16 results about "UNSTABLE ENVIRONMENT" patented technology

The invention discloses a method for an unmanned ship to cooperatively surround an unknown target in a GPS denial environment, and relates to the technical field of unmanned ship cooperative control. In order to solve the problems that effective surrounding is difficult to complete in a GPS denial or unstable signal environment, the unmanned surface vehicle does not respond to target maneuvering in time and the surrounding precision of a dynamic complex water area is difficult to guarantee, the scheme is provided as follows: establishing an unmanned surface vehicle motion mathematical model, and describing the two-dimensional plane motion and dynamics of the unmanned surface vehicle; calculating a target speed estimator according to the distance and azimuth measurement between the adjacent unmanned ships; designing a first-order fixed time differentiator, and approaching a target speed and a derivative thereof within a preset time; on the basis of azimuth rigidity, the azimuth between the adjacent unmanned surface vehicle and the target is regarded as a rigid constraint, a rotation item is introduced to realize collaborative surrounding, and uncertain interference and model errors are compensated online. The scheme can be applied to cooperative surrounding operation of multiple unmanned ships on unknown targets in a GPS denial or signal limited environment.

The utility model discloses a wind turbine generator internal bolt fracture monitoring device based on acoustic emission, which comprises a frame body, an acoustic emission instrument and a probe are arranged in the frame body, an electric wire is connected between the acoustic emission instrument and the probe, and a handle is fixed on one side of the frame body; the protection mechanism is located between the frame body and the probe and used for protecting the probe, and the protection mechanism comprises an extrusion assembly, a ventilation assembly and a driving assembly; through the arrangement of the protection mechanism, the probe can be covered and protected, the situation that the surface of the probe is scratched and damaged or internal elements are loosened due to the fact that the probe is likely to collide and rub with the bottom plate is avoided, it is ensured that the probe can be normally used, the service life of the probe is greatly prolonged, and the replacement frequency and the maintenance cost are reduced; and meanwhile, the problems that in an existing device, when the probe is stored in an unstable environment, the performance of the probe is unstable, and false alarm or missing alarm occurs are solved.

The utility model relates to a light-transmitting glass mosaic candlestick which comprises a candlestick body and a base, the candlestick body is placed on the top of the base, the top of the base is fixedly connected with a fixing seat, the fixing seat is in threaded connection with the interior of the candlestick body, an annular groove is formed in the top of the candlestick body, and the annular groove is in threaded connection with the fixing seat. An annular groove is formed in the candlestick body, a mosaic cover is movably clamped in the annular groove, a supporting plate is arranged above the candlestick body, a fixing groove is formed in the bottom of the supporting plate, and the fixing groove is annular. According to the candlestick, the candlestick body and the base are fixed in a threaded connection mode, compared with a traditional connection mode, the design provides higher stability, and the risk that the candlestick shakes and topples over in the using process is reduced. The candlestick is provided with the movable supporting plate, and a user is allowed to adjust the gravity center of the candlestick according to the environmental stability requirement. In an unstable environment, the stability of the candlestick can be effectively improved by lowering the gravity center, and toppling is prevented.

There were concerns about the excessive strain on the waists of workers who carried tools by attaching many tool holders to their waists, the risk of workers falling due to tools and building materials being placed on the floor, and the danger of tools and building materials falling when placed in unstable conditions. [Solution] To provide a holder that allows tool brackets removed from a worker's waist to be directly attached to the structure or installation of a building at the work site.

The invention discloses a laser aiming trajectory tracking training instrument in a digital unstable state, which belongs to the technical field of physical training equipment and comprises a training platform, a simulation gun, a timer, a wireless transmitter, a laser aiming module, a high-definition camera module, a data processing module and a wireless data transmission module. The training platform adopts an unstable base with a dynamic adjustment mechanism, an unstable state is provided in the form of a balance ball or a swing structure, and a laser is mounted at the top end of the simulation gun; according to the system equipment, an efficient and safe training environment can be provided for athletes, training data can be monitored in real time, and the training effect can be improved through a refined feedback mechanism. A trainee can complete high-precision shooting training in a dynamic and unstable training environment, so that the shooting skill and the capability of coping with a complex environment are effectively improved.

The utility model provides a case slide rail, which relates to the technical field of slide rails, and comprises an inner rail, a middle rail and an outer rail which are sequentially connected in a sliding manner, when a case is completely pulled out, the inner rail and the middle rail as well as the middle rail and the outer rail are respectively locked, when the case is closed, the inner rail and the outer rail are locked so as to stabilize the case, a closing retainer is arranged on the middle rail of the case slide rail, and the closing retainer is arranged on the middle rail. When the case is pulled out and closed, the inner rail and the middle rail are clamped through the closing retainer, so that the speed of pulling out and closing the case is reduced, when the case is used in unstable environments such as ships and vehicles, the situation that the case is pulled out or closed too fast due to bumping, and the case and electric appliances in the case are damaged is avoided, use by workers is facilitated, and the working efficiency is improved. The case slide rail is made of stainless steel, is high in strength and good in salt spray resistance, and is also suitable for ships, islands, beaches and humid areas.

The utility model discloses a humidifying tank, and belongs to the field of medical auxiliary instruments. The humidifying tank mainly solves the problems that a buoy of an existing humidifying tank is prone to being clamped in an unstable environment, sealing is poor, and leakage occurs. The humidifying tank comprises a tank body and a bottom plate, the tank body and the bottom plate are sealed and assembled through a sealing ring, the tank body is provided with an air inlet, an air outlet and a liquid inlet, a small buoy, a large buoy and a floating sealing assembly are arranged in the tank body, and the small buoy and the large buoy are hinged to a hinge seat close to one side of the liquid inlet. By means of the lever principle, the small buoy floats upwards to drive the floating sealing assembly to block the liquid inlet when normal, the large buoy plays a role when the small buoy breaks down, the liquid inlet amount is accurately controlled, and the stability and reliability of equipment are improved. The special structure of the floating seal assembly achieves double blocking, and the sealing effect is enhanced. The humidifying effect is optimized through the flow guide wall below the air inlet and outlet and the flow guide part on the large buoy. The hinge seat limiting part is convenient to install and prolongs the service life of components. The humidifying tank can stably operate in various environments, and reliable wet gas is provided for a patient.

The application discloses a dynamic high-precision docking control method and system for a fluid loading and unloading arm in a non-steady environment based on imitation learning, and the method comprises the following steps: initializing the end position of the fluid loading and unloading arm to a position at which complete image information can be collected; collecting a ship receiving device marker point image in real time, and calculating a visual feature error vector; inputting the visual feature error vector into a Gaussian mixture model regression model which is trained in advance by using an expert demonstration data set, and outputting a dynamic compensation speed vector; calculating a control instruction for minimizing docking deviation according to the visual feature error and the compensation speed; and driving a hydraulic execution system of the fluid loading and unloading arm to perform real-time adjustment according to the control instruction until the visual error converges, and high-precision docking of the end of the fluid loading and unloading arm and the ship receiving device is completed. The application is suitable for cm-level accurate docking of a fluid loading and unloading arm in a non-steady marine environment coupled by strong wind and sea waves, and significantly improves the safety and reliability of dangerous fluid conveying operations.

The invention discloses an electric field infrastructure concrete pouring device, and relates to the technical field of electric field infrastructure concrete pouring, and the electric field infrastructure concrete pouring device comprises a pouring unit which comprises a flow guide pipe, a discharging sleeve and a hoop; the hoop unit comprises a plurality of hoop assemblies, an extension plate, a fastening assembly, a rotary supporting assembly, a base and a supporting leg assembly. The overall structure of the device is allowed to be adjusted within a certain range so as to adapt to the swing amplitude of a crane for discharging a sleeve, and all-directional flexible clamping is achieved. After rotation adjustment is completed, the hoop can be locked at the optimal stress position, and external vibration can be effectively absorbed and buffered through a damping element in the hoop or a damping element in a connecting part. And it is ensured that even in an unstable environment, stable clamping force can be kept. In addition, the whole process from power input to clamping execution of the whole system can be triggered by simply operating opening or closing of the supporting legs, and repeated manual adjustment is not needed.

The invention relates to the field of natural gas gathering, transportation and treatment, in particular to a skid-mounted method for a booster station under a complex terrain. The invention discloses a skid-mounted three-dimensional station distribution method for a booster station in a complex terrain. The method comprises the following steps: S1, performing module packaging on a separation module, a liquid separation tank module, a produced liquid buffer tank module and a produced liquid output pump skid module of the booster station; s2, performing inspection and trial operation on each packaged module respectively; s3, all the inspected modules are transported to a booster station site, and the separation module, the liquid separation tank module, the produced liquid buffer tank module and the produced liquid output pump skid module are sequentially arranged side by side in the sequence of the separation module, the liquid separation tank module, the produced liquid buffer tank module and the produced liquid output pump skid module; and S4, an emptying pipeline of the separation module communicates with the liquid separation tank module, a liquid drainage pipeline of the separation module communicates with the produced liquid buffer tank module, a liquid drainage pipeline of the produced liquid buffer tank module communicates with the produced liquid output pump skid module, and installation of the booster station is completed. A traditional booster station is large in occupied area, high in land acquisition cost, unstable in environment and high in safety risk. There are many devices and management is complex. Meanwhile, the management difficulty and risk are increased due to the fact that the number of workers in the station yard is large. Therefore, the skid-mounted method for the booster station under the complex terrain is urgently needed.

The utility model relates to the technical field of injection molding of tubular thin-wall products, and discloses an anti-deformation injection mold for preparing tubular thin-wall products, which is used for injection molding of tubular thin-wall products and comprises a base and a movable mold top plate connected with an injection molding machine, a fixed mold bottom plate is arranged at the top end of the base, and a lower mold seat is arranged in the fixed mold bottom plate. A movable mold plate is arranged at the bottom end of the movable mold top plate, and a temperature adjusting mechanism is arranged in the fixed mold bottom plate. According to the anti-deformation injection mold for preparing the tubular thin-wall product, through cooperation of the cooling air pump and the heating air pump and flexible positioning of the air spraying pipe, the temperature of the lower mold base can be adjusted. The temperature control mechanism effectively avoids injection molding failures caused by too high or too low temperature, such as product deformation and incomplete injection molding. The deformation risk caused by unstable environment in the forming process is reduced by ensuring that the temperature of the lower mold base is within a proper range and the action of airflow, and the stability and success rate of the injection molding process are improved.

The invention provides a high-voltage switch connection open-circuit protection device which comprises a shell, pressing buckles are hinged to the positions, close to the back side, of the upper end and the lower end of the shell, each pressing buckle is composed of a pressing plate and a buckle head, the pressing plates and the buckle heads are connected in a right-angle mode, and the pressing plates are hinged to the upper end face and the lower end face of the shell. The torsion spring is arranged at the hinged position and acts on the pressing plate so that the tail end of the buckle head connected to the pressing plate can keep the trend of moving towards the back face of the shell, the inclined acting force on the rail back side structure is matched with the shell structure to form the three-direction centripetal clamping effect on the rail structure, the movement allowance after installation is avoided, and the service life of the buckle head is prolonged. And the working stability of the circuit breaker in an unstable environment is ensured, and the circuit breaker has a good development prospect.

The utility model discloses a portable adjustable multifunctional table which comprises a table board and a seat board, the table board is located above the seat board, and the distance between the table board and the seat board is adjustable. The connecting part is detachably arranged between the table plate and the seat plate, and the table plate and the seat plate are connected together in a Z shape; the adjusting parts are arranged on the two sides of the table board and the seat board, the adjusting part on each side comprises a threaded cylinder and two threaded rods with half threads, the ends, with the threads, of the threaded rods face the threaded cylinders and are in threaded connection with the threaded cylinders, and the threaded rods are connected with the table board or the seat board through bolts. The folding table has the advantages that when the folding table is used, a human body sits on the seat plate, the stability of the table used in an unstable environment can be stabilized, the folding table can be adjusted according to requirements, the folding table can be folded and stored when not used, and the folding table is convenient and fast to use and convenient to carry.

The utility model provides an anti-seismic door lock and a cabinet, and belongs to the technical field of cabinet body locksets, the anti-seismic door lock comprises a driving assembly, a spring bolt assembly and a fixing assembly, the spring bolt assembly comprises a plurality of spring bolts which are sequentially distributed at intervals in the inside-outside direction, and the plurality of spring bolts are coaxially connected to the driving assembly; the fixing assembly comprises a plurality of fixing parts which are sequentially distributed in the inside-outside direction, the lock tongues and the fixing parts are arranged in a one-to-one correspondence mode, the lock tongues have a locking state in which the lock tongues are locked with the corresponding fixing parts and an unlocking state in which the lock tongues are separated from the corresponding fixing parts, and the driving assembly is used for driving the lock tongues to rotate synchronously. Therefore, the spring bolt can be switched between the locking state and the unlocking state. The utility model provides an anti-seismic door lock and a cabinet, and aims to solve the problems that in the prior art, when a cabinet door and a cabinet body are locked by adopting a single-point lock, a lock plate is easy to move in unstable environments such as transportation and the like, so that the cabinet door is accidentally touched and unlocked, the cabinet door is damaged, and electrical parts in the cabinet are exposed to the outside.

The invention relates to a robot grabbing control method based on stability risk assessment. The robot grabbing control method is suitable for object grabbing in a disordered stacking scene. The method comprises the following steps: acquiring scene point cloud in real time through an RGB-D camera, and preprocessing and segmenting the scene point cloud to obtain a point cloud cluster of each object; for each object, a longitudinal and transverse support relation graph is constructed, the longitudinal risk and the transverse risk of the object are calculated respectively, and grabbing stability risk parameters are obtained through coupling; the object with the lowest risk is selected as a grabbing target, and grabbing actions are planned and executed; and scene point cloud is updated after capturing and re-evaluation is carried out. By quantizing the influence of grabbing on the stacking stability, the stacking collapse risk in the grabbing process is effectively reduced, and the method is suitable for unstable environments such as a dynamic conveyor belt and can be cooperatively used with other grabbing evaluation parameters, so that the safety and reliability of a grabbing system are improved.

The utility model belongs to the technical field of carbon emission metering and analyzing devices, and particularly relates to a carbon emission metering and analyzing device which comprises a mounting bottom plate and a fixing component arranged on the outer side of the end part of the mounting bottom plate, the fixing assembly comprises a mounting frame, a motor and a threaded rod, and the mounting frame is fixedly connected to the outer side of the end of the mounting bottom plate. The metering analysis device body is clamped through the clamping plate, the main function is to stably clamp and fix the metering analysis device body, it is guaranteed that the metering analysis device body is not affected by external vibration, wind power or other interference factors during measurement, and therefore the accuracy and stability of measured data are guaranteed. The design is particularly suitable for being used in a complex or unstable environment, water is atomized into tiny water drops through high-pressure equipment, the tiny water drops are sprayed into the surrounding environment, and the tiny water mist particles are rapidly evaporated in the air and absorb a large amount of heat, so that the temperature of the surrounding environment is effectively reduced.