1082results about How to "Avoid failure" patented technology

The invention relates to a magnetic suspension bearing control system and method and refrigeration equipment, and the system comprises a magnetic suspension bearing control module which is used for controlling a magnetic suspension bearing; the battery management module is electrically connected with the magnetic suspension bearing control module; and the master control module is respectively connected with the magnetic suspension bearing control module and the battery management module and can control the battery management module to store electric energy when the voltage of the magnetic suspension bearing control module is excessive and supply power to the magnetic suspension bearing control module when the power supply of the magnetic suspension bearing control module is insufficient. According to the technical scheme of the magnetic suspension bearing control system, through cooperative work of the battery management module and the master control module, the stability, the energy-saving performance and the response speed of the system are enhanced, the service life of equipment is effectively prolonged, and the maintenance cost is reduced. The integrated solution provides a safer, more reliable and more economical operating environment for high-performance and high-precision mechanical equipment.

The utility model relates to a kind of spring hinge assemblies for glasses legs, including pile head, pile head positioning sheet, spring box and spring core mechanism, the pile head slot that is penetrated out of its one end is set on the pile head, the glasses leg folding passageway that is penetrated out of the inside of pile head is further included on the pile head slot, the pile head positioning sheet is fixed on the pile head and includes the connecting ring extending into the pile head slot, the spring core mechanism is set in spring box, the spring core mechanism includes connecting sheet, the connecting sheet is penetrated out of spring box and is set with connecting hole, the connecting sheet is cooperatively set in the pile head slot and is buckled with connecting ring by connecting hole, the hinge assembly not only can realize the conventional opening and closing action of glasses leg, but also can produce certain up-down swing buffer when being subjected to vertical direction external force, to effectively prevent the bending or fracture of glasses leg due to excessive stress.

The utility model relates to the technical field of bucket-wheel reclaimers, and discloses a bucket-wheel reclaimer cantilever slewing mechanism torque protection device which comprises a base, a mounting groove is formed in the base, a motor is fixedly connected to the left side in the mounting groove, and the output end of the motor is fixedly connected with an over-torque coupler. A brake is arranged on the right side of the over-torque coupler, a torque sensor is fixedly connected to the right side of the brake, a speed reducer is fixedly connected to the right side of the torque sensor, the top conveying end of the speed reducer penetrates through the base to be fixedly connected with a rotating shaft, and a rotating disc is fixedly connected to the top of the rotating shaft. According to the utility model, the torque sensor is used for continuously monitoring the torque borne by the connecting part. During walking or rotation, the torque can be monitored in real time, and when the torque is increased abnormally, measures can be taken in time, such as adjusting the output power of a motor or triggering an alarm, so that the brake is prevented from losing efficacy due to overload.

The application discloses a network-constructed photovoltaic station precise active reserve control method and system, relates to the photovoltaic power generation and power system control technical field, and the method comprises the following steps: in the MPPT mode, a global iterative search is carried out on the power-voltage curve of the photovoltaic array by using an intelligent optimization algorithm, and the maximum power point of the photovoltaic array is located; whether the intelligent optimization algorithm converges to the maximum power point is judged by using a multi-index convergence monitoring condition, and the target reserve power is calculated in the case that the intelligent optimization algorithm has converged; the network-constructed photovoltaic station enters a weighted soft switching transition period, and the duty cycle is adjusted based on a dynamic weight; after the weighted soft switching transition period ends, the network-constructed photovoltaic station is switched to an active reserve mode, and in the case that the environment mutates, the network-constructed photovoltaic station is switched back to the MPPT mode. The application realizes precise reservation, stable tracking and fast frequency modulation response of the active reserve of the network-constructed photovoltaic unit.

The application provides a passive tag firmware upgrading method and device, equipment and a storage medium, relates to the technical field of communication, solves the problem that the related art firmware upgrade of the passive tag easily leads to the failure of the passive tag, and the scheme stores the fragmented data packet in the random access memory when the fragmented data packet corresponding to the to-be-upgraded firmware is received, acquires the voltage parameter of the energy storage capacitor in real time, and writes the fragmented data packet into the first storage area of the nonvolatile memory when the voltage parameter is greater than the preset threshold. In the case where all the fragmented data packets are written into the first storage area, the to-be-upgraded firmware is verified; in the case where the to-be-upgraded firmware passes the verification, the firmware upgrading operation is performed to stop running the original firmware stored in the second storage area of the nonvolatile memory and running the to-be-upgraded firmware. The scheme effectively reduces the occurrence of the failure of the passive tag and improves the maintenance efficiency of the passive tag.

The invention provides a pressure-bearing annular sealing device suitable for a nuclear island containment vessel and an installation method of the pressure-bearing annular sealing device. The sealing device comprises a first supporting mechanism, a sealing mechanism and a second supporting mechanism, one end of the first supporting mechanism is connected with the steel containment, the other end of the first supporting mechanism extends towards the wall of the shielding plant, one end of the second supporting mechanism is connected with the wall of the shielding plant, the other end of the second supporting mechanism extends towards the steel containment, and the first supporting mechanism and the second supporting mechanism are correspondingly arranged in the circumferential direction of the steel containment and form an annular mounting gap; the sealing mechanism is connected to the annular mounting gap in a sealing mode and comprises elastic buffering pieces arranged in the axial direction and the radial direction of the steel containment correspondingly, and the elastic buffering pieces abut against the position between the first supporting mechanism and the second supporting mechanism correspondingly.

The utility model provides a kind of solar drive automatic flower watering device, it is related to automatic flower watering technical field, including water tank, the surface of water tank is connected with solar drive assembly, the solar drive assembly includes placing rack, the surface of placing rack is connected with fixed frame, one-way screw is inserted in the inside of fixed frame, the both ends of one-way screw are connected with servo motor and bearing respectively, the surface of one-way screw is connected with moving block, the front surface of moving block is connected with spray head, the surface center position of fixed frame is connected with power box, the top of fixed frame is connected with solar system.The utility model, by solar system and power box, the independent power supply of servo motor and water pump can be realized, without external power supply, avoid external power supply failure, device will not work normally, possibly lead to the problem that plant cannot be irrigated in time, improve the stability of device when automatic watering to plant flower.

The invention belongs to the technical field of routers, and particularly relates to a router with strong signal penetrating power, which comprises a router main body and a sliding frame, the sliding frame is slidably connected with a storage part, the storage part is slidably connected with a contact part, the contact part is provided with a plurality of air holes, the contact part is slidably connected with a connecting part, and the connecting part is slidably connected with the router main body. Two fans with power sources are detachably connected to the connecting part through bolts, a temperature sensor is fixedly connected to the lower side of the contact part and can make contact with the upper surface of the router body, two inclined plates are arranged on the two sides of the contact part, and a pressure spring A is fixedly connected between the contact part and the storage part; the router further comprises two lower baffles connected to the lower side of the storage part in a sliding mode, a compressed spring B is fixedly connected between each lower baffle and the storage part, the two inclined plates can push the two compressed springs to move respectively, and the router can improve the heat dissipation effect and effectively avoid faults and spontaneous combustion.

The utility model relates to an adjustable donkey head hair plait anti -jumping groove device, contain fixed subassembly and a pair of movable subassembly, fixed subassembly contain the protection frame of door shape, the end of protection frame all is equipped with fixed clamp seat, fixed clamp seat contain the first base plate of board shape, be equipped with a pair of first side plate on the left side wall of first base plate, be equipped with a pair of guide rod on the left side wall of first base plate, be equipped with the through adjusting screw hole of first base plate, movable subassembly contain movable clamp seat and adjusting screw rod, movable clamp seat contain the second base plate of board shape, be equipped with a pair of second side plate on the right side wall of second base plate, be equipped with the through positioning screw hole and the through guide through -hole on second side plate. Since the protection frame of door shape sets up in the front of donkey head body, once appears donkey head steel wire rope unloading, also can make the steel wire rope always keep in the running of the front of donkey head when bending, effectively avoid the equipment failure caused by the steel wire rope jumping out of donkey head edge, obvious effect, strong practicality.

This application discloses a locking handle, relating to the technical field of medical devices. It includes a handle body connected to a clamping structure. The handle body is slidably and rotatably connected to an actuator, which is connected to a linkage structure. When the actuator slides, it drives the clamping structure to open and close via the linkage structure. The actuator has a locking portion, and the handle body has a locking groove for engaging with the locking portion. When unlocking is required, the actuator is rotated, disengaging the locking portion from the locking groove. The inner wall of the locking groove does not restrict the sliding of the locking portion and the actuator, allowing the actuator to drive the clamping structure to open and close via the linkage structure. When locking is required, the actuator is rotated in the opposite direction, engaging the locking portion into the locking groove. The outer surface of the locking portion engages with the inner wall of the locking groove, thereby fixing the actuator relative to the handle body.

The utility model discloses a voice control oxygenation pump relates to oxygenation pump technical field, including the casing and set up in the casing, the air pumping assembly includes the air drum subassembly and is used for driving the air drum subassembly to move to produce the electromagnetic drive subassembly of oxygen, is equipped with the circuit board above the air pumping subassembly, and the circuit board is equipped with the air drum subassembly and the electromagnetic drive subassembly. The circuit board is integrated with a control unit, a voice recognition module used for converting voice into electric signals and a wireless communication module used for communicating with external equipment, the control unit comprises a microcontroller and a driving circuit, and the microcontroller outputs control signals to the electromagnetic driving assembly through the driving circuit. One side of the circuit board is electrically connected with a power supply unit, and the surface of the shell is provided with a display unit and a control adjusting part which are electrically connected with the circuit board. According to the oxygen increasing pump, the voice control structure is additionally arranged on the oxygen increasing pump, so that a user can conveniently operate the oxygen increasing pump through voice instructions, the use convenience of the user is improved, and the use experience of the user is greatly improved.

The application discloses a kind of no-load tap changer switching device and control method thereof, including main controller, gear control module and gear verification module;Gear control module according to the instruction issued by receiving main controller, no-load tap changer is carried out gear shifting action, and feedback gear shifting execution state;Gear verification module according to the instruction issued by receiving main controller, complete the verification of electricity and discharge work before gear shifting operation;After gear shifting is completed, the gear state is verified;The application automatically completes the whole process operation of verification of electricity, discharge, gear shifting execution and gear shifting verification etc., and realizes no-load tap changer gear shifting operation automation.Compared with the traditional manual field gear shifting mode, operation process can be significantly simplified, power outage operation time is shortened, gear shifting controllability and reliability are improved, and manual operation and maintenance cost is reduced.

The utility model discloses a dustproof wind speed sensor belongs to wind speed measurement technical field. Including the wind cup, the rotating shaft, the base and set up between the wind cup and the base's labyrinth seal component, the labyrinth seal component is by with the wind cup synchronous rotation's labyrinth ring and with the fixed base's labyrinth seat constitutes, and the zigzag labyrinth passage with multiple gyration parts is formed between two, when the airflow carries the dust and attempts to invade, the labyrinth passage passes through the extension invasion path and multiple change airflow direction, effectively consumes the airflow kinetic energy, promotes the dust particle settlement to block its into the bearing area on the basis of keeping traditional wind speed sensor appearance, through the innovative labyrinth seal structure has promoted the dustproof capacity significantly, especially suitable for desert, construction site and so on dust environment, effectively solved the bearing easy to jam, the sensor short life technical problem.

The application provides a cooling tower constant pressure PID adaptive control method and system based on process monitoring, and relates to the technical field of PID control.The method comprises the following steps: decoupling a working condition characteristic index group and a deviation feedback index group; constructing an operating condition vector and matching an initial operating scene group; calling a historical state transition chain, performing scene membership probability correction based on scene state transition prediction, and outputting a real-time operating scene; performing disturbance-free smooth coarse adjustment of the cooling tower constant pressure control; executing fine-grained PID fine adjustment of the cooling tower constant pressure; and performing scene switching analysis under incremental monitoring until the operating scene is changed, triggering fine-grained PID fine adjustment under disturbance-free smooth coarse adjustment. The application solves the technical problem that the prior art usually performs control parameter setting based on single or low-dimensional characteristics, cannot accurately identify the current operating condition category, and thus leads to PID parameter update lag and difficulty in timely matching the actual system dynamic characteristics when the operating condition rapidly changes.

This invention discloses a low-temperature start-stop control method for a hydrogen fuel cell vehicle, comprising: during the startup of the on-board fuel cell system, performing a self-check to determine whether the ambient temperature is below 0°C; when the ambient temperature is below 0°C, detecting the operating status of the hydrogen fuel cell vehicle and executing different cold-start strategies according to the operating status; during the shutdown of the on-board fuel cell system, detecting the ambient temperature, and when the ambient temperature is below 0°C, executing a shutdown strategy to reduce cooling circuit heat dissipation. The shutdown strategy to reduce cooling circuit heat dissipation includes: reducing the cooling circuit temperature to a first preset temperature, where the first preset temperature is greater than 30°C. This invention's low-temperature start-stop control method for hydrogen fuel cell vehicles adopts a self-starting approach, avoiding multiple cold starts due to energy allocation during operation in low-temperature environments. It optimizes the fuel cell system shutdown purging strategy during vehicle operation, increases the shutdown temperature, slows down system temperature drop, improves insulation, reduces the risk of low-temperature cold start failure, improves fuel cell stack lifespan, reduces the additional heating space of the fuel cell, and reduces additional consumption of the fuel cell system.

This invention discloses an identity negotiation method, system, apparatus, and storage medium based on cluster communication, comprising: encoding multiple preset cluster members to obtain a first number for each cluster member; sending a first broadcast message through an initial master station during a token exchange time slot of a current preset time period; monitoring the first broadcast message through each initial substation within the current preset time period and sending a second broadcast message after the current preset time period ends; when an initial substation does not detect the first broadcast message or the first broadcast message does not include the master station's identity declaration, each initial substation compares its own first number with the first numbers of other initial substations, determining the initial substation with the smallest first number as the target master station, and determining the other initial substations and the initial master station as target substations. This invention improves the efficiency and reliability of identity negotiation in cluster communication, realizes flexible changes in cluster communication control, and can be widely applied in the field of cluster communication technology.

The application discloses a non-magnetic ring proportional pressure reducing electromagnetic valve for a hydraulic system, a first through hole, a second through hole and a first blind hole are formed in the valve body, a pressure relief hole and a pressure inlet hole are formed in the side wall of the valve body, the pressure relief hole and the pressure inlet hole are communicated with the first through hole, a working hole is radially formed in the side wall of the valve body, the inner end of the working hole is communicated with the first through hole, and the outer end extends to the outer surface of the valve body, a valve core is axially movably installed in the first through hole, and a fifth outer groove and a first annular protrusion are arranged on the outer periphery of the valve core, the first annular protrusion forms an annular gap with the inner wall of the first through hole, a coil assembly is arranged in the yoke, a stop iron is fixedly arranged in the yoke through a mounting plate, and a magnetic circuit optimization structure is arranged on the outer surface of the stop iron. The magnetic circuit optimization and the multiple anti-sticking and friction-reducing designs are integrated, the independent magnetic ring is cancelled, the structure is simplified, the electromagnetic force, the response speed and the service life of the electromagnetic valve are comprehensively improved, the processing difficulty is obviously reduced, and the application range of the electromagnetic valve is widened.

The invention belongs to the technical field of metal wire feeding and printing, and relates to a quick-release wire feeding structure suitable for small-diameter metal wires. The wire feeding structure comprises a main body structure frame assembly serving as an installation reference and a force bearing main body of the whole mechanism; the quick-release wire feeding seat assembly is arranged in the main body structure frame assembly, and a through wire feeding channel is formed in the quick-release wire feeding seat assembly; the wire feeding shaft driving assembly is installed in the shaft hole of the main body structure frame assembly and used for driving the metal wire to move along the wire feeding channel; the wire feeding head assembly is installed at the outlet end of the main body structure frame assembly and used for guiding the metal wires; and the quick-release wire feeding seat assembly can be integrally taken out of and loaded into the main body structure frame assembly. The problems that operation and maintenance convenience is poor, and wire feeding stability and reliability are insufficient are solved.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

The utility model discloses a filtering device for producing an anti-blocking foam extinguishing agent, and relates to the technical field of filtering devices for producing anti-blocking foam extinguishing agents, the filtering device for producing the anti-blocking foam extinguishing agent comprises a tank body and a rotary drum type filtering net structure arranged in the tank body, the fixed partition plate is arranged in the tank body, the interior of the fixed partition plate is fixedly connected with a slag groove assembly, the slag groove assembly comprises a slag groove and a blow-off pipe, and the blow-off pipe is connected into the tank body in a sleeved mode; the input pipe is arranged at the bottom of the tank body, the bottom of the tank body is in through connection with an output pipe, and the bottom of the input pipe is in through connection with a connecting pipe. Through the arrangement of the slag groove assembly and the high-pressure flushing water pipe, the effects of timely cleaning and preventing blockage are achieved, the abrasion or blockage of the equipment caused by impurities, suspended matters and particles, the equipment failure and the maintenance cost are avoided, and finally the purity and the quality of products are improved.

The invention discloses a cinnamyl aldehyde microcapsule packaging bag and application thereof, and belongs to the technical field of food packaging and corrosion prevention. According to the invention, the essential oil microcapsules containing cinnamyl aldehyde are packaged by non-woven fabric packaging so as to ensure the normal volatilization and antibacterial and antiseptic effects of the product; through further vacuum packaging, the cinnamyl aldehyde-containing microcapsules are packaged to create a closed and oxygen-free environment, so that the essential oil is prevented from freely volatilizing and being oxidized by air; and finally, the sealing property of the cinnamyl aldehyde-containing microcapsule and the use convenience of the product are further ensured through the self-sealing bag packaging. According to the packaging bag, safe storage of the volatile preservative containing microcapsules can be achieved, and the packaging bag has the effects of being convenient to use, achieving slow-release bacteriostasis and enhancing food preservation.

The application provides an edge device-oriented lightweight multi-modal early gastric cancer collaborative auxiliary diagnosis system, which comprises a lightweight multi-modal classification module, a decision-level fusion unit, a first feature extraction network and a second feature extraction network; the decision-level fusion unit is used for evidence theory fusion of first classification probability and second classification probability, and outputs a multi-modal classification result; a lightweight segmentation module is constructed based on an encoding-decoding structure, an encoder of the lightweight segmentation module comprises a plurality of stacked lightweight bottleneck modules, a feature enhancement module is arranged in a skip connection of the encoder, and the feature enhancement module is used for pixel-level lesion segmentation of a white light endoscopy image; a gating cooperation unit is connected with the lightweight multi-modal classification module and the lightweight segmentation module respectively, and is used for generating a gating signal according to the multi-modal classification result; when the multi-modal classification result is positive, the lightweight segmentation module is activated to perform a segmentation task; and when the multi-modal classification result is negative, a subsequent segmentation process is terminated.

The utility model discloses an electronic valve and refrigeration equipment relates to refrigeration control technical field, wherein, electronic valve electronic valve, including lower valve seat subassembly, upper valve seat subassembly, valve needle subassembly and silencer, and lower valve seat subassembly is equipped with the intercommunication and valve mouth, and the valve cavity is formed with upper valve seat subassembly together, valve needle subassembly can be installed in upper valve seat subassembly, is used for opening and closing valve mouth, silencer is located in valve needle subassembly periphery, and its lateral wall is equipped with the sound attenuation hole, and the bottom is sealed butt joint with valve mouth circumference, and the upper end is spaced apart with upper valve seat subassembly, forms the flow passage of refrigerant circulation. Through setting up the silencer with the sound attenuation hole around the valve mouth, the big bubble in the refrigerant is refined into the small bubble, reduces the noise when its breakage, realizes efficient noise reduction. Since the main noise source concentrates in the valve mouth area, this arrangement can realize accurate noise reduction, and improve the overall mute performance. The flow passage formed between the silencer and upper valve seat subassembly helps impurities to be discharged with the refrigerant smoothly, avoids entering the transmission component gap.

The utility model belongs to the technical field of biomass particle furnaces, and particularly relates to a feeding device of a biomass particle furnace, which comprises a storage bin, a feeding device is arranged below the storage bin, a feeding hole is formed in a position, corresponding to an opening in the lower end of the storage bin, of the feeding device, and a discharging hole is formed in one end, far away from the feeding hole, of the feeding device. The feeding device comprises a shell, a conveying assembly is installed in the shell, a plurality of transverse baffles are evenly installed on the conveying assembly at intervals, and two side baffles are symmetrically arranged at the two ends of each transverse baffle in a sliding mode. According to the utility model, the quantity of the fuel entering the combustion chamber can be controlled according to the requirements of different combustion furnaces, the application range is wider, and meanwhile, the buffering bin is arranged, so that the energy is saved, and the cost is reduced.

The utility model discloses an energy storage system which comprises a box body, and a battery cluster, an energy storage high-voltage control box, a DC / DC device and an inversion device are arranged in the box body. The number of the battery clusters is multiple, the number of the energy storage high-voltage control boxes is the same as that of the battery clusters, and the input ends of the energy storage high-voltage control boxes are connected with the battery clusters in a one-to-one correspondence mode. The number of the DC / DC devices is multiple, each DC / DC device comprises a DC voltage stabilization channel, the DC voltage stabilization channels included in the multiple DC / DC devices are mutually independent, the number of the DC voltage stabilization channels is the same as that of the energy storage high-voltage control boxes, and the input ends of the DC voltage stabilization channels are connected with the output ends of the energy storage high-voltage control boxes in a one-to-one correspondence mode. The output end of the direct current voltage stabilization channel is electrically connected with the input end of the inversion device. By the adoption of the scheme, the problem of how to reduce circulating current and risks caused by direct-current confluence type design is solved.

The present application relates to a kind of film-covered stent and stent system, film-covered stent includes stent body, film and the several anchor thorn of being arranged on stent body, film covers stent body, the free end of anchor thorn is covered with detachable protective sleeve.Stent system includes the preceding film-covered stent, also include sheath, the inner diameter of sheath is greater than the outer diameter of stent body in natural state, the film-covered stent and stent system provided by the present application, by adding a detachable protective sleeve at the free end of anchor thorn, to avoid the risk that the free end of anchor thorn contacts and pierces the film that is stacked and mutually extruded during sheathing, to avoid the problem that the whole implant fails due to film damage.

The utility model belongs to plastic magnetic rotor field especially relates to a plastic magnetic rotor of stable structure. The utility model provides a plastic magnetic rotor of stable structure, include: the axle core, the equal interval spacing fixed connection of outer circumferential surface of axle core along the axial direction has a plurality of annular boss, plastic magnetic ring, the inner circumferential surface of plastic magnetic ring is equipped with the annular recess of corresponding with annular boss one to one, mechanical occlusion mechanism, is located between annular boss and annular recess, is used for enhancing the mechanical occlusion force between annular boss and annular recess, further improves the stability of plastic magnetic rotor structure, through annular boss and recess cooperation and mechanical occlusion mechanism, enhance the connection stability of plastic magnetic ring and axle core, avoid the clearance produced because of the aging failure of glue, prevent plastic magnetic ring and axle core relative rotation or axial movement, reduce equipment vibration and noise, avoid rotor failure.

A surface acoustic wave (SAW) device includes: a piezoelectric layer; an interdigitated electrode structure located on the piezoelectric layer; a wiring layer located on the piezoelectric layer and electrically connected to the interdigitated electrode structure; an interconnect layer located on the wiring layer; bumps located on the interconnect layer; and a metallization structure located between the interconnect layer and the bumps, electrically connecting the interconnect layer and the bumps and preventing material from the bumps from penetrating into the interconnect layer. The metallization structure on the interconnect layer prevents the bumps from directly contacting the interconnect layer, instead connecting them electrically through the metallization structure. This prevents the material of the bumps from fusing with the material of the interconnect layer and intruding into the device, thus preventing semiconductor device failure and improving the performance of the semiconductor device. Furthermore, the metallization structure's location between the bumps and the interconnect layer enhances the adhesion between the bumps and the interconnect layer.

The invention relates to a semiconductor structure and a preparation method thereof, and relates to the technical field of semiconductors, in the semiconductor structure, one side, close to a cellular region, of a second gate part exposes part of the surface, close to the cellular region, of a field oxide layer, namely, the second gate part does not climb a transition region; the first gate part is only arranged in the first direction to be connected with the second gate part, so that the film stress of the second gate part in a transition region when the second gate part climbs in the transition region of the cellular region and the terminal region is reduced, and the failure of the device is further avoided.

This invention discloses a watermark embedding method, a watermark extraction method, and a reversible watermark processing system, belonging to the field of reversible watermark processing technology. During watermark embedding, a distributed embedding framework is used. As long as a preferred local circular embedding region survives, the watermark sequence can be repositioned and extracted during watermark extraction, fundamentally solving the single-point failure problem. Furthermore, during watermark extraction, different strategies are employed for watermark extraction and image restoration based on whether the final watermark image has suffered external attacks, enabling complete recovery even without external attacks. This invention also improves embedding efficiency and the quality of the final watermark image by embedding compression auxiliary information into the initial watermark image.