43results about How to "Stable and efficient transmission" patented technology

The invention discloses a remote video monitoring data transmission method, and the method comprises the steps: collecting visual video information through a robot camera, and transmitting the visual video information to a remote power plant monitoring center through a HDMI interface, an encoder, a 5G-CPE, a decoder and other links. The 5G-CPE uses MEC, 5G slicing and SRT technologies to adjust resource allocation according to network conditions and requirements, and defines configuration slices and priorities. A network monitoring component is deployed to monitor slice loads in real time, a load threshold value is set for each slice, and a resource adjustment strategy is triggered when the loads exceed the threshold values. And resources are dynamically reallocated after analysis and evaluation, so that sufficient and optimized utilization of high-load slice resources is ensured. Performance is continuously monitored and feedback adjustment is performed, network adaptability and flexibility are improved, key video streams are ensured to be transmitted preferentially, and power plant inspection requirements are met.

The invention discloses a performance detection system of a photovoltaic power generation system, which relates to the technical field of photovoltaic power generation and comprises a data acquisition module, a data transmission module, a data analysis and processing module and a monitoring and display module. The data acquisition module is used for acquiring key parameter data of the photovoltaic power generation system, collecting analog signals and converting the analog signals into digital signals, and the data comprises the steps of measuring the surface illumination intensity of a photovoltaic module, monitoring the temperature of the photovoltaic module and measuring the output current and voltage of a photovoltaic array. According to the performance detection system of the photovoltaic power generation system, the data acquisition module can accurately measure the illumination intensity and temperature of a photovoltaic module and the output current and voltage parameters of a photovoltaic array, analog signals are converted into digital signals, basic data are provided for follow-up processing, the data transmission module supports multiple transmission modes, and the performance of the photovoltaic power generation system is improved. Stable and efficient transmission between the data acquisition equipment and the upper computer is ensured, and operation and maintenance personnel can know the system operation condition and historical data conveniently.

The invention relates to the technical field of live broadcast systems, and discloses a multi-scene live broadcast system, which comprises an acquisition module, an encoding module, a transmission module, a processing module, a storage module, a playing module and an interaction module, and is characterized in that the acquisition module, the encoding module, the transmission module, the processing module, the storage module, the playing module and the interaction module are arranged; the system can meet the requirements of various scenes such as live broadcast with goods, online education, entertainment live broadcast and the like, provides more flexible and diversified live broadcast services, adopts advanced coding technologies such as an AAC encoder and an H.264 encoder, carries out quantization processing, improves the compression efficiency and transmission stability of audio and video data, improves the quality of live broadcast pictures and sounds, and improves the user experience. The problems of jamming, distortion and the like are reduced; the interactive experience can be enhanced, the interactive experience between the users is enhanced through the arrangement of the interactive module, the users can participate in live broadcast through various interactive modes, and the participation sense and the satisfaction degree of the users are improved.

The utility model discloses a three-phase copper bar assembly, an electric drive assembly and a vehicle, the three-phase copper bar assembly comprises a fixed seat, an insert, a first copper bar, a second copper bar and a fastener, a matching surface is formed on the fixed seat, and a mounting hole is formed on the matching surface; at least part of the insert is arranged in the mounting hole; a first matching hole is formed in the first copper bar; a second matching hole is formed in the second copper bar; the fastener sequentially penetrates through the second matching hole and the first matching hole and is matched with the insert; wherein a flanging part extending outwards in the radial direction is formed on the peripheral surface of one end of the insert, at least part of the flanging part is arranged in the mounting hole, and the flanging part is in contact fit with the first copper bar. According to the three-phase copper bar assembly provided by the utility model, the flanging part is arranged on the insert, so that the contact area between the insert and the first copper bar is increased, the connection stability is effectively improved, the stress is dispersed, and the durability and the reliability of the three-phase copper bar assembly are improved.

The invention discloses follow-up welding forming clamping equipment for inner and outer circumferential welds of a cylinder, and belongs to the field of welding equipment. The welding forming clamping equipment comprises a base, a lower pressing mechanism, an upper pressing mechanism, a lifting driving mechanism, a turn-over driving mechanism, a turn-over seat, a rotary driving mechanism and a clamping positioning mechanism. The holding and clamping positioning mechanism is used for supporting the thin-wall barrel, and self-deformation of the barrel is avoided; the upper pressing mechanism and the lower pressing mechanism are matched to clamp and fix all the to-be-welded products, the positioning precision and the clamping stability of the parts are guaranteed through the ring body abutting rolling wheels, and circular seam welding deformation can be reduced easily; besides, the upper and lower pressing mechanisms are used for driving the cylinder part to perform rotary welding, the turn-over mechanism is used for driving the cylinder part to perform turn-over welding, one-time welding forming of inner and outer welding seams at the two ends of the cylinder part can be achieved through one-time clamping, the welding production efficiency is improved, the welding precision is greatly improved, and the welding reject ratio is effectively reduced; and the economic benefits of enterprises are improved.

The invention discloses a road quality automatic detection method and system based on object recognition, and the system comprises an image collection module which comprises a plurality of devices and is capable of adjusting parameters and collecting road images; the data transmission module is stable in transmission and supports wired and wireless modes; the image preprocessing module is used for denoising, enhancing contrast and correcting distortion; the object recognition module is used for recognizing a road problem by using a CNN model; the quality evaluation module is used for evaluating according to standards and formulas; the storage and display module is used for storing data and displaying results, and all the modules cooperate to guarantee detection. The road quality can be efficiently and accurately detected, manual errors are reduced, images can be rapidly collected and processed, various road diseases can be recognized, the quality can be automatically evaluated, data storage and display are convenient, safe and stable data transmission can be guaranteed, and road maintenance and management intelligentization is facilitated.

The invention relates to the technical field of online education data processing, and particularly discloses an information management method and system based on an online education system, and the method comprises the steps: obtaining a corresponding image collection quality evaluation factor through analyzing the image collection information of teaching equipment which the online education system belongs to; therefore, the image acquisition information of the teaching equipment to which the online education system belongs can be managed and fed back, and the audio acquisition quality evaluation factor of the teaching equipment to which the online education system belongs is obtained by analyzing the audio acquisition information of the teaching equipment to which the online education system belongs. Therefore, the audio acquisition information of the teaching equipment to which the online education system belongs can be managed and fed back, and finally the network quality index of the teaching network to which the online education system belongs is evaluated, so that the initiative and timeliness of teaching equipment management are enhanced, the overall performance of the online education system is improved, and the user experience is improved. And a solid foundation is laid for providing a high-quality online teaching environment.

The invention discloses a side driving type turning chain plate which comprises an upper cover and further comprises screws, rails and keel chain wheels, the screws are arranged below the upper cover, clamping grooves used for limiting and lapping the upper cover are formed in the surfaces of the screws, the screws are sequentially connected end to end, the rails are symmetrically arranged below the upper cover, and the keel chain wheels are arranged on the rails. The spiral conveying device is characterized in that the spiral conveying device is provided with a track, the inner wall of the track is in rolling connection with the two sides of the spiral, the spiral is limited and guided, the keel chain wheels are connected between the adjacent spiral side walls in a meshed mode, and the spiral can be driven to move through rotation of the keel chain wheels. And in addition, transmission is more stable and efficient, the high-requirement food industry processing requirement can be met, the turning radius is smaller, station transfer can be carried out in a food production workshop, moving operation is smoother, and quality and reliability are ensured.

The invention provides a Bluetooth-based tire pressure management system controlled by a remote communication terminal. The Bluetooth-based tire pressure management system comprises a sensor, a controller and a receiver, the sensor is a Bluetooth tire pressure sensor which does not participate in network management, the receiver is a Bluetooth module on Tbox hardware, and the controller is a Tbox built-in chip; according to the system, the Tbox is used for replacing a traditional TPMS controller and a receiver, equivalently, one controller is saved, and the hardware cost of the whole vehicle is reduced; meanwhile, IDs of the Bluetooth tire pressure sensors are in one-to-one correspondence with vehicle tires and interact with a vehicle-mounted system, a driver can check corresponding information of the tires on an instrument panel or a vehicle machine display screen, when the tires are abnormal, the driver can be reminded, and the problem that in the prior art, the specific tires with faults cannot be accurately detected is solved; the safety of the vehicle is improved; the problems that a commercial vehicle is too long and wireless signals are not good are solved.

The present invention belongs to the technical field of clothing manufacturing equipment, and in particular to a dust removal device for textile machinery and a method of using the same, comprising a clothing manufacturing machine, a top plate fixed on the upper surface of the clothing manufacturing machine, and a dust cover screwed to the surface of the top plate, the surface of the top plate being screwed to a dust removal fan, and the interior of the dust cover being provided with a dust removal mechanism. The device is provided with a dust removal mechanism, and can intercept and filter the generated cotton wool and fine fibers as well as dust in the air, thereby greatly improving the working environment and reducing the dust content in the air. The device can automatically clean the surface of the dust filter element to ensure the filtering effect of the dust filter element, and avoid dust backflowing back into the work workshop to cause pollution to the working environment, thereby creating a cleaner, healthier and more comfortable working environment for workers, helping to improve the work enthusiasm and work efficiency of workers, and reducing health problems such as respiratory diseases caused by dust.

The invention provides a square inner rotor axial flow fan, and belongs to the technical field of fans. The axial flow fan solves the problems that due to the fact that the shaft connecting part of an impeller and a motor of an existing axial flow fan is in high-speed operation for a long time, the connecting section of the impeller and the motor is abraded, transmission stability is affected, and the connecting section is prone to cracking. The square inner rotor axial flow fan comprises an impeller composed of blades and a shaft seat, a machine shell is arranged outside the impeller, the end of the shaft seat is provided with an inner threaded hole and connected with a connecting sleeve in a threaded mode, a motor with a machine shaft is further arranged in the machine shell, and the connecting sleeve is connected with the machine shaft through a long-rod nut and screw assembly. The device has the advantages of being easy to disassemble and assemble, efficient and stable in transmission and capable of preventing cracking.

The utility model provides a dust falling device for constructional engineering. The constructional engineering dust falling device comprises a base, a rotating disc is rotationally arranged above the base, a box body is arranged at the top of the rotating disc, a stirring rod is rotationally arranged in the box body, a limiting ring is arranged above the box body, and a plurality of spraying pipes are arranged on the two sides of the box body respectively. The building engineering dust falling device has the advantages of being movable, fixable, wide in dust falling range, high in controllability and high in dust falling efficiency.

The invention relates to the technical field of electrical auxiliary materials, and particularly discloses a memory alloy heat dissipation coating and a preparation method thereof. A memory alloy heat dissipation coating comprises a graphene infrared radiation layer and a memory alloy dynamic convection heat dissipation material distributed on the graphene infrared radiation layer, and the graphene infrared radiation layer is prepared from the following raw materials in parts by weight: 35-45 parts of elemental carbon powder; 10-14 parts of alumina powder; 4-6 parts of a water-based adhesive; 30-40 parts of a water-based solvent; 6-10 parts of a filler; 1-3 parts of an antioxidant; the memory alloy dynamic convection heat dissipation material comprises sheet-shaped memory alloy heat dissipation particles, and the sheet-shaped memory alloy heat dissipation particles are prepared from the following raw materials in parts by weight: 65-75 parts of copper; 8-12 parts of neodymium iron boron magnet elementary substance powder; and 18-22 parts of magnetic deformation memory alloy powder. According to the memory alloy heat dissipation coating, the radiation and convection dual heat dissipation effect is achieved, and the heat dissipation effect is greatly improved for equipment with low surface temperature such as a transformer and a motor.

The utility model discloses a halogen-free low-smoke flame-retardant power cable, relates to the technical field of flame-retardant power cables, and aims to solve the problems that the existing power cable is mostly provided with a flame-retardant layer, when the flame-retardant effect is poor, and once the cable is on fire and explodes, serious fire disasters and power outage accidents can be caused. Four wire cores are annularly arranged in the cable core, a filling layer is arranged among the wire cores, each wire core comprises a conductor and a composite insulation shielding layer, the conductor is located in the wire core, the composite insulation shielding layer is located outside the conductor, an inner lining layer is arranged on the outer side of the cable core, a composite flame-retardant layer is arranged on the outer side of the inner lining layer, and the composite flame-retardant layer is arranged on the outer side of the composite flame-retardant layer. The outer side of the composite flame-retardant layer is provided with a steel wire armor layer, and the outer side of the steel wire armor layer is provided with an outer sheath.

The utility model provides a kind of high current connector, including insulating shell, first terminal group and second terminal group, insulating shell includes main shell, first plug-in board and second plug-in board, main shell defines and has plug-in direction, stack direction and arrangement direction, first and second plug-in board extend from main shell along plug-in direction and are parallelly arranged along arrangement direction, first terminal group corresponds first plug-in board configuration and includes multiple first conductive terminal and first insulating partition, part of each first conductive terminal, first insulating partition and the rest each first conductive terminal are sequentially parallel stacked along stack direction, second terminal group corresponds second plug-in board configuration and includes multiple second conductive terminal and second insulating partition, part of each second conductive terminal, second insulating partition and the rest each second conductive terminal are sequentially parallel stacked along stack direction.

The utility model provides an electronic cigarette oil guide structure with a gradient capillary channel, and relates to the technical field of electronic cigarette related equipment, the electronic cigarette oil guide structure comprises an outer shell, integrated cotton, oil guide cotton and a heating wire assembly, the integrated cotton is arranged in the outer shell, an oil storage cavity is formed in the outer shell, and the oil storage cavity is used for supplying oil to the integrated cotton; the tobacco tar guide cotton is arranged in the outer shell and used for absorbing tobacco tar in the integrated cotton; the heating wire assembly is arranged in the tar guide cotton and used for heating the tar guide cotton so that the tobacco tar in the tar guide cotton can be volatilized. The technical problem that in the prior art, due to the fact that the speed of tobacco tar entering the integrated cotton is limited, the suction efficiency and the transmission efficiency are low is solved, and the situation that tobacco tar leaks due to the fact that the integrated cotton is not arranged is avoided.

This invention discloses a remote online teaching method and system based on internet education, including a teaching server, a student terminal, and a teacher terminal. This remote online teaching system leverages the multi-channel transmission characteristics of the internet, dividing a single class into multiple learning groups. Each learning group shares a communication channel, allowing for multi-channel communication with the instructor. This effectively reduces communication congestion, resulting in more stable and efficient video transmission. Group members can communicate with each other, facilitating peer interaction. Instructors can individually enter each learning group during communication sessions to provide guidance. The system incorporates an evaluation unit, allowing for peer evaluation between instructors and students, monitoring and regulating student learning behavior. The system collects evaluations through multiple channels and at multiple levels, providing a comprehensive assessment that promotes better teacher-student communication and improves teaching quality.

The invention relates to the technical field of network data transmission, in particular to a data transmission method and system of Internet of Things equipment and computer equipment. The method comprises the following steps: acquiring a transmission path for data transmission in a local area network; acquiring the transmission importance degree of the transmission path according to the position of the transmission path in the local area network and the data transmission condition of the transmission path in the first preset time period; according to the transmission importance degree of a transmission path connected with the transmission center and the transmission duration of each type of data transmitted by the transmission center within a second preset time period, obtaining the transmission weight of each type of data transmitted by the transmission center; and according to the transmission weight of each type of data in different transmission centers and the preset minimum transmission storage space capacity of each type of data, obtaining the target transmission storage space capacity of each type of data. According to the method, the target transmission storage space capacity of each type of data is obtained, so that the transmission stability and efficiency of the data in the local area network are effectively improved.

The utility model discloses a shoe sole scrubbing machine with a full-automatic brush head, which belongs to the technical field of shoe sole scrubbing and comprises a groove-shaped base divided into a power groove and a water groove by a vertical plate, a water absorption plate component mounted at the top of the power groove and a scrubbing mechanism mounted in the water groove. The washing mechanism comprises a plurality of washing heads, a plurality of supporting columns, a laminate structure and a transmission mechanism; the laminated plate structure comprises a top plate, a middle plate and a bottom plate which are arranged in the water tank from top to bottom. Cleaning liquid is injected into the water tank, and a user stands on the supporting columns; under the driving of the driving equipment, the brushing heads rotate to brush the shoe sole, the brushing effect is good, and meanwhile cleaning liquid is brought to the shoe sole, so that the brushing efficiency and effect are further improved; after cleaning and brushing are completed, the user stands on the water absorption plate assembly, water absorption of the shoe sole is achieved, and cleanness and convenience are achieved.

The utility model discloses a lateral shutter assembly with a linkage opening and closing mechanism, which comprises a shutter frame and a plurality of shutter plates positioned in the shutter frame, the plurality of shutter plates comprise shutter plate bodies and shutter end cover seats positioned at two ends of the shutter plate bodies, the shutter end cover seat at any end is matched with a linkage rack, and the linkage rack is matched with the linkage rack. The linkage rack is located in the shutter frame, the shutter end cover seat comprises an end cover body, a rotating shaft part and a rotating tooth part, the rotating tooth part is used for being matched with the linkage rack in a meshed mode, and the linkage rack is used for synchronously driving the corresponding rotating tooth part to rotate and achieving overturning of the plurality of shutter plates in a linkage mode. According to the utility model, the embedded linkage rack design is adopted, so that the linkage matching of the louver boards is facilitated, the convenience of the whole linkage is improved, and meanwhile, the appearance is good in aesthetic feeling.

The invention relates to the technical field of bridge construction, in particular to a construction hanging basket operation risk real-time monitoring method and system. The method comprises the following steps: S1, deploying a monitoring system including sensing, transmission, data processing and early-warning brake layers; s2, early warning and braking threshold values are set; s3, the sensing layer collects parameters in real time in the walking process and transmits the parameters to the data processing layer through the transmission layer; s4, the processing layer preprocesses the data, calculates a displacement difference and a speed difference, and judges a balance state in combination with attitude parameters; and S5, executing continuous monitoring, primary early warning or secondary early warning and emergency braking according to a judgment result. In the system, a sensing layer comprises a high-precision laser displacement sensor, a tilt angle sensor and a stress monitoring module, a transmission layer adopts a'wired + wireless' mixed mode (delay is less than or equal to 0.5 s), a data processing layer comprises an edge computing terminal and a background monitoring center, and an early warning braking layer realizes graded prevention and control. According to the invention, automatic high-precision monitoring is realized, manual dependence is avoided, accurate early warning and braking are realized, overturning accidents are avoided, and construction safety and quality are improved.

The invention belongs to the technical field of water level measurement, and particularly relates to a water level measurement system based on water environment simulation, which comprises a data integration module, a data transmission module, a water body simulation module and a water level display module, the system is provided with a network topology structure, various water body sensors are used for collecting water body data, the water body data are preprocessed, the data quality is guaranteed, and a data basis is provided for water level measurement; establishing a Saint-Venant equation model to simulate water flow, simulating water surface waves in combination with a spectrum density function, establishing a water level measurement model, extracting water level feature information, obtaining a water level measurement result, and performing comparison verification according to an evaluation index and an actual water level to improve the accuracy of model prediction; the system can reflect the actual water body condition, a user can conveniently obtain a water level measurement result and related water body data, and an efficient and accurate solution is provided for water level measurement.

The invention discloses a transport frame for efficient welding equipment, and relates to the technical field of welding equipment.The transport frame comprises a bottom plate, a supporting frame is arranged at the upper end of the bottom plate, a transmission assembly is fixedly arranged at the upper end of the bottom plate, a moving frame is slidably arranged at the upper end of the transmission assembly, and a limiting assembly is arranged in the supporting frame; the conveying frame comprises a bottom plate, two feeding and discharging assemblies are arranged on one side of the bottom plate, a welding assembly is jointly arranged at one ends of the same sides of the two feeding and discharging assemblies, the transmission assembly comprises four vertical plates, and the lower ends of the four vertical plates are fixedly connected with the bottom plate. The conveying frame can be effectively matched with continuous machining of welding, the welding efficiency is high, conveying in the two axial directions can be conducted, the universality is higher, the conveying frame is high in structural strength and long in service life, the conveying trolley is further arranged, the trolley can be conveniently limited, in this way, workpieces can be conveniently placed and taken down, and the overall structure is reasonable and reliable.

The application belongs to the technical field of data transmission supervision, and specifically relates to an intelligent data transmission link quality monitoring and optimization system based on AI technology, which comprises a link feature sensing and collecting module, an AI adaptive noise reduction preprocessing module, a link quality multi-dimensional evaluation module, a link degradation root cause tracing and positioning module, a transmission channel intelligent adaptive scheduling module, and a link self-healing strategy generation and execution module; the application collects link core features and completes AI adaptive noise reduction, quantitatively evaluates link quality and classifies the link quality through an AI model, locates degradation root causes relying on AI inference, filters optimal channels according to link states and root causes to perform differentiated scheduling, implements online lightweight or offline deep self-healing for risk / low-quality links and checks optimization effects, significantly improves data transmission stability and resource utilization, reduces operation and maintenance costs, and is conducive to realizing full-process unmanned intelligent management and control of data transmission links.

The utility model discloses a transmission gear box of a corn harvesting header, and belongs to the technical field of corn harvesting devices. The transmission gear box comprises a shell and a main shaft, the main shaft transversely penetrates through the shell and is rotationally connected with the left end and the right end of the shell, and a first driving gear and a second driving gear are installed on the main shaft and used for driving the first reel chain gear and the second reel chain gear in a meshed mode respectively. The central floating gear is connected to the main shaft and arranged in the middle of the shell, a first bevel gear and a second bevel gear on the two sides of the central floating gear are meshed with the first stem pulling roller gear and the second stem pulling roller gear respectively, and the central floating gear is axially arranged in a floating mode, has a left-right sliding space and is used for sliding the stem pulling roller gear when stress on the two sides is not uniform. The central floating gear can be automatically aligned to a stress balance point along the main shaft; and the gear transmission is efficient and stable, the energy consumption of the gear box is small, the efficiency and the reliability are high, and the loss is reduced.

The invention relates to the technical field of electrical auxiliary materials, and particularly discloses a radiation and convection dual-function heat dissipation coating and a preparation method thereof. The radiation and convection dual-function heat dissipation coating comprises a graphene infrared radiation layer and a downstream convection heat dissipation material distributed on the graphene infrared radiation layer, and the graphene infrared radiation layer is prepared from the following raw materials in parts by weight: 35-45 parts of elemental carbon powder; 10-14 parts of alumina powder; 4-6 parts of a water-based adhesive; 30-40 parts of a water-based solvent; 6-10 parts of a filler; 1-3 parts of an antioxidant; the airflow convection heat dissipation material comprises flaky alloy heat dissipation particles, the flaky alloy heat dissipation particles are copper-iron alloy containing copper and iron, the copper content of the copper-iron alloy is 85-95%, and the balance is iron. According to the radiation and convection dual-function heat dissipation coating, the radiation and convection dual heat dissipation effect is achieved, and the heat dissipation effect is greatly improved for equipment with low surface temperature such as a transformer and a motor.

The invention is suitable for the technical field of lithium batteries, provides a metal organic nano cross-linked network-based solid electrolyte and a preparation method, and solves the problems that the existing inorganic solid electrolyte is poor in processability and the existing polymer solid electrolyte is poor in electrochemical stability and low in ionic conductivity. The electrolyte disclosed by the invention has relatively high lithium ion conductivity and lithium ion transference number and provides guarantee for stable operation of the battery, and benefited from the polymer metal organic nano cross-linked network-based solid electrolyte-air positive electrode integrated material, the rate capability, cycling stability and the like of the lithium-air battery are obviously improved.

The invention provides a splicing combination structure of a ring main unit, and relates to the technical field of ring main units, the splicing combination structure comprises a frame and two device shells, the inner walls of the two device shells are fixedly connected with fixed plates I, the lower ends of the two fixed plates I are fixedly connected with T-shaped blocks, when the device shells need to be disassembled, a worker starts a motor, and the T-shaped blocks are fixedly connected with the frame; a motor drives a short connecting rod and a long connecting plate I to rotate, after the device shell is far away from the frame, a worker lifts the device shell, so that two T-shaped blocks are separated from a fixed block, the purpose of dismounting the device shell is achieved, and when the device shell needs to be mounted, the T-shaped blocks on the device shell are clamped with the fixed block again, and then the motor is controlled to output reversely, so that the device shell is dismounted. Therefore, the purpose of splicing the device shell can be achieved, the problem that the device shell is inconvenient to disassemble and assemble due to assembly in a welding mode is avoided, the labor cost and the time cost consumed by workers during disassembly and assembly are saved, and the disassembly difficulty of the ring main unit is reduced.

The present invention discloses a welding and forming clamping device for rotating inner and outer ring welds of a cylinder, which belongs to the field of welding equipment. The welding and forming clamping device of the present invention comprises a base, a lower clamping mechanism, an upper clamping mechanism, a lifting drive mechanism, a flipping drive mechanism, a flip seat, a rotating drive mechanism and a clamping and positioning mechanism. The present invention utilizes the clamping and positioning mechanism to support the thin-walled cylinder to avoid self-deformation of the cylinder; and cooperates with the upper and lower clamping mechanisms to clamp and fix each product to be welded, and utilizes the ring body to press the roller to ensure the positioning accuracy and clamping stability of the parts, which is beneficial to reduce the deformation of the ring seam welding; in addition, the upper and lower clamping mechanisms are utilized to drive the cylindrical parts to rotate and weld, and the flipping mechanism is utilized to drive the cylindrical parts to flip and weld, and the inner and outer welds at both ends of the cylindrical parts can be welded and formed at one time by clamping, thereby improving the welding production efficiency, and the welding accuracy is greatly improved, effectively reducing the welding defect rate, and improving the economic benefits of the enterprise.

The embodiment of the invention discloses a communication method, device and equipment for Internet of Things equipment, relates to the technical field of communication, and is used for solving the communication problem that the equipment can realize reliable data transmission when the Internet of Things equipment is in a weak network or disconnected network environment. The method comprises the following steps: when the network connection quality of first Internet of Things equipment is lower than a preset threshold value, triggering the first Internet of Things equipment, and establishing a near field communication link with second Internet of Things equipment through near field communication; through a near field communication link, protocol forwarding is carried out on the flow of the first Internet of Things device through a dual-stack gateway, so that a network protocol stack between the first Internet of Things device and a second Internet of Things device is cascaded, and the first Internet of Things device accesses a target network through the second Internet of Things device. The network protocol stack comprises a system protocol stack and a private protocol stack which are parallel in the same dual-stack gateway.