190results about How to "Smooth transmission" patented technology

The optical module provided by the present disclosure comprises a circuit board, a base, a first light emitting component, a second light emitting component, a first light receiving component and a second light receiving component. The circuit board has a first notch part and a second notch part on the surface, and the base is embedded in the first notch part and the second notch part, so as to fix the base on the circuit board. The first light emitting component and the second light emitting component are located on the top surface of the base. The first light emitting component and the second light emitting component are respectively located in different notch parts, so that the wiring space of the circuit board between the first notch part and the second notch part can be used to increase the wiring area. The top surface of the base is used to carry the first light emitting component and the second light emitting component, and the top surface of the base faces the upper surface of the circuit board. The first light receiving component and the second light receiving component are arranged on the lower surface of the circuit board. The three-dimensional deployment and integrated deployment are realized, which is more conducive to wiring and reducing the occupation of the circuit board space, so as to realize multi-channel light emitting and light receiving.

The invention relates to the technical field of motor control, in particular to a brushless motor electronic speed regulation circuit for an unmanned aerial vehicle and a control method of the brushless motor electronic speed regulation circuit. The brushless motor electronic speed regulation circuit comprises a printed circuit board, a power supply module and a grid driving module. The printed circuit board is provided with a plurality of wiring layers which are stacked, and comprises a first power supply layer and a second power supply layer which are adjacent to each other in the vertical direction and are overlapped and aligned, and an electrical control layer. The power supply module is arranged on the first power supply layer and the second power supply layer, the first power supply layer and the second power supply layer are electrically connected through a matrix via hole array, and the power supply module is used for being electrically connected with an external power supply and supplying power to a circuit after processing. The grid driving module is arranged on the electrical control layer, is powered by the power supply module and is used for outputting driving voltage to the brushless motor, large current transmission and balanced distribution of the multi-channel motor controller can be realized on a single printed circuit board, and electromagnetic interference of a power loop on a control signal is inhibited.

The utility model relates to connecting pipe technical field discloses a high quality visual electronic cystoscope catheter, including operation handle, the outside fixed connection of operation handle has endoscope catheter, the inside slide connection of endoscope catheter has connecting pipe, the outside fixed connection of connecting pipe has curved end, the outside of operation handle is equipped with a plurality of limit slot, the outside slide connection of limit slot has telescopic mechanism, the outside fixed connection of operation handle has quick -witted mechanism, telescopic mechanism includes follow -up block no.

The utility model relates to the technical field of grain conveying, disclose a raw material conveying device for grain processing, including frame and conveyer belt, both sides of frame are longitudinally rotatable installation has the guide roller, the outer ring of both sides guide roller drive sleeve is placed, the frame surface of one side guide roller front end is installed with the step motor of guide roller drive connection, the inside of the frame below the upper layer conveyer belt is longitudinally provided with the supporting roller, the inside surface of the frame of supporting roller both ends is all set up with the sliding slot. The utility model technical scheme is provided with supporting roller in the bottom of conveyer belt and plays the supporting effect to conveyer belt, the pressure that conveyer belt acts to supporting roller can be detected by pressure sensor, the pressure size is also different when conveying the grain amount is different, and then judge the amount of conveying grain, make the conveyer belt speed increase when the conveying capacity is big, conversely make the conveyer belt speed reduce or stall, and the conveying speed requirement when the grain conveying capacity is big and the power saving demand when the grain conveying capacity is small are taken into account.

This utility model provides a fixing device for mounting a shooting device, including an antenna, a fixing mechanism for fixing and connecting the shooting device, and a connecting mechanism. The fixing mechanism includes a fixing base, an adjustment component rotatably mounted on the side wall of the fixing base, and two clamping arms disposed on opposite sides of the fixing base for clamping the shooting device. A fixing hole is provided through the fixing base. The connecting mechanism includes a connecting base and a signal transmission component disposed on the connecting base for electrically connecting the shooting device. The surface of the connecting base facing the fixing base is recessed inward to form a connecting groove for mounting the signal transmission component. The fixing device provided by this utility model ensures the stability and reliability of the connection between the shooting device and the antenna, thereby ensuring stable antenna signal transmission, ensuring the continuity and credibility of key data, and thus ensuring the effectiveness of law enforcement evidence collection and improving work efficiency.

The present application relates to the field of smart meter data acquisition, especially to a CPU occupancy-based meter data acquisition optimization method and system, the method comprising: obtaining the signal strength and working state of concentrator and meter nodes, establishing a data acquisition network model and calculating the load rate to reflect the network busy degree. Vector coding is used to generate initial particle swarm, each particle represents a data acquisition path, the transmission efficiency and communication quality of the path are evaluated, and the path score is obtained by weighted fusion based on the load rate. The particle with the highest score is selected as the global optimal solution to guide the particle swarm learning, the learning ratio is adjusted through the negative exponential function, the parent node vector is updated and iteratively optimized until the score no longer improves, the optimal path is output, and the data acquisition path optimization is completed. The present application dynamically adjusts the weight and optimization strategy, adapts to network changes, reduces the hop count, avoids weak signal links, and improves the transmission efficiency and stability of the data acquisition path.

This application relates to a photovoltaic cell conveying device, comprising: a drive unit; a conveyor belt wound around the drive unit, the conveyor belt being capable of cyclic movement under the drive of the drive unit, the conveyor belt having a negative pressure chamber, the chamber wall of which has adsorption holes connecting the negative pressure chamber to the external atmosphere; wherein, the conveyor belt is capable of undergoing recoverable deformation under the action of the drive unit to change the volume of the negative pressure chamber. In the above-mentioned photovoltaic cell conveying device, the conveyor belt cyclically moves under the drive of the drive unit to realize the conveying of the cells. Since the formation of the negative pressure environment in the negative pressure chamber relies solely on the action of the drive unit and the deformation of the conveyor belt itself, the structure of this photovoltaic cell conveying device is simple and reliable, eliminating the need for external vacuum equipment and complex connecting pipelines, thus avoiding the problems of large space occupation, high energy consumption, high noise and heat generation caused by the installation of external vacuum equipment, and significantly reducing production costs.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

The utility model provides a kind of pole piece buffer transfer equipment and pole piece processing system, it includes: stacking buffer mechanism, it includes mounting plate and open-close component, open-close component includes two moving plates and two fences, two moving plates are slidably connected in mounting plate, two fences are collectively enclosed and are stacked space, and clamping groove is equipped on moving plate;Transport mechanism, it includes guide component and clamping component, clamping component moves through guide component, clamping component includes two clamps and bidirectional driver, two clamps are connected bidirectional driver, and clamping protrusion is equipped on clamp.The utility model in, stacking buffer mechanism can be suitable for fixing different models of pole piece by the setting of open-close component, and transport mechanism can also realize the stable transmission process to pole piece of array by the height cooperation between it and moving plate.Compared with the conventional transport technology of present stage, the present application has the significant advantages of flexible use, easy control, stable transfer, strong controllability and wide use range.

The utility model discloses a kind of connectors for inverter, including connector shell and the electric conductor being set in the connector shell, the one end of electric conductor is connected with the internal electrical element of plate end assembly, the other end of electric conductor is connected with external photovoltaic module;The connector shell includes connector main body and nut, connector main body is provided with boss, boss is located plate end assembly inside and is abutted with plate end assembly, so that the outside end of connector main body protrudes the through-hole of plate end assembly, the outside end of connector main body is provided with screw thread, when nut and the outside end of connector main body are cooperated screw thread connection, connector main body is fixedly connected with plate end assembly;It further includes the anti-back pad for preventing nut back rotation between plate end assembly and nut, in the structure, by the setting of anti-back pad, effectively prevent nut loosening and falling off in use process, to enhance the stability of connector for inverter, avoid the connection failure problem caused by nut loosening.

This utility model belongs to the technical field of telescopic drive shafts, specifically relating to a high-strength telescopic drive shaft. The high-strength telescopic drive shaft includes a first shaft body, with an outer cylinder fixedly connected to the left side of the first shaft body. A connecting groove is formed on the inner wall of the outer cylinder, and an inner cylinder is disposed inside the outer cylinder. A rectangular hole is formed inside the inner cylinder. Through the cooperation of the inner cylinder, rectangular hole, connecting column, trapezoidal block, threaded column, sliding groove, sliding column, trapezoidal groove, first retaining ring, nut, and second retaining ring, when a gap arises between the connecting column and the connecting groove due to wear, rotating the nut increases the distance between the connecting column and the sliding column, compensating for the wear-induced gap. This allows the connecting block and the connecting groove to regain a stable fit, enabling the drive shaft to continue transmitting power stably and effectively reducing the maintenance cost of the drive shaft.

The utility model provides a kind of iron core production transfer device, belong to iron core production technical field, including fixed frame, fixed installation in the fixed frame end part conveying assembly, the cooling assembly used in cooperation with the conveying assembly, the adjusting assembly of being clamped in the side wall of the conveying assembly, and the cleaning assembly being set in the side surface of the conveying assembly and being used in cooperation with the conveying assembly.The utility model passes through conveying assembly, cooling assembly, adjusting assembly and cleaning assembly, significantly improve the efficiency and reliability of iron core transfer, conveying assembly adopts modular design, combined with extrusion spring and bearing seat structure, ensure that iron core is stably conveyed and reduce collision damage;Cooling assembly adjusts cooling machine position by telescopic cylinder, realizes accurate cooling, avoids high-temperature deformation;Adjusting assembly utilizes cylinder to drive conveying roller, flexibly adapts different size iron core, enhances universality;Cleaning assembly adopts pneumatic blowing technology, automatically removes iron core surface debris.

This invention relates to a robust image semantic perception adaptive masking transmission method for vehicle-to-everything (V2X) networks, comprising: Step 1: The transmitting end performs semantic analysis on the original input image, extracts high-precision semantic features, and identifies the regions of interest (ROI) and non-ROI regions of interest (NROI); Step 2: A Boolean mask is dynamically generated based on the semantic segmentation result and SNR; Step 3: The ROI features are directly masked based on the Boolean mask; Subsequently, the processed feature map is fed into a semantic encoder to extract multi-scale semantic features; Step 4: Power normalization is performed, dynamic feature encoding is performed, and then the encoded signal is transmitted through a typical analog wireless channel, and noise is superimposed before reception and recovery; Step 5: The receiving end receives the noisy feature signal, performs channel fading compensation and preliminary denoising, and sends the decoded features into a semantic decoder; Through progressive upsampling and multi-level semantic reconstruction, multi-scale features are fused, and finally, a high-quality reconstructed image is recovered and output.

The utility model relates to the technical field of yarn printing and dyeing, disclose a kind of intelligent yarn energy-saving and environment-friendly dye collecting device, including filter box, dye tank and waste water tank, the inner wall of filter box is fixedly connected with deflector, the inner wall right side of filter box is provided with filter frame, the outer wall right side of filter box is fixedly connected with water pump one, the outer wall right side of filter box is communicated with water delivery pipe, the rear end of water delivery pipe is communicated with the water pump one, the right side of water pump one is provided with intermediate transition tank, the top of water pump one is communicated with delivery pipe, the right end of delivery pipe is communicated with the intermediate transition tank. In the utility model, by water pump one and water delivery pipe, intermediate transition tank cooperation, stable transmission waste water, the density difference of precision filter screen in precision filter tank and dye realizes layering, respectively diversion to waste water tank and dye tank, this series of structure close cooperation, realized the real-time online recovery of printing and dyeing waste water dye.

This utility model relates to the field of building access control equipment technology. It proposes an adjustable intelligent building access control device, addressing the problems of existing access control devices having fixed roller door lengths, inability to adapt to different spacing of the access control body, easy loosening of the roller door, and complex operation. The device features symmetrical fixed plates inside the access control body, with an adjusting shaft movably installed between the two plates. The roller door is mounted on the adjusting shaft, with one end connected to the adjusting shaft and the other end connected to a clamping rod. A motor is mounted on the upper fixed plate, with its output connected to a first gear. A second gear meshing with the first gear is located at the top of the rotating shaft. Limiting plates are fixed to the adjusting shaft at both ends of the roller door, with springs fitted between the limiting plates and the fixed plates and onto the adjusting shaft. A roller is movably fitted in the middle of the rotating shaft, with limiting blocks fixed to the rotating shaft on both sides of the roller. The limiting blocks are connected to telescopic rods, with the other end of the telescopic rods connected to a clamping rod. The telescopic rods adjust for different spacings, while the springs ensure the roller door remains taut, making operation convenient and improving the device's versatility and stability.

The utility model discloses a material removal and collection device for nickel hydrogen battery processing relates to nickel hydrogen battery processing equipment technical field, aims at solving the existing material removal and collection device positioning inaccuracy, and the problem such as disorderly collection and complex structure, the device is by material removal tray, material removal board and conveyer belt composition, carousel on material removal tray and material removal groove bear battery, arc guider board guides shift, and material removal board passes through main, vice synchronous wheel and synchronous belt, and cooperation baffle realizes battery further shift, and guider board standard transmission path, and conveyer belt completes battery collection and delivery, and carousel bottom driving gear and main synchronous wheel bottom driven gear mesh, guarantee carousel and synchronous belt linkage, in addition, first, second guider strip and collection guider board, further promote material removal accuracy and collection order, and the device realizes nickel hydrogen battery efficient stable material removal, and orderly collection, and simple structure, low maintenance cost, benefit large -scale production.

This utility model relates to the field of mobile energy storage vehicle technology, specifically a mobile energy storage vehicle with temperature control function. It includes an adapter box, a main control box, a power module, an EV charging gun, a mobile frame, an energy storage battery, and a temperature control component. The adapter box, main control box, power module, EV charging gun, and energy storage battery are all mounted on the top of the mobile frame, and are electrically connected to the energy storage battery. This utility model achieves mobile charging equipment, flexibly meeting the charging needs of scenarios such as old residential areas, highways, and temporary operations, solving the problem of fixed charging pile layout limitations. Its temperature control component monitors the energy storage battery temperature in real time through a thermal management driver, driving the coolant to circulate between the battery cooling plate, heat exchanger, and coolant tank to achieve dynamic heating or cooling, avoiding abnormal temperature affecting battery charging and discharging efficiency and safety. Compared with traditional cooling methods, it is more efficient and uniform.

The application relates to the technical field of robot-assisted equipment, in particular to a robot unpacking in-out material trolley drag chain which comprises a drag chain body and a ground support. The fixed end of the drag chain body is connected with an in-out material trolley, and the ground support is provided with a sliding guide rail. The drag chain body is connected by multiple chain links into a bendable chain structure, is provided with a anti-falling groove, is provided with a reinforcing rib assembly in the chain link, and is provided with a buffer structure between adjacent chain links. Limiting blocks are arranged on the two sides of the chain link and are guided by cooperating with the guide rollers in the guide rail through connecting rods. The reinforcing rib assembly comprises longitudinal and staggered reinforcing ribs and has high strength. The buffer mechanism comprises a buffer sleeve, a limiting sleeve and a buffer pad and is used for buffering. The drag chain has good anti-falling, buffering and guiding performances, high strength and can guarantee stable operation of the in-out material trolley.

This utility model discloses a rapid testing device for rock deformation parameters, comprising a protective shell, one end of which is connected to the drill pipe and the other end to the drill bit. A power supply module, a resistance strain gauge group, a deformation parameter testing module, and a wireless transmission module are installed inside the protective shell. The power supply module provides power to the resistance strain gauge group, the deformation parameter testing module, and the wireless transmission module. The internal power supply line connecting the power supply module and the resistance strain gauge group is connected to the deformation parameter testing module via a signal transmission line. The deformation parameter testing module is electrically connected to the wireless transmission module. This utility model, by deploying resistance strain gauges, the deformation parameter testing module, and the wireless transmission module, monitors the strain signal generated by the interaction between the drilling equipment and the rock in real time, achieving rapid, accurate, and real-time testing of the Poisson's ratio of the rock mass during drilling, thereby guiding the evaluation of surrounding rock stability and the optimization design of support schemes in underground engineering.

This invention discloses an automated terminal equipment operation status monitoring device and method, belonging to the field of power distribution automation equipment monitoring technology. The device consists of an MCU, a current signal acquisition module, a voltage signal acquisition module, a temperature acquisition module, an A / D converter module, a power supply module, an alarm module, a communication recording module, a data storage module, and a display module. Each module is electrically connected according to a preset configuration to form a complete monitoring architecture. Based on this device, the method sequentially executes the following steps: system initialization self-calibration, multi-source signal synchronous acquisition and preprocessing, fault judgment threshold dynamic correction, multi-dimensional feature fusion fault analysis, hierarchical linkage response and data partitioning storage, and cyclic monitoring. This invention improves the accuracy of fault detection and analysis, can quickly locate faults and respond hierarchically, significantly shortens repair time, effectively improves the operation and maintenance management capabilities of terminal equipment, and ensures the safety of power distribution networks and equipment.

A stage lamp with smooth transmission comprises a lamp head, the lamp head comprises a light source and a focusing lens group located in the direction of the light beam emitted by the light source, the focusing lens group moves towards or away from the light source under the drive of a drive assembly, the drive assembly comprises a motor fixed relative to the light source and a drive rod connected with the focusing lens group, and a buffer assembly is arranged at the connection between the focusing lens group and the drive rod. The focusing lens group moves on the drive rod along the direction of the light beam emission through the drive of the motor, and the connection between the focusing lens group and the drive assembly is isolated and buffered through the arrangement of the buffer assembly, so that the movement of the focusing lens group is more stable and quiet.

This invention discloses a data transmission method, apparatus, and system based on hierarchical port domains. The method includes dividing a switch port into several port switching units and switching domains. Each port switching unit includes several ports and first and second buffers. Each switching domain includes several port switching units and a temporary buffer. Each port has a pre-set internal routing number including a domain identifier, a unit selection bit, and a port index number. Data packets received by the receiving port are parsed to obtain the target port address and converted into a target internal routing number. If the unit selection bit of the target internal routing number is the same as that of the source internal routing number, the data packet is transmitted to the first buffer for reception by the target port. If the unit selection bits are different, the data packet is transmitted to the second buffer, and it is determined whether the domain identifiers are the same. If they are the same, the data packet is stored in the temporary buffer; if they are different, the data packet is placed in the out-of-band transmission queue for transmission to the target port. This invention offers high data transmission efficiency and good port scalability.

This invention belongs to the field of mobile communication technology and discloses a RIS-assisted high-speed railway tunnel communication resource scheduling method and system. By acquiring real-time train location information, it dynamically judges and selects direct links or RIS-assisted links to adapt to changes in the tunnel propagation environment, effectively alleviating non-line-of-sight transmission problems caused by tunnel obstruction and improving the continuity and stability of communication links. When an auxiliary link is selected, the RIS target phase configuration is determined based on real-time location information, eliminating the need to frequently acquire full instantaneous channel information, reducing computational complexity and signaling overhead, and improving engineering practicality. Based on the selected link type and channel state information, the achievable rate of each service flow is determined, the resource amount required for its QoS requirements is estimated, and the scheduling priority index is calculated by combining the service flow priority weights. Transmission resources are allocated within available resources, taking into account the QoS requirements of multiple services and resource utilization efficiency, giving full play to the coverage advantages of RIS assistance, and ensuring stable transmission of multiple services in tunnel scenarios.

This invention discloses a remote monitoring method and system for flammable and explosive gases based on big data. It acquires raw datasets collected in real time from multiple sensors; preprocesses the raw datasets using a denoising algorithm, and obtains a first multi-parameter dataset through normalization; generates a second fusion feature set based on the first multi-parameter dataset; if the parameter values ​​of the second fusion feature set exceed a preset threshold, a classification model is used to identify gas leak events, and a diffusion model is combined to generate leak probability and range data; the leak probability and range data are compressed and encoded, and the transmission frequency and data packet size are dynamically adjusted according to network status parameters to form a stable transmission stream; the stable transmission stream is decoded at the monitoring center, and a dynamic visualization interface is generated using a visualization engine; the system reliability is judged based on the interface parameters to determine whether it meets preset standards. This invention achieves real-time monitoring, intelligent identification, and early warning of gas leaks.

The utility model relates to a kind of sealing structure of developing roller, including, toner cartridge, waste powder box and developing roller;The front end of waste powder box is provided with the opening of developing roller avoidance, developing roller is located in opening along left-right direction;The lower end of toner cartridge is provided with through-hole for the carbon powder outflow, waste powder box is located at the lower end of toner cartridge and blocks through-hole;Waste powder box is equipped with the flow guide groove of the carbon powder in toner cartridge being guided to the upper portion of developing roller on the upper side wall opposite to through-hole, the left and right sides of flow guide groove are all equipped with the baffle of preventing carbon powder flying out, the upper end of two baffles is all fixedly connected with toner cartridge, lower end is respectively slidably connected with the one side wall of developing roller in circular;Drive shaft is further provided in flow guide groove for driving carbon powder to flow to developing roller;The sealing structure of developing roller provided by the utility model effectively avoids the phenomenon that carbon powder leaks out of toner cartridge during the operation of printer, improves the overall sealing of device.

The utility model relates to conveying device technical field discloses a hollow glass production glass conveying device, including conveyer belt and rubber belt, the inside of conveyer belt is provided with the inner chamber, the surface of conveyer belt is provided with a plurality of adsorption holes through the inner chamber, the rubber belt fixedly connected in the bottom of inner chamber, the top of rubber belt is provided with a plurality of air suction holes through, the air suction hole is connected the adsorption hole, the middle part of rubber belt is provided with the air groove, the utility model starts vacuum pump, and the negative pressure produced is transmitted to the air groove through the gas pipe and the exhaust pipe, and then the hollow glass is adsorbed and fixed on the surface of conveyer belt through the air suction hole and the adsorption hole, the vacuum pump continues to pump, maintains the negative pressure state of conveyer belt adsorption hole, makes the glass firm adsorption on the conveyer belt, realizes the stable transmission of glass, and the rubber belt fills in the inner chamber of conveyer belt, supports the inner chamber of conveyer belt, avoids the collapse of conveyer belt due to the negative pressure.

This utility model discloses a lifting drive device for a lifting cloud bed, relating to the field of lifting cloud bed technology. It includes a column mounted on one side of the bed body and bed frame. A crossbar is fixedly connected to the outer wall of one side of the column. Two columns are fixedly connected to each other via the crossbar. A power component is mounted on one side of the crossbar, and a support column is fixedly connected to the middle of the crossbar. A transmission component for lifting the bed body and bed frame is located below the crossbar. This utility model ensures balanced force on the bed body, preventing tilting during lifting and improving safety. Simultaneously, the sprocket mounting seat on one side of the column provides stable support for the rotating shaft and the third gear disc, ensuring smooth transmission. Furthermore, the counterweight effectively balances the weight of the bed body, reducing motor load, energy consumption, and extending motor lifespan. Overall, it achieves stable, safe, and efficient lifting of the bed body.

The utility model discloses a kind of for ploughing and scraping field ploughing and scraping field ploughing device, it is related to ploughing and scraping field ploughing device technical field, including fixed frame, the upper end surface of fixed frame is fixedly provided with connecting rod assembly, connecting rod assembly is used to connect tractor rear tow bar;The both sides of fixed frame are bolted with fixed frame, and the bottom end of fixed frame is limit slidingly provided with arc-shaped scraper.The axial displacement of screw rod is generated by thread cooperation, to drive arc-shaped scraper lifting;The sliding fit of slide bar and fixed frame ensures that scraper vertical motion, spring provides elastic support and buffers impact, and limiting plate then restricts maximum stroke.When manual fine adjustment, operator rotates rotating ring can be accurate control scraper height, whole process transmission is stable, positioning is accurate.This manual fine adjustment mode has the advantages of simple structure, reliable, high adjustment accuracy, without external power, adapt to complex environment in field etc., set position is kept stable by mechanical self-locking, especially suitable for frequently fine adjustment of tillage working condition.

The present application relates to the field of optical fiber communication technology, and particularly relates to a radio frequency signal optical transmission delay control method, transmitter parameters are set by a transmitter, receiver parameters are set by a receiver; the transmitter sends a PPS measurement pulse to the receiver after starting up; the receiver carries out delay measurement on the PPS measurement pulse, and carries out arithmetic average to obtain a delay value; the FIFO reading pointer is adjusted based on the delay value, and the PPS measurement pulse signal is switched to a transmission radio frequency signal, so that radio frequency signal transmission delay is stabilized; the method transmits a PPS pulse before transmitting a radio frequency signal, measures the delay value of the transmitted PPS pulse relative to a local PPS pulse at the receiver, then adjusts the reading position of the receiver FIFO, so that the radio frequency transmission delay is adjusted to a set value, the purpose of adjusting the radio frequency transmission delay is achieved, the method is suitable for a radio frequency signal digital optical fiber transmission system, has good versatility, can automatically adjust the radio frequency signal transmission delay, and ensures the stability of the radio frequency signal transmission delay.

This utility model relates to the field of gear technology and discloses a gear assembly with adjustable gear meshing distance. The gear assembly includes a mounting platform, a mounting seat on the outer side of the mounting platform, a motor fixedly mounted on the inner wall of the mounting seat, and a main gear fixedly connected to the output end of the motor via a round rod. A driven gear is located on the outer side of the main gear. An adjustment mechanism and a facilitating mechanism are also located on the outer side of the mounting platform. In this gear assembly, adjusting the worm gear causes the worm wheel to rotate, which in turn causes the lead screw to rotate, moving the mounting seat horizontally and thus moving the main gear. This adjusts the distance between the main gear and the driven gear. The self-locking characteristic of the worm wheel and worm gear ensures the stability of the mounting seat. The sliding block and sliding groove further stabilize the mounting seat, ensuring the stability of the distance between the main gear and the driven gear after adjustment.