42results about How to "No risk of failure" patented technology

The invention relates to an unmanned helicopter automatic landing method based on laser guidance, belonging to the field of unmanned plane flight control. The method is characterized in that a laser transmitter, an airborne laser acquisition device and a flight control system are provided, wherein the laser transmitter is used for landing instructions, the air-borne laser acquisition device is used for acquiring laser spots projected to the ground by the laser transmitter, the flight control system is used for controlling helicopter tracing laser spots according to output signals of the laser acquisition device, so that the unmanned helicopter can gradually approach to the laser spots on the ground according to the instructions and guidance of the laser transmitter and descend to lower height at the same time until automatic landing is completed. According to the method, instructive accuracy of laser can be employed to accurately and conveniently guide the unmanned helicopter to automatically land.

A load release pin for concrete forming apparatus is disclosed. The pin supports the concrete forming apparatus and any plastic concrete during forming of a concrete structure. After the concrete has set sufficiently, the pin is displaced to release the load on the forming apparatus. The pin has an asymmetric shape that prevents it from being used in an incorrect orientation. In addition, the pin provides sufficient strength to safely support the forming apparatus and any plastic concrete even if it is mistakenly inserted in the displaced position.

The invention relates to a method for determining an adhesion failure of an output contactor of a direct-current charging pile. Three states including a state before charging, a charging state, and astate after charging are provided. According to the determination method, different processing steps are provided for the three kinds of states. Before charging, the following steps are performed: a charging pile is started for charging, a direct-current output contactor is disconnected, and a battery loop voltage value of an electrical vehicle is determined; if the battery has no voltage, startupis carried out and a charging module is started, and the voltage of the charging module boosts to be a designated voltage; the battery voltage value is determined, if the battery voltage is equal toa module voltage, the output contactor is closed in an adhesion state; if the battery has no voltage, contact state normality information is outputted and a next-step detection is carried out; the output contactor is closed, the battery voltage value is determined again, if the battery has no voltage, the output contact is closed in an adhesion state; and if the battery voltage is equal to the module voltage, the output contactor state is normal and next-step insulation detection and charging are carried out. According to the invention, a set of complete detection methods is provided for threedifferent states including the state before charging, the charging state, and the state after charging, so that an adhesion failure state of the output contact is determined.

The invention provides a method and system for opening a door by scanning a code, a smart cabinet and a terminal. The method for opening the door by scanning the code is used for the smart cabinet andcomprises the steps of S102, detecting the type of the two-dimensional code or the barcode scanned by a scanner and a cabinet number corresponding to the code; S104, judging whether or not the two-dimensional code or the barcode belongs to item storage codes in type, and if yes, executing S106; S106, sending out a door opening signal to open the cabinet door corresponding to the cabinet number, and executing S108; S108, judging whether or not the cabinet door is opened, if yes, executing S110, and if not, executing S112; S110, uploading item storage information to a server so that the servercan push the item storage information to the user terminal; S112, uploading fault information to the server, redistributing the cabinet door, and executing S108. By means of the method for opening thedoor by scanning the code, the scanner is applied to multiple links, and the hardware utilization efficiency and the user experience are improved.

The invention discloses a washing machine. The washing machine comprises a machine body, an inner drum, a filtering assembly, a circulating pump assembly and a draining pump assembly. The inner drum is arranged in the machine body, the filtering assembly is arranged in the machine body, a filtering cavity is defined in the filtering assembly, the filtering assembly is provided with a water inlet, a water outlet and a draining port which are communicated with the filtering cavity, the water inlet is communicated with the inner drum, a detachable filtering element is arranged in the filtering cavity and located between the water inlet and the water outlet in the water flowing direction, the circulating pump assembly is connected with the filtering assembly and communicated with the water outlet, and the draining pump assembly is connected with the filtering assembly and communicated with the draining port. According to the washing machine, substances like soft flocks in circulating water can be effectively and thoroughly removed; the circulating water enters the circulating pump assembly through the water outlet, the performance of a circulating pump will not be influenced, and the risk of failure of the circulating pump can be avoided; operation is convenient, the use range of the circulating water is expanded, water resources are saved, and the user experience is good.

The invention provides a method for manufacturing sheet-shaped packaging materials. The method comprises the following steps: expanding a paper core layer and punching an opening hole, wherein a fiber direction of the paper core layer extends along the length direction; printing a printing layer on the outer surface of the paper core layer; extending a pattern and character direction of the printing layer along the width direction of the paper core layer; extruding and laminating a thermoplastic material on the printing layer to form an outermost layer; extruding and laminating a thermoplastic material on the inner side face of the core layer to form an intermediate layer; compounding a barrier layer on the inner side face of the core layer by the intermediate layer; extruding and laminating a thermoplastic material on an aluminum foil layer to form a binding agent layer; extruding and laminating a thermoplastic material on the binding agent layer to form an innermost layer; pressing a vertical fold line, a transverse fold line and an inclined fold line on one side of the outermost layer; and slitting a continuous packaging material of the plurality of sheet-shaped packaging materials to form the single-sheet packaging materials. The packaging materials can have a relatively good fold line effect by using relatively small pressure when the fold lines are pressed.

The invention relates to a method for the operation of a longitudinally scavenged two-stroke large diesel engine (1), having a piston (20) being arranged to be movable to and fro in a cylinder (2) along a running surface between a bottom dead centre (UT) and a top dead centre (OT), wherein a fuel is fed into the cylinder (2) of the large diesel engine (1) by an injection nozzle and scavenging slots (3) are provided at an inlet region of the cylinder (2) for the supply of a predetermined amount of scavenging air (4). An outlet valve (5) is provided at a cylinder cover of the cylinder (2) for the expulsion of a combustion gas (6), wherein, in said method, a fresh air (7) available at an environmental pressure is sucked in by a first exhaust gas turbocharger (8, 81) and / or by a second exhaust gas turbocharger (8, 82) and said fresh air (7) is supplied to the cylinder (2) as the scavenging air (4) at a predetermined charge air pressure via the scavenging slots (3), so that an ignition gas mixture is generated in the cylinder (2) from the scavenging air (4) and the fuel.

The invention discloses a retractable arresting hook device of an unmanned aerial vehicle. The retractable arresting hook device is composed of a base, an upper lock and an arresting hook. The base isused for installing the arresting hook and the upper lock, the base serves as an installation connector of a fuselage structure, and the installation connector can be flexibly designed according to the fuselage structure and is particularly suitable for being adaptively installed on an unmanned aerial vehicle without an arresting device. The arresting hook is installed on a rotating shaft of thebase through the torsional spring, the torsional spring is limited through the limiting block, and the installation position of the arresting hook is determined. The upper lock is installed on a rearend plate of the base through a lock body, and the hook arm in the folded state is locked in the notch through the lock hook. The reset spring enables the lock hook to keep a vertical locking state when the actuating mechanism does not act, the actuating mechanism drives the firing pin to move after being powered on, and the lock hook is pushed to rotate to achieve unlocking. In the releasing process, the actuating mechanism directly drives the lock hook to unlock, and the mechanism is simple; in the working process, the torsional spring provides a buffering function and can reset automatically, and no buffer fault risk exists.

The invention provides a method for redirecting an access request, a medium and a device. The method comprises the steps of copying a DNS request sent when a client accesses a target server; analyzingthe DNS request by using a DNS counterfeit service, and sending a counterfeit IP address to the client; receiving an access request that the client accesses the counterfeit IP address; and accordingto the counterfeit request, sending a redirection website to the corresponding client, so that the client jumps to a redirection page according to the redirection website. The redirection of an HTTP or HTTPS request can be implemented; and a total bypass mode is adopted by the method, so the deployment is simple, a network does not need to be transformed, and no network bottleneck and network failure risk exist.

The present invention provides a lever (300). The lever (300) opens a door (720) by pushing a latch (200), which is inserted into a support latch holder (10) and latched, in an opening direction of the door (720) to release the latching. And the lever (300) is automatically controlled by a control part (90). According to an automatic door opening mechanism, when power is supplied to the cooking device or a power supply of the cooking device is turned on by a user, control for aligning the lever (300), the pushing member (500) and the pushing member driving part (600) to a fixed position is executed. Furthermore, after a user inputs a door opening command, in order to perform a door opening operation, it is possible to check whether or not each component related to an automatic door openingoperation is abnormal by means of a change in a recovery/stop switch and a change in an opening detection switch that occur when the motor is rotated one turn. When the latch is unlocked, the door, the initial opening angle of which has been opened, is automatically opened by self-weight pull-down, and from a predetermined opening angle, the door can be slowly moved downward and opened by means of the intervention of the damper (the controlled speed).

The invention discloses a positioning structure of an electro-hydraulic servo valve force feedback assembly. The positioning structure comprises a guiding sleeve (1), a lock screw I (4) and a lock screw II (5), wherein the guiding sleeve (1) is arranged in a valve element (6), and a small feedback ball (3) of the feedback assembly (2) is arranged in the guiding sleeve (1) in a clearance fit mode; and the lock screw I (4) and the lock screw II (5) are arranged in the valve element (6) and clamp the guiding sleeve (6) from the two sides in a surface contact mode. According to the positioning structure of the electro-hydraulic servo valve force feedback assembly, the small feedback ball is positioned in an inner hole of the guiding sleeve, the guiding sleeve is positioned in the middle of the valve element through the two lock screws, a valve element annular groove structure which is difficult to machine is omitted, and the positioning precision of the small feedback ball can be easily guaranteed. The positioning portion of the guiding sleeve is a plane, positioning is reliable, and the assembling difficulty is lowered. Meanwhile, the fit clearance between the guiding sleeve and the small ball can easily guarantee the precision and lower system damping, and thus the dynamic and static properties of an electro-hydraulic servo valve can be improved.

A computer-implemented method for probabilistic quantification of probability of failure of a component, especially a gas turbine component, which during operation is subjected to cyclic stress, wherein the component is divided virtually in one or more domains. The method includes: providing or determining for at least one domain, a domain probability density function for crack initiation and providing or determining for the considered domains a domain probability density function for subsequent crack propagation induced failure. Determining for each considered domain a combined domain cumulative distribution function for failure or its probability density function is done by convoluting either both the considered domain probability density functions for crack initiation induced failure and the respective domain probability density function for subsequent crack propagation induced failure, or their integral function. Alternatively, numerical methods for said component failure probabilities include domain-based Monte-Carlo schemes.

The invention relates to overhaul equipment for a subway train. The equipment is used for replacing a bogie, which goes wrong, on the subway train. The equipment is characterized in that supporting devices 1 are arranged on a ground foundation equal to a subway train ground rail 24 in height and are located on the lower parts of the two sides of a subway train body 22, an electric flat carriage 2is arranged in a pit, a screw elevator assemblies 3 are arranged below the electric flat carriage 2, the electric flat carriage 2 can be enabled to ascend or descend according to the needs, when the electric flat carriage 2 is in an ascending state, the electric flat carriage 2 is used as a rail for the subway train, and when the electric flat carriage 2 is in a descending state, the electric flatcarriage 2 can transversely run along a running rail 21 and move out of the subway train so as to replace the bogie.

The invention discloses a casing of an injection-molded magnetoelectric water meter, which comprises a cylindrical body, flanges formed at both ends of the body, vertically arranged in an upper lumen in the middle of the body, and formed on the body There are elongated holes extending axially to communicate with the upper lumen, and the end surface of the upper lumen is injection-molded with a metal connecting sleeve with internal threads, and the outside and/or inside of the main body are formed with staggered or parallel holes. The reinforcing rib is provided, and hollow grooves are formed on the outer surface of the flange. The shell of the water meter of the present invention, compared with cast iron material, reduces the weight by 50% or more, and the cost is greatly reduced, even reduced to a quarter of the original cost. When the effective element analysis is carried out, the analysis shows that when the water meter When the cavity is subjected to a pressure of 2MPa, the maximum stress of the component is 97MPa, which is less than the yield stress of 135Mpa, and there is no risk of failure within the allowable range of the material.

A foundation anchor for forcefittingly anchoring an industrial-scale machine in a concrete foundation, comprising an anchor casing that has at least one lateral wall, and a plurality of anchor rods that are attached to the anchor casing, said anchor casing comprising a securing section for securing the industrial-scale machine by means of securing bolts, and the anchor rods being connected to the at least one lateral wall such that forces are introduced from the at least one wall into the plurality of anchor rods in a substantially linear manner along the longitudinal extension axis of said anchor rods is provided.