54results about How to "Improve automatic control" patented technology

A soft landing control system for a screeding device is operable to automatically lower a vibrating member of a screed head assembly into engagement with a concrete surface at a time and place where the vibrating member is not positioned over an overlap area of already screeded concrete. The vibrating member is automatically lowered onto newly placed concrete at or near the junction or cold-joint between the already screeded concrete and the area of newly placed concrete, so as to avoid depressions in the already placed concrete. Optionally, the soft landing control system may include a timing device and may lower the vibrating member after a period of time following an activating event. Optionally, the control system may detect when the vibrating device is positioned at or near the newly placed concrete and may lower the vibrating member in response to such detection.

A thermal printer utilizing a platen on which media can move over a print head in association with print ribbon from a supply spool driven by motors connected to a print ribbon supply and take-up with a program to provide current settings and engine control to the ribbon. The printer further has a ribbon support, a program, and a processor connected to a drive for causing the drive to move the support in response to ribbon width. The printer has a control panel, a file system with current settings connected to the file system, and further includes engine control software for controlling the printer functions including print head pressure, print head temperature, and a ribbon support based upon the width of the print ribbon.

The invention relates to a process for preparing novel expanded ammonium nitrate explosive, which comprises the following steps: water-phase dissolving and oil-phase melting; mixing two phases; expanding crystallization; realizing uninterrupted discharging through alternately converting vacuum cavities; mixing expanded explosive with a functional additive which is subjected to measurement after a product is dropped into a cool mixed spiral through a feeding bin; dropping a prepared semifinished product of the expanded explosive into a suspension conveyer through a spiral conveying device; and conveying the semifinished product to a filling package workshop by the suspension conveyer for explosive filling to obtain a finished product of the expanded ammonium nitrate explosive through package. The invention is the process for preparing the expanded ammonium nitrate explosive with safety and environmental protection, zero discharge of pollutant, small online explosive amount, high operating safety and high automatic control.

A rail non-contact vehicle includes wheels, a vehicle main body supported by the wheels, and a steering control system. The steering control system includes a control section configured to control a steering of the wheels in a non-mechanical manner, and a drive section configured to mechanically drive the steering of the wheels. The control section includes a first detector configured to detect 1-dimensional coordinate data of a target route, a steering angle holding section configured to hold a target steering angle corresponding to the 1-dimensional coordinate data, a second detector configured to detect a current deviation between the target route and a current position of the vehicle main body, and a control steering angle calculating section configured to generate a control steering angle corresponding to the current deviation and the target steering angle.

The invention discloses a ball grinding mill load detecting method for optimizing the BP neural network based on the genetic algorithm. The method comprises the first step of collecting starting grinding sound and the stopping grinding sound of a ball grinding mill, the second step of carrying out off-line processing on the grinding sound, the third step of selecting an effective frequency band of the grinding sound, the fourth step of calibrating load data of the ball grinding mill, and the fifth step of optimizing BP neural network modeling based on the genetic algorithm and carrying out predicting on loads of the ball grinding mill to obtain a load detecting result of the ball grinding mill. According to the method, a plurality of sets of experiment data are obtained by analyzing the grinding sound frequency spectrum and selecting the effective frequency band range of the grinding sound, the experiment data are utilized for training the load model, and after training, the model can be used for predicting the loads of the ball grinding mill. The method is convenient to achieve, high in adaptability and capable of providing related detection data for optimization and control of the ball grinding mill, and automatic control and energy-saving and consumption-reducing capabilities of the ball grinding mill are improved.

The invention discloses a portable dry-wet dual-purpose smoothbore pipe and line bore pipe inner surface wiping and cleaning device. Device wiping liquid is supplied through a quantitative spraying method, and supplying is even and controllable. Long-time and durable work of a standby power source is achieved through a small-power wiping and large-diameter pipeline mechanism. The device is compact and ingenious in structure and light in weight, and carrying and field work are facilitated. A ball head washing handle brush has the automatic advancing and retreating function, the axial force and deformation stressed by a flexible shaft are eliminated, abrasion of the flexible shaft is relieved, and rotation can be achieved in a labor saving mode. A reliable sealing structure is adopted, and a solution and gas do not leak. The device solves the problems that a current wiping machine depends on a power source and cannot wipe a large hole, carrying is not convenient, liquid supplying cannot be quantitative, spraying cannot be achieved, and equipment is corroded through leaking liquid. The wiping method is divided into a dry wiping mode and a wet wiping mode, spraying is not carried out during dry wiping, the ball head brush is directly used for rotary wiping, and during wet wiping, spraying and liquid supplying are carried out at the ball head brush while the ball head brush carries out rotary wiping.

The present invention discloses direction correcting apparatus and method thereof for a movable radiation inspecting system having a moving device. The direction correcting apparatus comprises: a direction detecting device for detecting a moving direction of the moving device and generating a detecting signal indicating the moving direction; a direction control device for controlling the moving direction of the moving device; and a control unit for calculating a deviation value between the moving direction and the predetermined direction based on the detected signal received from the direction detecting device, and the direction control device is driven according to the deviation value to correct the moving direction to the predetermined direction. The direction correcting apparatus according to the present invention can automatically control the movable radiation inspecting system to move linearly in a predetermined direction during working, which enhances automatic control degree, and has a simple structure with installing easily and reduced cost. And it also does not influence the normal running of the inspecting system on a road while not inspecting.

The present invention discloses an automatic lamp replacement device and ultraviolet curing equipment, wherein the automatic lamp replacement device comprises: an acquisition unit used for acquiring the luminous intensity information of ultraviolet lamps; a processing unit used for determining that the ultraviolet lamps need to be replaced and generating a control signal when points with values which are less than a set value exist in the luminous intensity information received from the acquisition unit; a control unit used for controlling a carrying device to work according to the control signal received from the processing unit; and the carrying device used for removing the ultraviolet lamps determined to be the ones needing to be replaced and installing new ultraviolet lamps under the control of the control unit. The automatic lamp replacement device provided by the present invention can improve the automatic control accuracy of the ultraviolet curing equipment.

The invention relates to the technical field of ship body segmented turnover devices. The invention further discloses a fixed type thin plate segmented turnover device. The device comprises a supporting frame, stand columns are fixedly installed on the right side of the supporting frame, a lifting cross beam is movably installed at the top between the two stand columns, a rotating mechanism is fixedly installed at the top of the lifting cross beam, a rotating hinge is fixedly installed at the other end of the rotating mechanism, and a rotating platform is fixedly installed on the lifting crossbeam through the rotating hinge. According to the fixed type thin plate segmented turnover device, through the special turnover platform, structural deformation of thin plate segments in the turnoverprocess is avoided; by means of the new connecting mode of the locking trolley and the turnover frame, the efficiency of segmented fixing and locking is effectively improved, and the segmented arrangement range of lifting lugs is enlarged; the lifting mechanism and the rotating mechanism are used for providing ascending and overturning power for the rotating platform, segmented turnover automaticcontrol is effectively improved, operation is high in quality and efficiency, the device is safe and reliable, and the workload of operators is effectively reduced.

The invention relates to an electrical appliance for bed-ridden people, in particular to an electric fan, which expands the range of application based on the electric fan. The invention is a device worked for the bed-ridden people, and consists of a driving part (1), a work part (2) and a service portion (3). People lie in the service portion (3); the work part (2) is positioned right above human bodies; the driving part (1) draws or drives the work part (2) to undertake all works including blowing, repelling mosqitoes, touch, beating and massage. The electrical appliance for the bed-ridden people has the advantages: 1, energy saving. When people are asleep, the electrical appliance can be used to replace an air conditioner to greatly save electricity; 2, environmental protection. Unlike a mosquito repellent, the electrical appliance does not cause air pollution when used for repelling the mosqitoes; and 3, self-help. People can operate the electrical appliance personally for touch and other works without the help of others. The electrical appliance can be used as a robot for the bed-ridden people by increasing automation in the future.

The invention relates to a method for controlling a side guide of a metal strip (1), in particular in the inlet or outlet of roll stands or driving apparatuses, wherein the side guide comprises a guide (2, 4) disposed laterally to the metal strip (1) on both sides of the metal strip (1), and the guides (2, 4) can be displaced independently of each other. One of the guides (2) is thereby driven by means of position control, and a second of the guides (4) is driven by means of force control, wherein forces of the metal strip (1) acting on the first guide (2) and the second guide (4) are measured. The target force for the second, force-controlled guide (4) is thereby prescribed as a function of the measured force on the first, position-controlled guide (2), wherein as the force on the first, position-controlled guide (2) increases, the target force for the second, force-controlled guide (4) is reduced. In particular, damage to the guides (2, 4) and to the metal strip (1) can be prevented or at least reduced by means of said type of controlling.

The invention discloses a CPT atomic clock frequency taming control circuit. Through the frequency taming control circuit, frequency shift of a CPT atomic clock can be accurately measured based on a frequency multiplication and quantitative time delay short time interval measurement method, and different frequency taming control methods are proposed according to the frequency shift, thereby realizing taming of the frequency of the CPT atomic clock in a short time to suppress the frequency drift problem of the CPT atomic clock. The implementation mode provided in the invention has the advantages of simple structure and easy debugging, improving automatic control and autonomous operation of frequency taming of the CPT atomic clock and enabling the frequency taming of the CPT atomic clock tobe flexible and convenient to operate.

The invention relates to an intelligent clothes-airing device and belongs to the field of smart home. The invention specifically relates to a foldable clothes-airing rod which comprises a foldable shaft and a clothes-airing rod body, wherein the clothes-airing rod body is fixed on the foldable shaft and the clothes-airing rod body can be rotated around the foldable shaft so as to put the clothes on the clothes-airing rod body in the indoor or outdoor space. The invention discloses the foldable clothes-airing rod. The transfer of the clothes from the indoor space to the outdoor space can be quickly realized; the clothes are effectively protected; under gale or rainy weather, the clothes settlement and storage can be quickly realized; in the storage process, the clothes are prevented from falling off; the intelligent and automatic clothes airing can be realized; the household comfort is increased; the intelligent degree of smart home is increased; the structure is simple, the use is convenient and the intelligent clothes-airing device is easy to popularize; the airing quality of the clothes can be effectively ensured; the clothes can be conveniently placed in the indoor or outdoor space; the clothes can be conveniently hung.

The invention discloses a purging method for a signal reception optical window of an online laser analyzer. Purging gas is used for purging the signal reception optical window of the online laser analyzer. The method is characterized in that the purging gas contains alkyne gas, N2, O2 and CO, wherein the content of O2 is lower than 0.10%, and the content of CH4 is lower than 4%. By means of the purging method, it is ensured that the transmittance of the laser analyzer is maintained above 90%, the optical window is cleaned, and it is guaranteed that carbon black dust in process media and water drops cannot be settled on the signal reception optical window of the laser analyzer. By selecting purging gas sources, stable operation of the laser analyzer is ensured, besides, the situation that external gas is brought into the process media and consequently affects product quality is avoided.

The invention discloses a multifunctional formula automatic control method for a titanium dioxide enveloping system. The method overcomes the defects that labor intensity is high, a technical formula is inaccurate and inflexible, the formula is prone to losing confidentiality, unqualified products are prone to being generated, so that production cost is high in an existing operation method. Meanwhile, the functions of formula automatic control, formula preparation, formula modification, enveloping pre-computation and result display, enveloping result computation and enveloping result display of the titanium dioxide enveloping system are added, the optimal, multipurpose and multifunctional enveloping formula of the enveloping system is obtained, enveloping formula confidentiality of the enveloping system is achieved, energy is saved, consumption is reduced, and the product pass percent and factory benefits are improved.

The invention relates to a drivetrain having an automatic clutch.