54results about How to "Realize two-way control" patented technology

The invention discloses a vertical lifting system of a double-winding permanent magnet fault tolerance motor and a control method of the vertical lifting system. A stator of the double-winding permanent magnet fault tolerance motor of the system comprises two sets of three-phase windings which are independent and symmetrically distributed, and an armature winding centralized type tooth isolation winding manner is adopted in the three-phase windings. According to the control method, mathematical models are established for the lifting work condition and the cable descending work condition of the system, and control over the two work conditions of the motor is achieved through a speed controller, a current controller, a voltage controller, a brake unit, an SVPWM and an inverter according to the established models and the collected and given motor signals; meanwhile, the open-circuit fault diagnosis and redundancy communication functions are added, and whether the winding open-circuit fault exists in the system or not can be diagnosed and processed. The system and method are easy to implement and high in reliability, power density and fault tolerance. The both-way control over the system lifting work condition and cable descending work condition can be well achieved, and the fault tolerance control over the open-circuit fault of the system can be achieved.

The invention provides a number collecting method in the session initiation protocol, when a session initiation protocol server needs subscriber numbers, a number collecting flow is started, comprises following steps: (a) the session initiation protocol server sends a number collecting message to a terminal; (b) when receiving the number collecting message, the terminal sends a number collecting response message which carries number information to the session initiation protocol server; (c) the session initiation protocol server receives the number collecting response message and records the number information in a data base. The invention offers a new negotiation mechanism for controlling the number collecting flow based on a offer-answer model, applies some fields of the negotiation content to indicate negotiation results, the utilization of the mechanism realizes bilateral control of a terminal side and a network side, considers will and capability of participants relate to the session fully, has better universality and extensibility.

The invention relates to a computer with a function of automatic adjustment based on smart home, and the computer comprises a display screen, adjustment mechanisms, and a substrate. The substrate is in transmission connection with the display screen through the adjustment mechanisms. The front surface of the display screen is uniformly provided with four cameras. The computer employs the horizontal axial adjustment mechanism, the height adjustment mechanism and the vertical axial adjustment mechanism to respectively adjust the horizontal angle, height and vertical angle of the display screen, and can guarantee the adjustment of the display screen at different angles. The four cameras are used for recognition of the head of a user and the feedback, and achieve the automatic adjustment function of the computer. Moreover, a first triode, a second triode, a third triode and a fourth triode form an H-bridge control circuit in a motor drive circuit, thereby achieving the bidirectional control of a motor, and improving the reliability of automatic adjustment.

The invention provides a self-adaptive adjusting method, which comprises the following steps of: acquiring information data, extracting at least one control variable reflecting an information auto-correlation according to the information data; sorting at least one control variable reflecting the information auto-correlation according to index demand; adjusting value of a controllable parameter corresponding to at least one control variable reflecting the information auto-correlation in a protocol stack according to the sorting result. The present invention also provides a sensor node and a sensor network having the sensor node. Moreover, the extracted control variable and the variable reflecting network communication condition received in the protocol stack can be combined and optimized according to the index command to realize the bilateral control, thus increasing the performance of network system.

The invention discloses workpiece paint spraying protection equipment adopting a gliding flow guide principle. The structure of the workpiece paint spraying protection equipment adopting the gliding flow guide principle comprises a controller, a main machine, a cooling groove, a fixing frame, a piece supporting mechanism, a paint spraying bin and pigment tanks. The main machine is of a rectangularstructure and installed at the right end of the fixing frame in an embedded manner. The top end of the fixing frame is provided with the paint spraying bin. According to the workpiece paint sprayingprotection equipment adopting the gliding flow guide principle, in the process of pulling out the workpiece supporting mechanism, the top of the workpiece supporting mechanism drives a pressurizing mechanism to conduct air pressure control in a sealed bin, so that the harmful gas suction speed of a flow guide assembly is increased, the bottom of the workpiece supporting mechanism drives a suctionmechanism in the flow guide assembly to synchronously move, the bottom of the suction mechanism generates rotation in the process of cooperating with inclined-face top seats, harmful gas is sucked through a reverse fan, and the harmful gas is discharged through two exhaust cylinders finally; and in this way, it is ensured that internal harmful gas is rapidly sucked within the process of pulling out the workpiece supporting mechanism, it is avoided that the harmful gas spreads outward and makes contact with workers, and threat to the life health is avoided.

The invention discloses a medical data collection method. The method comprises the steps of receiving registration information transmitted by a registration terminal, and obtaining customer information according to the registration information; detecting whether the customer is authorized or not to collect the medical data thereof according to the customer information; if the customer has authorized to collect the medical data thereof, detecting whether the customer is a valid customer or not; and if the customer is a valid customer, collecting the medical data of the customer, and configuringa doctor seeing record of the customer. The invention further discloses a medical data collection server and a computer readable storage medium. Automatic collection of the medical data of customersis realized according to the invention.

The invention provides a precision controllable linear driver comprising a base, a mover part and at least one drive member. The base is provided with a first cavity allowing relative movement of the mover part and a second cavity used for holding the drive members. The mover part comprises two outer end parts and a middle part; the outer end parts are detachably and rigidly connected with or integrated to the middle part; the mover part is made of permeability magnetic material; magnetic circuit structures in mutual action are formed between the drive members and the mover part. The invention further provides a combined precision controllable linear driver based on the precision controllable linear driver. The precision controllable linear driver and its combination are simple in structure and light in weight and meet the need of the modern industry for precision control drive equipment.

The invention provides an intelligent novel water groove cutting machine and relates to the field of electric tools. The cutting machine is reasonable in structure; a PLC (Programmable Logic Controller) program is used for controlling a movable box, an automatic feeding device and a water pump, so that digital automatic cutting and automatic cooling procedures are realized; the automation degree is high and the performance is safe and reliable. According to the cutting machine, hold-down mechanisms are arranged at the two ends of an I-shaped bracket; a working tabletop is provided with the automatic feeding device and manual control and automatic control can be realized. Each hold-down mechanism is composed of a small supporting frame, a hold-down hand wheel, a screw rod and a rubber compression disc; all types of workpieces can be effectively held down and the workpieces are not damaged. The automatic feeding device can be used for automatically adjusting cutting positions of the workpieces, so that the labor intensity of workers is alleviated, the working errors are reduced, and the product quality and the working efficiency are improved.

The invention discloses an intelligent household electrical appliance cloud platform, which comprises a client, a household electrical appliance terminal and a remote terminal; the client and the remote terminal are jointly connected with a communication station. A home local area network is used for connecting a client and a household appliance terminal, a mobile internet is used for connecting aremote terminal and the household appliance terminal, and a communication station capable of communicating is connected between the client and the remote terminal; all the data is stored by using a cloud storage pool, so that the intelligent household appliance cloud platform can learn according to a large amount of data; all the intelligent household appliances are completely displayed on the cloud platform by using a VR imaging function block technology so as to improve the client selection efficiency; a client feedback module, an application habit module, a system upgrading module and a regular maintenance module are arranged, so that intelligent household appliances are continuously upgraded and innovated according to a cloud platform; meanwhile, the industrial and commercial department comprehensively supervises the client, the remote terminal and the household appliances through the supervision section, and can confirm the real-time responsibility subject for the use of the intelligent equipment.

The invention discloses a twin device and a system for automobile magnetic suspension collision prevention and self-power generation which comprises a magnetic suspension collision prevention and self-power generation integrated device assembled in the front of the automobile and a magnetic suspension collision prevention and self-power generation integrated device assembled in the rear of the automobile. The two integrated devices together form the twin device and the system for automobile magnetic suspension collision prevention and self-power generation. The integrated twin device and system for automobile magnetic suspension collision prevention and self-power generation comprises an asymmetric twin device and a system for automobile superconducting magnetic suspension collision prevention and self-power generation, and a mirror image symmetric twin device and a system for automobile conventional magnetic suspension collision prevention and self-power generation. The superconducting magnetic suspension can generate strong magnetic suspension repulsive force to prevent two automobiles from colliding and adopts the combination of the conventional 8-shaped coil self-power generation and the vibration energy collection self-power generation, so that new electric energy can be supplied to the device and the system.

The invention discloses an automobile charging pile control system based on the Internet of Things and big data, belongs to the field of the Internet of Things, and aims to overcome the defects of themanual management mode of an existing charging pile and perform intelligent management to save human resources. According to the system provided by the technical schemes, the system comprises a charging pile; a power supply module for converting solar energy into electric energy is arranged in the charging pile; a billing system is connected between a charging gun head and a storage module; the billing system comprises a card slot and a banknote notch which are located on the surface of the charging pile; a grating module for identifying the authenticity and face value of banknotes is arranged in the banknote notch; and a reading module is connected with a signal module in remote communication connection with a server and a GPS module for positioning. Compared with the prior art adoptingnetwork access-base billing, the system of the invention adopts the Internet of Things technology to sort and send the position information and use information of the charging pile, can improve management efficiency and intelligent management level and has the advantages of reliable operation, convenience in use and high management efficiency.

The invention relates to a three-stage control system and method for a wide-range bidirectional DCDC electronic load, and is used for solving the technical problems of high test cost, low test precision and difficulty in debugging existing in a method for combining a plurality of power supply loads in a traditional power supply test. The system comprises an input stage circuit, an intermediate stage circuit unit, an output stage circuit, a first control system for controlling the input stage circuit, a second control system for controlling the intermediate stage circuit unit and a third control system for controlling the output stage circuit, the output end of the third control system is connected with the first control system. According to the method, an input-stage circuit adopts a voltage outer loop control and current inner loop control mode, an intermediate-stage circuit adopts a fixed-frequency and fixed-duty-ratio open-loop control mode, and an output-stage circuit adopts a constant-current, constant-voltage, constant-resistance and constant-power outer loop control and inductive current inner loop control mode; the input-stage circuit and the output-stage circuit are synchronously controlled, energy of the intermediate-stage circuit is automatically distributed, and bidirectional control is realized.

The invention belongs to the hydraulic technology, relating to improvement on a liquid control valve. The liquid control valve comprises a shell, a valve core (7) and a spring (6), and is characterized in that a reversing mechanism consisting of a reversing component (11), a sliding cutting sleeve (12) and a reversing spring (13) is arranged in a control cavity (1d); the sliding cutting sleeve (12) is positioned in an inner hole of a first annular lug boss (1a), the reversing spring (13) is positioned in an inner cavity of the sliding cutting sleeve (12), the reversing component (11) is arranged in the control cavity (1d) and an installing hole of the reversing component orthogonal to the control cavity (1d], the end of a right reversing arm of a reversing fork (15) is inserted in a circular cone groove at the centre of a left end surface of the sliding cutting sleeve (12), and the end of a left reversing arm of the reversing fork (15) is inserted in the circular cone groove at the centre of an internal end surface of a left end cover (2); and a second control oil nozzle (17) is coaxially communicated with the installing hole of the reversing component. The invention realizes two-path control of the liquid control valve, satisfies the requirement of an oil path for carrying out two-path control on the liquid control valve, and reduces complexity degree, volume and cost of the system.

The invention discloses a Bluetooth telephone system. The Bluetooth telephone system comprises a Bluetooth telephone computer end and a Bluetooth telephone phone end, wherein the Bluetooth telephone computer end and the Bluetooth telephone phone end are in wireless connection through Bluetooth. The Bluetooth telephone system not only has all functions of a common caller identification telephone set after being connected with the outside line of the telephone, but also has a one-key quick dialing function, can be connected with a mobile phone or a computer to realize voice talkback and information prompt with instant messaging software, and can realize bidirectional control and signaling interaction.

The invention relates to an electric appliance intelligent controller for image recognition, which is characterized in that an image pickup component, an image recognition processing unit and a communication module are integrated and installed in the intelligent controller; the intelligent controller exchanges data with a client through the communication module; the camera module comprises a camera which surrounds the running state control panel of the photographing household appliance by 360 degrees, and the camera module exchanges data with the communication module; the camera performs imagetransmission interaction with the image recognition processing unit, and the image recognition processing unit recognizes the image of the photographed home appliance running state control panel, andsends the recognition result to the client through the communication module. The invention provides the electric appliance intelligent controller for image recognition, which judges the running states of the household appliance through the image recognition, and controls the household appliances according to the running states.

The invention provides an active bidirectional microfluidic structure and an application method thereof. The active bidirectional microfluidic structure comprises a main body frame, a power mechanism, an adjusting structure and a control mechanism; the main body frame comprises a base plate, a power mechanism positioning frame and an adjusting structure positioning frame; the base plate is a first L-shaped vertical plate; a first rectangular through hole is formed in the substrate; the power mechanism positioning frame comprises a vertical partition plate, a first square fixing plate and a second square fixing plate. The vertical partition plate is arranged on the front side face of the base plate and located in the middle of the first L-shaped vertical plate, and a first square fixing plate is arranged at the top end of the vertical partition plate. A first round through hole is formed in the first square fixing plate, and two second square fixing plates are arranged on the vertical partition plate. The structure is small in occupied space, simple in structure, good in flow speed control effect, better in liquid mixing effect, low in cleaning difficulty, low in pollution probability and low in material consumption.

The invention relates to a construction method of a large-cantilever inclined-web wide-width box girder. The construction method comprises the following steps: 1) carrying out construction preparation; 2) laying a construction platform; 3) constructing a poured section of the box girder; 4) erecting an outer mold of the box girder; 5) arranging inhaul cable penetrating pipes; 6) arranging reserved holes; 7) erecting an inner mold of the box girder; and 8) tensioning and cutting the box girder inhaul cable. The method has the beneficial effects that the supporting stand columns are embedded into the stand column connecting grooves in the upper surfaces of the column bottom supporting piers and connected with the column bottom sealing bodies through the bottom plate anchor bolts, and the connecting strength of joints can be improved while the construction efficiency is improved; meanwhile, the upward-protruding door opening top cross beams, the rigid supporting nets and the flexible waterproof cloth are arranged at the top ends of the supporting stand columns opposite in the mirror image, the flexible waterproof cloth communicates with the inner drainage ditch, the pressure borne by the supporting stand columns can be reduced, and the pollutant intercepting effect of the construction platform can be improved.