51 results about "Control mode" patented technology

A disk drive is disclosed having hybrid spindle speed control. The disk drive includes a disk having a plurality of servo wedges, and a spindle motor for rotating the disk at an operating speed. The spindle motor generates a back electromotive force (BEMF) voltage. In operation, the disk rotation is maintained at the operating speed during a track following operation by updating, in a wedge spindle speed control mode, the spindle control current in response to a wedge speed error. Before executing a high-speed seek, the disk drive is switched to a BEMF spindle speed control mode, and the disk rotation is maintained at the operating speed during the high speed seek by updating the spindle control current in response to a BEMF speed error signal generated based on the BEMF voltage. During a seek-settle time, the disk drive is switched back to the wedge spindle speed control mode.

The invention provides a control method of a flyback converter. The control method is a control method in a mixed control mode; in other words, the flyback converter works in a non-complementation state under light loads, the clamp switch pipe on time is shortened through down conversion, and light load losses are effectively reduced through down conversion; flyback converter works in a fixed-frequency drive complementation state under heavy loads, and the clamp switch pipe on time is prolonged. Compared with the prior art, the control method has the advantages that the voltage stress of a main switch pipe and a clamp capacitor can be effectively reduced, the main switch pipe off losses can be reduced, the clamp circuit current change slope is decreased, the EMI interference is reduced, the secondary current change slope is decreased, and the longer detection reaction time is provided for synchronous rectification. Meanwhile, the working area of a magnetic core in the third quadrant is enlarged, the maximum flux density is reduced, and the size of the magnetic core is reduced.

The invention discloses a flexible high-voltage DC line protection method with current correlation. Through sampling current of DC-side shunt capacitor branches and a DC line entry, Pearson correlation coefficients of current of capacitor branches at two sides of the DC system and current at the DC line entry are calculated respectively, calculated correlation coefficients at two sides are finally compared, and thus, DC line fault discrimination is realized. The protection method is simple in operation, the needed sampling frequency is low, the method is not influenced by factors such as data synchronization, a fault type, a fault position, noise interference and a control mode, inner and outer faults in the DC line area can be accurately recognized, and a fault line is protected. The protection method plays an important role in safety operation of the flexible high-voltage DC transmission system.

The disclosed seat belt retractor and seat belt apparatus may be used to provide a technology effective for reducing the risk of making a vehicle occupant uncomfortable with regard to the seat belt winding action. A seat belt retractor and seat belt apparatus may comprise an electric motor, a spool capable of winding and unwinding a seat belt for occupant restraint, and a controller configured to perform a control mode in which the electric motor is controlled to rotate in a belt winding direction based on the status of a wearing of the seat belt on a vehicle occupant and the status of a vehicle door corresponding to the seat belt.

The invention discloses a camera control method for mobile terminals. The camera control method for the mobile terminals comprises the following steps: a. a first mobile terminal and a second mobile terminal which are respectively provided with a near-field communication module are started, b. the first mobile terminal and the second mobile terminal are matched and connected with each other in a near-field communication mode, the first mobile terminal goes into a controlling mode, the second mobile terminal goes into a controlled mode, c. the first terminal starts a camera interface, receives operation instructions input by a user and sends the operation instructions to the second mobile terminal in a wireless communication mode through the near-field communication modules, and the second mobile terminal starts the camera interface and a camera and carries out corresponding actions according to the received operation instructions. According to the camera control method for the mobile terminals, one mobile terminal controls the other mobile terminal, then the operation of taking pictures is achieved, the purpose of co-shooting is achieved, and the quality of co-shooting is guaranteed.

The invention provides a control system terminal and an interaction method therefor. The control system terminal comprises a display screen comprising one enabling area and a plurality of disabling areas, wherein each disabling area possesses a corresponding icon which is relative to a control mode; the icon can be dragged from a disabling area to the enabling area; and when the icon is dragged to the enabling area, the icon that previously occupies the enabling area automatically returns to a corresponding disabling area; a controller is coupled with the display screen; and when the icon is dragged to the enabling area, the controller disables a control mode relative to the icon that previously occupies the enabling area and enables a control mode relative to the dragged icon.

The invention belongs to the technical field of air conditioners, and specifically provides a control method of an air conditioner and the air conditioner. The method aims to solve the problem that anair speed control method of the air conditioner is poor in user experience. The control method of the air conditioner comprises the following steps that a surface temperature of a human body and an indoor environment temperature are acquired, the surface temperature of the human body is compared with the indoor environment temperature, and an air speed of an air supply fan of the air conditioneris selectively adjusted based on a comparison result. Through the control mode, the control method of the air conditioner can selectively adjust the air speed of the air supply fan according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can always be in a comfortable environment, the situation of human discomfort causedby the too high or too low air speed is avoided, and the use experience of the user is improved.

The invention relates to a sensorless low-speed starting redundancy fault-tolerant control method of a switched reluctance motor and an application thereof, which realize accurate initial positioningand continuous estimation of an ultra-low-speed position, as well as redundancy and fault-tolerant control during low-speed operation. At that same time, the detection redundancy of winding current information needed by sensorless control is further improved by adopting a switched reluctance motor winding combination mode and a dual-channel power control mode, so that the redundancy and fault tolerance of the sensorless position estimation are improved, and the reliability of a switched reluctance motor driving system is enhanced. The method is suitable for special application occasions such as aerospace starter generators, electric fuel pumps, new energy vehicle drive motors, high-end equipment spindle motors, electric tool drive motors and so on, which require extremely high reliability,severe working environments and frequent large torque start and stop.

The invention relates to a control system, in particular to a building water overflow automatic alarm control system, which aims to solve the problem that a scattered control manner adopted for preventing water overflow of buildings is not suitable for the existing buildings, and centralized control is needed. When tap water or water in a heater accidentally overflows, and overflow sensors are submerged, detection signals are provided for a building water overflow automatic alarm controller by the overflow sensors, the building water overflow automatic alarm controller carries out detection judgment on the signals of the overflow sensors, when the signals meet the action condition of the building overflow automatic alarm controller, a relay control circuit is controlled to act, an alarm circuit is enabled to send out an alarm signal, and an electromagnet valve or an electrically operated valve is driven to act to close an overflow water source. The building water overflow automatic alarm controller comprises one or more hysteresis voltage comparison circuits, and the hysteresis voltage comparison circuits take LM339 voltage comparator integrated circuits as core elements for forming comparison circuits with a hysteresis starting function and a hysteresis closing function. The building water overflow automatic alarm control system is used for monitoring water overflow in the buildings.

The invention discloses a remote-controlled intelligent socket comprising a signal acquisition module, a signal processing module, a single-chip microcomputer control module, a relay control module, a power module and a remote control terminal module. Data is processed by the signal acquisition and processing modules. On-off of household appliances is remotely controlled through the remote control terminal module according to a received signal. The single-chip microcomputer control module employs an STC12C5A60S2 single-chip microcomputer as a main control chip. Separate control is adopted, all socket jacks can be independently controlled and are not correlated, and control is made more convenient; the socket is of wide adaptability because of the adoption of the latest ZigBee technology; the socket has the characteristics of powerful functions, stable operation, low cost and low energy consumption, and has automatic and manual control modes; and the socket has the functions of timed powering off and real-time state display, management of electrical appliances is greatly facilitated, and the design can achieve good user experience.

The invention discloses a control method, device and system of an electrical appliance and an air conditioner. The method comprises the steps that biological characteristic information of a target user is acquired; the biological characteristic information is matched with prestored biological characteristic information to be matched in a database; if matching succeeds, target configuration information corresponding to the biological characteristic information is obtained, wherein the target configuration information comprises control information for controlling electrical appliance equipment and is configuration information prestored in the database and corresponding to the target user; the electrical appliance equipment is controlled by utilizing the target configuration information. By adopting the control method, device and system of the electrical appliance and the air conditioner, the problem that different control modes cannot be customized for different users in the prior art and accordingly the experience degrees of the users are affected is solved.

The invention relates to a digital tuner solving the problem that the power levels of television signals are lowered because of a great number of combined two-order and three-order beat interference signals generated by dense channel signals of the prior high-level cable digital televisions. The digital tuner comprises an antenna input device, a radio-frequency AGC low-noise wideband pre-amplifier, a power divider, a frequency selective network, a tracking filter, a frequency mixer, a local oscillator, an intermediate-frequency filter, a circular signal output device, a rheostatic diode, an alternating current gain controller and a delay controller, wherein the alternating current gain controller is connected in series with the frequency selective network and the tracking filter and also connected in parallel with the delay controller and a high-frequency AGC voltage. The invention adopts a step-by-step AGC control mode to control intermediate-frequency AGC, high-level AGC and radio-frequency AGC step by step so that the functions that a small signal receives a low noise factor and a large signal has a large receiving dynamic range is achieved, and the acceptable maximum cable television signal level can not be lowered.

The invention relates to a method for filling receptacles, in particular with a pharmaceutical agent, comprising the following steps: carrying out the pulsed filling in the production mode, with the following, repeated cycle sequence: standstill for the simultaneous filling of f containers, and preference for moving the containers by means of a control mode with the following repetitive clock sequence: standstill for the simultaneous filling of f containers and weighing At least one empty container on the tare scale and / or a filled container on the trough, preference for moving the containers about t of an empty container on the tare scale and / or of a filled container on the gross container, without filling, intermediate advance N of the containers by t, the intermediate stop and the intermediate privilege being performed per cycle (f-1) times.

The invention provides an LED (Light-Emitting Diode) unit and a constant-flow unit voltage-stabilizing LED control circuit. The constant-flow unit voltage-stabilizing LED control circuit comprises a rectifier bridge, at least one LED control unit series branch and at least one current limiting resistor, wherein the rectifier bridge is connected with a power supply, and the LED control unit series branch is connected with the rectifier bridge. The constant-flow unit voltage-stabilizing LED control circuit utilizes the forward voltage drop characteristic of a voltage stabilizing tube and a diode, the voltage-stabilizing role of the full unit is played. The control mode is cheaper and more practical, and the efficiency is higher. In addition, when the voltage of the power supply is lower than the normal power supply voltage, as the full circuit works in a working state lower than a voltage stabilizing value, the lower voltage is uniformly shared by the voltage-stabilizing circuits of the full unit, the brightness of all LEDs is uniformly reduced, and therefore the continuous dimming function can be realized in a certain voltage range. Practices prove that the full circuit can reliably work in the voltage range of AC (Alternating Current)/DC (Direct Current) 120V to 270 V.

The invention belongs to the technical field of injectors, particularly to a natural gas and diesel injector of a novel control mode. The natural gas and diesel injector of the novel control mode comprises an injector shell body, a natural gas magnetic valve, a diesel magnetic valve and a valve body. The injector shell body is provided with the natural gas magnetic valve, the diesel magnetic valveand the valve body. Joint of valve body and injector shell body is provided with a middle body. The valve body is internally provided with a needle valve and a gas valve. The injector shell body is provided with a diesel high pressure oil inlet, a natural gas high pressure inlet and a diesel return channel. The natural gas high pressure inlet is communicated with a ring belt through a connectingair passage and an air passage in the shell body pass through a middle body air passage and a valve body air passage on the middle body. The natural gas and diesel injector of the novel control mode has the beneficial effects that control flexibility is wide, independent control and independent injection of double fuel of diesel and the natural gas can be achieved, lengths of the needle valve andthe gas valve are reduced in design and is convenient to machine , meanwhile a coupled structure and synchronous movement which a gas valve guide sleeve drives the gas valve are introduced to avoid complicated technology and improve production consistency and reliability of products, and cost is reduced.

An air spring in a modern automobile suspension system plays an important role in improving automobile ride performance and handling stability as well as protecting roads and cargos. In order to effectively adjust dynamic stiffness of the air spring, a main air chamber is connected with a sub air chamber, and throttle valves on the channels of the main air chamber and the sub air chamber are changed. A control signal for stiffness adjustment is acquired by a multipath sensor and sent to a computer for processing; and after the signal is processed, an action command is sent, and the stiffness of the air spring is adjusted. But the response time lag of the control mode is slightly larger, and the cost is high. The invention aims at solving the difficult problems so as to develop a novel self-adaptive air spring capable of adjusting the dynamic stiffness in a pressure difference manner. According to the air spring, the throttling pressure difference on the channels of the main air chamber and the sub air chamber is controlled by directly using a pressure signal in an air bag, so that the effect of continuously adjusting stiffness is achieved. The throttle valves are controlled through the reverse impact pressure difference of the main air chamber and the sub air chamber, so that the impact on an automobile body from a bump is weakened. The air spring provided by the invention has the advantages of simple structure, quick and reliable response, low cost and convenience for adjusting static stiffness.

A terminal photographing intelligence control method aiming at a user without an image photographing authority is disclosed. The method comprises the following steps that a sponsor terminal sends image photographing authority information carrying sponsor authentication information to a server; the server enters into an audience party terminal shooting management and control mode according to information without the image photographing authority; under the mode, an audience party needs to pass an audience party terminal login server and signs a terminal shooting management and control protocol; after the protocol is signed, under a camera software management and control authority possessing an audience party terminal, the server acquires camera software installed on the audience party terminal and monitors an operation state in real time; when the camera software is monitored to be in a using state, the server sends a camera software closing instruction to the audience party terminal; and when an authority of carrying out management and control on the camera software by the server exists in the audience party terminal, the audience party terminal makes the camera software be closed according to the camera software closing instruction.

An abalone mushroom cultivation technology comprises the steps of 1, mechanical mixing and bagging; 2, separate and centralized sterilization; 3, three-level purification and inoculation; 4, intelligent mushroom house cultivation; 5, abalone mushroom house fruiting stage fertility management. The optimal formula and fruiting management control mode suitable for abalone mushroom cultivation are adopted, a foundation is laid for stable and high yield, the biological efficiency of finished mushroom is 55% or above, mushroom is round and has a good form, selling price is effectively increased by 20% or above, sustained and efficient market supply is ensured, and comprehensive benefits are increased by 25% or above.

The invention discloses a feeding traveling crane system, which is used for feeding operation of ladder type or cascade type cage culture equipment. The feeding traveling crane system comprises a feeding traveling crane, a control device, a remote control terminal, and a security device. The feeding traveling crane is arranged on a travelling guide rail of the cage culture equipment. The control device is electrically connected to the feeding traveling crane and is connected to the remote control terminal through communication. The security device is installed on the cage culture equipment andis electrically connected to the control device. Through the cooperation among the feeding traveling crane, the control device, the remote control terminal, and the security device, switching among multiple control modes and safety control are realized. The control mode can be selected according to the feeding scene, the efficiency of feeding operation is largely improved; and the problem that the efficiency of feeding operation of a conventional feeding traveling crane is not high is solved. By using the feeding traveling crane system, through the remote control terminal and security device,the feeding traveling crane is safely and reliably controlled to carry out predetermined feeding operation, the feeding travelling crane does not need to be monitored in real time, and the feeding operation efficiency is high.

The invention relates to an upgradable light-emitting diode (LED) lamp driving module. The driving module comprises an input end and an output end, wherein the input end is connected with an external power supply for supplying power to the driving module, the output end is connected with an LED lamp for driving and controlling the LED lamp, the driving module also comprises a control module, the control module is used for realizing intelligent control or non-intelligent control and comprises an intelligent module and a circuit switching module, and the circuit switching module is connected with the driving module; when the intelligent module is connected with the circuit switching module, the LED lamp is switched into an intelligent control mode; and when the intelligent module is disconnected with the circuit switching module, the LED lamp is switched into a non-intelligent control mode. By arranging the control module, the intelligent control mode or the non-intelligent control mode of the lamp can be realized, and thus, different control modes can be selected for acquiring different control functions according to different demands of clients.

The invention provides a switch cabinet alternating current and direct current voltage regulation test vehicle capable of being remotely controlled, which is characterized by comprising a voltage output circuit, a voltage output control circuit and a remote control circuit, wherein the voltage output circuit comprises a three-phase voltage regulator, wherein the input end of the three-phase voltage regulator is connected with a three-phase four-wire alternating current power supply after passing through a master air switch; the three-phase voltage regulator is provided with two output ends; one of the two output ends is a three-phase alternating current voltage regulating output end, and the other one is connected with a three-phase bridge rectifying and capacitor filtering loop and outputs adjustable direct current voltage, the voltage output control circuit is connected with the voltage output circuit through a relay; and the remote control circuit and the voltage output control circuit carry out control mode switching through a change-over switch. The test vehicle can save the time of an inspector, reduce the walking distance of the inspector when carrying out power transmissionat the test vehicle, debugging in front of the switch cabinet, and finally returning to the test vehicle for power-off, and the timely power-off of sudden conditions in the test process can be ensured.