20results about How to "Guarantee transmission reliability" patented technology

The utility model provides a header transmission system which comprises an ear picking unit, a driving shaft and an input idler shaft. The ear picking unit comprises stem pulling rollers, a flail knife and a seedling pulling chain, the heading direction of the harvester is taken as the front, the stem pulling rollers comprise a first stem pulling roller arranged on the left side and a second stem pulling roller arranged on the right side, and the flail knife is arranged on the right side of the second stem pulling roller; the seedling pulling chain comprises a first seedling pulling chain arranged above the first stem pulling roller and a second seedling pulling chain arranged above the second stem pulling roller; an input gear arranged on the driving shaft is meshed with an input idle gear arranged on the input idle gear shaft; the transmission unit comprises a first gear, a stem pulling roller driving mechanism, a flail knife driving mechanism and a reel chain driving mechanism, the transmission unit is connected with the input gear and the ear picking unit, the input gear inputs power to the transmission unit, and then the stem pulling roller, the flail knife and the reel chain are driven to work. The header transmission system and the harvester header are simple in structure and capable of stably and efficiently harvesting crops.

This invention discloses a miniature intelligent meteorological monitoring terminal and system, including several miniature intelligent meteorological monitoring terminals, an edge computing gateway, a cloud service platform, and a user operation terminal. The miniature intelligent meteorological monitoring terminals wirelessly connect to the edge computing gateway. The advantages of this invention are: by integrating multiple sensors such as temperature and humidity, air pressure, ultrasonic wind speed and direction, and optical rainfall into a sealed housing, and configuring a hidden acquisition probe and a rainproof and dustproof shielding structure, the measurement drift caused by rain and dust contamination of the sensors is effectively avoided. At the same time, the overall system achieves an IP67 waterproof and dustproof rating, adapting to a wide temperature range of outdoor environments from -40℃ to 85℃; it uses an ultra-low power microcontroller with an edge data processing program to realize data filtering calibration, anomaly identification, and local early warning; combined with timed sleep wake-up and solar self-charging power supply, it significantly reduces terminal power consumption and maintenance costs, meeting the long-term continuous monitoring needs in environments without electricity or network.

The utility model relates to lathe technical field provides a good micro - numerical control lathe of chip removal, solve the problem that lathe horizontal work surface falls the chip not easy clearance and the chip falls into the guide rail and influences the problem of tool rest feed. Scheme, the work surface of bed body is inclined surface, the lathe still includes: X axle assembly, include: a) X axle bottom plate, set up on the work surface of bed body, have X axle guide rail on it, b) workbench, slide connection in X axle guide rail, its upper portion is fixed with tool rest, c) first linear drive assembly, drive workbench and move along X axle direction, d) X axle protection assembly, install in workbench X axle direction both ends, protect X axle guide rail, Z axle assembly, include: a) Z axle guide rail, set up in the work surface of bed body, X axle bottom plate bottom slide connection in Z axle guide rail, b) second linear drive assembly, drive X axle bottom plate and move along Z axle direction, c) Z axle protection assembly, install in X axle bottom plate Z axle direction both ends, be used for protecting Z axle guide rail.

The utility model discloses a double-clamping turnover device for a carrier, which belongs to the technical field of automation equipment and comprises a vertical plate, a supporting bottom plate is fixedly connected to the bottom of the front side of the vertical plate, a reinforcing rib is fixed between the vertical plate and the supporting bottom plate, and a turnover module is mounted at the rear end of the middle of the supporting bottom plate. By means of the modular design, rapid clamping, multi-angle overturning and accurate positioning of a carrier are achieved, meanwhile, the multi-angle overturning device is suitable for workpieces of different specifications, the flexibility of a production line is improved, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. And the production efficiency is improved.

The invention provides a retransmission data processing method and device, and the method comprises the steps: receiving initially transmitted coding block data, recording the position information of a coding block with a wrong initial interpretation code, and storing a decoding result of the coding block with a correct initial interpretation code; and when retransmission corresponding to the initial transmission occurs, calculating time domain and frequency domain resources and pilot frequency resources corresponding to the coding block of the initial interpretation code error according to the position information of the coding block of the initial interpretation code error and configuration information of retransmission, so that only time domain and frequency domain resource data and pilot frequency data corresponding to the initial interpretation code error are transmitted when data are transmitted forwards. The retransmission efficiency can be improved, the transmission reliability is guaranteed, and the processing performance is optimized.

The application discloses a kind of IEC104 protocol fast analysis device and method based on P4 programmable switch, device includes P4 programmable switch main body, protocol analysis unit, rule configuration unit, matching execution unit and unpacking unit;Hardware processing pipeline is equipped in P4 programmable switch main body, protocol analysis unit, matching execution unit, unpacking unit are sequentially arranged in the corresponding position of flow line and are connected, and rule configuration unit is connected with main body control plane in communication.This device cooperates through each unit, solves the drawbacks that existing software analysis delay is high, throughput is low, operation and maintenance are complex and traditional switch cannot be deeply analyzed, without additional deployment host, reduce cost and operation and maintenance difficulty, programmable and adapt to multiple business scenarios, meet the real-time performance, reliability requirements of new power system to communication.

This invention relates to the field of wireless networking technology, specifically to a multipath anti-interference method for decentralized broadband ad hoc networks based on random network coding. It includes: relay nodes scanning the wireless spectrum to generate a network channel quality spectrum; generating network compensation commands based on forward link loss rate; responding to the commands by performing network packet reassembly on the basic network payload using the local network topology vector to generate link transmission compensation packets; executing a fluid routing distribution strategy based on channel quality to push the aggregated wireless relay data streams in parallel to the multipath next-hop nodes; and intercepting automatic retransmission requests based on the feedback effective arrival rank. This invention, through deep coupling of network layer topology reassembly and multipath routing scheduling, achieves proactive compensation for link loss and low-latency transmission in complex electromagnetic environments, significantly improving the throughput and reliability of ad hoc networks.

The present application belongs to the technical field of forest ecological monitoring, and particularly relates to a multi-dimensional forest ecological self-adaptive monitoring coordination method based on star flash technology, which comprises the following steps: constructing an underground-ground-forest canopy three-layer star flash isomerization self-organizing network, acquiring multi-dimensional ecological sensing data and link quality parameters through the network; evaluating the forest environment shielding level and dividing the link quality classification based on the link quality parameters, and adaptively and dynamically adjusting according to the classification results; based on the stable link after regulation and control, forwarding the underground node data to the forest canopy gateway through the ground node relay to form a three-dimensional coordinated monitoring data set carrying a unified time stamp; when there is no remote network coverage, local caching is performed, and after the patrol mobile terminal enters the near field communication range, it is automatically woken up and bulk data is transmitted. The present application solves the problems of poor wireless communication stability, single monitoring dimension and difficult data return in the complex forest environment, and is suitable for long-term unattended ecological monitoring scenes in the wild.

The utility model provides a kind of anticorrosive and antirust round link, it is related to chain technical field, including ten cylinders, first connecting piece is equipped between the both ends of adjacent cylinder, second connecting piece is equipped between adjacent first connecting piece, the side wall of first connecting piece and close to both ends are all set with second ring groove, bearing ring is rotatably connected with bearing ring by being embedded in the inside of second ring groove, sealing ring pad is embedded in the inside of second ring groove and close to bearing ring side, the inside of cylinder is equipped with fixed cylinder.The utility model, chain each component surface is coated with anticorrosive and antirust layer, cooperate sealing ring pad, convex cylinder and other structures, effectively isolate moisture, corrosive medium, still can long-term stable operation in humid, acid-base, salt fog environment, greatly prolong service life, by screw rod, protruding piece, embedded hole and other designs, without special tool, damaged chain link can be quickly disassembled and replaced, local maintenance cost is low, shorten equipment downtime, improve operation efficiency.

The invention discloses an operating mechanism of an isolating switch and a production process thereof. The structure comprises a shell, a mechanism bracket and a connecting rod structure. An assembly interval is formed between the upper and lower end surfaces of the mechanism bracket. The positioning rocker arm comprises a rocker arm leg and a rocker arm beam. The spacing between the two rocker arm legs is adapted to the assembly interval of the mechanism bracket and the rocker arm legs are rotatably connected to the mechanism bracket. A rack bracket is installed on one side of the mechanism bracket. The invention realizes stable state switching by driving a main shaft through the matching between a rack and two driving gears, the matching between the rack and the positioning rocker arm, and the driving gear, the linkage gear and the linkage shaft, thereby ensuring the transmission reliability and rotation synchronization of the main shaft and the rotating shaft and the action performance of the operating mechanism. At the same time, the operating mechanism of the invention has a simple structure, a reasonable layout and good reliability.

The invention discloses an axial vibration isolation device of an underwater glider attitude adjusting motor based on an acoustic metamaterial, and belongs to the technical field of underwater equipment noise reduction, and the axial vibration isolation device comprises a vibration isolation piece made of an elastic damping material, and a periodic geometric structure is arranged on a body of the vibration isolation piece and is used for forming an elastic wave band gap for a vibration signal of a specific frequency band; the structural supporting piece is used for installing and supporting the vibration isolation piece; and the flexible transmission part is used for being connected with the transmission shaft and has a secondary vibration absorption function. The vibration isolation piece, the structure supporting piece and the flexible transmission piece are integrated, and efficient vibration isolation is achieved through the band gap characteristic of the vibration isolation piece and cooperative dissipation of the flexible transmission piece on vibration energy. The device is compact in structure, has the functions of torque bearing and vibration reduction, can effectively suppress vibration at the frequency band of 600Hz-1500Hz through parameterization design, has the maximum deformation not exceeding 0.5 mm, is suitable for the axial vibration isolation requirements of posture adjusting motors of underwater gliders of multiple models, and improves the signal acquisition precision of an acoustic sensor.

This invention discloses a mobile data communication service system, specifically relating to the field of mobile communication resource scheduling technology. It addresses the problem of transmission instability caused by existing wireless resource scheduling methods that focus only on instantaneous channel states while neglecting the continuous transmission requirements of service flows when dealing with persistent services. The system employs a system where: an information acquisition module acquires service data flow characteristic parameters and instantaneous channel state information; a service parsing module identifies persistent service data flows and parses the structure of service data units, assessing the strength of internal logical dependencies; a key marking module marks data units with internal logical dependencies exceeding a threshold as key service data units; a feature analysis module constructs a channel state fluctuation propagation path diagram and extracts multi-scale entropy features; an impact assessment module evaluates the degree of transmission impact through cross-point analysis; and a policy execution module generates a resource allocation policy and allocates wireless resources to persistent service data flows, achieving coordinated optimization of service requirements and channel states.

This application provides a TSN system for nuclear power environments. The TSN system includes a TSN switch, on which an environmental monitoring module, a security authentication module, and a scheduling module are deployed. The environmental monitoring module is configured to: monitor the radiation level of the communication environment and send the radiation level data to the security authentication module and the scheduling module; the security authentication module is configured to: perform a security check on the received information; if the security check passes, obtain the security level of the information based on the security level of the terminal device sending the information; select a corresponding encryption algorithm to decrypt the information based on the radiation level to obtain the encapsulated service instructions; the scheduling module is configured to: perform deep packet inspection on the service instructions to obtain the service type matching the service instructions; allocate the service priority of the information corresponding to the service instructions based on the timeliness level of the service type; and map the information to the output queue based on the radiation level, the service priority of the information, and the security level.

A driving mechanism of a longitudinal translation opening bridge comprises a driving track, a chain driving device, a fixed bridge frame, a mobile bridge frame and a driving slider frame, wherein the driving track is fixed on the fixed bridge frame, the chain driving device comprises a reduction motor with an output shaft and a chain track, the output shaft of the reduction motor is provided with a sprocket, the sprocket is meshed with the chain track, the reduction motor is fixed to the driving slider frame, the chain track is fixed to the fixed bridge frame, the upper end of the driving slider frame is suspended on the driving track through a horizontal guide mechanism and a vertical guide mechanism, the lower end of the driving slider frame is connected to the mobile bridge frame through a vertical large pin shaft; and a synchronous driving controller is included, which is electrically connected to the reduction motor. The invention drives the driving slider frame and the mobile bridge frame to perform longitudinal translation along the driving track through the meshing action of the sprocket and the chain track, thereby realizing the telescopic opening of the lower bridge deck, and the operation is stable and reliable, the adaptability to bridge deformation is strong, and the control accuracy is high.

The utility model discloses a breaker arc extinguish chamber fracture size detection device, belonging to the breaker arc extinguish chamber field, a transmission assembly of the device connects a first flange and a second flange through a screw rod, the first flange is connected with a fixed support of an arc extinguish chamber, a screw rod is inserted in a thread structure of the second flange, and the dimension of the fracture of the arc extinguish chamber is detected by rotating the screw rod. The main pull rod can be driven to do linear motion so as to realize the opening and closing actions of the moving contact and the static contact; an indication loop is arranged at each fracture of the displacement monitoring assembly, a moving contact and a static contact serve as switches of the indication loops, the indication loops are connected with indication lamps, and a displacement sensor is arranged on the transmission crank arm; when the rigid closing size is detected, the main pull rod is driven to move through the transmission assembly, and when the main pull rod moves to the indicating lamp in the indicating loop corresponding to a certain fracture and is turned on, the displacement value of the displacement sensor is recorded, namely the rigid closing size corresponding to the fracture. The device is simple in structure and principle, convenient to operate and capable of accurately measuring the rigid convergence size.

The operating mechanism structurally comprises a shell, a mechanism support and a connecting rod structure, an assembly interval is formed between the upper end face and the lower end face of the mechanism support, a positioning rocker arm comprises rocker arm legs and a rocker arm beam, and the distance between the two rocker arm legs is matched with the assembly interval of the mechanism support. The rack support is mounted on one side of the mechanism support, and the rack support is mounted on the other side of the mechanism support; according to the invention, through the cooperation between the cooperation rack and the two driving gears, the cooperation between the cooperation rack and the positioning rocker arm, and the driving gears, the linkage gear and the linkage shaft, the main shaft is driven to realize stable state switching, so that the transmission reliability and rotation synchronism of the main shaft and the rotating shaft are ensured, and the action performance of the operating mechanism is ensured; meanwhile, the operating mechanism is simple in structure, reasonable in layout and good in reliability.

The invention discloses a civil engineering material carrying AGV trolley, and relates to the technical field of automatic guided vehicles. The guide part is arranged at the front end of the bearing table, and the crawler walking parts are arranged at the four corners of the bottom of the bearing table. The crawler walking part comprises a support fixed to the side wall of the bottom of the bearing table and first supporting arms arranged on the two sides of the bottom of the support in an inclined mode, second supporting arms are arranged at the ends of the first supporting arms, the two ends of each second supporting arm are rotationally connected with supporting walking wheels through wheel shafts, and a driving wheel is further arranged on one side of the support. According to the AGV trolley, the crawler walking parts are arranged and conduct walking supporting through the crawler belts, so that the AGV trolley can be suitable for the road surface condition of a construction site, the four sets of crawler walking parts are arranged, each set of crawler walking parts is independently arranged, and therefore on one hand, the escape capacity of the whole AGV trolley is improved, and on the other hand, the functions of pivot steering and the like can be achieved; and the reliable transportation capacity on the construction site pavement is improved.

The invention relates to the technical field of optical communication, in particular to an OTN (Optical Transport Network) network transmission method and device based on dynamic bandwidth adjustment, which converts an OTN rigid pipeline into an elastic intelligent pipeline, remarkably improves the bandwidth resource utilization rate, realizes the millisecond-level agile adjustment of bandwidth by automatically sensing the change of service load, and improves the bandwidth transmission efficiency. The on-demand instant supply requirement of scenes such as cloud service and 5G slicing is met, the service response time is greatly shortened, the rate and power linkage mechanism effectively reduces port power consumption, the green communication development target is met, the technical scheme is achieved in a standard OTN frame structure, existing equipment and an operation and maintenance system are perfectly compatible, smooth network evolution is supported, and the method is suitable for large-scale popularization and application. The multi-time-scale intelligent decision-making architecture not only can quickly deal with burst traffic, but also can realize traffic shaping through a prediction algorithm to avoid link oscillation, and the overhead reconstruction method realizes accurate clock synchronization through in-band signaling to continuously guarantee transmission reliability in the whole dynamic adjustment process.

The invention discloses a multi-mode clutch-switching-free electro-hydraulic coupling type stepless speed change device which comprises a power source transmission line coupling unit, an engine transmission line coupling unit, an engine transmission line coupling unit and an engine transmission line coupling unit. The output end transmission line coupling unit comprises a hydraulic stepless transmission line and a mechanical-electric-hydraulic composite transmission middle line arranged at the bottom of the hydraulic stepless transmission line; mode switching of the engine transmission route, the hydraulic stepless transmission route and the mechanical-electric-hydraulic composite transmission intermediate route is achieved through a synchronizer. The multi-mode clutch-free double-gear synchronizer has the beneficial effects that through the multi-mode clutch-free switching electric drive and hydrostatic transmission coupling design, synchronizer double-gear switching is achieved, the electromechanical-hydraulic integration level is simplified, and the control difficulty is lowered. Multiple transmission modes and gear combinations are set, the adaptability of the transmission is improved, the situation that input shunting and output shunting of the same planet row coexist in a specific mode can be formed, and working points of an engine and a motor generator can be changed so as to improve the dynamic property under different driving working conditions and operation working conditions.

The present invention provides a joint optimization method for Internet of Vehicles resource allocation based on a dominance strategy, comprising: firstly, modeling the resource allocation problem as a multi-agent deep reinforcement learning problem based on a continuous action space, constructing a high-speed dynamic Internet of Vehicles environment model, taking maximizing the total throughput of the vehicle-to-infrastructure communication link and ensuring the high reliability transmission of the vehicle-to-vehicle communication link as the optimization goal, and using the improved MADDPG‑A2C algorithm to optimize the system performance. The results show that compared with the traditional resource allocation method, the algorithm shows certain improvements in key performance indicators such as throughput, latency, and spectrum utilization. At the same time, compared with the MADDPG algorithm, the improved algorithm has the characteristics of strong stability, high sample efficiency, and wide applicability.