21results about How to "Guaranteed transmission reliability" patented technology

The invention belongs to the technical field of network transmission, and particularly relates to a time-sensitive network flow routing and scheduling method based on centralized control. Comprising the steps that CNC constructs network topology and generates global topology information; the CUC collects demand information of each to-be-transmitted traffic from each source node and divides traffic priorities according to the demand information; the CNC generates an optimal transmission path for each flow according to the global topological information; the CNC distributes a transmission time slot for each flow and dynamically adjusts the transmission time slot; carrying out synchronous distribution on the optimal transmission path and the transmission time slot, optimizing the transmission time slot and controlling the jitter of the transmission time slot; a scheduling table is generated according to the final distribution result of the paths and the time slots, and the CNC distributes the scheduling table to each network device; when the network state is changed, the scheduling table is dynamically adjusted to realize real-time routing and scheduling of the flow; according to the invention, the dynamic management of the flow priority is realized, the utilization rate of network resources is enhanced, and the service quality and high availability of transmission are ensured.

The invention discloses a method for remotely controlling Android equipment through MQTT messages based on multi-factor identity verification. The method comprises the steps that S1, a two-way multi-factor identity verification system is configured in a remote control server; s2, a client application program supporting an MQTT protocol is deployed on the Android device; s3, issuing a starting or closing instruction of the application program and a modification instruction set by the system through an MQTT protocol; s4, the remote control server starts a multi-factor identity verification system to verify the identity of the user; s5, verifying the identity of the remote control server through a multi-factor verification system; s6, preventing unauthorized access and tampering; s7, the control instruction is decrypted through the MQTT client application program; s8, feeding back an operation result to the remote control server in a message form through an MQTT protocol; and S9, recording the feedback operation result in a server log. According to the invention, by introducing multi-factor identity verification and an MQTT protocol, safe and efficient remote control of the Android device is realized.

The invention relates to the technical field of ad hoc network data communication, in particular to an ad hoc network communication routing method and system considering battery residual energy and a medium. According to the method, residual energy virtual hops are calculated according to battery residual energy of a reference node, multipath attenuation and environmental factor influences are considered at the same time, and node receiving signal strength virtual hops are calculated according to signal strength of a transmitting node. In the path selection process, the node receiving signal strength virtual hops and the residual energy virtual hops serve as judgment bases, the routing path with higher quality and stability is selected, transmission along a single path is avoided while transmission reliability is guaranteed, node energy consumption is balanced, and the problems of resource waste and overhigh local node energy consumption are avoided. The reliability and stability of the communication transmission process are ensured, and meanwhile, the node resources are reasonably scheduled, so that the node energy consumption is balanced.

The embodiment of the application provides a kind of data transmission method, system of vehicle, vehicle and readable storage medium, the method comprises: the functional data stream of vehicle is collected, wherein, functional data stream is used to execute the driving control function of vehicle;Based on the data type of functional data stream, the data transmission strategy of functional data stream is determined, wherein, data type is used to characterize driving control function and vehicle's driving safety performance is associated, or, driving control function and vehicle's operation performance is associated, data transmission strategy is used to characterize the rule of transmission functional data stream by different data transmission channel;According to data transmission strategy, functional data stream is transmitted to cloud, wherein, functional data stream is aggregated by cloud according to the data type of functional data stream, and the running state of vehicle is used to make remote cockpit determine aggregated functional data stream.The application solves the technical problem of low communication reliability of vehicle in the related art.

The invention relates to a special intelligent robot for a nuclear reactor and a control method of the special intelligent robot. The special intelligent robot for the nuclear reactor comprises a mechanical system and a control system based on the CAN bus technology. The mechanical system comprises a plurality of moving arms, a plurality of rotating joints and at least one telescopic joint, each joint comprises a dynamic sealing structure, and each dynamic sealing structure comprises two dynamic sealing rings which are redundant to each other and a leak detection system; the control system is used for controlling the mechanical system to move. The special intelligent robot for the nuclear reactor disclosed by the embodiment of the invention has excellent dynamic sealing performance, and under the condition that any one dynamic sealing ring fails, the remaining dynamic sealing ring still can ensure the sealing performance of a mechanical system of the special intelligent robot for the nuclear reactor; and the special intelligent robot for the nuclear reactor has an automatic leak detection function, and can give an alarm under the condition that the dynamic sealing structure fails so as to prompt to maintain the dynamic sealing structure, so that the safety and reliability of the special intelligent robot for the nuclear reactor are improved.

The utility model discloses a POP packaging structure of a millimeter wave transmission device, which comprises a top substrate, a top packaging body, a top welding piece, a bottom substrate, a bottom packaging body and a bottom welding piece, and the top packaging body and the bottom packaging body are chip packaging bodies capable of transmitting millimeter wave signals. Each of the top packaging body and the bottom packaging body comprises a first surface and a second surface which are oppositely arranged and a side surface connected with the first surface and the second surface, each of the top substrate and the bottom substrate comprises a first surface and a second surface which are oppositely arranged and a side surface connected with the first surface and the second surface, the first surface of the top packaging body is arranged on the first surface of the top substrate, and the second surface of the bottom packaging body is arranged on the second surface of the bottom substrate. The top welding piece is arranged on the second surface of the top substrate, the first surface of the bottom packaging body is arranged on the first surface of the bottom substrate, and the bottom welding piece is arranged on the second surface of the bottom substrate; the packaging structure further comprises insulating glue and packaging pieces, the second face of the top packaging body and the second face of the bottom packaging body are oppositely arranged and bonded through the insulating glue, and the packaging pieces are arranged on the side face of the top substrate, the side face of the bottom substrate, the side face of the top packaging body and the side face of the bottom packaging body.

The invention provides a resource sensing method and device, a terminal and indication equipment. The method comprises the following steps: acquiring a multiplexing mode of a first sidelink SL positioning reference signal PRS resource and a second SL PRS resource; and according to the multiplexing mode, multiplexing the first SL PRS resource and the second SL PRS resource, and sending the SL PRS. By adopting the method, the SL PRS can be transmitted through resource multiplexing, so that the transmission reliability of the SL PRS is ensured, and the problems of long consumed time and increased system overhead caused by resource selection again are avoided.

This invention relates to the field of smart meter communication data acquisition technology, and discloses a method for anti-interference data acquisition in smart meter communication based on multi-carrier modulation technology. The method includes using multi-carrier modulation to perform frequency division processing on the signal during data transmission, combining channel state perception and dynamic subcarrier allocation strategies to avoid interference frequency bands in real time, and enhancing data robustness through time-frequency joint coding. This application can effectively suppress narrowband interference and impulse noise, improving the communication reliability and data acquisition accuracy of smart meters in complex electromagnetic environments.

The invention relates to the technical field of pharmaceutical engineering, and discloses biomedical sampling equipment which comprises a mounting box, a hose fixedly connected to the inner surface of the mounting box, and a turntable arranged in an inner cavity of the mounting box, the sampling mechanism comprises a sealing assembly which is matched with the hose to prevent liquid medicine leakage in the sampling process, a mounting frame which is fixedly connected to the outer surface of the mounting box, a driving assembly which is matched with and drives the extrusion roller to extrude the hose, and a guide assembly which is matched with and changes the extrusion direction of the extrusion roller. By means of the sealing assembly, it can be ensured that the connector of the hose and the connector of the sampling bag are tightly connected in the sampling process, and the connector of the hose and the connector of the sampling bag can be automatically closed after sampling is completed; through direct cooperation of all parts in the driving assembly, the guiding assembly and the positioning assembly, rotating power can be provided for the rotating disc and the extrusion roller, the rotating direction of the rotating disc and the extrusion roller can be flexibly adjusted, and deviation of the rotating direction of the rotating disc and the extrusion roller is effectively prevented.

The invention relates to a multi-pin chip capacitance testing device and system. The multi-pin chip capacitance testing device comprises a plurality of relay modules and a driver, a first end of each relay module is used for connecting a pair of to-be-tested pins of a to-be-tested chip capacitor, and a second end of each relay module is used for connecting an input end of an LCR instrument; when a specified target to-be-tested pin is tested, the driver controls the relay module corresponding to the target to-be-tested pin to be closed and controls the relay modules corresponding to other to-be-tested pins to be disconnected. The to-be-tested pin is switched by controlling the on-off of the relay module, and compared with an existing pin switching mode based on a movable sliding table, the switching speed is higher, operation is more convenient, the control difficulty is lower, and the testing efficiency is higher.

This invention belongs to the field of mine safety monitoring technology, specifically involving an intelligent management system based on miners' positioning data processing. The system includes a wearable precision inertial measurement device, a multi-source data fusion gateway, an underground wireless transmission network, a biomechanical feature extraction server, a behavioral quality evaluation management platform, and a multi-dimensional early warning terminal. The wearable device collects high-frequency motion vector data of miners in real time, performs preliminary noise reduction using the gateway, and the server establishes a gait cycle segmentation model to accurately extract gait feature parameters such as stride length, ground contact time interval, and body center of gravity oscillation frequency. This invention realizes a shift from simple spatial location monitoring to in-depth monitoring of biological signals and behavioral quality, filling the monitoring blind spots caused by passive displacement and improving the proactiveness of mine risk early warning and the accuracy of safety supervision.

The application provides a power control parameter determination method and device and a terminal device, and relates to the technical field of communication. The method is executed by a terminal device and comprises: determining a control parameter for power control of a physical uplink control channel (PUCCH) according to a first parameter; wherein the first parameter is the number of bits of a hybrid automatic repeat request acknowledgement (HARQ-ACK) that is bundled in the case of multiple physical downlink shared channels (PDSCHs) being scheduled by one downlink control information (DCI). The above scheme improves the acquisition scheme of the control parameter for power control of the PUCCH in the case of multiple PDSCH transmission scheduling, and can save the power consumption of the terminal for signal transmission while maintaining transmission reliability.

The invention relates to the technical field of network communication optimization, and provides a communication method and device. The method comprises the steps that under the condition that it is monitored that data to be sent exist, a first serial receiving and sending module in first equipment is started, first notification information is sent to second equipment, the first notification information is used for indicating to start a second serial receiving and sending module in the second equipment, and under the condition that second notification information sent by the second equipment is not received, the second serial receiving and sending module in the second equipment is started. And storing the received data in a first cache unit in the first device according to the second notification information, the second notification information being used for indicating that the second serial transceiver module is started, and sending the received data and / or newly received data to the second device when the second notification information sent by the second device is received. According to the communication method provided by the invention, the received data is temporarily stored through the first cache unit, parallel processing of data buffering and link establishment is realized, and the problem of data loss caused by unready opposite equipment is effectively avoided.

The utility model discloses a novel EMS energy management system and a communication system, the EMS energy management system comprises a plurality of energy storage containers, a control unit and an EMS, each energy storage container is internally provided with an energy storage module, a plurality of energy storage converters, a first unit switch and a second unit switch, one energy storage container is defined as a first energy storage container, a first unit switch of the first energy storage container is connected with first unit switches of other energy storage containers, and a second unit switch of the first energy storage container is connected with second unit switches of other energy storage containers; the control unit comprises a first controller, a second controller, a main network switch and a standby network switch; and the EMS is connected with the main network switch and the standby network switch. Wiring is convenient, and communication is stable.

The invention discloses a low peak-to-average ratio LACO-OFDM method and system based on constellation expansion, and the method comprises the steps: executing # imgabs0 # point inverse frequency domain transformation operation on a frequency domain signal, generating a time domain signal with # imgabs1 # sampling time, repeating the time domain signal for # imgabs2 # times in a time domain, and generating a time domain signal # imgabs4 # with # imgabs3 # sampling time; and carrying out constellation expansion on a # imgabs6 # subcarrier bearing symbol of the # imgabs5 # layer of the LP-LACO-OFDM signal, so as to obtain a time domain signal after the LP-LACO-OFDM constellation expansion is carried out on the # imgabs6 # subcarrier bearing symbol of the # imgabs5 # layer of the LP-LACO-OFDM signal. And performing digital-to-analog conversion on the time domain signal after the LP-LACO-OFDM constellation expansion, and inputting the time domain signal to an LED to generate an emission optical signal. Compared with the traditional LACO-OFDM method, the method disclosed by the invention has the advantages that the PAPR can be effectively reduced, so that the capability of resisting nonlinearity of the LACO-OFDM method is improved, and the transmission reliability of the LACO-OFDM method under the nonlinearity condition is ensured.

The utility model discloses a kind of reel transmission structures, it is related to reel transmission technical field, including driving sprocket and driven sprocket, the driving sprocket and driven sprocket are arranged in parallel, driving sprocket and driven sprocket are tensioned and provided with synchronous belt, the side coaxial fixed with one reel of driving sprocket, the same side coaxial fixed with two reels of driven sprocket, the wheel rim of one reel and two reels is evenly distributed with pin column convex column, the upper level of one reel and two reels is provided with flow channel plate, the flow channel plate is fixed in machine tool workstation by bolt mounting mode. The utility model is ensured that product can be strictly conveyed according to preset path and position by the cooperation of pin column convex column and product round hole, realizes accurate step type conveying.

The invention discloses a water-land-air three-dimensional security early warning system for a near-water key area, and the system comprises a commanding and dispatching subsystem, a comprehensive display subsystem, a data processing subsystem, a water area warning subsystem, a land area warning subsystem, and an airspace warning subsystem. The water area warning subsystem, the land area warning subsystem and the airspace warning subsystem detect and track threat targets from a water area, a land area and an airspace in real time and transmit results to the data processing subsystem, and the data processing subsystem performs fusion processing on target information and transmits the results to the comprehensive display subsystem. After pre-judging, the threat object is sent to the commanding and dispatching subsystem by the operator on duty, and the commanding and dispatching subsystem issues a commanding and dispatching command to deal with the threat object. Through effective sensing and detection, information is transmitted and fused to a command and control center, the functions of sensing, detecting and pre-warning threat invasion targets are achieved, and powerful technical guarantee is provided for safety protection of near-water key areas.

The invention discloses a method and a system for reliable communication between transformer substation monitoring and a dispatching master station. The method comprises the following steps: establishing a hierarchical multi-connection communication link channel for communication between two monitoring backgrounds of a transformer substation and a dispatching master station system through respective corresponding telecontrol devices based on a dual-computer dual-network redundant communication architecture, and incorporating the hierarchical multi-connection communication link channel into a link pool for management; the two monitoring backgrounds adopt a dual-network redundant bus communication mode, determine a main-standby state according to a dual-machine main-standby mechanism of the monitoring system and notify the telecontrol device; the telecontrol device only forwards a message command issued by the scheduling master station system to one monitoring background for processing according to a telecontrol message command forwarding strategy, and forwards a result returned by the monitoring background to the scheduling master station system; and the telecontrol device forwards the file data of the monitoring backgrounds issued by the scheduling master station system to the two monitoring backgrounds at the same time so as to monitor a file data processing strategy for processing, and selects one monitoring background to return a result to forward the scheduling master station system according to a telecontrol file data processing result response strategy. Reliable communication between transformer substation monitoring and a dispatching master station can be realized.

The invention relates to the Internet of Things technology, in particular to an Internet of Things data interaction method and system based on MQTT and a readable storage medium, and the Internet of Things data interaction method based on MQTT comprises the steps that a device end reports a file transmission request to a cloud platform end through an MQTT file uploading theme, at least assigning an initial fragment size, a total file size and a verification value in the file transmission request; when the cloud platform end monitors the file transmission request, the cloud platform end verifies the device end and then issues a fragment transmission strategy to the device end through the MQTT dynamic theme, and the fragment transmission strategy at least comprises the fragment size dynamically adjusted by the cloud platform end according to the network condition; the device end uploads file fragments to the cloud platform end according to a fragment transmission strategy issued by the cloud platform end and a fragment index sequence, and informs the cloud platform end after transmission is completed; and the cloud platform end verifies the transmission condition after receiving the transmission completion notification of the equipment end, and returns a transmission result to the equipment end through the MQTT response theme.

The present disclosure relates to the technical field of wireless communications, and relates to a licensed and unlicensed controller LUC, a method for traffic control, a computer readable storage medium and an electronic device, the licensed and unlicensed controller LUC being configured to coordinate different traffic load transmissions in a multi-connection mode for a user equipment (UE) based on a real-time measurement report. The controller LUC of the present disclosure can support licensed and unlicensed multi-connection and spectrum aggregation use in cooperation with data packets of an unlicensed network and a licensed network.