1371 results about "Constant speed" patented technology

The invention relates to the technical field of pipe welding, and discloses special welding equipment for an inner pipe connection type heat insulation oil casing, which comprises a welding table, a pipeline clamping mechanism is arranged at the top of the welding table, and the pipeline clamping mechanism comprises two rotating rings. During oil pipe machining, two oil pipes penetrate through the fixing rings to be connected, the electric telescopic rods drive the V-shaped clamping plates to clamp the oil pipes, and the driving motors enable the supporting rollers to support the oil pipes through the gears and the lead screws. The adjusting motor is matched with a related structure, so that the grinding wheel and the arc-shaped grinding piece are attached to oil pipes with different diameters. The grinding motor and the rotating motor work cooperatively to comprehensively grind the oil pipe, during welding, the oil pipe rotates at a constant speed to achieve uniform welding, and after welding, the grinding wheel and the arc-shaped grinding piece clean weld joints. In addition, in the polishing process of the equipment, a cleaning brush is driven to clean a polishing part through transmission of a gear and a chain, the polishing and welding quality is guaranteed, and the machining efficiency is improved.

The invention discloses a straight gear shape-free measurement method based on single-group line structured light. The method comprises the following steps: constructing an optical platform coordinate system, carrying out line structured light coordinate system calibration through a spherical calibration body, and calibrating the rotation center of a precision turntable; installing a measured straight gear, establishing a straight gear coordinate system, and adjusting the position of the linear structure optical measuring head, so that the measuring field of view of the linear structure optical measuring head covers a root circle to an addendum circle of the straight gear; the straight gear is installed on a precision rotary table, the straight gear is driven to rotate at a constant speed, a linear structure optical probe scans and collects straight gear contour point cloud data and circular grating angle information, and tooth surface three-dimensional point cloud data is obtained; based on the three-dimensional point cloud data of the tooth surface, extracting an addendum circle, a dedendum circle and an involute tooth profile, and calculating spur gear parameters; performing reverse three-dimensional shape modification tooth surface identification on the shape modification straight gear to generate a three-dimensional deviation diagram; and outputting a measurement result and printing a report. The problems of shape-free rapid measurement, modification tooth surface identification and tooth surface three-dimensional deviation characterization of the straight gear with unknown basic parameters are solved.

A friction stir spot welder includes: a pin; a shoulder; a rotary driver; a tool driver; and circuitry that performs an operation of driving the rotary driver and the tool driver such that the pin and the shoulder press a workpiece by a first pressing force while rotating at a first rotational frequency, and after the operation, performs an operation of driving the rotary driver and the tool driver such that a tip of the shoulder in a rotating state is pressed in to a first position. The first position is a position corresponding to 46% or more of a thickness of the workpiece from a front surface of the workpiece. A press-in speed of the shoulder until the shoulder reaches the first position is a constant speed.

The invention relates to the technical field of new energy vehicles, and particularly discloses a control method, system and device for steep slope slow descent of an electric vehicle and a storage medium, and the method comprises the steps that a vehicle control unit calculates the required torque value of the vehicle at the actual vehicle speed based on the current gear, the actual vehicle speed, the slope, the vehicle mass and the state of a power battery; sending a negative torque request to the motor based on the demand torque value; the state of the vehicle is monitored, when it is monitored that the current state of the vehicle meets the preset abrupt slope slow descent function condition, according to the met abrupt slope slow descent function condition, the motor torque and air brake synergistic effect are dynamically adjusted based on the negative torque request, and the cruise switch of the abrupt slope slow descent function is controlled; therefore, the vehicle can run at a constant speed under the downhill road condition. According to the scheme, the abrupt slope slow descent function of the vehicle is controlled, potential safety hazards when the vehicle is driven on a high-speed downhill road section are avoided, and the safety of the whole vehicle is effectively improved.

The invention belongs to the technical field of glide control, and relates to a direct lift active disturbance rejection control method suitable for flying wing layout. According to the method, a trailing edge flap is introduced to serve as a main lift control surface, meanwhile, a constant attack angle is kept through a lifting aileron so as to balance part of pitching moment generated by the trailing edge flap, and therefore the attitude of the aircraft is stabilized, and the constant speed is maintained. In the actual flight process, external disturbance is inevitable, so that an original glide control strategy is improved and optimized in combination with an active disturbance rejection control method. Compared with a traditional glide control method, the flying wing layout direct lift active-disturbance-rejection control method provided by the invention has remarkable anti-interference capability and excellent glide control performance, and shows a wide application prospect.

[Problem] To provide a video output system, a video output program, and a video output method which are capable of supporting determination of a referee in a match competition and improving the reliability of the determination result. [Solution] Video capturing devices 10 captures a competing scene of both players who compete in a stadium, and the captured videos are outputted to monitors 80 disposed at referees. The output videos are output such that a real-time video is output to a first referee at a constant speed, and a specific video edited by using a part of the real-time video is output to a second referee at a slower speed than the constant speed. On the basis of the specific video, the second referee can verify the determination made by the first referee, thereby improving the reliability of the determination result.

The present invention relates to the technical field of semiconductor processing and cleaning, and particularly to a Bernoulli chuck and a use method. The Bernoulli chuck comprises: a supporting seat which is rotatably arranged, wherein a plurality of supporting columns are rotatably arranged at the top of the supporting seat, holding columns are eccentrically arranged at the tops of the supporting columns, a shifting plate is arranged on the side wall of each supporting column, and a through shifting notch is formed in the shifting plate; a rotating seat which is coaxially arranged at the top of the supporting seat, wherein a shifting column is arranged on the rotating seat, the shifting column is always fitted into the shifting notch, and a plurality of elastic structures are arranged between the bottom of the rotating seat and the top of the supporting seat, so that when the supporting seat rotates at a variable speed, the rotating seat can rotate relative to the supporting seat, and when the supporting seat rotates at a constant speed from a variable speed, the rotating seat can return to the initial position; and a suction assembly coaxially arranged on the supporting seat.

The invention relates to the technical field of laser cutting, and particularly discloses a laser cutting device based on H-shaped steel structure production. A laser cutting unit; a feeding unit; a correction unit; and a guide unit; the guiding unit conducts self-adaptive movement along the bending path of the H-shaped steel structure and guides the deviation rectifying unit to drive the laser cutting unit to conduct transverse compensation in real time, it is guaranteed that the height of the laser cutting path is consistent with the height of the extending path of the H-shaped steel structure all the time, and the laser cutting unit can achieve transverse deviation rectifying while longitudinal feeding is conducted; therefore, curvature changes in any direction can be flexibly responded, the system is particularly suitable for an H-shaped steel structure with irregular bending characteristics, in the process that the feeding unit drives the laser cutting unit to longitudinally feed at a constant speed, the system automatically completes path tracking and transverse compensation, and continuous high-precision cutting operation is achieved.

The invention provides an oil well oil pumping speed curve optimization method, system and equipment and a storage medium, and belongs to the technical field of petroleum industry, a plunger motion curve is expressed as a trapezoidal motion curve by establishing a relational expression of pump efficiency and plunger motion speed, a plunger motion equation is expressed in a Fourier series expansion form, and the pump efficiency and the plunger motion speed are optimized. And determining constraint conditions according to oil well swabbing parameters to obtain an optimized plunger motion equation. According to the optimized oil pumping speed curve, the plunger can move at a constant speed for a long time in the up-down stroke, the good inlet and outlet instantaneous displacement can be maintained in the swabbing process, the oil well pump efficiency is improved, meanwhile, the unstable factor of sudden acceleration change of a trapezoidal motion curve is overcome, impact is effectively reduced, and motor operation is more stable.

An isokinetic control module and method for incorporation on both new and existing exercise equipment. The control module replaces standard friction and hydraulic resistance components offering constant speed of the moveable elements of the machine rather than a selected resistance or weight. The constant user-generated resistance prevents injury and enhances strength training of the targeted muscle groups by maintaining constant strain on those muscles throughout the exercise. This method and device incorporates both a PCFC valve and a check valve device, removing all resistance the moment the user stops applying force to the machine. This enhances safety and facilitates the rapid return of the lifting element to its home position between repetitions. An optional graphical display is also disclosed.

The utility model discloses a rope winding machine, and aims to provide a rope processing mechanism of the rope winding machine, which can keep a rope tight in a rope pulling process, has a good winding effect and can prevent the rope from being knotted and broken at the same time, and is characterized in that the rope penetrates through a rope routing device and a rope pulling device and is fixedly wound in a rope winding device; meanwhile, the thread rope can be kept tight through the thread pulling device, so that the thread rope is kept to move at a constant speed in the machining process, the effect of wound finished products is improved, a knotting detection function and a thread breakage detection function are arranged in the thread routing device, the situation that the thread rope is knotted and broken in the thread routing process, and consequently the yield of the finished products is affected is prevented, and the production efficiency is improved. Furthermore, a meter counting wheel is arranged in the wiring device, so that the length of the processed thread rope can be clearly and intuitively detected, the man-machine interaction effect is good, and the automatic thread rope winding machine is suitable for the technical field of automatic thread rope winding machines.

The invention discloses a copper foil cutting and punching cooperative control method and equipment. The equipment comprises a continuous discharging device, a copper foil punching device, a cutting and pulling device and a cooperative control system. The continuous discharging device feeds materials at a constant speed, and a material storage assembly is arranged between discharging and punching to form a buffering section. The copper foil punching device is used for carrying out intermittent punching on the copper foil; the cutting and pulling device comprises a feeding assembly, a cutting assembly, a pneumatic pressing assembly and a pulling assembly and is used for conveying, clamping and cutting the copper foil, the pneumatic pressing assembly can push the remaining copper foil to a clamping position after cutting, and the copper foil is prevented from falling off; the cooperative control system is combined with a sensor detection signal to dynamically adjust the action rhythm of discharging, punching and cutting, and coordination and synchronization of multiple procedures are achieved.

The invention relates to an auxiliary braking constant-speed downhill control method and device, electronic equipment and a storage medium, and belongs to the technical field of vehicle braking. The method comprises the steps that when a vehicle starts an auxiliary braking function, running parameters of the vehicle are obtained, and the total braking force of the vehicle is determined based on the running parameters; the operation parameters comprise load, vehicle speed and gradient; determining a braking mode of the vehicle based on the engine braking force and the total braking force of the vehicle; the braking mode is engine braking, or the braking mode is engine braking and service braking; and controlling the vehicle to go downhill at constant speed based on the braking mode. According to the auxiliary braking constant-speed downhill control method, when the auxiliary braking function of the vehicle is started, the load, the vehicle speed and the gradient of the vehicle are obtained, the total braking force is calculated, traveling braking is supplemented when engine braking is insufficient, and it is guaranteed that the vehicle keeps the constant speed to go downhill by combining engine braking and traveling braking; the braking device can flexibly adapt to different road conditions, improves the braking effect and the driving safety, and is low in cost.

The invention discloses a cylindrical object spiral printing positioning method, device and equipment and a storage medium, and relates to the technical field of ink-jet printing. According to the method, when a cylindrical object is arranged on a printing station, a preset acceleration angle is formed between the X-axis white edge position of the cylindrical object and the projection position of a spray head on the cylindrical object, and the Y-axis movement initial position is determined according to the X-axis acceleration time and the Y-axis acceleration distance; setting the starting position of the stepping motion of the cylindrical object at the starting position of the Y-axis motion, controlling the cylindrical object to rotate at an accelerated speed in the rotation direction and move at an accelerated speed in the stepping direction at the same time, and when the X-axis white edge position reaches the projection position, starting to rotate at a constant speed and stepping at a constant speed, controlling the spray head to perform ink-jet printing, synchronous and accurate positioning of the X-axis white edge position and the Y-axis white edge position is achieved, the accuracy of the image printing position in spiral printing of the cylindrical object is improved, and therefore the image printing quality is improved.

The invention relates to the technical field of welding devices, in particular to a welding device for metal steel structure machining, which comprises a machine base, a distance control motor is fixedly mounted on the surface of the machine base, a distance control threaded rod, a clamping seat, a conveying seat, a lifting threaded rod and a conveying roller are arranged, and the distance control threaded rod is matched with the clamping seat by utilizing the synergistic effect of the structures; the distance between the clamping blocks is adjusted through driving of the motor to adapt to workpieces of different lengths and is stably fixed through the clamping mechanism, the lifting threaded rod on the conveying base can drive the conveying roller and the pressing roller to move up and down, and the distance is flexibly adjusted to meet the conveying requirements of the workpieces of different thicknesses. The conveying roller is driven by the motor to be matched with the material pressing roller to form stable conveying, it is ensured that workpieces move linearly at a constant speed, positioning clamping and conveying distance adjustment of the workpieces are changed into stable conveying, the adaptability of the device to diversified workpieces is improved, the accuracy of the welding position is guaranteed, and the welding efficiency and quality are improved.

The invention discloses an overflow valve with an overpressure protection function, and belongs to the technical field of overflow valves, the overflow valve comprises a valve body, an oil inlet and an oil outlet are formed in the valve body, a communication cavity is formed in the valve body, a valve core is sleeved in the communication cavity, a damping hole is formed in the valve core, and a pressure plug is arranged in the valve body. When the damping hole is blocked, the driving block is driven by the up-down pressure difference of the valve element to extend out at a constant speed, the rotating rod and the threaded strip are driven to do multidirectional compound motion such as forward rotation, ascending, descending and reverse rotation in the damping hole, the shearing effect of full-circumferential covering is generated in the damping hole, sediments in the damping hole are cut and refined, and the damping effect is improved. Turbulent flow accelerated conveying is matched, secondary sedimentation is avoided, the efficient dredging effect on the damping hole is achieved, the vertical pressure difference of the valve element is eliminated in time, oil way pressure is responded and unloaded in time through the pilot valve, and damage to a mechanical structure caused by too large pressure is avoided.

The invention relates to the technical field of motor control, and discloses a chip mounter Z-axis linear motor module end-process force control method, a driver, a medium and a method, and the method comprises the following steps: S1, after a preset end-process position is reached, motor control is switched from position loop control to speed loop control, so that a motor keeps uniform motion; s2, monitoring whether a real-time current value fed back by the motor reaches a threshold current Iset1 or not and maintaining the real-time current value for a preset time length; s3, if the real-time current value reaches Iset1 and is maintained for a preset time length, continuously monitoring whether the real-time current value reaches a threshold current Iset2 and is maintained for a preset time length; and S4, if the real-time current value reaches Iset2 and is maintained for a preset time length, judging that collision occurs. According to the scheme, the speed ring is adopted to control the motor to move at a constant speed to carry out precise force control, meanwhile, the dynamic current threshold value is set to carry out two times of collision detection, collision detection is achieved while force control is carried out, a sensor does not need to be additionally used, and the requirements for mounting precision and compact structure are met.

The invention relates to the technical field of image processing, in particular to a glass bead defect detection method and system based on visual detection. According to the method, glass beads are separated one by one to a detection track and controlled to roll at a constant speed, image sequences containing multiple rotation angles are continuously collected in the rolling process, then whether movement stability, dispersion and brightness meet corresponding standards or not is determined, and when any detection result does not meet the standards, a sorting mechanism immediately removes defective products at the discharging end. According to the method, the glass beads with defects can be accurately and quickly identified and removed.

The invention belongs to the technical field of vibration conditions, and particularly relates to a crawler land constant-speed driving vibration condition correction method, crawler land constant-speed driving vibration data is often regarded as a whole to be processed as a random vibration condition to guide design and examination of parts on a vehicle, and an induction result is usually in a narrow-band + wide-band random form. However, when the crawler runs at a constant speed on the land, the frequency domain characteristic of the vibration data is closer to the form of'sine + broadband random ', and the method is suitable for correction of such vibration conditions. The accuracy of the vibration condition is improved, vibration environment distortion caused by discomfort of the induction method is reduced, and over-test or under-test of the induction vibration test is avoided. According to the invention, the narrowband component in the vibration signal is regarded as the projection of the sinusoidal signal in the power spectral density, the center frequency and the relative amplitude of the narrowband signal are calculated and converted into the frequency and the amplitude of the sinusoidal signal, and the narrowband component is replaced by the sinusoidal component, so that more accurate vibration test conditions are obtained.

The invention belongs to the technical field of lifting operation platforms, and particularly relates to a pushing chain type lifting operation platform which comprises a pushing chain lifting mast, the pushing chain lifting mast comprises a telescopic mast and a pushing chain driving system, and an operation platform is installed at the top end of the telescopic mast. According to the pushing chain type lifting operation platform, a variable frequency motor drives a pushing chain to conduct high-speed and constant lifting motion, a mast is vertically pushed and driven to ascend and descend, so that the operation platform on the top of the mast is driven to ascend and descend, the operation platform can stop at any height without sliding down, pure mechanical driving is adopted, and the risk of hydraulic oil leakage is avoided; and meanwhile, the problems that the transmission efficiency is low, the lifting speed is low, the speed is not constant, the descending speed is difficult to control, the stopping precision is low, and oil leakage possibly pollutes the environment are solved.

The utility model belongs to the technical field of gear ring machining, and particularly relates to gear ring polishing and deburring equipment which comprises a rack serving as a connecting base frame, a supporting component connected to the rack and a motor installed at the bottom of the rack, the output end of the motor is connected with the input end of a transmission, and the transmission is connected to the outer side of the rack. The output end of the transmission is connected with the rotating seat, the rotating seat is rotationally connected to the top of the rack, the clamping seat is arranged at the top of the rotating seat, the angle grinding component is connected to the rack and grinds a gear ring arranged on the clamping seat, the motor drives the rotating seat to rotate from the top of the rack, the gear ring arranged on the clamping seat rotates at a constant speed, and the grinding efficiency is improved while subsequent uniform grinding is facilitated. The first air cylinder drives the angle grinder connected to the outer side of the first movable plate to horizontally move along the outer side of the support, then the height of the angle grinder is changed, the position of an angle grinding piece is conveniently adjusted, and follow-up angle grinding operation is facilitated.

The invention relates to the field of vehicle control, in particular to a vehicle downhill constant-speed control method and system based on a hydraulic retarder and a storage medium. According to the ramp information and the state information of the vehicle, fitting wind resistance and road resistance coefficients of the vehicle based on a least square method; according to the wind resistance and road resistance coefficient and ramp information of the vehicle, first target brake pressure of a hydraulic retarder controller and second target brake pressure of a hydraulic retarder are calculated; calculating a proportional valve control input value, wherein the hydraulic retarder controls the vehicle speed based on the proportional valve control input value; the first target brake pressure and the second target brake pressure of the hydrodynamic retarder are calculated by fitting the wind resistance coefficient of the vehicle and the road resistance coefficient, the pressure of the working cavity is adjusted through the input value of the pressure closed-loop control proportional valve, and the precision and stability of vehicle downhill constant-speed control are remarkably improved; and it is ensured that the vehicle can still rapidly and stably maintain the target vehicle speed when the gradient changes, and the driving safety and comfort are greatly optimized.

The invention belongs to the technical field of train loading, and particularly relates to a train loading method for laying materials in a layered mode. Comprising the following steps that (1) a compartment is cleaned and reinforced, and a batch of train wagons are pulled by a tractor to sequentially pass through two discharging bins at a constant speed after passing through empty wagons; (2) paving a first layer of material and a second layer of material through two discharging bins respectively; (3) the tractor reversely pulls the train wagon to sequentially pass through the two discharging bins at a constant speed; (4) paving a third layer of material and a fourth layer of material through two discharging bins respectively; and (5) loading the train on a heavy vehicle after coke flattening, cleaning and checking, and then loading the train. According to the invention, the loading efficiency is greatly improved, the loading time is shortened to 2.5-3 hours from 7-8 hours of 25-wagon loading, and the loading time is saved.

The embodiment of the invention provides a torque control method and device, equipment and a medium. The method comprises the steps that firstly, when a switching signal that a vehicle enters a constant-speed cruise mode from a self-adaptive cruise mode is detected, the speed deviation of the real-time vehicle speed of the vehicle relative to the target speed of the constant-speed cruise mode is obtained; then, if the speed deviation is larger than the preset speed deviation, according to the real-time speed and the target speed, the adjusting speed of adjusting the vehicle from the real-time torque to the maximum torque corresponding to the vehicle is determined; and finally, according to the adjusting speed, the vehicle is controlled to be adjusted from the real-time torque to the maximum torque. Through the method, the pause feeling of the vehicle during mode conversion is reduced, and the driving experience feeling is improved.

The utility model relates to the technical field of film coating machines, and specifically discloses a film-laying frame of a film coating machine, including a bottom frame, a film-laying rod, and a driving motor for driving the film-laying rod to rotate. A shaft is fixedly arranged at the bottom end of the film-laying rod, and the motor shaft of the driving motor is coaxially connected to the bottom end of the shaft through a coupling. A cavity is provided inside the film-laying rod, and a through groove is provided outside the bottom of the film-laying rod. A clamping block is inlaid inside the through groove. An adjusting rod is threadedly connected inside the film-laying rod, and a conical cylinder for pushing the clamping block to move horizontally is fixed at the bottom of the adjusting rod. The technical solution of the utility model is to vertically place the film roll on the film-laying rod, and then rotate the adjusting rod to push the clamping block to contact closely with the inner wall of the inner core of the film roll. The film-laying rod is driven to rotate by the driving motor so that the film roll rotates at a uniform speed, so that the film on the film roll can be easily used, and the film use efficiency is improved. When the film roll is replaced, it is only necessary to reversely rotate the adjusting rod to easily remove the film inner core. This structure is conducive to improving the efficiency of installing and disassembling the film roll.

The invention discloses a method for achieving starting and dynamic power output of a range extending system. The method comprises the following steps that 1, a BMS feeds back an electromagnetic SOC to a VCU in real time; 2) judging by the VCU; (3) a shutdown instruction is sent to the ECU; 4) the ECU controls the engine to stop and sends a stop instruction to the GCU; (5) the GCU controls the generator to stop; (6) a starting instruction is sent to the ECU; (7) the ECU sends a starting instruction to the GCU; (8) the GCU drags the engine at a constant speed; (9) the ECU judges whether an ignition instruction is sent or not according to the rotating speed, the oil temperature and the water temperature; (10) the GCU stops dragging; (11) the ECU controls the engine to enter an idle speed; and (12) the ECU sends a preparation completion instruction to the VCU, the situation that energy consumption is increased due to the fact that a traditional range extending system repeatedly switches on and off and frequently adjusts rotating speed gears in the battery charging process is optimized, when the working condition is stable, the battery is kept at a proper capacity, the stability of the battery is improved, and the service life of the battery is prolonged.

The invention discloses a jacket pressure-bearing equipment corrosion defect in-service detection device and detection method, the jacket pressure-bearing equipment corrosion defect in-service detection device comprises a transverse frame, first arc frames are fixedly mounted on two sides of the transverse frame, the middle ends of the first arc frames are movably connected with contact wheels through bearings, and the lower ends of the back surfaces of the first arc frames are movably connected with second arc frames through hinges. The first arc-shaped frame and the second arc-shaped frame form a hoop structure capable of being opened and closed, the positions of the supporting wheels are adjusted in cooperation with a second screw and a movable frame, jacket pressure-bearing equipment with different pipe diameters can be rapidly adapted, overall rapid installation and fixation are achieved, a servo motor is controlled through a PLC to drive a ball screw, and the clamping device is convenient to use. The detection probe is driven to move at a constant speed along the surface of equipment, so that the problem of detection signal fluctuation caused by non-uniform moving speed in traditional manual operation is avoided, the stability and reliability of detection data are ensured, and the defect detection precision is remarkably improved.

The invention discloses a large steam turbine valve leakproofness test method, and relates to steam turbine valve leakproofness tests. In order to solve the technical problem that in the prior art, a steam turbine valve leakproofness test method capable of reducing the starting time of a unit, saving the starting cost and improving the safety of the unit in the starting stage is urgently needed, the technical scheme provided by the invention is as follows: a large steam turbine valve leakproofness test method is provided. Comprising the steps that boiler steam pressure of a turbine corresponding to a target valve is adjusted to a preset interval; detecting the rotating speed of the steam turbine unit in the state that all the main valves are opened and the speed regulating valve is closed; when the rotating speed is smaller than a preset threshold value, a main throttle valve leakproofness test is conducted; the main valve leakproofness test specifically comprises the following steps: opening a speed regulation valve at a preset constant speed, gradually increasing to a full-open position, judging the current rotating speed of the steam turbine unit, and outputting a leakproofness qualified result if the current rotating speed is smaller than a preset threshold value. The device is suitable for the leakproofness test of the large steam turbine valve.

The invention relates to the technical field of elevator fault diagnosis, in particular to an elevator fault diagnosis and positioning method based on big data, which comprises the following steps: acquiring speed and load data of an elevator and vibration acceleration in vertical and horizontal directions; each elevator operation stage is divided into a starting stage, a constant speed stage and a braking stage, and amplitude change coefficients and amplitude frequency coefficients of the starting stage and the braking stage during each elevator operation are obtained, so that vibration abnormal coefficients of the starting stage and the braking stage during each elevator operation are obtained; the method comprises the following steps: calculating a vibration consistency coefficient influenced by unbalance of a traction sheave of the elevator when the elevator runs each time so as to obtain a vertical vibration abnormal value when the elevator runs each time, calculating an inherent frequency approximation coefficient of vibration acceleration in the horizontal direction when the elevator runs each time so as to obtain an elevator fault significant value in each monitoring time period, and diagnosing an elevator fault condition. And fault positioning is carried out in combination with the classification model. The accuracy of elevator fault diagnosis and positioning can be improved.

To provide a game machine capable of making a player enjoy a game.SOLUTION: A game machine includes a plurality of reels and a plurality of stepping motors for rotating the corresponding reels. Each reel is so constituted that a belt-like reel tape is attached to an outer peripheral surface of a reel frame. If, in half or less of support parts out of a plurality of support parts in the reel frame, support pillars constituting the support parts are separated into an upper piece and a lower piece and are damaged to the extent that the pieces do not contact with each other when the reels rotate, when the reels rotate at a prescribed constant speed, an abnormality related to the rotation of the reels is not detected. On the other hand, when a depression operation is performed on a stop button during the rotation at the constant speed, half or more reels stop at a position deviated from a design value at least by one step or more.SELECTED DRAWING: Figure 193