31results about How to "Control applies" patented technology

The invention provides a display device and a control method thereof and a gesture recognition method and belongs to the technical field of gesture recognition. The problem that selection and determination operations in existing gesture recognition must be performed respectively is solved. The display device control method comprises the steps of enabling a naked eye three-dimensional (3D) display unit to display a virtual 3D control picture, enabling a virtual distance between the virtual 3D control picture and a user's eyes to be equal to a first distance, and enabling the first distance to be smaller than the distance between the naked eye 3D display unit and the user's eyes; enabling an image collection unit to collect images of clicking motion on the virtual 3D control picture by the user; enabling a gesture recognition unit to judge the position of clicking on the virtual 3D control picture by the user according to images collected by the image collection unit, and sending control instructions corresponding to the clicking position to a corresponding execution unit. The control method can be used for controlling the display device and is particularly suitable for television control.

The invention provides a display device and a control method thereof and a gesture recognition method and belongs to the technical field of gesture recognition. The problem that selection and determination operations in existing gesture recognition must be performed respectively is solved. The display device control method comprises the steps of enabling a display unit to display control pictures, enabling a three-dimensional (3D) unit to convert the control pictures into virtual 3D control pictures and provide the pictures for a user, enabling the 3D unit to comprise 3D glasses, enabling a virtual distance between the virtual 3D control pictures and a user's eyes to be equal to a first distance, and enabling the first distance to be smaller than the distance between the display unit and the user's eyes; enabling an image collection unit to collect images of clicking motion on the virtual 3D control pictures by the user; enabling a gesture recognition unit to judge the position of clicking on the virtual 3D control pictures by the user according to images collected by the image collection unit, and sending control instructions corresponding to the clicking position to a corresponding execution unit. The control method can be used for controlling the display device and is particularly suitable for television control.

The invention provides a lutetium aluminate green fluorescent powder having a chemical general formula represented by Ce[x]Lu[3-x-y]M[y]Al[5]O[12], wherein M is at least one of La, Gd, Pr, Nd, Sm, Eu, Ga, Tb, Dy, Ho, Er, Tm, Yb and Sc, 0<x<0.1, and 0<y<0.1. The fluorescent powder is prepared by a high temperature solid phase method, and the synthesis temperature is 1300-1500 DEG C; the prepared fluorescent powder has the advantages of good optical properties, no impurity phases, good crystallization and basically no agglomeration, has nearly spherical particles and has the median particle size D50 adjustable in the range of 8-12 [mu]m; at the same time, the fluorescent powder has the advantages of relatively wide excitation spectra, high relative brightness, simple preparation process, low energy consumption, and environmental protection. The green fluorescent powder provided by the invention is suitable for preparation of white LED devices with combination of other primary-color fluorescent powders, and can be applied in the fields of illumination or display systems and the like.

The invention provides a lutetium aluminate green fluorescent powder having a chemical general formula represented by Ce[x]Lu[3-x-y]M[y]Al[5]O[12], wherein M is at least one of La, Gd, Pr, Nd, Sm, Eu, Ga, Tb, Dy, Ho, Er, Tm, Yb and Sc, 0<x<0.1, and 0<y<0.1. The fluorescent powder is prepared by a high temperature solid phase method, and the synthesis temperature is 1300-1500 DEG C; the prepared fluorescent powder has the advantages of good optical properties, no impurity phases, good crystallization and basically no agglomeration, has nearly spherical particles and has the median particle size D50 adjustable in the range of 8-12 [mu]m; at the same time, the fluorescent powder has the advantages of relatively wide excitation spectra, high relative brightness, simple preparation process, low energy consumption, and environmental protection. The green fluorescent powder provided by the invention is suitable for preparation of white LED devices with combination of other primary-color fluorescent powders, and can be applied in the fields of illumination or display systems and the like.

A rapid starting excitation control method for a diesel locomotive generator comprises the following steps of: 1, performing strong excitation for a generator according to the corresponding excitationoutput duty ratio according to a ratio K of a feedback voltage and a target voltage of the generator divided into a plurality of starting excitation phases; 2, when the ratio of the feedback voltageand the target voltage is larger than or equal to a target value, performing closed-loop regulation of the output voltage of the generator until the generator output voltage is quickly established andstable. According to the new scheme of performing time and intensity flexible distribution of the feedback generator voltage at different phases, the generator voltage feedback value is quickly closeto the target value, the strong excitation degree is gradually reduced so as to solve the problem of too slow or overshoot generator starting excitation and allow the starting excitation process to be fast and stable, and the rapid starting excitation control method for a diesel locomotive generator can be applied to different types of generators and has the same application for control of a brushless excitation generator.

The invention discloses a system for realizing closed-loop control of different types of integrated photonic systems, including: a control circuit part and a plurality of integrated photonic systems; the control circuit part includes: a feedback signal extraction unit, an analog front-end part, a digital control part, and an output drive part and the timing control part; the number of types of integrated photonic systems is j; the number of integrated photonic systems and feedback signal extraction units is k; the output terminal of the i-th integrated photonic system and the i-th feedback signal extraction unit The input terminals are connected; the i-th feedback signal extraction unit, the analog front-end part, the digital control part, the output drive part and the i-th integrated photonic system are connected in series to form a closed-loop loop; where, i=1,2,...,k,k ≥j, a total of k closed-loop circuits are formed; the system sequentially adjusts the 1st to kth integrated photonic systems based on the maximum value locking through the control circuit part, with small area, low power consumption and high integration, which is suitable for large-scale integration Control of photonic systems.

The first aspect of the present invention provides a non-contact human body control lamp control system, including a processor for controlling lamps and at least one image sensor, the image sensor is used to receive the face projection image formed by the face and hands and the hand The projected image is sent to the processor. Based on the projected image of the face, the processor can generate eye positioning information for the human eyes in the face; wherein, the processor can also set a mask that covers the projected image of the human face for the eye positioning information. The effective area, and when the image sensor detects that the face projection image overlaps with the hand projection image, the human body motion signal received in the effective area can be sent to the processor, and the processor controls the lamp based on the human body motion signal.

The invention relates to an MPC-based interconnected air suspension cooperative control system and method in the field of vehicle semi-active suspension system control. The cooperative control system consists of a sensor module, an extended observer module, an MPC controller, a damping coefficient controller, The interconnection state controller, vehicle body height controller, damping coefficient actuator, interconnection state actuator and body height actuator are composed; the MPC controller starts from the top layer and always attributes the influence of damping coefficient, interconnection state and body height on performance to their respective Suspension force provided by the executive agency, with the optimal suspension performance index as the optimization goal, the optimal suspension force is generated by the damping coefficient controller, the interconnection state controller and the vehicle height controller to control the corresponding actuator in turn, through the MPC The controller solves the optimal suspension force of the system, and then distributes the optimal suspension force sequentially through the damping coefficient, interconnection state and body height actuator, which improves the control accuracy and is suitable for control under any working conditions.

The invention discloses an intelligent flexible operating hand. The flexible tactile fingers are connected to the lower base plate of the base through the upper base plate of the base; the upper base plate of the base and the lower base plate of the base are connected and fixed with the base plate in the base; And fixed on the bottom plate of the base, it can realize the air pressure drive in the flexible touch finger; the air pump and the flexible touch finger are respectively connected to the main control module; the intelligent flexible operator uses four movable flexible touch fingers, which can realize the target object The flexible grasping of the flexible tactile finger is achieved by using conductive silica gel to realize the force perception of the flexible tactile finger, thereby realizing the purpose of adjusting and controlling the grip force of the flexible tactile finger; The intelligent manipulator grasps the attitude control, and the conductive silica gel is connected with the main controller to realize the reading of the force information of the flexible intelligent manipulator. The operator can be widely used in places where flexible gripping is required.

The invention belongs to the field of medicinal chemistry and provides a method for purifying a key intermediate of loratadine having a structure of formula (1). The structure of the formula (1) is. The purification method comprises: adding the crude product of the key intermediate of loratadine into an alcoholic solvent, stirring and dissolving, adding acid to form a salt, cooling and crystallizing, filtering, freeing, drying, and recrystallization to obtain purified loratadine key intermediates. The purification method of the key intermediate of loratadine provided by the present invention has good purification effect, and the yield and purity of the purified target product are high, which better ensures the process stability in the next step and is conducive to improving the quality of loratadine products The process of the purification process is simple, and the solvent used is common and easy to recycle, which greatly simplifies the industrial operation and is suitable for industrial large-scale production.

The invention relates to methods for controlling permanent magnet synchronous motors, in particular to a method for controlling high-power surface permanent magnet synchronous motors.By the aid of the method, the problem of inaccurate decoupling due to variation of parameters of motors in the traditional permanent magnet synchronous motor control procedures can be solved.The method for controlling the high-power surface permanent magnet synchronous motors includes steps of a, carrying out parameter offline identification procedures; b, carrying out parameter online identification procedures; c, carrying out parameter calibration procedures; d, carrying out permanent magnet synchronous motor running control procedures.The method has the advantage that the method is applicable to controlling permanent magnet synchronous motors and is particularly applicable to controlling the high-power surface permanent magnet synchronous motors.

The invention relates to the technical field of the foot pedal control device, and in particular relates to a foot pedal control device for an oil press. The foot pedal control device for the oil press comprises a U-shaped mounting seat, two pedals are connected to the U-shaped mounting seat through a connection shaft, and a sleeve used for separating two pedals is arranged between two pedals. The foot pedal control device for the oil press controls the rising state or declining state of the oil press by treading the foot pedal and the production cost is saved.