52results about How to "Ensure automatic control" patented technology

A system for controlling crop transfer from a self-propelled agricultural harvesting machine into the loading container of a hauling vehicle includes a transfer device assigned to the harvesting machine from which the crop emerges in the form of a crop discharge flow and a detection device which detects the position of the loading container relative to the harvesting machine and transmits it to a control unit. The control unit actuates at least one actuator assigned to the transfer device in such a way that the crop discharge flow lands within the loading container in order to fill it with crop. The control unit generates a control signal (S) for the hauling vehicle that specifies a position of the hauling vehicle relative to the harvesting machine that is suitable for transfer into the loading container.

The invention discloses a full-automatic hydraulic piling machine using a freely-lowering winch for driving a heavy hammer. The full-automatic hydraulic piling machine comprises a hydraulic control system and an electric circuit control system. The full-automatic hydraulic piling machine is provided with a pile lifting winch, the freely-lowering heavy hammer winch and automatic pile clamping mechanisms. The pile lifting winch and the freely-lowering heavy hammer winch are connected with a pile lifting control oil circuit and a heavy hammer control oil circuit respectively. The pile lifting control oil circuit and the heavy hammer control oil circuit are arranged in a hydraulic control system oil circuit in parallel. An automatic control rack hinge mechanism is arranged on the freely-lowering heavy hammer winch and connected with a PLC in the electric circuit control system. The automatic pile clamping mechanisms are arranged on a piling machine main arm, and a pile clamping system of the automatic pile clamping mechanisms is connected with the PLC. A diesel hammer is not needed for the automatic piling machine, a pile is automatically positioned, the piling process is fully automatic from beginning of the piling, operation is easy, labor is saved, efficiency is high, cost is low, and economic benefits are high.

The invention relates to a digital image processing method which comprises the following steps: successively carrying out video enhancement, video analysis and video understanding on highway video images acquired by a camera. As for the video enhancement, multiple low-resolution images of the same scene and with different exposure parameters are reconstructed into high-quality images with highlight brightness dynamic range and high resolution, thus providing high-quality video images for the video analysis level and raising reliability of video processing results. As for the video analysis, detection is carried out through moving objects, and space-time object characteristics of video ground and middle levels are extracted by motion estimation and target tracking video analytic algorithms so as to provide inferential basis for event identification in high-level video processing. As for the video understanding, identification of surveillance video events is completed by analyzing and understanding the space-time object characteristics provided by the video analysis level. According to the invention, types of detection events are broader and precision is higher. Through correct identification of events, automatic control of highways is ensured.

The invention provides a movable sleeve control method for pipeline steel, and belongs to the field of steel rolling. The method includes the steps that firstly, control parameters of movable sleeves between every two adjacent machine frames are determined through a first-stage computer and a second-stage computer according to the following formulas, wherein the target temperature of a strip steel finish rolling outlet is smaller than or equal to 810 DEG C, and the thickness of a finished product is larger than or equal to 8 mm; secondly, a table model of movable sleeve steel type tension coefficients is set up through the second-stage computer according to the requirements for process data and steel types, and steel type tension coefficients of different movable sleeves are obtained by looking up a table and sent out through the second-stage computer during rolling. By means of the movable sleeve control method, the hydraulic movable sleeves between the hot continuous rolling finish rolling machine frames are automatically controlled when the pipeline steel is rolled, the problem that the hydraulic movable sleeves between the hot continuous rolling finish rolling machine frames vibrate is solved when the pipeline steel is rolled, and abnormal shutdown time is shortened.

The invention discloses a multi-circuit processing type temperature intelligent control system, which includes a single-chip microcomputer, a buzzer connected to the single-chip microcomputer, a data memory, a display screen, a power supply, a constant current drive control circuit, an A/D conversion circuit and a signal filter An amplifier circuit, a vibration sensor connected to the input end of the A/D conversion circuit, a heater connected to the output end of the constant current drive control circuit, and a temperature sensor connected to the input end of the signal filter amplifier circuit. The vibration frequency information of the pot body collected by the vibration sensor and the temperature information of the soup in the pot detected by the temperature sensor are analyzed and processed by the single-chip microcomputer. Certain, so that the soup in the pot maintains a certain temperature, and at the same time, effectively saves power resources.

The invention relates to a cooking range generating steam by using waste heat. The cooking range a furnace body, a furnace head and a water tank, wherein the furnace body is combined by an inner furnace wall and an outer furnace wall; a hollow region surrounded by the inner furnace wall is a hearth; a plurality of tubular fire bars are uniformly arranged below the hearth at intervals in the furnace body; the furnace head comprises an outer furnace ring, an inner furnace ring and a pot body supporting ring; the lower end of the inner furnace ring is connected to the inner furnace wall; the lower end of the pot body supporting ring is connected to the outer furnace wall; a cavity among the inner wall furnace, the outer wall furnace and the furnace head is a heating cavity; a coil surrounding the hearth is arranged in the heating cavity; a steam pipe communicating with the top of the heating cavity is arranged in the upper part of the water tank; a water outlet pipe communicating with the bottom of the heating cavity is arranged in the lower part of the water tank; a gas outlet pipe is arranged on the top of the water tank; a water inlet is formed between the steam pipe and the water outlet pipe on the water tank; and a float ball water inlet valve is arranged on the water inlet. The cooking range provided by the invention realizes efficient recovery of smoke heat and automatic control of water inflow in a stove using process.

The invention discloses a bilateral longitudinal sectioning slicer for bamboo products. The bilateral longitudinal sectioning slicer comprises a working table, a cutting device and a conveying belt, wherein the conveying belt is arranged at the right center position of the working table; the slicer also comprises two infrared positioning devices, two automatic pushing devices, a programmable logic controller and at least two displacement sensors; the two infrared positioning devices are arranged on the cutting device; each infrared positioning device is used for positioning the positions of longitudinal cutting openings in the bamboo products; the at least two displacement sensors are connected to one automatic pushing device respectively; each displacement sensor is used for measuring and transmitting edge positions of the bamboo products to the programmable logic controller; the programmable logic controller is used for controlling each automatic pushing device to adjust the positions of the bamboo products on the conveying belt. According to the bilateral longitudinal sectioning slicer for bamboo products, the quality of the bamboo products at the positions of slicing openings, thereby improving the cutting efficiency and quality; the waste of the bamboo products is avoided.

The invention relates to an intelligent agricultural water-saving valve. The intelligent agricultural water-saving valve comprises a valve seat, a valve cover and a valve chamber, wherein a fixed plate is arranged above the valve seat in parallel; a circular hole is formed in the middle of the valve seat; a plurality of supporting posts are uniformly arranged at the periphery of the circular holeof the valve seat; the supporting posts are fixedly connected with the valve seat and the fixed plate; the valve chamber is arranged on the fixed plate; a drive device is arranged in the valve chamber; the drive device sequentially passes through the bottom of the valve chamber and the fixed plate, and is connected with the valve cover; the valve cover is positioned above the circular hole of thevalve seat; a battery and a controller are further arranged in the valve chamber; the valve cover is in sealing contact with the valve seat; when the valve cover is positioned on a lower limiting position, the valve is closed and the valve cover is separated from the valve seat; and when the valve cover is positioned on an upper limiting position, the valve is opened. The intelligent agriculturalwater-saving valve is reasonable in design, is simple in structure, can automatically control opening/closing of the valve according to water level of a farmland, performs farmland water level regulation, and avoids water resource loss as a result of unmanned management of farmland irrigation, so that farmland irrigation water is greatly saved.

The invention provides an intelligent control device and method for walking of a coal mining machine. The intelligent control device and method are suitable for coal mining machines. The intelligent control device comprises a coal cutting roller motor current transducer, a coal mining machine traction motor current transducer, a roller rotation-speed transducer, a stress transducer, a vibration transducer installed on a coal cutting rocker arm, a laser sensor, a hall switch, a sensor controlling upward displacement of a hydraulic shaft, a master controller, a variable frequency driver and a traction motor. All the components of the intelligent control device are used for detecting all parts of the coal mining machine, and the coal mining machine is controlled to only operate through monitor data. The mechanical failures caused when the coal mining machine is in contact with rock stratums or faults in the coal cutting process are avoided. Meanwhile, it is guaranteed that automatic control over the process that automatic control over reciprocating coal cutting by a coal face of the coal mining machine is achieved.

The invention relates to an automatic control device and control method for converting contact force into displacement during electric spark deposition bead weld. The automatic control device mainly comprises a feeding mechanism, a floating elastic mechanism, a gun clamping mechanism, a welding gun, an electric control system and the like and converts the contact force between an electrode and a workpiece into displacement of a floating sliding table. A non-contact displacement sensor is adopted for detection, conversion from tension and pressure measurement to displacement measurement is achieved, the strength of a mechanical system is improved, and measurement of micro contact force can be achieved. The contact force between the electrode and the workpiece is determined according to the displacement of the floating sliding table, a controller and the feeding mechanism are used for controlling the electrode to move along the axis of the electrode, closed-loop control over the contact force is achieved, and vibration between the electrode and the workpiece can be reduced through spring damping of the floating elastic mechanism; and the stability and reliability of automatic control of the contact force between the electrode and the workpiece in the deposition process are remarkably improved.

The invention relates to an intelligent hydraulic hoist which comprises a hydraulic cylinder, a hydraulic station, a control cabinet, a centralized control machine, an upper monitor and mobile equipment. The intelligent hydraulic hoist achieves operation condition real-time remote monitoring, operation abnormal condition and fault remote diagnosis and operation instruction automatic control. Monitoring data and prompting and alarming information are transmitted to the upper monitor through the Internet or a special data line, and the monitoring data and the prompting and alarming information are transmitted to the upper monitor through a wireless data line or mobile short messages. The intelligent hydraulic hoist is wholly intelligent and digitized, automatic control over operation is guaranteed, full time domain monitoring of working conditions is achieved, intelligent remote diagnosis of faults and abnormal operation is achieved, and an intelligent guarantee is provided for normal operation.

The invention discloses an automatic joint debugging system for multiple air blower units and a control method thereof. The system includes several air blower units, a main control cabinet, a dissolved oxygen sensor and an oxygen demand acquisition and calculation system, wherein the dissolved oxygen sensor and the oxygen demand acquisition and calculation system are connected with the main control cabinet respectively. Each air blower unit is provided with a local PLC control cabinet for controlling the air blower unit, the local PLC control cabinet is connected with the main control cabinetthrough optical fiber, the dissolved oxygen sensor is used for measuring the oxygen amount of sewage, the oxygen demand acquisition and calculation system is used for collecting various parameter values of sewage and calculate the oxygen demand of sewage and sending the oxygen demand of sewage to the main control cabinet, the main control cabinet includes a PLC, and a PID control algorithm is integrated on the PLC controller. The main control cabinet regulates the oxygen supply of the multiple air blower units by controlling the oxygen supply of one air blower unit through the local PLC control cabinet.

The invention discloses a filling control system and method for a liquefied petroleum gas steel cylinder. The system comprises a handset, a wireless card reader, a station control module and a control module, the handset and the wireless card reader are respectively in wireless communication connection with the station control module; the handset is used for collecting personal information of a worker and steel cylinder information and binding the personal information with the steel cylinder information; the wireless card reader is used for reading steel cylinder information; the station control module is used for verifying personal information of workers and steel cylinder information, sorting steel cylinders according to the read steel cylinder information and distributing filling positions for the steel cylinders; the control module is provided with a filling gun electromagnetic valve control port, and the filling gun electromagnetic valve control port is electrically connected with a filling gun electromagnetic valve. According to the filling control system of the liquefied petroleum gas steel cylinder, supervision on workers is enhanced, the operation process of the steel cylinder filling process is standardized, and potential safety hazards are reduced.

The invention discloses a box-type piling machine for dark green tea. The box-type piling machine comprises a box body, a feeding mechanism, a humidity control mechanism, a temperature control mechanism, a piling mechanism and a controller. The feeding mechanism comprises a feeding port, and the feeding port is formed in the top of a shell; the piling mechanism comprises a piling bin, a bracket and a piling temperature sensor, wherein the piling bin is positioned in the box body, the top of the piling bin is open, and the piling bin comprises an inner bin baseplate and inner bin side walls; the piling temperature sensor is fixed to the corresponding inner bin side wall in the piling bin; the humidity control mechanism comprises a ventilation window and a humidity sensor; the ventilation window is mounted on the top of the shell, and the temperature control mechanism comprises a box temperature sensor, a heat exchange element and a heater, wherein the heat exchange element is mounted onthe inner side of the bottom of the shell; the piling bin is positioned right above the heat exchange element, the humidity sensor and the box temperature sensor are both mounted in the box body andpositioned outside the piling bin, and the humidity sensor, the ventilation window, the box temperature sensor and the heater are separately connected with the controller. The piling machine has a simple structure and can meet the requirements of traditional piling fermentation.