39results about How to "Avoid fees" patented technology

The invention discloses a magnetic wave ring which comprises a base, supporting legs are arranged at the bottom of the base, a machine body is installed on the base, a displayer support is installed on the top of the machine body, a displayer is installed on the displayer support, an operation interface is integrated in the displayer, a handle connector is arranged at the end, close to the displayer support, of the machine body, and a magnetic therapy handle is installed in the handle connector. A handle support is arranged on one side of the machine body, a plurality of radiators are arranged on the back of the machine body, power sockets are arranged at the bottoms of the radiators, and power switches are arranged on one sides of Compared with the prior art, the device has the advantages that painless and noninvasive electromagnetic stimulation treatment is achieved through the magnetic induction principle, the curative effect is definite, the side effect is small, and addiction is not prone to occurring. The equipment is reasonable in design, simple and convenient to operate, easy to master and suitable for medical institutions and families. Personalized treatment parameter setting is provided, and the requirements of different patients and different treatment parts are met. The device has multiple safety protection functions, and safety and effectiveness of the treatment process are ensured.

The invention relates to a virtual power plant bidding strategy optimization method based on a chaotic game optimization algorithm. The method comprises the following steps: generating an initial bidding strategy of a virtual power plant through chaotic mapping; each virtual power plant receives feedback information of the market, games by considering factors of cost, income, fluctuation of photovoltaic power generation, scheduling cost and attenuation of an energy storage battery and service life of equipment, and adjusts a bidding strategy of the virtual power plant; punishment income is applied to bidding behaviors violating market ethics or benefit distribution constraints; calculating the income of the power plant according to the adjusted strategy, and updating the bidding strategy of each virtual power plant; and repeating the game process until a convergence condition is reached, and outputting a virtual power plant bidding strategy. Compared with the prior art, the bidding strategy of the virtual power plant is more flexible and adaptive by using the randomness and unpredictability of the chaotic system, and meanwhile, the fairness, sustainability and healthy market development of the system are ensured by introducing ethical constraint and equipment life management.

The invention relates to the technical field of testing, in particular to a simulation testing method and device, electronic equipment, a storage medium and a product, and the method comprises the steps: obtaining the testing requirements of an auxiliary driving system and cabin domain control; configuring a CAN port of the virtual gateway according to a test requirement; and building a virtual driving environment on the simulation platform, and testing a signal response between the auxiliary driving system and the cabin domain control based on the configured CAN port. Therefore, the problems of low testing efficiency and high development cost in real vehicle testing in the prior art are solved.

The invention relates to / belongs to the technical field of voice communication, and provides a voice calling method and system for a primary gateway and a secondary gateway. The invention aims to solve the technical problem that short number services among sub-gateways need to be distributed and managed by operators in the prior art. Comprising the following steps: acquiring and analyzing a first notify message reported by a first sub-gateway, judging whether the first notify message is an internal short number service, and if so, replying a first response code to the first sub-gateway; obtaining and analyzing a first INVITE message reported by the first sub-gateway to obtain a calling number and a first call-id, obtaining an IP address of a second sub-gateway by using the called number, and generating a second call-id through the calling number and the IP address of the second sub-gateway; and a second INVITE message is generated based on the second call-id, the second INVITE message is sent to the second sub-gateway, and the second INVITE message is used by the first sub-gateway to establish a call to the second sub-gateway.

The invention relates to the technical field of freight processing systems, and discloses a digital freight processing settlement system and a settlement method thereof. And the management module is in bidirectional communication connection with the user interface module, the order management module, the abnormity management module, the cost simulation module, the freight settlement module and the data analysis module, and is used for managing data information generated in the operation process of the system and carrying out corresponding system parameter setting and interface management according to each account permission. The freight calculation unit performs freight calculation according to a clear calculation formula and a rate table, supports the calculation of special fees such as overtime waiting fees, highway fees and bridge passing fees, and provides a detailed list of fees, so that a cargo owner and a driver can clearly know the source and calculation basis of each fee, thereby avoiding fee disputes and improving the efficiency of the system. And the smoothness in the freight processing process is improved.

The invention discloses a strip mine unmanned terrain editable digital twinning method and system, and belongs to the technical field of digital twinning systems. The method comprises the following steps: constructing a three-dimensional terrain contour with topological information, and constructing a three-dimensional terrain with topological information based on the three-dimensional terrain contour; when the three-dimensional terrain changes, the latest three-dimensional terrain is downloaded, the latest boundary collected by the current vehicle is collected, a three-dimensional track route is drawn and updated, and the updated three-dimensional terrain is uploaded to a database; downloading two-dimensional graph data, and projecting and mapping a two-dimensional graph on a three-dimensional terrain; acquiring real-time coordinate data of the operation equipment, and adsorbing the real-time coordinate data on the three-dimensional terrain after projection mapping for driving; according to the method, the terrain can be dynamically edited, the editing flexibility higher than that of the traditional technology is provided, and the safety of mine field operation and the effectiveness of management are guaranteed.

This utility model discloses an adjustable camera mounting device for avoiding oversized shipping containers, comprising a camera adjustment mounting bushing mechanism and an adjustment bearing mechanism. The camera adjustment mounting bushing mechanism includes a component bushing, a component adjustment beam, and a component camera mounting plate, which are sequentially welded and fixed. The adjustment bearing mechanism includes a steel pipe with threaded holes and a positioning pin fixed on it, connected to the component bushing. This utility model provides an adjustable camera mounting device for avoiding oversized shipping containers, allowing the camera to be pre-installed and connected at the container manufacturing plant while ensuring the container width does not exceed the transportation limit. It also meets the design requirements for effective four-sided monitoring coverage of the container and the stability of the camera installation connection.

The application provides a municipal rainwater well reconstruction method under a fence foundation, comprising the following steps: before the construction of the fence foundation, all the earthwork on the top of the municipal rainwater well is removed, and the original well cover of the municipal rainwater well is removed; a rainwater well cover plate is additionally arranged on the municipal rainwater well; a well mouth is reserved on the rainwater well cover plate, and a new rainwater well cover capable of completely covering the well mouth is additionally prepared; the fence foundation is constructed, the fence foundation is formed to overhang the rainwater well cover plate at the intersection position of the fence foundation and the municipal rainwater well; the formwork at the overhanging position is sealed together with the formwork of the fence foundation around the overhanging position, and the concrete of the fence foundation is poured and vibrated; after the concrete strength of the fence foundation reaches the design strength, the formwork of the fence foundation is removed, and the backfilling of the fence foundation is performed. The application relates to the technical fields of municipal drainage and building structure, and can solve the problem that the existing municipal rainwater well cannot avoid the contradiction when a new fence is constructed.

The invention provides a construction method for a waffle plate with a detachable whole cylinder, and belongs to the technical field of waffle plate construction.The construction method for the waffle plate with the detachable whole cylinder comprises the steps that formwork matching is conducted on the construction position of the waffle plate according to a construction drawing, and vertical rod paying-off, all-round scaffold erecting, measuring marks and formwork installing are conducted on the construction position; cleaning the surface of the building template, placing a waffle template datum line, and popping an ink line; lofting is conducted according to the datum line, and a waffle cylinder base is laid; waffle plate reinforcing steel bars are bound, a cylinder body and a cylinder cover are installed, a top batten is firmly pressed, and the ends of the batten are bound and fixed to the waffle plate reinforcing steel bars; the front half part of the waffle plate concrete is poured, the top batten is dismantled when the front half part of the waffle plate concrete is half-dry, and the waffle plate concrete continues to be poured; the problems that in the construction process of the waffle plate, due to the fact that the beam height is high, the construction space is narrow, bottom steel bars are difficult to bind, and the construction progress and the construction quality are unfavorable can be solved.

The application belongs to the technical field of motor core lamination and relates to an adjustable slot detection rod for a high-power motor core as well as an assembly method and application thereof. The slot detection rod comprises an adjustable slot assembly extending into the interior of a motor core slot, wherein the adjustable slot assembly comprises oppositely arranged first and second slot plates, and the two slot plates are respectively parallel to the side walls of the respective adjacent slots to be detected. The first and second slot plates are detachably connected through a limiting adjustment mechanism, and the limiting adjustment mechanism adjusts the distance between the first and second slot plates. A handle is arranged above the adjustable slot assembly. In addition, by replacing the shapes of the first and second slot plates, the motor core slot of different shapes can be adapted. The application can achieve the purposes of reducing the cost of tooling preparation and shortening the production and manufacturing cycle of electronic cores.

The invention provides an image recognition method and device, electronic equipment and a storage medium, and relates to the technical field of image processing, and the method comprises the steps: carrying out the color quantization processing of a to-be-recognized image, and obtaining a quantized color value corresponding to each pixel; dividing the to-be-identified image into a plurality of macro blocks, and based on the quantized color values corresponding to the pixels in the macro blocks, determining quantized color numbers corresponding to the macro blocks; based on the quantized color number corresponding to the multiple macro blocks and the original color number corresponding to the multiple macro blocks, image types corresponding to the multiple macro blocks are recognized, and the image types are used for representing whether the macro blocks are character blocks or not. In the embodiment of the invention, the character blocks and the non-character blocks can be identified from the image, and the identification accuracy is high. And different compression coding modes can be adopted for the character blocks and the non-character blocks, so that the display quality of different areas and the size of the compressed data can be better controlled, and the problems of bandwidth increase and bandwidth cost increase can be avoided.

The utility model discloses a printing drying device which comprises a transmission assembly, a drying chamber, an ink jet bin, a transmission motor and an inner installation pipe, a conveying assembly is installed in the drying chamber through a shaft transmission rod, the transmission assembly is installed at the end, away from the shaft transmission rod, of the conveying assembly, and an ink connecting box is installed at the top of the drying chamber. An inner mounting pipe is mounted on the inner side of the exhaust pipeline through a shaft linkage seat, a transmission motor is mounted on the shaft linkage seat at one end of the inner mounting pipe, a recycling connecting plate is arranged in the drying chamber below the conveying assembly, and a collecting box is arranged at the end, away from the transmission assembly, of the recycling connecting plate. According to the printing device, the drying device is installed on a traditional printing device, so that accessories can be directly dried after being printed, the cost for purchasing drying instruments is avoided, meanwhile, the printing efficiency is improved, ink can be preheated through the arranged preheating structure, the quality of ink jet is improved, and the ink jet is more uniform.

The invention relates to the technical field of data processing, in particular to an operation verification method, an operation verification device, a storage medium and electronic equipment. The operation verification method comprises the steps that terminal equipment responds to a business operation request and sends a safety equipment service detection request to safety equipment service; after the security equipment service passes the security equipment service detection on the terminal equipment by the security equipment service, acquiring a security equipment voucher returned by the security equipment service; and when a verification request corresponding to the service operation request is determined to be realized according to the security equipment certificate, sending the security equipment certificate to a service interface corresponding to the service operation request, so as to execute the service operation request after the security equipment certificate is verified by the service interface. According to the operation verification method disclosed by the invention, the problems of high operation verification cost and complicated operation can be solved.

The utility model relates to metal hot processing technical field especially is related to a kind of processing device for heat treatment, the device includes: two cover plates of upper and lower symmetry arrangement, the inner surface of cover plate is equipped with the recess that is adapted with workpiece non-quenching area;Lifting ring, the lifting ring is fixed on the outer surface of cover plate;Stiffener, the stiffener is fixed on the outer surface of cover plate;Tension bolt, through the two cover plates of upper and lower, for the workpiece fixed between upper and lower cover plate;Heat barrier medium, the heat barrier medium is filled in the recess of cover plate, for blocking heat transfer to workpiece non-quenching area during heat treatment process.No need to additionally purchase special equipment of medium-frequency quenching, directly adapt enterprise existing ordinary box type heating furnace, avoid equipment large investment;While save the expense of entrusting outside processing, solve the problem of long outside cycle, greatly shorten production cycle, improve production efficiency.

The invention relates to a construction method of a high-wear-resistance reinforced concrete floor. The construction method comprises the following construction steps: fully mixing all raw materials by using a concrete mixer to obtain high-wear-resistance concrete; high-wear-resistance concrete is poured into the formwork, and the surface of the concrete is scraped to be flat after the concrete is compacted and bubbles are removed; uniformly spreading non-metal wear-resistant aggregate accounting for 2 / 3 of the total amount on the surface of the concrete at the initial setting stage, and performing grinding treatment after the color of the edges of all the wear-resistant aggregate becomes dark; the non-metal wear-resistant aggregate accounting for 1 / 3 of the total dosage is spread for the second time, and after the surfaces of all the wear-resistant aggregate spread for the second time get damp and the color of the edges becomes dark, the wear-resistant aggregate is ground to obtain the high-wear-resistance reinforced concrete floor. The total amount of the non-metal wear-resistant aggregate is the product of 4kg / m < 3 > and the surface area of the concrete to be paved; and 8-12 hours after the high-wear-resistance reinforced concrete floor is completed, the high-wear-resistance reinforced concrete floor is kept wet in a water spraying mode so as to be maintained.

This invention relates to the field of rare earth element separation, and discloses a method for preparing a eutectic extractant and extracting and purifying yttrium. The eutectic extractant prepared by this invention has low water solubility and low viscosity. The extraction process does not require saponification treatment or dilution with organic solvents. It has strong extraction ability for rare earth elements, good selectivity, and is easy to prepare. It achieves efficient and green separation and purification of yttrium without saponification or solvents, without generating saponification wastewater, and with low separation cost.

The invention discloses a power dispatching method, device and equipment for an optical storage micro-grid system and a medium, and belongs to the technical field of power dispatching. The method comprises the following steps: acquiring source network load storage resource data of a micro-grid system; based on the source network load storage resource data of the micro-grid system, obtaining the off-grid power of a tie line between the micro-grid system and the large power grid; according to the off-grid power of the tie line, selecting a photovoltaic maximum consumption strategy or a tie line control strategy to perform power dispatching of the micro-grid system; according to the tie line control strategy, the off-grid power of a tie line is adjusted by controlling one or more of photovoltaic equipment, energy storage equipment and load equipment. According to the power dispatching method provided by the invention, the load impact of the micro-grid system on a large power grid can be reduced, the utilization rate of energy storage equipment is improved, power generation and load fluctuation are stabilized, various resource configurations of source grid load storage in the micro-grid system are optimized, and the stability and economical efficiency of operation of the micro-grid system are improved.

The present invention relates to the technical field of offshore oilfield oil and water well development, and in particular to an offshore platform continuous capillary steel pipe through oil pipe cable cutting device and a method of using the same. The technical scheme is: it includes a pipe cable cutting part and a pipe cable recovery part, the other end of the continuous capillary steel pipe of the pipe cable cutting part is connected to the upper end of the pipe cable cutting device downhole, and the well-retained pipe cable passes through the pipe cable cutting channel of the pipe cable cutting device; a counterweight is installed at the lower end of the pipe cutter, the upper end of the pipe cutter is connected to a hydraulic release hand, the upper end of the hydraulic release hand is connected to a rotary joint, and the upper end of the rotary joint is connected to the continuous capillary steel pipe; the beneficial effects are: the present invention can efficiently, accurately and safely complete the pipe cable cutting task, improve the efficiency of offshore oil production operations, and effectively reduce the post-processing costs and production losses; it avoids the problems of high cost and long time for single well operation on offshore mobile platforms in the prior art, saves operating costs, and can quickly resume production.

The invention relates to the field of offshore construction, and discloses an integrated simulation system for offshore wind power construction, which is applied to an offshore wind power construction project and comprises a modularization module, a simulation module and a simulation module, a production line module, a storage yard module, an assembly line module, a wharf berth module, a transport ship module and an offshore operation ship module are obtained; the construction progress simulation module is used for simulating the construction progress of the construction scheme of the offshore wind power construction project and determining a current construction operation task; the transport scheduling module is used for determining and controlling the transport ship to execute a corresponding transport operation task according to the current construction operation task; and the construction scheme module is used for determining and controlling the construction operation ship to execute the corresponding construction installation operation task according to the current construction operation task. Integrated simulation of offshore wind power construction is realized, the whole construction process can be simulated, the construction efficiency can be improved, and the construction quality can be ensured.

This invention discloses a single-lock curtain wall with a non-intrusive clamp hoisting component and its construction method, belonging to the field of building curtain wall technology. It solves the technical problems of traditional post-installed embedded components damaging the main structure, difficult rebar installation, low installation accuracy, and poor adaptability. The single-lock curtain wall includes a post-installed clamp assembly, a beam structure, a reinforced load-bearing component, a hoisting cable assembly, and a curtain wall assembly. The post-installed clamp assembly consists of a load-bearing plate, a tie plate, a reinforcing plate, and a hoisting plate. It forms a ring-shaped non-intrusive structure by bonding and welding with architectural AB adhesive. Combined with the differentiated reinforcement structure of the beam structure, it achieves uniform load transfer. The construction method includes on-site material customization, non-intrusive installation of the clamp assembly, precise curtain wall suspension, and intelligent monitoring with a total station. The monitoring system captures millimeter-level displacement through a prism, forming a closed-loop control of measurement-feedback-adjustment.

The invention discloses a one-time forming construction method for a cast-in-place concrete floor. The one-time forming construction method comprises the following steps that S1, materials are prepared; s2, cushion layer treatment; s3, a formwork is installed; s4, setting an isolation seam; s5, concrete pouring; s6, concrete leveling treatment is carried out; s7, concrete maintenance; and S8, floor construction. According to the one-time forming construction method for the cast-in-place concrete floor, the levelness and flatness of the ground can be effectively improved, the overall service life of the floor is prolonged, meanwhile, a special polishing technology is used, a unique concrete reinforcing material is applied, the high-density, high-strength, super-resistant and high-gloss floor is formed inside and on the surface of concrete, and the construction efficiency is improved. The method can effectively avoid later ground maintenance and cost, increase the attractiveness of the ground, prolong the service life of the ground, effectively ensure the flatness, strength and durability of the terrace, and reduce the quality problems of poor interlayer combination and the like possibly caused by layered construction at the same time.

The invention discloses a wall-crossing tower crane mounting structure and a construction method thereof.The construction method of the wall-crossing tower crane mounting structure comprises the steps that two vertical frame bodies are provided, a plurality of wall penetrating sleeves with the length equal to the thickness of a to-be-spanned wall are provided, and a plurality of half transverse rods arranged in the height direction of the vertical frame bodies at intervals are fixedly mounted on each vertical frame body; the half transverse rods on the two vertical frame bodies are made to be opposite in pairs to form a plurality of pairs of half transverse rods, and the two half transverse rods in each pair of half transverse rods are detachably connected in a butt joint mode to form a plurality of first transverse rods; according to the non-standard transition joint of the tower crane, the problem of cross-wall arrangement of the tower crane in a narrow and small space is solved, the cost of later plate repairing and large-scale machine dismantling is avoided, the cost is saved, the arrangement flexibility of the tower crane is improved, and the construction period is shortened. And the dismantling safety risk is reduced, the construction efficiency is improved, and the high popularization value is achieved.

A wireless charging device capable of automatically identifying a non-specified wireless power receiving load comprises a charging end circuit and a receiving end circuit, the charging end circuit comprises an MCU control circuit, a switch circuit, a resonant cavity circuit and a resonance waveform sampling and shaping circuit, and the receiving end circuit comprises a coupling resonance and rectification filter circuit and a charging control switch circuit. The MCU control circuit is provided with a negative slope fixed value of voltage to time, the MCU control circuit outputs a pulse signal to control and drive the switching circuit to excite the resonant cavity circuit to generate sine resonance, resonance energy passes through the power receiving end circuit and the resonance waveform sampling and shaping circuit to obtain a voltage value needing to be judged, and the voltage value needs to be judged. And the voltage value needing to be judged is sent back to the MCU control circuit, and the negative slope value of the voltage value needing to be judged and time and the negative slope fixed value are compared and analyzed, so that whether the power receiving end is a specified receiving load or not is judged.

The utility model discloses an automatic folding forming device of a flexible packaging container, which comprises a frame body, a driving motor connected with the frame body, a piston frame connected with the driving motor, a piston rod inserted in the piston frame, an external negative pressure vacuum device connected with the piston rod, a piston head connected with the piston rod, and a suction hole formed in the piston head. An external negative pressure vacuum device is communicated with the piston head through a piston rod, so that the suction hole has an adsorption effect, and the frame body is connected with a mold which is connected with a forming cup body. The device has the beneficial effects that the production efficiency is greatly improved; stable product quality is guaranteed; the production cost is obviously reduced; operation is convenient, and adaptability is high.

The utility model relates to the technical field of connection channel secondary lining construction, in particular to a connection channel secondary lining anti-disengaging formwork grouting device which comprises a connection channel, a primary support is arranged at the top of the connection channel, a waterproof plate is arranged on the lower surface of the primary support, solidified secondary lining concrete is arranged on the lower surface of the waterproof plate, and the secondary lining concrete is arranged on the lower surface of the waterproof plate. A lining trolley is slidably arranged at the bottom of the connection channel, a guide rail is fixedly connected to the top of the lining trolley, a sliding block is slidably connected to the surface of the guide rail, and a lining bottom plate is fixedly connected to the surface of the sliding block in a sliding mode. According to the utility model, the lining bottom plate and the lining side plate slide on the non-solidified secondary lining concrete through extrusion of the non-solidified secondary lining concrete, so that the compactness of the non-solidified secondary lining concrete injected between the waterproof plate and the lining bottom plate is guaranteed, the generation of cavities is avoided, the later void operation is prevented, the repair cost is avoided, and the construction efficiency is improved. And the construction period is shortened.

The utility model discloses a door plate connecting mechanism and a garage door comprising the same. The door plate connecting mechanism comprises a fixing piece, a positioning pin shaft, a self-lubricating mute shaft sleeve and an anti-abrasion isolation piece. The fixing piece is of a long-strip structure with one end provided with a step-shaped protruding part, a fixing hole fixedly connected with the door piece is formed in the center of the long-strip structure, a first positioning hole is formed in the step-shaped protruding part, and a second positioning hole composed of a round hole and an oblate hole is formed in the other end of the long-strip structure. And when every two adjacent fixing pieces are overlapped end to end, after the positioning pin shafts penetrate through the circular holes of the first positioning holes and the second positioning holes, the positioning parts are clamped into the oblate holes, and connection and positioning of every two adjacent fixing pieces are achieved. The connecting structure can meet the connecting and positioning requirements when fixing pieces are connected end to end, and is ingenious in structure, convenient to machine and beneficial to assembly; and the structure is firm and the safety is high. And noise caused by friction between metal can be avoided, and the mute effect is excellent.

The invention discloses integrated mechanical equipment for livestock grain feed processing, and relates to the technical field of livestock grain feed processing, the integrated mechanical equipment comprises a processing box, a first fixing plate is arranged at the front end of the processing box, a servo motor is arranged at the upper end of the first fixing plate, and the output end of the servo motor penetrates through the first fixing plate and is provided with a worm; a worm gear is meshed with one side of the worm, a first rotating rod is arranged in the worm gear, a first gear is arranged on the outer surface of the first rotating rod, a plurality of second gears are meshed with the left side of the first gear, a second rotating rod is arranged in the second gear at the leftmost end, and smashing rollers are arranged at the rear ends of the first rotating rod and the second rotating rod. The integrated mechanical equipment for processing the animal husbandry grain feed is driven by a single servo motor, so that three links of crushing, screening and impact refining treatment can be accurately and integrally operated, the continuity and coordination of grain feed processing are ensured, and the processing efficiency of grain feed is improved.

The utility model discloses an output pole base and battery module belong to battery technical field. The output pole base includes: base structure and connecting structure, connecting structure movable installation is in the base structure, and connecting structure can be along target direction relative to base structure removal, and base structure has first cooperation piece, and connecting structure has second cooperation piece, and second cooperation piece is used for when connecting structure removal to with the position of connecting with the busbar and first cooperation piece snap connection. Through setting the output pole base of self height adjustable, make the output pole base can nimble adaptation different structure's battery module and different use environment under the electrical clearance, can compensate the influence of air dielectric strength drop under high altitude environment, avoid the busbar and the end plate between in different use environment under electric breakdown. Meanwhile, the output pole base of self height adjustable can overcome the cumulative tolerance in manufacturing and assembly to the reliability of the battery module of using this output pole base is improved.

The embodiment of the invention is suitable for the technical field of block chains, and provides a block chain transaction cancelling method and device and a block chain transaction system.The method comprises the steps that a transaction cancelling request is received, and the transaction cancelling request carries transaction hash of a to-be-cancelled target transaction; deleting the target transaction from a local transaction pool of a target node, wherein the target node is a node initiating the target transaction in the block chain; storing the transaction hash of the target transaction to a transaction cancelling cache pool of the target node; and generating a transaction cancel event for the target transaction, and broadcasting the transaction cancel event to other nodes in the block chain. Through adoption of the method, the target transaction to be cancelled can be deleted in the local transaction pool, and the transaction cancellation event generated for the target transaction is broadcasted to other nodes, so that the target transaction is cancelled, and the flexibility of block chain transaction cancellation is improved.