84results about How to "Increase time cost" patented technology

The invention belongs to the technical field of distributed optical fiber sensing, and particularly relates to an OFDR system phase noise compensation device and method based on an or equivalent optical fiber loop auxiliary interferometer. The optical fiber 2 * 2 coupler and the delay optical fiber form a loop and serve as a delay optical path of the auxiliary interferometer, the optical delay can be doubled every time laser passes through the loop, and therefore a plurality of beat frequency signals with different optical delays are obtained. And according to the to-be-measured optical fibers at different distances on the main interferometer, the beat frequency signal of the auxiliary interferometer with the closest optical delay is selected for compensation. And splicing the compensated reflected signals at different distances to obtain a distance domain reflected signal of the whole sensing optical fiber, thereby realizing phase noise compensation in the full range of the OFDR system. The OFDR full-range high-precision measurement is realized, and the OFDR full-range high-precision measurement device has the characteristics of simple structure, stable performance, low manufacturing cost and the like.

The invention discloses a PSO-based multi-conditional constraint gas storage injection-production scheme optimization method and computer equipment, and relates to the technical field of energy storage, and the PSO-based multi-conditional constraint gas storage injection-production scheme optimization method mainly comprises the following steps: according to core data, logging data, seismic data and static fluid data of a gas storage, obtaining a PSO-based multi-conditional constraint gas storage injection-production scheme; a gas storage three-dimensional geologic model and a gas storage fluid model are constructed, fitting and inversion are performed by using a numerical simulation method and historical production data, a gas storage injection-production well is selected as an injection-production optimization object, an optimization model, a gas storage operation objective function and a multi-constraint condition are constructed, and an optimal injection-production allocation scheme is obtained by using a particle swarm algorithm. According to the multi-condition constraint gas storage injection-production scheme optimization method based on PSO and the computer equipment, the single-well injection-production gas quantity can be optimized, the gas storage production allocation scheme design is achieved, and long-term stable and safe operation of the gas storage is guaranteed.

The invention discloses a composite laminated waterproof coating preparation device, and relates to the technical field of multilayer film deposition. A main body adopts a double-layer chamber design, an ALD gas inlet unit and a Parylene gas inlet unit are introduced into the double-layer chamber at the same time, a low-temperature fluid gas inlet unit is connected between the double-layer chamber, a sample needing to be coated is placed on a sample support in the chamber, rapid cooling of the chamber is achieved through low-temperature fluid (such as liquid nitrogen), the cooling waiting time after a coating is deposited is shortened to the maximum extent, and the coating quality is improved. And the preparation efficiency of the composite laminated waterproof coating of the ALD coating and Parylene is improved. And meanwhile, the equipment has a rapid cooling capability, so that the preparation of the composite laminated waterproof coating at different deposition temperatures of the sample can be efficiently realized.

The invention discloses flexible battery piece slitter edge removing equipment, a flexible battery piece slitter edge removing method and a battery production line, and relates to the technical field of flexible batteries. The flexible battery piece slitter edge removing equipment comprises a rack, a conveying device and a slitter edge removing device, wherein the conveying device and the slitter edge removing device are installed on the rack. The flexible battery piece is clamped through the jacking mechanism and the pressing and holding mechanism, then the waste edge of the flexible battery piece is subjected to bidirectional pushing and breaking through the first pushing and breaking mechanism and the second pushing and breaking mechanism in sequence, so that the waste edge is broken along a waste edge crack on the flexible battery piece, the waste edge removing efficiency is effectively improved, the labor cost and the time cost are reduced, the automation degree is high, and the production efficiency is improved. And moreover, the pushing and breaking force is uniform, and the quality of the flexible battery piece is ensured.

The invention discloses a water source sampling device for ecological environment monitoring, and relates to the technical field of sampling devices.The water source sampling device comprises a bottom plate, four moving wheels are rotationally arranged below the bottom plate, the bottom plate is vertically connected with the first end of a supporting rod, and the right side of the second end of the supporting rod is vertically connected with the first end of a first electric push rod; the second end of the first electric push rod is vertically connected with a supporting plate, the lower portion of the supporting plate is connected with a second electric push rod and the first end of a telescopic rod, the second electric push rod and the second end of the telescopic rod are connected with one end of a transverse plate of the same L-shaped plate, one end of a vertical plate of the L-shaped plate is vertically connected with the first end of a first mounting plate, and the second end of the first mounting plate is connected with a second mounting disc. A first mounting disc is arranged above the second mounting disc, and a same filter screen is arranged between the first mounting disc and the second mounting disc; a crushing mechanism for crushing sundries is arranged on the outer side of the filter screen; the device is simple and reliable in structure, good in water source sample sampling effect, convenient to control and suitable for popularization.

The invention relates to a method for preparing a heterostructure magnesium alloy based on low-temperature friction stir additive in the field of metal processing, and designs a high-quality and high-efficiency cooling tool, which mainly comprises the following steps: firstly, cooling alcohol to low temperature by using liquid nitrogen; then the magnesium alloy plate to be machined is fixed to a cooling tool in a lap joint mode, and the tool mainly comprises a device body (1), a cooling liquid inflow hole (2), a cooling liquid outflow hole (3), a workpiece containing groove (4), a liquid storage chamber (5), a pressing plate (6) and fastening screws (7); then low-temperature alcohol is introduced, an advancing path and technological parameters are set, first-layer stirring friction additive manufacturing is conducted, and in the machining process, a stirring head and a workpiece are always kept to be submerged in cooling liquid; then, the surface obtained after material adding is milled to be flat, a layer of plate is overlaid on the other unmachined surface again, and the plate is fixed into the workpiece containing groove; and finally, second-layer friction stir additive manufacturing is conducted on the other face of the plate according to the same parameters and the same path. The method can be suitable for additive manufacturing of low-melting-point metal such as magnesium alloy and aluminum alloy at the same time, the multi-scale gradient heterostructure magnesium alloy can be prepared at the same time, the preparation efficiency is improved, and high-quality and low-cost preparation of heterostructure materials is achieved.

A threshing mechanism of the small-grain type bean combine harvester is used for separating grains from straw and threshing the grains, a screening mechanism is located below the threshing mechanism and used for receiving the grains, and a first receiving mechanism and a second receiving mechanism are sequentially arranged below the screening mechanism. The material screening mechanism enables grains to be conveyed from front to back through vibration, the grains which are successfully threshed leak the material screening mechanism and fall into the first material receiving mechanism, the first material receiving mechanism is connected with the grain box to collect the grains, and the grains which are not successfully threshed fall into the second material receiving mechanism from an outlet of the material screening mechanism. The second material receiving mechanism is connected to the threshing mechanism and is used for conveying unsuccessfully threshed grains back to the threshing mechanism for re-threshing operation; and the discharging fan works to provide wind power, so that the straws and the threshed shells are blown to the grass collector at the output end. The process of screening and threshing is mechanically completed, seed collection and impurity collection are completed, manual operation is replaced by a machine, the harvesting efficiency is improved, and the labor cost is reduced.

The invention provides a defluorination method and a film deposition method for recovering the first round efficiency of a graphite boat. The defluorination method comprises plasma bombardment defluorination and / or high-temperature nitrogen purging defluorination. According to the defluorination method, washing and drying are not needed, efficient defluorination is achieved, meanwhile, the time cost is reduced, use of special gas is reduced, the production cost is saved, and large-scale application and popularization are facilitated.

The invention relates to the technical field of bridge rectangular pier body pouring, and discloses a bridge rectangular pier body steel bar positioning clamp which comprises a mounting frame. The four mounting openings are formed in the mounting frame, and each mounting opening is of a long-strip-shaped structure; the latches are fixed in the four mounting ports respectively, and the latches located in the same row jointly form a zigzag structure; the sliding seats slide in the four mounting openings respectively, and a mounting groove is formed in the bottom surface of each sliding seat; the mounting cylinders are fixed to the top faces of the sliding seats correspondingly. By arranging the movable sliding seat, the construction flexibility and efficiency are greatly improved, and in the construction process of the rectangular pier body of the bridge, the positioning of reinforcing steel bars often needs to be accurately adjusted according to specific construction conditions and design requirements, so that the construction time and the labor cost are greatly saved.

The invention discloses a high-precision ball-end milling cutter. The high-precision ball-end milling cutter comprises a cutting blade, a cutter bar and a locking bolt, the cutting blade comprises an upper surface, a lower surface, a front peripheral surface, a rear peripheral surface, a bolt through hole, a first main cutting edge and a second main cutting edge, the upper surface comprises a first upper plane, a first upper inclined plane and a second upper plane which are connected in sequence, and the lower surface comprises a first lower plane, a second lower plane, a first lower inclined plane and a second lower inclined plane. A bolt counter bore penetrates through a cutter groove of the cutter bar, and boss structures are arranged on the two matching faces of the cutter groove respectively. The locking bolt is used for fixing the cutting blade and the cutter bar in a threaded mode. The cutting blade can improve the assembly precision and stability of the cutting blade and the cutter bar through the limiting among the second upper plane, the second lower plane, the first upper inclined plane, the first lower inclined plane and the cutter groove, and ensures that the cutting blade is mounted on the cutter bar in a correct assembly direction through the interference of the first lower plane and the second lower inclined plane.

The invention provides a preparation method of a front local passivation contact solar cell, and belongs to the technical field of solar photovoltaics. The preparation method comprises the following steps: providing a silicon substrate; preparing a tunneling layer on the front surface of the silicon substrate; preparing an amorphous silicon layer on the tunneling layer; performing first heat treatment on the target part; removing a non-target part region to obtain a local passivation contact structure on the front surface of the silicon substrate; and preparing the solar cell by using the local passivation contact structure on the front surface of the silicon substrate, namely the front surface local passivation contact solar cell. And fluorine-containing gas etching is adopted, so that the process can be simplified.

The invention particularly relates to a coil conveying trolley for conveying soft steel coils, and belongs to the technical field of steel coil conveying. The coil conveying trolley comprises a walking frame, a through hole is formed in one side of the walking frame, a lifting oil cylinder is connected to the center of the side face of the walking frame, the piston extending end of the lifting oil cylinder is connected with a supporting arm, the supporting arm is connected with a guide arm, and the end, vertically and upwards penetrating through the through hole, of the guide arm is connected with a cantilever frame. The coil conveying trolley further comprises an outer ring cooling water hose, a frame disc collecting pipe, a plurality of second nozzles and an internal cooling water hose, and an external water source is communicated with a water inlet of the outer ring cooling water hose and a water inlet of the internal cooling water hose through a three-way hose. Water spraying cooling can be synchronously carried out; and meanwhile, the soft steel coil can be transported and cooled at the same time, and the transportation rhythm is not reduced, so that the time cost of the whole transportation process is not increased.

The invention discloses an automatic titanium stud feeding device and method, and relates to the technical field of titanium anode product production. In order to solve the technical problems existing in the prior art that the feeding efficiency is low, the welding fluency is influenced and the time is wasted, which are generally caused by the precision problem of a manipulator, the low manual operation efficiency and the positioning problem of the titanium stud, of the existing feeding mode of the upright post type titanium stud. According to the technical scheme, the automatic titanium stud feeding device comprises a sliding rail used as a sliding rail of a titanium stud; the guide mechanism is used for limiting the sliding direction of the titanium stud; the pushing device is used for pushing the titanium stud located in the sliding rail; and the air cylinder is used for pushing up the titanium stud located at the end of the sliding rail. A robot arm; the mechanical arm is used for clamping the titanium stud pushed up by the air cylinder and conveying the titanium stud to a welding device. The automatic titanium stud feeding device provided by the invention is suitable for feeding the titanium studs in the welding process of the titanium studs and the titanium plates.

The invention belongs to the technical field of building and civil engineering, and particularly relates to a truss modeling method based on Revit secondary development. According to the method, rapid truss modeling is carried out by constructing a truss member standardized family library, manufacturing a truss member user operation interface, creating a truss space layout, creating a truss model, modifying the section type of the truss member, and then carrying out node processing, support setting and enclosure structure creation on the truss. According to the method, the modeling method is optimized by setting parameters, the three-dimensional modeling speed of the steel truss in Revit is high, the accuracy is high, node creation is efficient, and application of the BIM digital technology in complex steel structure design is promoted.

The utility model relates to the technical field of flow tube high-precision adjusting seats, and discloses a flow tube position high-precision adjusting seat convenient to install, which comprises a base, a supporting plate is arranged at the top of the base, an electric push rod is rotatably connected in the supporting plate, and the output end of the electric push rod is rotatably connected with a triangular block. A first rotating rod is rotatably connected to the side wall of the triangular block, a clamping block is rotatably connected to one side wall of the rotating rod, a supporting block is fixedly connected to the upper surface of the supporting plate, the clamping block is rotatably connected to the side wall of the supporting block, a second rotating rod is rotatably connected to the side wall of the triangular block, and the clamping block on the right side is rotatably connected to the side wall of the second rotating rod. A flow tube body is arranged in the supporting block, and the lower surface of the clamping block is attached to the upper surface of the flow tube body. According to the device, firstly, through cooperation between the supporting block and the second rotating rod, the effect that the flow tube is convenient to mount and dismount is achieved, and the working efficiency is improved.

The utility model relates to the technical field of medical instruments, in particular to a puncture outfit and a puncture system, which comprise a sealing assembly, a pneumoperitoneum hole and a circulating smoke exhaust assembly, the sealing assembly is of a hollow structure and is used for being attached to human tissue. One end of the pneumoperitoneum hole communicates with the hollow structure of the sealing assembly; the circulating smoke exhaust assembly comprises a smoke exhaust part and a gas injection part; one end of the smoke exhaust part communicates with the hollow structure of the sealing assembly; the smoke exhaust part is used for exhausting smoke gas in the abdominal cavity; one end of the gas injection part communicates with the hollow structure of the sealing assembly; the gas injection part injects filtered gas into the abdominal cavity, and the pressure is kept stable. Through the arrangement of the circulating smoke exhaust assembly, the problem that a single-port puncture outfit cannot achieve the circulating smoke exhaust function is solved, and then the problems that the operation time is prolonged and the environment of an operating room is polluted due to the smoke problem of a single-port laparoscopic operation are solved.

The application discloses an MCU controller violence cracking prevention system and method, comprising: a storage module which stores and updates a check failure count value in the non-volatile memory of the MCU; a response control module which returns a diagnosis negative feedback and triggers a delay timer to start according to the count value; a delay management module which sets a delay waiting time when the count value reaches a preset upper limit, and allows the request again after the timing ends; and a restart processing module which restarts the delay timer when the MCU is powered on or restarted and the count value is over the standard. The application solves the problem that the MCU is cracked by violence because the failure count is reset to zero due to the restart or session switching, and effectively improves the access security through the non-volatile storage and delay mechanism.

The invention discloses a traction cable circulating system which comprises a traction circulating system and a lifting system, the lifting system comprises a plurality of first winches, lifting cables and fasteners, the first winches are arranged at the positions where cable strands are anchored and placed on a splay cable saddle, and the first winches are connected through the arranged lifting cables; the guide cable is provided with a fastener which is fixedly arranged on the lifting cable, and the lifting cable is fixedly connected with the cable strand through the fastener; the lifting system is used for lifting a cable strand to the traction system; the traction system comprises a circulating cable, a traction piece and a second winch; a traction piece is fixedly arranged on the circulating cable and is used for pulling a fastener to fix a cable strand on the circulating system; the fastening piece and the traction piece are both provided with hooks which are meshed with each other in a grasping mode. The invention aims to solve the problem of quick connection of the cable strand and the traction cable system and improve the construction efficiency.

The invention relates to the technical field of supporting platforms, in particular to a supporting platform for mechanical arm masonry and a using method of the supporting platform. The technical problems that when an existing supporting platform moves, the stability of a mechanical arm on the upper portion can be affected, so that the operation precision of a mechanical arm is reduced or potential safety hazards are increased, the mechanical arm moves frequently, a supporting platform on the lower portion is affected, and the operation complexity and the time cost are increased are solved. According to the technical scheme, the supporting platform for mechanical arm masonry comprises a center ring, a supporting moving assembly, a deviation adjusting assembly, an adjusting assembly, a masonry clamping assembly and a protection abutting module. The supporting moving assembly can be used for supporting the whole to conduct moving supporting operation, the protection abutting-against module can be used for conducting external abutting-against supporting protection when the whole moves, steering balance adjustment is conducted through the deviation adjusting assembly and the supporting masonry clamping assembly, and center balance adjustment and bottom supporting are formed. And the overall stable supporting performance is improved.

The utility model provides a stir-frying device for tea processing, and relates to the technical field of tea processing, the stir-frying device comprises a rack, the rack is fixedly connected with a shell, the shell is internally and rotatably connected with a frying cylinder, the shell is fixedly communicated with a heating cavity, the shell is fixedly communicated with an exhaust pipe, the frying cylinder is provided with a sieving structure, and the sieving structure is arranged on the exhaust pipe. A sieving structure is arranged in the shell and mainly comprises a plurality of sieving holes, the sieving holes are all formed in the frying cylinder, a fixed cylinder is fixedly connected in the shell, the fixed cylinder is arranged on the outer side of the frying cylinder in a sleeving manner, a discharging pipe is fixedly inserted into the heating cavity, a material guide groove is formed in the inner wall of the fixed cylinder and communicates with the discharging pipe, and a material outlet is formed in the lower end of the fixed cylinder. According to the utility model, the problem that the complexity, time cost and labor cost of the processing flow are increased due to the additional screening process since the screening process is added to remove the chippings after the stir-frying is finished at present is solved.

The utility model relates to an online accompanying transverse laser cutting machine which comprises a rack, a workbench, a positioning roller set, a laser cutting head and a dynamic adjusting system. The workbench is connected with a laser cutting head through a linear module, the laser cutting head can move in the width direction of a steel plate, and two positioning roller sets are symmetrically arranged on the feeding side and the discharging side of the workbench below the laser cutting head. The dynamic adjusting system enables the workbench to be connected with the rack in a sliding mode, synchronously tracks the moving speed of a steel plate under the control of the servo driving unit and comprises the servo driving unit, a transmission shaft and a linear guiding unit, and the transmission shaft and a threaded transmission sleeve in the middle of the workbench form a thread pair. The steel plate cutting edge is prevented from inclining through the dynamic adjusting system, material waste and production cost are reduced, and production efficiency is improved.

This invention relates to the field of road-bridge transition section health monitoring and intelligent transportation technology, specifically to a method for inferring the location of slab breakage in road-bridge transition sections based on vehicle acceleration. The method involves: collecting vibration signals from vehicles passing through the road-bridge transition section using an onboard acceleration sensor; denoising, noise reduction, and normalization of the collected data; extracting the actual acceleration collected by the sensor using wavelet transform and fast Fourier transform; constructing a physical-mechanical model of the road-bridge transition section and a vehicle-road coupled mechanical model to determine the slab breakage status; calibrating the slab breakage status using a Bayesian probability model, constructing a likelihood function and prior distribution; inferring the posterior distribution based on the likelihood function and prior distribution; and calculating the posterior distribution using the MCMC method. This invention infers the location of slab breakage in road-bridge transition sections using vehicle vibration data and Bayesian methods, enabling precise quantification and uncertainty assessment of road defects.

The utility model discloses a spraying and flexible scraping integrated forming device which comprises a lifting type portal frame, a mechanical arm and a spraying and scraping integrated tail end located at the tail end of the mechanical arm. The spraying and scraping integrated tail end comprises a spatula control cable, a spatula fixing rod, a flexible spatula, a flange connecting column, a connecting sleeve, a telescopic sleeve, a telescopic material conveying pipe, a tail end material conveying pipe, a telescopic spray head, a motor box, a spring and a second motor, the upper end of the flange connecting column is connected with the tail end of the mechanical arm, and the lower portion of the flange connecting column is sleeved with the connecting sleeve; the upper end of the telescopic sleeve is inserted into the lower end of the connecting sleeve, the flexible spatula is located at the tail end of the spatula fixing rod, each end corner of the flexible spatula is connected with a spatula control cable, and the curvature of the flexible spatula is adjusted through the lengths of the spatula control cables. The device can continuously finish spraying and scraping operation, overcomes the defect that spraying and scraping processes are carried out respectively, and avoids repeated transfer and waiting time of a processed product, so that the production efficiency is remarkably improved.

The invention belongs to the technical field of medicinal chemistry, and particularly discloses ergosterol of a spherical crystal and a preparation method thereof. The preparation method comprises the following steps: heating and mixing ergosterol and ethyl acetate to obtain a mixed solution; and cooling the obtained mixed solution to a crystal growing temperature, growing the crystal, and filtering after the crystal growing is finished, so as to obtain the ergosterol of a spherical crystal. Compared with traditional flaky or needle-shaped crystals and spherical crystals prepared by other methods in the market, the ergosterol of the spherical crystal prepared by the invention has good fluidity, and a series of problems caused by material addition can be greatly improved, so that the industrial production cost is reduced, and the economic benefit is increased.

The invention provides an Android resource file encryption method and device based on a quantum encryption technology, which are applied to a packaging process of a target application program, and the method comprises the following steps: obtaining a signature file of the target application program; generating a first session identifier corresponding to the signature file according to a preset encryption algorithm; obtaining a first quantum key after encryption of the charging key from a quantum key management service platform according to the first session identifier; performing quantum encryption on a resource file of the target application program by using the first quantum key, and storing the encrypted resource file after quantum encryption in a folder of the target application program; and packaging and compressing the encrypted resource file to generate an APK quantum encryption compressed package of the target application program. According to the scheme provided by the invention, in the packaging process of the resource file, the APK compression package is encrypted by using the quantum key, and the quantum key generates a one-time pad key through a quantum key distribution mode based on a quantum mechanics principle, so that the security of the resource file is ensured.

The utility model relates to the technical field of wall-mounted voltage stabilizing equipment, in particular to a wall-mounted voltage stabilizer convenient to adjust. According to the technical scheme, the wall-mounted voltage stabilizer convenient to adjust comprises a mounting base, a telescopic assembly, a heat dissipation assembly, a supporting rod, a three-axis spherical adjusting base, a connecting support, a mounting block, an environment detection probe and a voltage stabilizer body, the telescopic assembly is arranged on one side of the mounting base, and the heat dissipation assembly is arranged in the telescopic assembly; a supporting rod is arranged at the top end of the telescopic assembly, a three-axis spherical adjusting base is arranged at the top end of the supporting rod, a connecting support is arranged on one side of the three-axis spherical adjusting base, a mounting block is arranged on one side of the connecting support, and an environment detection probe is arranged on one side of the mounting block; by arranging the multi-angle adjusting structure, the orientation and the installation angle of the voltage stabilizer can be adjusted in real time in a multi-angle mode, the installation support of the voltage stabilizer does not need to be adjusted and installed frequently, and installation convenience of the voltage stabilizer is effectively improved.

The utility model relates to an aluminum veneer porcelain baking device which comprises a porcelain baking spraying device body, a porcelain baking paint spraying mechanism is arranged on the porcelain baking spraying device body, an auxiliary mechanism is arranged on the porcelain baking paint spraying mechanism, four mounting plates are arranged above the porcelain baking spraying device body, the porcelain baking paint spraying mechanism comprises a fixing frame, and the fixing frame is provided with a fixing groove. The fixing frame is arranged above the baked porcelain spraying device body, a driving motor is fixedly installed on the right side of the inner wall of the fixing frame, a threaded rod is fixed to an output shaft of the driving motor, a movable block is in threaded connection with the outer surface of the threaded rod, and a fixing plate is fixed to the bottom face of the movable block. A sliding block is fixed to the top face of the movable block. The rotating rod is driven by the transmission belt to rotate, so that the baked porcelain spraying device body can be driven by the rotating rod to rotate, the spraying range is increased, and the situation that the working efficiency is reduced and the time cost is increased due to frequent movement of the aluminum veneer in the aluminum veneer spraying process is avoided.

The present invention relates to an intelligent testing device for a circuit board and a testing method thereof, comprising a pressure device and an electrical detection device, wherein the pressure device comprises: a frame structure, wherein a U-shaped piece is arranged on the frame structure; a bidirectional driving component, wherein the bidirectional driving component is connected with an abutment component to clamp the circuit board placed in the U-shaped piece; a reciprocating component, which is arranged on the frame structure and connected with a pressure roller; an adjusting mechanism, which is arranged on the frame structure, wherein the adjusting mechanism comprises two groups of telescopic deflection components and a connecting component, wherein a lifting plate is connected between the two groups of telescopic deflection components, and when the bidirectional driving component drives the abutment component to move, the telescopic deflection component moves to drive the lifting plate to move up and down; a pressing component, wherein the pressing component is connected with the reciprocating component, and when the pressing roller moves, the roller wheel arranged on the pressing component cooperates with the adjusting mechanism to drive the pressing roller to move toward the circuit board and apply pressure to the circuit board, thereby realizing that the pressure applied by the pressing roller to the circuit board can be changed with the thickness of the circuit board.

The invention provides a state detection method and system for rail transit equipment, and relates to the technical field of traffic equipment.The method comprises the following steps that real-time operation data, image data, operation and maintenance data and life expectancy data of the rail transit equipment within a preset time period are collected; determining residual life data of the rail transit equipment according to the real-time operation data, the image data, the operation maintenance data and the expected life data; comparing the residual life data with a plurality of preset thresholds, and judging the running state of the rail transit equipment; according to the invention, fault prediction can be carried out according to the related data of the rail transit equipment, equipment maintenance preparation can be made in advance in a more targeted manner, and compared with maintenance after equipment fault, the shutdown time can be shortened, the operation efficiency can be improved, and the waste of maintenance resources can be reduced.

The utility model discloses a kind of storage equipment for end cover production, including storage rack and press frame, the press frame is movably connected in the cavity of storage rack. By setting the cooperation use of positioner, positioner block, positioner hole, spring and positioner slot, it solves the existing: end cover production is the process of manufacturing end cover, end cover production storage device refers to the equipment for storing the end cover of production completion, including storage rack, goods cabinet and storage box etc., when storing end cover, end cover needs to be stacked on the shelf plate of storage rack, usually the storage of end cover is in disorder, when end cover is not stored neatly, it is almost impossible to accurately count the number of end cover, staff may need to spend a lot of time to find, count the end cover scattered everywhere, which increases labor cost and time cost, but the storage rack used in the existing end cover production does not have the problem of neatly storing end cover.