching circuit significantly reduces switching delay, enables zero-interruption switching, and significantly improves power supply reliability, meeting the needs of devices sensitive to power switching time. Furthermore, it uses a combination of general-purpose components, eliminating the need for a dedicated switching chip and effectively reducing BOM costs.