195 results about "Stable status" patented technology

The utility model is suitable for the field of glasses, and discloses a hinge structure and intelligent glasses. The hinge structure comprises a first connecting piece and a second connecting piece. The first connecting piece comprises a first mounting plate and a rotating shaft which are connected; the second connecting piece comprises a second mounting plate and a rotating piece which are connected, and the rotating piece is rotatably arranged on the rotating shaft in a sleeving mode. Wherein the rotating shaft is provided with a first arc-shaped surface, a first limiting surface, a second limiting surface and a second arc-shaped surface, the rotating piece comprises an arc-shaped part and a bent part which are connected, the arc-shaped part is in close fit connection with the first arc-shaped surface, and the bent part and the rotating shaft are assembled and connected between the first limiting surface and the second limiting surface. According to the hinge structure provided by the invention, when the second connecting piece rotates relative to the first connecting piece, the second connecting piece is in a stable state at different rotating positions, so that the glasses legs are in a stable state at required positions relative to the glasses frame, and the use experience of a user is improved.

The invention relates to a vehicle control method and device, a vehicle and a storage medium, and the method comprises the steps: determining a steering intention state of the vehicle based on an obtained running state parameter of the vehicle; under the condition that the steering intention state is in any one of a preparation state, an activation state and a stable state, determining a target prediction value and a user type parameter of the transverse acceleration; determining the predicted lateral displacement of the user according to the target predicted value of the lateral acceleration, the acceleration threshold, the quality parameter, the standard quality parameter and the statistical value of the response factor; and according to the predicted lateral displacement of the user, the corresponding target supporting pressure is determined, so that a seat air bag of the vehicle is controlled to be inflated to the target supporting pressure. According to the invention, the adaptability and comfort of a user can be improved, and more accurate active lateral support is realized.

The invention relates to the technical field of pavement maintenance, and particularly discloses a pavement crushing device for dismantling a well lid and a crushing method of the pavement crushing device. A support plate; and a sleeve. According to the device, the protective cover is located on the periphery of the well lid, the protective cover is pressed downwards and abuts against the road surface, then the rocker arm drives the machine frame to move downwards, a plurality of sleeve rods on the triangular plate are arranged in corresponding sleeves on the protective cover in a sleeved mode, and therefore the triangular plate is fixed, the tool bit is connected with the triangular plate, and the triangular plate and the protective cover are both in a fixed state; the mode does not need to consider the state of the well seat, and the cutter head is kept in a stable state during rotation, so that the cutter head is effectively prevented from deviating during rotation, on one hand, the condition that the service life of the cutter head is shortened due to other stress during milling is avoided, and on the other hand, the milling efficiency is improved.

The invention belongs to the technical field of flow shop scheduling, and particularly relates to a hybrid flow shop full-active batch scheduling method. On the basis of a construction process of full active scheduling, complete scheduling is generated, and a compact and feasible initial solution is obtained; a damage-repair process based on a track is introduced, and complete scheduling is enhanced by focusing key operation to gradually converge to a stable state. According to the method, for the first time, on the basis of a construction process of full-active scheduling, complete scheduling is generated, batch dispatching, batching and distribution rules are effectively integrated, a high-quality scheme is constructed by utilizing a weighted priority mechanism, a damage-repair process based on a track is introduced, and the complete scheduling is strengthened by focusing key operation and is gradually converged to a stable state. Cross-stage waiting can be reduced, the equipment utilization rate is improved, and the total completion time is shortened; a high-quality schedule is generated in a short calculation time, and the method is suitable for a real-time or quasi-real-time production environment.

The invention provides an elevator health state monitoring and fault prediction method and system, a medium and a product. According to the method, a system server firstly obtains running state information and sensing data of all parts of an elevator door, then the deviation degree of the running state information of all the parts of the elevator and a running standard value is calculated to obtain a first health value set, and quantitative evaluation of the health conditions of the parts is preliminarily completed. And then, the system server recognizes an abnormal event from the sensing data, the system server obtains the current running state information of each component when the elevator door reaches a stable state after the abnormal event, and the health value is updated by calculating the state change rate, so that the health assessment can dynamically reflect the influence of an emergency on the component. And the system server calculates the attenuation trend of the health value of each part based on the time sequence data of the updated health value, and predicts the time when the elevator door possibly breaks down in combination with a preset fault threshold value. According to the method, the timeliness of elevator door health monitoring and the accuracy of fault prediction are effectively improved.

The invention relates to the technical field of vehicles, and discloses a control method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining associated data affecting the driving safety of a vehicle when the vehicle is driven to a target location at a future moment; according to the associated data, determining predictive control parameters of the vehicle in the transverse direction, the longitudinal direction and the vertical direction; when the vehicle runs to the target location, controlling the vehicle to run according to the predictive control parameters, and determining initial kinetic parameters when the vehicle runs according to the predictive control parameters; the initial kinetic parameters are corrected according to the actual kinetic parameters of the vehicle, target control parameters are determined, and the target control parameters indicate control parameters of the vehicle in a stable state; and controlling the vehicle to work according to the target control parameters. Through the technical scheme of the invention, the problem that the driving stability of the vehicle in different scenes is insufficient is solved, and the stability and safety of the vehicle are improved.

The utility model discloses a stable hydraulic cylinder, and relates to the technical field of hydraulic cylinders. The bottom end of the hydraulic cylinder body is fixedly connected with the outer wall of the base; the driving motor is fixedly connected with the outer wall of the hydraulic cylinder body through a rack; according to the hydraulic cylinder, the buffer mechanism is arranged, air cannot be exhausted from the circulating pipe, it is ensured that gas in the buffer mechanism is in a stable state in the supporting state, the stability of the hydraulic cylinder in the supporting process is further enhanced, and the situation that supporting is unstable due to gas leakage and the like is avoided; the piston rod slides downwards in the air collection cylinder to extrude air, the pressure loss and descending speed of the output end of the hydraulic cylinder body can be reduced, the hydraulic cylinder and equipment connected with the hydraulic cylinder are effectively protected through the function, the equipment impact and damage caused by too fast pressure loss are avoided, and the safety and reliability of the whole system are improved.

Methods and systems for anomaly detection include determining whether a system is in a stable state or a dynamic state based on input data from one or more sensors in the system, using reconstruction errors from a respective stable model and dynamic model. It is determined that the input data represents anomalous operation of the system, responsive to a determination that the system is in a stable state, using the reconstruction errors. A corrective operation is performed on the system responsive to a determination that the input data represents anomalous operation of the system.

The invention relates to the field of motor control, and discloses a 100kW-level low-rotating-speed composite-structure energy-saving motor and a driving control method, and the method comprises the steps: firstly, detecting the rotor rotating speed, stator current, bearing temperature and vibration signals of the motor in real time through a sensor module; a data analysis module calculates change values of the rotating speed of the rotor in a plurality of continuous monitoring periods, accumulates the change values to obtain a comprehensive fluctuation ratio, and compares the comprehensive fluctuation ratio with a preset fluctuation ratio threshold interval; then, the current running state of the motor is judged according to a comparison result; the motor operation states comprise stable operation, overload operation and light load operation; finally, if the motor is in the stable operation state, the current driving parameters are maintained; if the motor is in the overload operation state or the light-load operation state, the current driving parameters are adjusted until the motor is in the stable operation state, and therefore the motor driving parameters are dynamically monitored and adjusted to maintain the motor in the stable state.

The invention relates to the technical field of geological exploration, and particularly discloses a mineral geological exploration device convenient to install. According to the mineral geological exploration device convenient to install, the purpose of being stably installed on different grounds is achieved, a rock core sampler is used for drilling and sampling rock, a rotating device is used for adjusting a moving device at different angles, so that multi-angle adjustment is conducted, and a fixing device is used for supporting the device; corresponding assemblies are inserted into a soil layer or a rock layer to be fixed, fixing at different fixing angles is achieved through self rotation of the fixing device, the supporting device drives the equipment, the contact area between the equipment and the ground is increased through the crawler-type design, and compared with a traditional roller type moving mode, the contact area between the equipment and the ground is increased; and through the elastic design, the equipment is adaptive to different grounds, so that the stable state is kept in the fixing process.

The invention provides a pre-pressing method for construction of a suspension structure, and particularly relates to a method for applying a subsequent total load in advance through a pre-pressing device such as a hydraulic jack, so that a floor structure vertically deforms and is locked in advance, and then pressure is balanced and released step by step along with increase of a construction load. Load application and pressure release balance in the whole process is ensured, and structural deformation is in a stable state. According to the method, a structure pre-arching mode is adopted in the earlier stage, after construction of a steel structure outer frame is completed, the follow-up design load amount is obtained through calculation, suspension structure outer frame pre-pressing is conducted, so that the vertical deformation amount is locked in advance, then pressure is released through step-by-step unloading along with increase of the construction load, and the outer frame structure stress is always in a balanced state; the problem that vertical deformation of a floor structure is continuously increased due to load increase in floor construction of a suspension structure is solved. The risks of structural cracking, roof water leakage, building decoration layer damage and the like possibly caused by development of vertical deformation of the floor are reduced to the maximum extent, and the construction quality of the suspension structure is greatly improved.

The invention discloses a large hydropower station fast gate opening jump fault judgment method and system, and the method comprises the steps: configuring gate control system hardware, carrying out the gate code value jump enabling judgment according to the valve action state of a dual valve execution mechanism, and when the jump of the gate opening in a single PLC scanning period exceeds a first threshold value, carrying out the gate code value jump enabling judgment; when the gate opening degree continuously jumps in the same direction and exceeds a first threshold value, triggering single-cycle alarm and total alarm, when the gate opening degree continuously jumps in the same direction and exceeds a second threshold value and the number of times reaches a preset value, triggering multi-cycle alarm and total alarm, executing alarm automatic reset after the fault is eliminated, and resetting the alarm through continuous stable state detection or manual operation. When the gate is in a normal state, the change of the opening degree of the gate is monitored stably in real time, the false alarm rate can be remarkably reduced, and interference to operation and maintenance personnel is reduced. And when the gate has an opening jump fault, the fault can be effectively prevented from being missed to be reported, so that maintenance personnel can quickly and accurately position the fault. And after the fault disappears, the fault can be reliably and automatically reset, and the influence on equipment is reduced.

The invention relates to the technical field of turbine manufacturing and maintenance, in particular to a turbine bearing and rotor journal clearance measurement method, which comprises the following steps of part in-place, gasket group arrangement, simulation compression and equivalent clearance measurement. Measuring an equivalent gap Se of at least one position at a gap between the bearing upper half tile and the rotor shaft neck in a state of maintaining the pre-tightening force; wherein the preset thickness T is set according to the target bearing top clearance C, and the target bearing top clearance C is equivalently realized and verified by controlling the thickness of the gasket group; according to the method, the radial clearance is indirectly and accurately determined by controlling the pressing position of the split of the bearing, the set value of the top clearance is verified, efficient and visual evaluation of the size of the backlash and the axial uniformity of the clearance is achieved through the geometrical relationship in the stable state, and more direct and accurate clearance verification is achieved.

The utility model relates to the technical field of bottle cap production, in particular to a detection device adaptive to test dies of bottle cap dies of different bottle types, and solves the problems that in the prior art, the stable state of the bottle cap is difficult to effectively maintain by a feeding mode, so that the bottle cap is easy to displace or incline in the detection process, and the detection efficiency is high. The unstable state directly affects the detection result of the bottle cap, and the displaced or inclined bottle cap may cause that the detection probe cannot be accurately aligned with the key part of the bottle cap. A detection device adaptive to test molds of different bottle type bottle cap molds comprises a frame body, a top frame is fixedly connected to the top of the frame body, image recognition equipment is installed on the inner side of the top frame, and conveying rollers are rotationally connected to the two sides of the inner side of the frame body. The bottle cap feeding and detecting device effectively solves the problem that in the prior art, the stability of bottle caps is insufficient in the feeding and detecting process, and the stability of the bottle caps of different specifications in the conveying process is ensured through air-driven limiting adjustment of the distance and the design of the limiting inner side rollers.

The invention provides a control method and device for a vehicle actuator, electronic equipment and a storage medium. The control method comprises the steps that the current yaw velocity, the current longitudinal velocity and the limit stability radius of a vehicle and an intervention function of the actuator are obtained; acquiring a deviation value between a current state of the vehicle and a target stable state by utilizing the current yaw velocity, and acquiring a current stability factor by utilizing the deviation value and the limit stability radius; obtaining a stability factor control condition and a speed control condition of the actuator of the vehicle based on a control mechanism of the actuator for the vehicle; acquiring a current intervention degree value of the actuator by utilizing the intervention function, the current stability factor and the current longitudinal speed; and for any actuator, if the current stability factor meets the stability factor control condition and / or the current longitudinal speed meets the speed control condition, the actuator is controlled, the current yaw velocity is tried to be adjusted to the target yaw velocity according to the current intervention degree value, and optimal control over the vehicle by all the actuators is achieved.

To provide a rotary jig that makes it possible to hold and rotate a fastening component such as an eyebolt, another mechanical element having an annular head, or a fastener, as a target object, with good workability and in a stable state.SOLUTION: A rotary jig 1 comprises: a shank 10 which is rotatable by an external force applied from one end side thereof; and a hook 20 which is provided on the other end side of the shank 10 and on which a target object is to be hooked. The rotary jig 1 rotates the target object in accordance with a rotary force applied to the shank 10. The hook 20 has groove(s) 22 and / or 23 that is / are formed along the surface shape of the target object on a surface facing the target object which rotates in accordance with rotation of the hook 20 when the hook rotates with the target object hooked thereon.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of milling, and particularly relates to a milling control method and system for a bearing ring, and the method comprises the steps: obtaining and analyzing a vibration signal and main shaft driving power of a machining system in real time, and calculating and obtaining a regeneration effect dominant index for quantifying chatter severity based on a ratio of a chatter amplitude value to a cutter tooth passing frequency amplitude value; multiplying the nonlinear function of the index by the time integral of the main shaft power to construct a dynamic cumulative disturbance factor capable of comprehensively reflecting the current stable state and the historical cumulative disturbance of the system, and dynamically adjusting the self-adaptive step length of the FXLMS control algorithm according to the disturbance factor; therefore, more efficient and robust active suppression of processing flutter is realized on the premise of ensuring the stability of the system.

According to the injection molding machine capable of conveniently and rapidly replacing the mold, an auxiliary supporting mechanism and a clamping mechanism are arranged on each of a fixed plate and a movable plate, the auxiliary supporting mechanisms can stably support the mold, and the mold does not need to be suspended for a long time by depending on a travelling crane; the auxiliary supporting mechanism can lift up and down to adjust the longitudinal position of the mold, the two clamping mechanisms arranged left and right in a spaced mode can slide left and right to adjust the transverse position to adapt to molds of different specifications, the mold is directly clamped and locked after position adjustment, and therefore mold position adjustment and locking installation can be rapidly completed; manpower input and time consumption for repeatedly adjusting the position of the mold are greatly reduced, and the mold changing efficiency is effectively improved; by means of supporting of the auxiliary supporting mechanism on the mold and clamping of the clamping mechanism on the mold, the mold can be kept in a stable state in the mold changing process, the instability situation caused when a traditional crane hovers is avoided, position deviation caused by mold shaking is avoided, and the possibility that the mold falls off due to poor stability is greatly reduced.

The application discloses a PID steering engine control method, device and equipment and a storage medium, and applies to the control field, and comprises the following steps: acquiring a steering engine state, acquiring the duration of an abnormal state if the steering engine state is the abnormal state, determining the adjustment level corresponding to Kp, Ki and Kd according to the abnormal state if the duration reaches a preset time, adjusting the steering engine according to the adjustment level until the steering engine reaches a stable state or PID parameters Kp=KPT, Kd=KDT and Ki=KIT, and KPT, KDT and KIT are parameters in the control parameter range of normal use of the steering engine. The method adjusts the PID progressive step through the adjustment level, changes the PID parameters of the matrix form into the ladder form, changes the steering engine state more smoothly, eliminates the abnormal state of the steering engine, and guarantees the performance of the steering engine.

The utility model belongs to the technical field of wire clamps, in particular to a stable and durable wire clamp for laying wires, which comprises a wire clamp and a lifting lug above the wire clamp. Limiting frames are arranged at the two ends of the wire clamp, and an inner ring frame and an outer ring frame which are layered inside and outside are arranged on one side of each limiting frame and used for protecting threaded bosses on the outer sides of the two ends of the wire clamp and preventing the threaded bosses from being invaded and disturbed by the external environment. A blocking pad is arranged on the inner side of the wire clamp and contracts inwards after being extruded by the inner ring frame so as to extrude and fix the electric wire, and meanwhile frictional resistance is increased to form reinforcement. According to the utility model, double-layer fixation of extrusion and blockage can be formed on the electric wire, the device is suitable for laying operation of electric wires of various specifications, the thread structure can be protected inside, the influence of direct exposure on the external environment is avoided, and finally, the limiting frame can be positioned and fixed at a preset angle to prevent the loosening condition. And the stable state during long-time use is ensured.

An exit judgment method for a lane keeping assist function based on the curvature of a curve, comprising: on the basis of the curvature of a curve, calculating a timeout exit time threshold value, a vehicle attitude stabilization time threshold value and a driver takeover torque threshold value, the curvature of the curve being obtained on the basis of a driving image containing a lane line acquired by a vehicle-mounted sensing device; and if any one of a timeout judgment condition, a stabilization judgement condition and a driver takeover judgment condition is satisfied at present, exiting the lane keeping assist function, wherein when the activation duration of the lane keeping assist function exceeds the timeout exit time threshold value, the timeout judgment condition is satisfied, when the vehicle is kept in a stable state for a duration exceeding the vehicle attitude stabilization time threshold value, the stabilization judgment condition is satisfied, and when a steering torque of a driver exceeds the driver takeover torque threshold value, the driver takeover judgment condition is satisfied.

The application relates to the technical field of packaging box production, in particular to a license plate packaging box and a preparation device thereof, aiming at the problems of instability, easy changeability and easy breakage of the existing license plate box structure, and providing a license plate packaging box and a preparation device thereof, which comprise a bottom box and an upper cover, two opposite sides of the bottom box are respectively provided with short folding edges and long folding edges when the bottom box is unfolded, a plurality of first notches and first lugs are arranged on the short folding edges, the short folding edges can be in a stable state after being folded through cooperation of the first notches and the first lugs, a plurality of second notches and second lugs are arranged on the long folding edges, the long folding edges can be in a stable state after being folded through cooperation of the second notches and the second lugs, and the stability of the whole box can be improved, and the box can be prevented from being deformed and broken during transportation.

A support according to an embodiment includes a main body, a pair of main frames connected to the main body, a pair of straps respectively connected to the pair of main frames, and a bistable spring disposed inside each of the pair of straps and maintained in one of two stable states by a restoring force. The two stable states can include a first stable state in which the bistable spring has a shape extending linearly along a longitudinal direction and a second stable state in which the bistable spring has a shape bent once. A shape of the strap is determined according to a shape of the bistable spring.

The application discloses an adjustable air force collecting and distributing system, an adjusting control method thereof and a seeding machine, and belongs to the technical field of seeding machines. The air force collecting and distributing system comprises a fan, a mixing device, a conveying pipe and a distributor which are sequentially connected. The conveying pipe comprises a horizontal section and a vertical section. The upper end of the vertical section is connected with the bottom of the distributor. The application further comprises a detection system, an adjusting system, a control system and a flexible connecting piece. The high-speed dynamic response of the adjusting system and the accurate posture adjustment of multiple degrees of freedom are used to execute the precision adjusting instruction calculated by the detection system in real time, so that the distributor can keep a stable state at any time, the seed conveying, accumulation and uneven distribution caused by the inclination of the distributor are avoided, and the seeding uniformity of the air force collecting and distributing system under complex terrains is ensured.

The present application relates to the technical field of hoisting and lifting, and discloses a self-balancing intelligent hoisting system for prefabricated components, which comprises the following steps: before starting the main hoisting operation, the system measures the attitude parameters of the prefabricated component in a stable state by performing low-ground single-point suspension on the prefabricated component at two different preset hoisting points, calculates the center-of-gravity coordinates of the component based on the known geometric relationship between the parameters and the hoisting points, and further generates an executable hoisting scheme; the system applies a pre-tensioning force before the main lifting and performs zero-position calibration, and only when the calibration confirms that the lifting appliance is in a horizontal state, the lifting is allowed to be performed, the present application converts the dynamic process in the traditional hoisting which relies on experience estimation and repeated trial and error in the air into a static measurement and cognition process which is completed on the ground and based on physical laws, and through the closed-loop operation procedure of the pre-center-of-gravity cognition and the post-execution verification, the imbalance risk caused by the unknown center of gravity or the error of the cable appliance assembly is eliminated.

The application provides a method and device for determining the advance of height adjustment of an air spring. The method comprises: in response to a height adjustment instruction issued for the air spring, obtaining an initial adjustment advance corresponding to the height adjustment instruction and a target spring height, adjusting the height of the air spring according to the initial adjustment advance and the target spring height, after the adjustment is completed, obtaining an actual spring height of the air spring and collecting vehicle driving parameters, determining a vehicle driving state according to the vehicle driving parameters, in the case that the vehicle driving state is in a stable state, determining a height adjustment deviation value according to the target spring height and the actual spring height, and determining a target adjustment advance according to the height adjustment deviation value and the initial adjustment advance. The target adjustment advance of the application is a definite value and matches the current air spring state of the vehicle, so that the accuracy of the spring height adjustment can be improved and the performance of the suspension system and the driving comfort can be ensured.

The present application provides a gear position holding assembly, a transmission and an automobile. The gear position holding assembly includes a shift fork shaft, and a plurality of gear position holding mechanisms are provided on the shift fork shaft; the plurality of gear position holding mechanisms are arranged at intervals along the axial direction of the shift fork shaft and correspond to different gears respectively; the gear position holding mechanism is a magnetic control member, so that the shift fork shaft can be maintained at different gear positions. By providing a magnetic control member on the shift fork shaft, when the shift fork shaft moves to different gears, the magnetic control member can make the shift fork shaft in a stable state; compared with the traditional structure, wear is eliminated and the service life is improved.

To provide an intervention device capable of estimating which factors governing the state of the system should be intervened in order to return the system to then original stable state just before the system transitions from the stable state to a critical state.SOLUTION: An intervention device 1 for suppressing fluctuations in networks where nodes with state quantities are connected includes: a state sample acquiring unit 11 that acquires multiple samples of state; an estimation unit 12; an intervention unit 13; and a control unit 14. The estimation unit 12 selects eigenvectors related to the eigenvalues of the covariance matrix of the acquired multiple samples as an estimate of the dominant right eigenvector. The control unit 14 is configured to control the intervention unit 13 so as to intervene to suppress the state quantity corresponding to the eigenvector component related to the selected eigenvalue on the network.SELECTED DRAWING: Figure 5

A supporter for a wearable exercise apparatus may include a main body; a pair of main frames connected to the main body; a pair of straps connected to the pair of main frames, respectively; and a bistable spring which is provided inside each of the pair of the straps and maintained in one of two stable states by a restoring force. The two stable states include a first stable state in which the bistable spring has a shape extending straight along the longitudinal direction and a second stable state in which the bistable spring has a shape that is bent once. The shape of the strap may be determined according to the shape of the bistable spring.

The utility model discloses a clamp assembly which is used for clamping a plurality of workpieces, the workpieces comprise a first workpiece located on the uppermost portion and a second workpiece located on the lowermost portion, and the clamp assembly comprises a center clamp which penetrates through the center portions of the workpieces and clamps the workpieces from the top of the first workpiece and the bottom of the second workpiece; and an outer ring clamp for clamping the plurality of workpieces from the peripheries of the first workpiece and the second workpiece. According to the clamp assembly, the multiple workpieces are clamped from the central parts and the peripheral parts of the multiple workpieces, the assembling clearance is reduced, and it is guaranteed that the assembling clearance of the contact positions of the multiple workpieces from the central area to the peripheral area is in a stable state.