39results about How to "Achieve effective control" patented technology

The invention discloses a conference realizing method. The method includes the following steps that: a host initiates conference invitations to participants through conference service cloud; the participants respond to the conference invitations and participate a conference through the conference service cloud, and establish connections with a host client through the conference service cloud; the host and the participants distribute conference information; the conference service cloud acquires the conference information and additional domain information corresponding to the conference information; speech information in the conference information is converted into text information; and conference summaries are extracted from character information and the text information according to set extraction rules, and the conference summaries are correlated with spokesmen. The invention also provides a conference system. With the conference realizing method and conference system of the invention adopted, effective control in a conference process can be realized; and conference summaries can be formed; corresponding schedules can be added into a calendar, so that real-time tracking of work can be realized, convenience and quickness can be realized; a large quantity of client resources are not required to be occupied.

The invention discloses an electric field coupling-based wireless power transmission system. The system comprises a power supply circuit, a high-frequency inverter circuit, a tuning circuit, an electric field coupling polar plate, a rectifier filter circuit and a load circuit and is characterized by also comprising a coupling capacitance detection module, a controller and a fixed frequency drive circuit; a capacitance compensation array is arranged in the tuning circuit; the controller detects parameters of the electric field coupling polar plate and controls compensation values of the capacitance compensation array through the coupling capacitance detection module, and outputs fixed frequency control signals; and the fixed frequency signals are transmitted to the fixed frequency drive circuit, and then the high-frequency inverter circuit is driven to work. The electric field coupling-based wireless power transmission system has the advantages that based on the electric field coupling, the transmission capacity and efficiency of the system are improved by adopting an E amplifier; and by arranging the coupling capacitance detection module, the electric field coupling polar plate of the system is detected in real time, and the capacitance compensation value can be effectively controlled, so that the system is kept in the soft switching state, and the power transmission stability and reliability of the system are improved.

The invention relates to a post-production processing method for hollow fiber membranes, comprising: S1. Sending hollow fiber membranes containing a diluent into an extraction device, and extracting the membranes with an extractant to obtain extracted membranes and An extract containing an extractant and a diluent; the extract is sent to a buffer device; S2. In the buffer device, part of the diluent in the extract is precipitated, and then solid-liquid separation is performed to obtain a solid-phase diluent and the residual liquid, the residual liquid is sent to the concentration device; S3. In the concentration device, the extractant in the residual liquid is separated to obtain recovered liquid extractant and concentrated liquid. The invention also relates to a post-processing system for hollow fiber membrane production. According to the method and system provided by the invention, the operation safety is significantly improved, the production cost and environmental risk are reduced, the production technology of the hollow fiber membrane is significantly affected, and the application prospect is good.

The invention relates to a direct current motor servo driver, in particular applicable to control and driving of a direct current brushed motor with the rated voltage of 24V. The servo driver is composed of a motion control unit, a power supply and protection unit and a servo driving unit. The motion control unit is in charge of motion planning of a motor, carrying out interpolation operation on a planned path to obtain a speed and direction signal required by rotation of the motor and acquiring and processing a motor coded disc and armature current signal to form closed loop control; the power supply and protection unit supplies power to the whole servo driver, converts a motor control signal, acquires a motor current limiting and spacing signal and provides current limiting and spacing protection for the servo driver; and the servo driving unit directly drives the direct current motor and preprocesses the armature current and coded disc signal. The direct current motor servo driver provided by the invention simplifies wiring complexity and control difficulty and is flexible and convenient to use.

The invention belongs to the field of analytical chemistry, and in particular relates to a separation and determination method for erlotinib hydrochloride and related potential impurities. The method uses octadecylsilane bonded silica gel as the stationary phase, and elutes with methanol-acetonitrile mixed solution and phosphate buffered saline as the mobile phase. Separation, this method can also use high performance liquid chromatography for separation and determination, not only to achieve effective separation, but also to accurately determine the content of erlotinib hydrochloride and related potential impurities, with strong specificity and high sensitivity. The quality control and safety assurance of lotinib are of great significance.

The present invention provides a method and an apparatus for fracturing polycrystalline silicon, and the method includes steps of placing the polycrystalline silicon in a water tank containing water; applying an instant high voltage to the water tank so that high-voltage discharge occurs in the water of the water tank to fracture the polycrystalline silicon. The method and apparatus have advantages of simple process, uniform fragments and no metal contamination.

The invention discloses a control method of special bearing building in default bearing building process, comprising that: control entity at the network side receives the special bearing building request in the default bearing building process; the control entity at the network side judges whether continuing building the special bearing according to the preset condition, if true, continuing building the special bearing; otherwise keeping the special bearing building request, till reaching all the preset conditions, continuing building the special bearing. The invention discloses a control device of special bearing building in the default bearing building process, realizing the control on the special bearing building in the in default bearing building process by the entity at the network side, ensuring successfully building the special bearing in attached flow.

The invention relates to metal heat-treatment quantizing quenching device, based on water-base quench medium, which combines cooling request to run precise control. Wherein, connecting the liquid tankto quench bath by cooling inlet pipe, pump and valve; connecting the adaptation tank with heater to quench bath with material basket and over-flow slot and hole by pump and quench inlet pipe. This invention can decrease effectively cost and oil pollution, eliminates security hidden-trouble, and decreases the dependency degree to petroleum oil and derived products.