230results about How to "Avoid wasting resources" patented technology

The utility model discloses an electric power test clamp for electric power detection, which comprises a test clamp body, the outer side of the test clamp body is rotatably connected with a rotating shaft, the front end of the test clamp body is fixedly connected with two groups of clamping mechanisms, and the test clamp body is respectively and fixedly connected with a protective sleeve through the two groups of clamping mechanisms. The opposite sides of the two sets of protective sleeves are fixedly connected with test tool bits. According to the electric power test clamp for electric power detection, the test clamp body is prevented from rebounding through limiting locking between the rack and the limiting teeth, inaccurate test data caused by looseness of the test tool bit is avoided, mutual clamping between the lower clamping plate and the upper clamping plate can be relieved through cooperation of the nut and the bolt, and the test clamp is convenient to use. And through cooperation between the connecting head and the connecting groove, the test tool bit can be conveniently replaced, and resource waste caused by overall replacement of the test clamp is prevented.

The invention discloses an electric energy meter full-performance test task allocation management method and system. The method provided by the invention comprises the following steps: constructing a resource state matrix and a resource dependency matrix by monitoring and acquiring the state characteristics of test resources and the dependency relationship among the test resources in real time, and calculating the initial utilization rate of the test resources by using a resource utilization rate calculation algorithm; calculating the priority of the task by using a priority evaluation algorithm; calculating a matching priority between the task and the test resource by using a bidirectional matching priority calculation algorithm, performing a preliminary decision of task allocation, and constructing a task allocation matrix; and calculating by using a task allocation balance optimization algorithm to obtain a target function, further optimizing task allocation by using a gradient descent method, and calculating to obtain updated task allocation matrix elements. According to the method, the current state and the mutual dependency relationship of each test resource can be accurately mastered, and resource waste and test task failure caused by incomplete or wrong information during task allocation are avoided.

The invention provides a spark plug service life prediction method and device, terminal equipment and a medium. The method comprises the steps that periodic driving parameters of a vehicle in a detection period are acquired; according to the periodic driving parameter, determining a periodic attenuation rate corresponding to a spark plug of the vehicle in the detection period; and determining the residual service life of the spark plug according to the initial attenuation rate and the periodic attenuation rate. According to the method, the residual service life of the spark plug can be periodically and accurately predicted, and whether the spark plug needs to be replaced or not is periodically judged, so that resource waste caused by premature replacement of the spark plug can be avoided, the spark plug can be timely replaced, and normal operation of a vehicle is guaranteed.

The utility model discloses a production device capable of overcoming ferrite stainless steel hot rolling soft and hard edges, which comprises a fixed check block arranged on a supporting leg, a plurality of supporting frames arranged between the fixed check block and the supporting leg, a movable check block movably installed on the supporting frames in a meshed mode, and a two-way screw movably installed at the bottom of the movable check block in a meshed mode. The two-way screw penetrates through a through hole in the bottom of the fixing check block and is installed on the supporting legs on the two sides through bearings, one end of the two-way screw is fixedly connected with the output end of the motor, the motor is fixedly installed on one side of the supporting leg, and the movable bottom plate is installed on the supporting leg below the supporting frame. The other end of the hydraulic telescopic rod is movably installed on the supporting leg. According to the utility model, the adjustable movable baffle blocks are matched with the fixed baffle blocks, so that the storage work of steel coils with various specifications and diameters can be realized, and a plurality of adjustable movable plates are arranged between the fixed frames, so that the contact between the steel coils and air can be adjusted, and the purpose of controlling the cooling speed of the steel coils is achieved.

The invention discloses an injection-blowing integrated blow molding device with a quick demolding function, which belongs to the technical field of blow molding devices and comprises a blow molding mold, a mold opening and closing device, a cooling system, intelligent sensing equipment, a side pushing device, a lifting device, a front-back pushing device, a spraying and demolding integrated device, an angle adjusting device and a spraying adjusting device. In the injection-blowing integrated blow molding process, after injection-blowing of a required product is completed, whether the product is smoothly demolded or not can be detected, so that injection-blowing operation of a next product is accurately carried out, continuous operation can be carried out after the product is monitored to fall off, and if the product is detected not to fall off, the injection-blowing operation can be continuously carried out. A product is smoothly demoulded through cooperative operation of a pushing device, a lifting device, a front-back pushing device, a spraying and demoulding integrated device, an angle adjusting device and a spraying adjusting device, and a demoulding agent is uniformly sprayed into a blow molding mould after the product is demoulded, so that smooth demoulding operation after the next product is finished is helped.

The utility model discloses a multifunctional art knife tackle, relates to the art knife technical field, the art knife tackle comprises an auxiliary handle and a knife handle, the front end of the auxiliary handle is fixedly connected with the knife handle through a connecting piece, the inside of the knife handle is fixedly provided with an embedded part, the inside of the embedded part is provided with a knife groove, and the knife groove is fixedly connected with the knife handle. An art knife body is slidably mounted in the knife groove, and a through hole is formed in the right end of the art knife body; an adjusting structure is arranged in the embedded part, the through hole is aligned with the threaded opening, and an adjusting bolt penetrates through the through hole to enter the threaded opening, so that the art knife body is convenient to replace; an auxiliary structure is arranged at the left end of the auxiliary handle, and distance values are marked at the front end of an auxiliary part, so that a worker can quickly know the distance between the auxiliary part and the art knife body and the distance between the auxiliary part and the hook knife, the worker can tightly attach the auxiliary part to one end of an object, and the straight cutting route of the art knife body is ensured; and a machining structure is arranged at the right end of the auxiliary handle, so that a worker does not need to carry various tools.

The invention provides a carburized ethylene cracking furnace tube residual life prediction method based on small punched hole outer surface sampling. The method comprises the following steps: sampling the outer surface of an in-service ethylene cracking furnace tube by using a small punched hole sampling machine; performing a small-punching high-temperature creep test on the sample; carrying out equivalent stress conversion based on a creep test result; establishing an outer surface residual life prediction equation; calculating furnace tube stress and substituting the furnace tube stress into the prediction equation to obtain outer surface residual life; performing carburization-creep finite element simulation on the furnace tube of the ethylene cracking furnace; obtaining a furnace tube damage distribution condition of a finite element test result; and the overall residual life prediction is completed through the outer surface residual life and the damage distribution relationship. According to the method, furnace tube interruption or production halt is avoided, time and cost are saved, residual life prediction is carried out based on actual sampling and finite element data analysis, and the method has high reliability and accuracy and is used for early warning and maintenance decision making in advance, prolonging the service life of equipment and avoiding resource waste and accidents.

The invention relates to the technical field of coal mining, in particular to an improved unconstrained nonlinear programming probability integral parameter test method, which comprises the following steps of: inputting working face position parameters, actual measurement data and geological mining parameters; according to the method, robust estimation is applied to unconstrained nonlinear programming inversion probability integral parameters, and a weight adjustment mechanism is introduced, so that the sensitivity to abnormal values is reduced. The method is beneficial to weakening adverse effects of abnormal values on unknown number estimation to a certain extent, so that the estimation stability is improved, the method has the advantages of being high in parameter obtaining precision and good in curve fitting effect, meanwhile, the method has good parameter estimation performance and stability and strong anti-interference capability, and the method has good application prospects to a certain extent. According to the method, data of incomplete and nonstandard observation stations can be effectively utilized, the accuracy and reliability of parameter inversion can be ensured, incomplete data can be fully utilized, and resource waste is avoided.

The invention discloses waste water recycling equipment for corrugated board production, and relates to the technical field of waste water treatment.The waste water recycling equipment comprises a settling box, a water outlet pipe is fixedly connected to one side of the settling box, a water inlet pipe is fixedly connected to the side, away from the water outlet pipe, of the settling box, and sliding grooves are symmetrically formed in the upper end face of the settling box; the liquid collecting box can be driven to move intermittently and equidistantly on the upper end face of the settling box, a flocculating agent in the liquid collecting box is uniformly sprayed on wastewater in the settling box, the flocculating agent can be uniformly sprayed to all corners of the settling box, and the problem that the local concentration is too high or too low due to direct feeding through a traditional single inlet is solved; the uniform distribution enables the flocculation reaction in the wastewater to be more consistent, and the obvious difference of flocculation effects among different areas is reduced, so that floating matters and suspended matters in the wastewater are more effectively removed, the overall efficiency of wastewater treatment is improved, the quality of the treated wastewater is improved, and the wastewater is more in line with environmental protection standards and subsequent treatment requirements.

The invention discloses a network card automatic binding method and device, equipment, a medium and a program product, and relates to the field of computer network communication. The method comprises the following steps: acquiring network card binding configuration; the network card binding configuration comprises working mode information and physical network card port information of at least two physical network cards; determining a corresponding target physical network card according to the physical network card port information; generating a configuration request according to the working mode information and the interface address of the target physical network card, sending the configuration request to a switch, and determining a target port corresponding to the interface address of the target physical network card on the switch by the switch, the target port is set to be in a corresponding port aggregation state according to the working mode information; and configuring the target physical network card according to the working mode information so as to bind all the target physical network cards. According to the invention, automatic binding of ports at the network card side and the switch side can be realized, and the efficiency and accuracy of network card binding are improved.

The utility model discloses a traditional Chinese medicine effective component purification device which comprises a workbench, the top of the workbench is fixedly connected with an extraction cylinder, the interior of the extraction cylinder is rotatably connected with a filter cylinder, the bottom of the workbench is fixedly connected with an operation cabinet, and an extraction mechanism is arranged in the operation cabinet; the extracting mechanism comprises a first motor, one side of the top of the workbench is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with the first motor, the output end of the first motor is fixedly connected with a first bevel gear, and the interior of the workbench is rotationally connected with a first connecting rod; a first bevel gear is fixedly connected to the top of the first connecting rod, a second bevel gear is fixedly connected to the top of the first connecting rod, the first bevel gear and the second bevel gear are in meshed connection, and the bottom end of the first connecting rod penetrates through the operation cabinet body and is fixedly connected with an arch-shaped frame.

The utility model relates to the technical field of traffic tools, and disclose an electric tricycle front wheel brake assembly, including: fixed ring, the inside of fixed ring outer surface is pasted with dish disc. This electric tricycle front wheel brake assembly, aiming at the defect that traditional integral brake disc cannot be replaced locally, innovatively adopts modularization design to brake disc, is divided into four parts on average, and users can accurately disassemble and replace the seriously worn dish disc according to the actual wear condition of each part, avoid the resource waste caused by replacing the entire brake disc due to local wear, greatly reduce the maintenance cost, and in the convenience of disassembly, the unique disassembly mechanism plays a key role, through the simple screwing of the nut, the disassembly of the screw, the rotation of the clamp and other operations, the locking of the dish disc can be quickly released, and it is taken out from the fixed ring, the whole process does not need complex professional tools, and does not need professional technical personnel operation, significantly improves the maintenance efficiency, and reduces the maintenance difficulty.

This utility model discloses a chassis protection frame in the field of personal mobility scooter technology, including a chassis, a mounting frame on the underside of the chassis, a mounting groove on the outer side of the mounting frame, multiple sets of protective frames inside the mounting groove, two sets of positioning blocks fixedly mounted on the upper side of each set of protective frames, and two positioning grooves for mating the positioning blocks on the upper side of the mounting groove. The positioning blocks are movably inserted into the positioning grooves. Mounting holes are provided through the outer sides of the mounting frame and positioning blocks, and fixing rods are movably inserted into the inner side of the mounting holes. The outer sides of the fixing rods, located on both sides of the mounting frame, are provided with threaded surfaces, and locking nuts are threaded onto the outer sides of both sets of threaded surfaces. This utility model, through its simple installation structure, facilitates the assembly and disassembly of the protective frame, improves the ease of installation and disassembly, reduces workload, and increases work efficiency. Furthermore, it allows for easy replacement of damaged parts, effectively reducing maintenance costs and avoiding resource waste. Its practical effect is excellent and worthy of promotion and use in the current market.

This utility model relates to the technical field of deep-root solid fertilizer application devices for roadside trees, and in particular to a deep-root solid fertilizer application device for roadside trees, comprising a controller, a device housing, a solid fertilizer storage bin, a ditching and mixing mechanism, and a backfilling and compaction mechanism; the controller is electrically connected to the solid fertilizer storage bin, the ditching and mixing mechanism, and the backfilling and compaction mechanism; the device housing contains a solid fertilizer storage bin, a ditching and mixing mechanism at the bottom, backfilling and compaction mechanisms on the front and rear sides, and a push rod on the left side; the controller is mounted on the push rod; the solid fertilizer storage bin is connected to the ditching and mixing mechanism, which includes a guide hole drilling component and a fertilizer discharge component. This utility model, taking into account the small size of roadside tree pits, the need for on-site hardening, and the high density of the soil, meets the practical needs of simple on-site operation, time and labor saving, and low investment, achieving the effects of precise fertilization, deep fertilization, automated backfilling and compaction, and modular and convenient operation.

The utility model provides a waterproof and drop-resistant express bag convenient for secondary use. The waterproof and drop-resistant express bag comprises a paper bag body with a bag opening and a tongue opening used for sealing the bag opening, folding handles which can be movably turned out of a bag opening are arranged on the two sides in the paper bag body; the section of the paper bag body sequentially comprises a first functional layer, a paper base material layer and a second functional layer from inside to outside, and the second functional layer is a waterproof layer. The express bag has the advantages that the paper base material layer is matched with the second functional layer, so that the waterproof and anti-falling performance of the express bag can be effectively improved, and the express bag is not prone to being abraded and damaged in the transportation process or in cloudy and rainy days; and meanwhile, after the bag opening is opened to take out the express, the folding handle can be turned out of the bag opening to form a hand bag, so that secondary use of the express bag can be well realized, and resource waste is avoided.

The application provides a steel bridge part manufacturing method, device, equipment and medium, and relates to the technical field of bridge manufacturing. The method comprises the following steps: acquiring basic information corresponding to each plate part in a steel bridge; generating a contour map of the plate part based on a three-dimensional model of the plate part, determining a target allowance corresponding to the plate part by using process attribute information and a preset allowance addition rule library, and modifying the contour map to obtain a target contour map according to the target allowance; generating a layout scheme based on the target contour maps corresponding to all plate parts; generating a processing instruction according to the layout scheme, and sending the processing instruction to a corresponding preset processing equipment, so that the preset processing equipment processes a mother plate according to the processing instruction. The application can realize integrated operation of each manufacturing link of the steel bridge part, and effectively improve the efficiency and quality of the steel bridge part manufacturing.

The utility model relates to a deviation rectifying structure for a coiled material production line. The deviation rectifying structure comprises edge cutting assemblies arranged on the two sides of the coiled material production line correspondingly and a deviation rectifying assembly arranged between the two edge cutting assemblies. The deviation rectifying assembly comprises an adjusting shaft fixedly connected with the edge cutting assembly, a traction roller is coaxially and fixedly connected to the adjusting shaft, and a fixing assembly for stably fixing the edge cutting assembly to the coiled material production line is arranged on the edge cutting assembly. The coiled material cutting device has the technical effect that self-adaptive deviation correction can be conducted in the coiled material cutting process.

The utility model is suitable for the field of natural gas purification and recovery equipment, and provides a natural gas recovery device which comprises an outer shell and a heating bin in the outer shell, and a gap is formed between the heating bin and the outer shell; wherein a plurality of filtering devices are arranged, and each filtering device comprises two separation blades and molecular sieve filler between the two separation blades; a heating cavity is formed in the heating bin; an air inlet penetrating out of the outer shell and an exhaust port communicated with the interior of the outer shell are formed in the top of the heating bin and are communicated through a plurality of parallel heat conduction pipes in the heating cavity; a liquid inlet and a liquid outlet are formed in the heating bin; a plurality of groups of air outlets are formed in the outer shell. Therefore, the natural gas can be fully heated, and the heating adsorption efficiency of water vapor is improved. Meanwhile, workers can flexibly adjust the number of the passing filtering devices according to the flowing speed and the heating efficiency of the natural gas, quantitative distribution of the adsorbent is achieved, and resource waste caused by insufficient or excessive adsorbent is avoided.

The present invention relates to the field of photovoltaic glass manufacturing, and in particular to a rolling device for photovoltaic glass. It includes a bottom plate, a support frame I, a slide plate, an electric push rod, a rotating frame, rollers, etc. The support frame I is installed on the bottom plate, the slide plate is slidably arranged on the support frame I, the electric push rods are symmetrically installed on the slide plate, the rotating frame is rotatably installed between the telescopic rods of the electric push rod, and the rotating frame is symmetrically rotatably arranged with rollers, and the rollers are used to roll on the frame I. After the molten glass liquid is rolled, the present invention can continuously hold the head end of the glass ribbon through the supporting blocks I and II, which not only saves time and labor, but also has high safety. By heating the blocking frame that blocks the molten glass liquid, the temperature of the outer wall of the blocking frame is gradually increased. Then, by utilizing the characteristic that the temperature difference between the outer wall of the blocking frame and the molten glass liquid is small, the molten glass liquid can be prevented from solidifying and adhering to the outer wall of the blocking frame, thereby avoiding waste of resources.

The automobile exhaust pipe with the heat insulation and sound reduction structure comprises an exhaust pipe body and a heat insulation cover, the heat insulation cover is arranged in the outer surface of the exhaust pipe body in a sleeved mode, the heat insulation cover is composed of a left shell and a right shell, the bottom ends of the left shell and the right shell are hinged, and connecting blocks are arranged at the tops of the left shell and the right shell. The top of the left shell and the top of the right shell are connected through cooperation of connecting blocks and bolts, an arc-shaped left heat conduction plate and an arc-shaped right heat conduction plate are symmetrically arranged in the heat insulation cover and are movably connected with the left shell and the right shell through a plurality of positioning rods correspondingly, and the portions, located at the ends of the positioning rods, in the left shell and the right shell are provided with heat conduction holes. The limiting box is connected with the positioning rod in a sliding mode and prevents the positioning rod from falling off, and the positioning rod is sleeved with a spring. The heat dissipation device has the advantages of being good in heat dissipation effect, capable of protecting the exhaust pipe, convenient to install and the like.

This invention discloses a multi-stage residual film separation device, comprising a feeding belt, a first separation mechanism, a shredding and separation mechanism, a second separation mechanism, a discharge belt, and a collection tank. The shredding and separation mechanism is equipped with an inlet, an upper discharge outlet, and a lower discharge outlet. The feeding belt and the discharge belt are respectively connected to the inlet and lower discharge outlet of the shredding and separation mechanism. The second separation mechanism is connected to the upper discharge outlet of the shredding and separation mechanism. The first separation mechanism is connected to the feeding belt. A collection tank is provided at the outlets of the first and second separation mechanisms. This invention employs a multi-stage separation method to separate different types of residual film, achieving effective separation of different types of residual film. This avoids both excessive impurities in the separated residual film and excessive residual film in the waste impurities, thus preventing resource waste.

The utility model discloses a raw material screening device for heavy calcium powder production, which comprises a screening assembly, a screening assembly and a screening assembly, the collecting assembly comprises a connecting pipe, a dust hood, a butt joint pipe, a fan, a hose and a collecting box; the connecting pipe penetrates through and is fixed to the two sides of the top end of the top cover, the dust hoods are fixed to the bottom ends of the two ends of the inner side of the connecting pipe, the butt-joint pipe is fixed to the center of the opposite end of the connecting pipe, the fan is fixed to the outer side end of the butt-joint pipe, the hose is fixed to the other end of the fan, and the collecting boxes are placed on the two sides of the top end of the top cover and located below the hose. According to the powder collecting device, the collecting assembly is arranged, the draught fan starts to operate, the dust suction hood sucks scattered powder on the inner side of the device, the powder enters the collecting box through the connecting pipe, the butt joint pipe, the draught fan and the hose, and therefore the scattered powder is collected, and when the collecting box is filled with the powder, the hose is separated from the collecting box; and therefore, the powder in the collecting box can be conveniently treated, and waste of powder resources is prevented.

The utility model relates to the technical field of mask essence filling, in particular to automatic mask filling equipment. The automatic mask filling equipment comprises a machine box, a square groove is formed in the front face of the machine box, a servo motor is fixedly installed on one side of the machine box, a bidirectional lead screw is fixedly connected to the output end of the servo motor, and the outer surface of the bidirectional lead screw is in threaded connection with moving blocks which are arranged side by side. According to the mask opening device, the bidirectional lead screw and the supporting block are arranged, the supporting block can open mask bags to facilitate essence liquid filling, then the fastening bolt is used for adjusting the horizontal distance between the fixing block and the inner wall of the supporting block, and therefore the mask bags made of different materials can be opened, and the practicability of the mask opening device is improved; and an electric telescopic rod, a sealing piece and an air cylinder are arranged, the mask bag is sealed, and the problems that manual sealing is not in place and the production efficiency is low are solved.

This application relates to the field of soil remediation technology, and discloses a method, system, and storage medium for real-time monitoring of soil remediation effects. The method includes: collecting multi-depth data samples of soil in the vertical direction to construct a stratified soil characteristic dataset; identifying locations of highly heterogeneous sections based on the dataset; injecting a tracer at these locations and imaging in real time to obtain a sequence of infiltration path images; using a random forest model to predict diffusion velocity and blockage point locations, dynamically adjusting injection parameters to eliminate blockage, and obtaining infiltration path data; tracking and quantifying the effects of the soil amendment on each soil layer through time-series analysis to obtain quantitative indicators of the effect; comparing these indicators with the initial dataset to optimize the stratification model and construct a stratified monitoring framework; integrating multi-depth data samples to validate the framework and generating an evaluation report on the soil remediation effect. This invention achieves accurate characterization of soil vertical stratification characteristics and scientific, quantitative evaluation of remediation effects, improving the efficiency of soil amendment use.

The utility model relates to the technical field of polyester fabrics, and discloses a dyeing water-saving device for polyester fabric production, which comprises a dyeing pool, a plurality of inclined plates are fixedly connected to the side end of a first limiting plate and the side end of a second limiting plate, a limiting mechanism for fixing the second limiting plate is arranged at the side end of the first limiting plate, and the inclined plates are fixedly connected to the side end of the second limiting plate. By means of the arrangement of the limiting mechanism and the lifting assembly, polyester fabric can be conveniently placed into the position between the two inclined plates from the limiting part, and by means of the arrangement of the pulling mechanism, the polyester fabric can be conveniently pulled out from the limiting part, and the polyester fabric can be conveniently pulled out from the limiting part to the position between the two inclined plates to the position between the two inclined plates to the position between the two inclined plates to the position between the two inclined plates. And after the stretching plate moves out of the limiting groove, the polyester fabric can conveniently penetrate through the space between every two inclined plates at the side ends of the first limiting plate and the second limiting plate, and therefore personnel can conveniently pull the polyester fabric between the multiple sets of inclined plates to achieve extrusion dewatering.

The utility model discloses a drinking water filter element, relates to drinking water treatment technical field, including mounting plate and install first shell on the rear surface of mounting plate, the upper end of first shell is fixedly connected with the water inlet pipe, the lower end of water inlet pipe is fixedly connected with two water passing pipe, and the lower end of water passing pipe is equipped with the valve head, the valve head is equipped with the water passing pipe. The lower end of the water passing pipe is in threaded connection with a core shell, an inner filter element is arranged in the core shell, and a transparent rubber shell is arranged on the outer circle face of the core shell. Compared with an existing common drinking water filter element, the drinking water filter element has the advantages that the mounting plate is mounted on a drinking water device, the water inlet hose is connected to the water inlet pipe in the mounting groove, and the valve head at the lower end of the water passing pipe is alternately opened, so that the aim of dismounting the filter structure without shutdown is fulfilled; a user can observe the service life condition of the inner filter element in the element shell through the observation mechanism, so that resource waste caused by premature replacement can be avoided while the purpose of timely replacement is achieved.

The invention relates to the technical field of traffic engineering, and discloses a dynamic weighing system deployment method suitable for an expressway entrance and exit, and the method comprises the following steps: providing at least one weighing lane which is arranged at the expressway entrance and exit and is used for weighing vehicles passing through the expressway entrance and exit; when a passing vehicle is driven into the weighing lane, identifying the information of the passing vehicle; matching the use state of the weighing lane according to the passing vehicle information, and switching the weighing lane to the corresponding use state; calculating weight data of the passing vehicle based on a calculation rule corresponding to the use state of the passing vehicle; weight data calculated based on passing vehicles are processed through a weighing instrument. Through the switching of the isolation assembly, the weighing lane can be flexibly switched between a large transport vehicle and a common vehicle, and the resource waste caused by independently setting a special channel for the large transport vehicle is avoided.

The invention provides a liquefied petroleum gas cylinder tracking integrated system and method, relates to the technical field of gas cylinder management, and aims to solve the problems that in the existing gas cylinder tracking technology, only a single link of gas cylinder tracking is considered, the gas cylinder tracking process is incomplete, a bar code, a two-dimensional code and the like are easy to pollute and damage at the same time, so that information reading fails, and the gas cylinder tracking efficiency is low. And gas cylinder tracking cannot be realized. The system comprises an NFC label used for writing liquefied petroleum gas cylinder specification archive data, a cloud server used for storing the gas cylinder archive data and gas cylinder operation log data, and an NFC reading terminal used for identifying the gas cylinder data in the NFC label, binding operation information of an operator in the tracking process with the gas cylinder data in the NFC label and uploading the information to the cloud server. Through cooperation of the NFC label, the NFC reading terminal, the cloud server and the traceability platform, tracking of the whole process of activation, filling, distribution and the like of the gas cylinder is achieved, and the problem that information reading fails due to pollution and damage of bar codes and the like is solved.

The invention discloses a concrete retaining wall and a construction method thereof.The concrete retaining wall comprises a concrete retaining wall body, and at least one reinforcing rib is embedded in the concrete retaining wall body; the decoration layer covers the outer vertical face of the concrete retaining wall body, the decoration layer comprises at least one prefabricated plate, and all the prefabricated plates are continuously or discontinuously installed on the outer vertical face of the concrete retaining wall body from bottom to top in the height direction of the concrete retaining wall body; each prefabricated slab comprises a consolidation layer and a plurality of decoration pieces, the part, not exceeding two parts of the height, of each decoration piece is embedded in the consolidation layer, and the remaining part of each decoration piece can be embedded in the outer vertical face of the concrete retaining wall body; by means of the precast slabs, the bonding strength between the cobblestones and the concrete retaining wall body is enhanced, the problems that in a traditional construction mode, new and old materials are not firmly bonded and are prone to separation and falling off are solved, the decoration and protection effects of the concrete retaining wall are guaranteed, the requirement for high-altitude operation is reduced, the construction difficulty and potential safety hazards are reduced, and the construction cost is saved; and resource waste is avoided.