49results about How to "Adjust the speed in time" patented technology

The invention discloses a gyro-type dynamic self-balancing pan-tilt which comprises a frame component, a motor component, shooting equipment (1) and a control component; the control component comprises a processor and an inertial sensor; the inertial sensor detects the posture information of the shooting equipment (1); the processor controls the motor component according to the posture information; and the motor component directly drives the frame component to rotate in a manner relative to the shooting equipment so as to adjust the shooting angle of the shooting equipment (1). According to the gyro-type dynamic self-balancing pan-tilt, the motor component is adopted as motive power to directly drive the frame component of the pan-tilt, so that less energy is consumed, and the electricity is saved; and meanwhile, the stepless adjustment can be realized in the driving of the motor, the action response time is short, various postures of a carrier body can be adapted to by quickly starting, stopping or timely adjusting the rotating speed, so that the shooting stability of the shooting equipment (1) is improved.

The invention discloses an active and passive realizing method of a healthy exercise trainer. When a trainer is in passive training, a control motor is in either a position mode or a speed mode, and upper and lower limbs are driven to exercise to finish the passive training through a training device; when the trainer is in active training, the upper and lower limbs of the trainer exert strength, the motor is set to be in a torque mode, and the motor is driven to rotate through the training device; and the trainer is in assisted training, a working mode of the motor is a combination of the torque mode and the position mode or the speed mode in the different time periods, the active and passive trainings can be achieved through the real-time switching of the control motor between the position mode or the speed mode and the torque mode. According to the active and passive realizing method of the healthy exercise trainer, the initiatives of the trainers who take part in the training can be improved, and either body builders or patients can autonomously regulate the training mode, speed and intensity according to their own physical conditions and physical abilities, so that the active and passive realizing method of the healthy exercise trainer can be suitable for the healthy training of different recovery stages and different psychologic statuses.

An intelligent windscreen wiper features that a rainfall sensor is installed to the front top of car to determine the value of rainfall and the motor of wind screen wiper is controlled by a single-chip microprocessor to work at optimal rotation speed. Its advantages are high reliability and anti-interference powr and high P/C ratio.

The invention relates to an artificial board surface defect online detection device based on the synchronous principle and belongs to the technical field of wood detection devices. According to the artificial board surface defect online detection device based on the synchronous principle, an encoder obtains instantaneous speed of a to-be-detected artificial board on a to-be-detected artificial board conveyer belt and conveys the instantaneous speed to a controller, whether the to-be-detected artificial board enters a shooting area or not is judged through a trigger switch, the controller sendsinstructions to a motor according to a detection signal to drive driven pieces including a camera to move at the speed identical with that of the to-be-detected artificial board, in the movement process, the camera completes shooting of the to-be-detected artificial board, images are then transmitted to a computer, defect discrimination is conducted on the obtained images through a processing algorithm, and meanwhile the camera can automatically return to the original position under the action of the resilience of a spring and gets ready for next shooting. The artificial board surface defectonline detection device based on the synchronous principle eliminates image motion blur fundamentally, solves the problems that according to traditional blurred image deblurring, a processing algorithm is complicated, consumed time is long and achieves machine visual online detection of surface defects of the to-be-detected artificial board.

A short cooling crucible used for billet continuous melting and directional solidification relates to a cooling crucible. The invention solves the problems of a present electromagnetic cooling crucible, including adhesion between a melt and an inner wall of the crucible, discontinuous melt melting, poor melt melting, uneven composition, low power utilization and inconvenient observation. The cross section of a red copper crucible main body (1) mentioned by the invention is a flat annular hollow cavity. The upper half body (2) is segmented into eight columns (7), of which the cross sections are petal shape. Vertical deep holes are arranged on the bottom face of the lower half body (3), corresponding to the position of the columns (7) with petal-shaped cross sections. Clearances (8) are arranged between every two adjacent columns (7) with petal-shaped cross sections. The clearances (8) are filed with insulating seal material layers (12). The invention makes the low cost melting and forming with high purified materials realized. Metals float in a water cooling copper crucible and are in soft contact with the inner wall of the crucible. The strong stirring of the electromagnetic powermakes the melt components even.

The invention discloses an intelligent management platform based on dynamic traffic graph spectrum analysis in the technical field of traffic management. The intelligent management platform based on dynamic traffic graph spectrum analysis comprises a data collection subsystem for data collection and coding, a query statistics subsystem for data query requests, a central processing system for dataanalysis and judgment, a data storage module for data storage and maintenance, a cloud server module for data information solution, a mobile intelligent terminal module for data information exchange and transmission, a video playing module for playing road traffic information and a voice prompt module. The invention can report the time required for the vehicle to the next intersection through thevoice prompt module, so as to prompt the vehicle owner to adjust the vehicle speed in time and reduce the waiting time due to the red light. The traffic light control module is electrically connectedwith the traffic signal lights, which makes it easy to adjust the display time of traffic lights in time, effectively reducing the traffic pressure of the large city.

The invention discloses a calcination production line and a calcination method for industrial by-product gypsum. The calcination production line comprises a feeding mechanism, a metering mechanism, an inclined conveyer belt, a scattering mechanism, a drying pipeline, a gas-solid separation tower, a negative pressure fan, a screw feeder, a horizontal-type rotational calcining kiln, a burning furnace, a finished-product conveying mechanism, a material storage tower, a temperature measurement display system and a PLC (Programmable Logic Controller) control system, wherein the drying pipeline is arranged vertically, the middle lower part of the drying pipeline is connected to a discharge port of the scattering mechanism, the upper end of the drying pipeline is connected to a gas inlet of the gas-solid separation tower, a gas outlet of the gas-solid separation tower is connected to a gas inlet of the negative pressure fan, a discharge port of the gas-solid separation tower is connected to the screw feeder, a discharge port of the screw feeder is arranged in the rotational calcining kiln, the burning furnace comprises a primary burning furnace and an auxiliary burning furnace, and multiple U-shaped heat exchange pipes are fixed in the rotational calcining kiln. The calcination method comprises the following steps of: charging, metering, scattering, drying, gas-solid separating, calcining, discharging, finished-product conveying, storing and cooling; and the calcination production line has the advantages of high automation degree, stable finished-product quality and lower energy consumption.

The invention relates to a hydraulic control system with dual-pressure compensation of anchor and mooring equipment. The hydraulic control system comprises a damping plug, wherein the damping plug isprovided with an oil inlet and a working oil hole which communicates with a system oil source; a four-way oil path is integrated in the working oil hole, wherein a first path is connected with a firstadjustable type throttle valve, a second path is connected with a first pressure compensation pilot valve, a third path is connected with a two-position three-way manual proportional reversing valve,and a fourth path is connected with a pressure measuring hole; the first pressure compensation pilot valve communicates with a shuttle valve; the two-position three-way manual proportional reversingvalve is connected with a second pressure compensation pilot valve; the second pressure compensation pilot valve communicates with a shuttle valve; and a pressure compensation valve communicates withthe system oil source. The hydraulic control system has the advantages that normal operation of anchor and mooring equipment can be met, and two different speeds are provided for an anchor gear working condition and a winch working condition of the anchor and mooring equipment, and are quickly switched, so that a throttling and heating phenomenon as a result of a small valve element opening degreeof a master control valve in an existing mechanical limiting way is effectively eliminated.

The invention relates to a high-grade intelligent electric vehicle, which adopts one or more step motors controlled by ARM to replace an automobile engine as a power device and can instruct each step motor to operate at a same rotational speed or different rotational speeds. A steering system is controlled by adopting a small step motor and can be coordinated with the power step motor to complete swerving. In order to improve safety performance, the high-grade intelligent electric vehicle configures a photoelectric distance-measuring instrument, an image monitoring instrument, a fingerprint identification instrument and a wireless receiving device and can acquire and transmit ambient information of the electric vehicle to the ARM for analysis and judgment, instruct the step motor to operate in time, and drive the electric vehicle to start, accelerate, fix the speed, normally drive, or forcibly decelerate, limit the speed and brake to achieve the aim of safe driving. An accumulator used by the electric vehicle is divided into a use set and a standby set; and two sets of the accumulators can be automatically exchanged. The standby set of the accumulator is charged by a solar battery, an on-board generator and a wind power generator, also can be charged by electric power of an industrial or civil alternating current electric network and provides reserved electric power for the continuous driving of longer mileage.

The invention discloses a military power supply case fan rotating speed control method. A traditional PID control principle, a neural network technology, a fuzzy control technology and a predictive control technology are combined, a novel controller structure is provided, by means of a neural network fuzzy PID control method based on a linear predictive model, a case temperature is judged in advance, and a fan rotating speed can be adjusted in time, so that stable power supplying of a military power supply case is achieved; moreover, multiple kinds of state quantities are acquired for comprehensive judgement, and a power supply case state can be monitored more accurately, so that a more accurate and reliable temperature adjusting mode is provided, and the precision of a power supply case power supplying amplitude value is greatly improved.

The invention provides a monitoring system for monitoring vibration strength and amplitude of vibrating motors, and belongs to the field of PCB board electroplating. The monitoring system comprises a plurality of PCB board electroplating tanks, wherein the vibrating motor and a vibrating steel plate are mounted on sway stands which are positioned on the two sides of each PCB board electroplating tank; a vibration strength sensor is mounted on each vibrating steel plate and is in wireless connection with a monitoring host; each vibration strength sensor is used for acquiring signals of the vibration strength and amplitude of each vibrating motor; a main control module and a display module are arranged on the monitoring host; the main control module is used for receiving the signals of the vibration strength and amplitude of all vibrating motors; the display module is used for displaying the received signals of the vibration strength and amplitude; an alarm module connected with the main control module is also arranged in the monitoring host. Compared with the prior art, the monitoring system has the advantages that the monitoring host displays and monitoring the vibration strength and amplitude of the vibrating motors, and rotation speed of the vibrating motors can be adjusted or the vibrating motors can be replaced in time, so that bubble-shaped hole breakout on PCB boards can be carried out, and a hole filling rate of medicinal liquid is increased.

The invention discloses a sintering, mixing and material distributing device for a blast furnace. The device comprises a head-swinging belt, a storage bin and a wide belt, wherein a discharging end of the head-swinging belt is arranged above a feeding inlet of the storage bin, the bottom surface of the front wall of a discharging hole at the lower end of the storage bin is shaped like a concave circular arc, and wide belts are horizontally arranged below the storage bin at intervals. The sintering mixing and material distributing device disclosed by the invention is simple and reasonable in structure, the shape of the bottom surface of the discharging hole of the storage bin is improved and a mixing charge level in a 'meniscus shape' is pulled off in a wide belt material dragging manner, thus sintering and mixed materials are distributed more reasonably, 'edge effect' in a sintering process is eliminated, and sintering capacity can be greatly improved.

The embodiment of the invention discloses a wire feeder control method, a controller and a storage medium. The method comprises: a controller outputting a high-frequency driving signal at intervals, and the frequency of the high-frequency driving signal being larger than 20 KHz; the controller sampling back electromotive force of the motor during the period of not outputting the high-frequency driving signal; and the controller adjusting the high-frequency driving signal according to the back electromotive force. According to the embodiment of the invention, the high-frequency driving signal is output through the gap, the driving frequency of the motor is improved, and the motor is prevented from generating noise. The back electromotive force of the motor is collected within the interval time when the high-frequency driving signal is not output, and the interval time is adjustable, so that the turn-off peak time can be avoided, and a stable counter electromotive force signal is obtained. Meanwhile, the driving signal with higher frequency is adopted, so that the speed of adjusting the driving signal of the next period based on the driving signal of the previous period is more timely, namely, the updating speed of the driving signal of the motor is improved, and the dynamic response performance of the motor is improved.

The invention discloses a speed adjusting method and device for USB data transmission, which comprises the following steps of acquiring the speed data for the data transmission between a USB host anda USB host; determining whether the current data transmission rate is jumped according to the rate data and preset conditions; when it is determined that the rate of the current data transfer is toggling, turning off the corresponding pin. The present application can effectively avoid the data interruption and the network unavailability caused by switching USB 3.0 and USB 2.0 mutually.

The invention discloses an intelligently controlled four-axis variable linear equal thickness vibrating screen. The screen includes a screen box, a vibrating screen mesh, vibration damping springs, screen box supports, vibration exciters, a sensor, an integrated operational amplifier, a digital signal analyzer and an intelligent controller. The vibrating screen mesh is located at the bottom of thescreen box. The screen box is connected to the screen box supports through the vibration damping springs. Each vibration exciter consists of a variable frequency motor and a drive shaft with an eccentric block. Each driving shaft is connected to the corresponding variable frequency motor through a flexible coupling. The sensor is connected to the integrated operational amplifier through a data transmission line. The integrated operational amplifier is connected to the digital signal analyzer through a data transmission line. The digital signal analyzer is connected in series with the intelligent controller and the variable frequency motor to form a closed-loop feedback control system. A vibration exciting source of the four-axis variable linear equal thickness vibrating screen is directlyadjusted through the feedback control system, the vibration condition can be automatically adjusted without the adjustment of external vibration exciting force to make the four-axis variable linear equal thickness vibrating screen in an ideal working state to improve the screening efficiency.

The invention provides a real-time display monitoring system of vibration motor during a PCB electroplating process, and belongs to the PCB electroplating field. The real-time display monitoring system of vibration motor during a PCB electroplating process includes a plurality of electroplating devices; each electroplating device includes a plurality of electroplating devices; a hanger of each electroplating device is provided with a high frequency direct current brushless vibration motor; a driver of the high frequency direct current brushless vibration motor is in wired communication connection with a control host; the driver receives a control signal sent from the control host, and feeds back a rotating speed signal of the high frequency direct current brushless vibration motor to the control host in real time; and the control host includes a monitoring interface for integratedly displaying the rotating speed of each high frequency direct current brushless vibration motor. Compared with the prior art, the real-time display monitoring system of vibration motor during a PCB electroplating process integratedly display the operating situation of the vibration motors of the plurality of electroplating devices on the monitoring interface, so that a work staff can monitor the operating situation of each motor at any time and can timely adjust the rotating speed of each motor so as to timely solve the problem timely that the waste board rate and reject rate of PCB are generated because the vibration intensity of the motors cannot reach the standard.

The invention discloses an auxiliary drilling control system. The auxiliary drilling control system is characterized in that a data acquisition module is used for acquiring data information of drilling work and transmitting the data information to a data processing module, the data processing module is used for processing the data information to obtain data processing information and transmittingthe data processing information to a data analysis module; the data analysis module is used for analyzing the data processing information to obtain data analysis information, and transmitting the dataanalysis information to a control module; a transmission module is used for transmitting data among all the modules; a control module is used for receiving and processing the data analysis information to generate data control information; an adjusting module is used for receiving the data control information and adjusting the drilling work of a drill bit. According to the auxiliary drilling control system, the defect of poor control effect caused by incapability of monitoring the drilling condition can be solved, and the problem of incapability of timely adjusting according to the working condition of the drill bit can be solved.

The invention relates to a novel hydrodynamic high-frequency cannonball launching recoil simulation test device, and belongs to the technical field of hydrodynamic test simulation systems. In order tosolve the technical problems that the stability of a ship under a special operation condition is not considered in the existing ship body stability test, the defects exist in the test process, the influence of the continuous pulse type cannonball recoil on the ship body attitude angle in the high-frequency launching process of the ship cannonball is not studied and analyzed and the like, the invention designs a simulation test device comprising a cannonball positioning and conveying device 1, a cam rotating high-frequency knocking structure 2, a ship model upper end face 3 and a cannonball direction adjusting structure 4, equivalent high-frequency cannonball launching impulse action conditions can be provided for a test model, and the test environment of a scaling model water surface shooting operation can be simulated more truly. The defect that a traditional stability test does not consider the influence condition of cannonball shooting on the ship body is overcome, so that the hydrodynamic stability of a naval vessel is simulated more truly, and the accuracy of the hydrodynamic test of the naval vessel is improved.

The invention relates to a square electromagnetic cold crucible, in particular to a square electromagnetic cold crucible for continuous melting and organizational control of polycrystalline silicon, which aims to solve the problems that the crucible loss is too high, a newly-formed silicon bulk is probably stuck in the cavity of the crucible, the continuous melting process can terminate easily, the electromagnetic force is too concentrated and the organizational control effect is poor as a result of the small cavity size of the existing electromagnetic cold crucible. The square electromagnetic cold crucible comprises a crucible body, a water inlet pipe, a water outlet pipe, a plurality of thin water pipes and an induction coil, wherein the crucible body is composed of an upper half body and a lower half body; the induction coil is sleeved on the upper half body; the cross section of the crucible body is a square ring-shaped cavity; the upper half body is divided into 16 cylinders of which the cross sections are petal-like; the bottom surface of the lower half body, corresponding to the positions of through holes of the cylinders with the petal-like cross sections, is provided with longitudinal blind holes; and each blind hole is communicated with the water outlet pipe. The square electromagnetic cold crucible is used for continuous melting and organizational control of polycrystalline silicon particles.

The invention discloses a preparation method of a food dough material and a making method of sweet soup balls. The preparation method of the food dough material comprises steps as follows: firstly, cereal primary pulp is prepared from cereals and water in an appropriate ratio, and then the fresh cereal primary pulp is blended with cereal powder to form the dough material by kneading. The making method of the sweet soup balls comprises steps as follows: the dough material is directly processed manually or by a sweet soup ball making machine and the sweet soup balls are obtained, or the sweet soup balls are prepared from the dough material and stuffing. According to the preparation method of the food dough material, the cereal primary pulp can be directly added to the cereal powder for doughkneading, and rice aroma is retained in the cereal primary pulp, so that food prepared from the dough material tastes good. When food such as the sweet soup balls, rice cakes and the like is preparedfrom glutinous rice primary pulp and glutinous rice flour with the method, quality of glutinous rice food is guaranteed by reducing the usage amount of the glutinous rice flour, besides, the amount of sewage discharged by the glutinous rice flour production is reduced, and processing cost of the glutinous rice primary pulp is greatly lower than that of the glutinous rice flour, so that the processing cost of the glutinous rice food is reduced.

The invention provides a steel belt retractor, comprising a winding shaft, a bracket and a brake device, the bracket supports both ends of the winding shaft, a brake device is arranged on the bracket at one end of the winding shaft, and the brake device It includes a brake disc, a brake disc head, a brake lever and a weight. One end of the brake lever is hinged to the brake disc head, the middle part of the brake lever is hinged to the bracket, and a weight is hung on the other end. The other end of the brake pad head is provided with the brake pad; the low cost of equipment manufacturing is realized, the structure is simple, the transportation is convenient, and the steel belt is prevented from sagging when retracting and unwinding.