392results about How to "Control work" patented technology

The invention relates to a desktop 3D-printing forming device comprising a base plate, a machine frame and connection blocks. The machine frame is a bottomless rectangular frame and is fixed on the base plate; vertex angles of the machine frame are provided with the connection blocks, adjacent connection blocks are connected with Y-direction guide rails, and transmission systems are arranged above the connection blocks and between adjacent connection blocks; the end of one transmission system at one side is connected to one end of a step motor output shaft, and the other end of the step motor output shaft is connected to the end of the other transmission system at the other side; the Y-direction guide rails which are on two opposite sides are provided with slide blocks, and the top end of the Y-direction guide rails which are on two opposite sides are connected with the transmission systems; X-direction guide rails are arranged between the slide blocks which are two opposite sides, and printing systems are arranged between the X-direction guide rails; the printing systems are connected with wire feeders; the base plate is vertically provided with a linear motor, and output shaft is a Z-direction guide rail; the Z-direction guide rail is connected with one end of an installing beam; and a heating work plate is arranged on the top of another end of the installing beam, and is under the printing systems. Moulding precision is high, processing speed is fast, technology is simple, cost is low, and the desktop 3D-printing forming device can be widely applied in household and the field of teaching.

The invention discloses an energy storageenergy management system and method based on distributive control mode. The system includes an energy management module, a plurality of distributive energy storage sub-systems and distributive energy management sub-modules which correspond to each distributive energy-storage sub-system. Each distributive energy storage sub-system includes an energy storage battery, an energy storage monitoring unit BMS and an energy storage converter PCS. The energy storage battery is connected to a power distribution network system through the energy storage converter PCS. The energy storage monitoring unit BMS is in electrical connection to the energy storage battery. The distributive energy management sub-modules are in separate connection to the energy storage monitoring unit BMS, the energy storage converter PCS, and the energy management module through a communication network. According to the invention, the system herein can control respective energy storage sub-system to work, and addresses the difficulty of real-time control, heavy data, and complex strategies of energy storage power station. The system herein can achieve high efficient maintenance and operation.

The invention relates to a control system and a method of home video equipment. A control device sends and receives information of executing recording and deleting programs of a set-top box, and inquires information of a state information control command of the set-top box; registration information of a mobile control part of the control device and the set-top box is stored; the set-top box and the control device are connected so as to receive and execute the information of recording and deleting program instruction, and inquire the state information control command of the set-top box; the set-top box sends the information of executing recording and deleting programs to the control device so as to inquire result information of the state information control command of the set-top box; the set-top box outputs video and audio signals, a television signal source and the set-top box are connected to send video signals to the set-top box; the video device and the set-top box are connected so as to receive the video and audio signals output by the set-top box and display and play the video and audio signals; and a remote controller is connected with the set-top box so as to send infraredor wireless signals for controlling the working state of the set-top box.

The invention discloses a heat source machine formed by connecting gas water heaters in parallel and a control method. The heat source machine comprises a main water inlet pipe, a hot water convergence pipe, a main gas inlet pipe, gas water heaters and a system controller. The gas water heaters are connected in parallel through the main water inlet pipe, the hot water convergence pipe and the main gas inlet pipe. Each gas water heater is internally provided with a water flow collecting sensor, a water inlet temperature detector and a water outlet temperature detector and is connected with the system controller through a communication bus and a signal converter arranged on the communication bus. A water inlet electromagnetic valve is arranged on a cold water pipe of each gas water heater and connected with the system controller through a water inlet switch control line. During working, data of each gas water heater are transmitted to the system controller, the number of the gas water heaters needing to work is worked out, the system structure is simple, installation is convenient, the water temperature is constant, no constant temperature water tank is needed, and safety is high.

The invention relates to a method and a device for controlling work of an air purifier. The method and the device are used for realizing intelligent control on work of the air purifier, meeting needs on current moment and current environment, guaranteeing needs, on air quality, of a user, saving power consumption and improving using experience of the user. The method includes acquiring the current moment; determining at least one running mode suitable for the air purifier at the current moment; acquiring information of the current environment in which the air purifier is positioned; determining a final running mode from the running modes according to the information of the current environment. The technical scheme takes important influence, on setting the running modes of the air purifier, of two factors including the current moment and the current environment into consideration, intelligent control on work of the air purifier is realized, the needs on the current moment and the current environment are met, the needs, on the air quality, of the user are guaranteed, the power consumption is saved, and the using experience of the user is improved.

The invention discloses a protection method for automatically regulating a volume of a loudspeaker according to temperature raising of a voice coil. The protection method comprises the following stepsof: S1: acquiring a current value and a voltage value of an audio of the loudspeaker, and carrying out Fourier transform on the current value and the voltage value; S2: according to a frequency valueafter Fourier transform, obtaining an impedance curve of the voice coil; S3: reading the impedance curve, searching a nominal impedance RAC of the loudspeaker on the impedance curve, and according toa voice coil power and tolerance table corresponding to a material of the voice coil and according to a formula that RDC=RAC-XL(f1), obtaining a direct current resistance RDC, wherein the XL(f1) represents a voice coil inductance inductive impedance of of the loudspeaker under a frequency f1 corresponding to the nominal impedance; S4: carrying out comparison on a resistance value RDC of the acquired direct current resistance and a preset standard resistance value to obtain a resistance variation percentage; and S5: according to the resistance variation percentage and a metal temperature coefficient, calculating the temperature raising, and when the temperature raising exceeds a preset value, regulating input power of the loudspeaker by an attenuation signal. The protection method disclosed by the invention is accurate to monitor, wide in applicability and high in protection.

The invention discloses a pneumatic and automatic feeder for label laser marking. The electric control and pneumatic control are adopted together. A label is placed into a feed hopper, the feed hopper is in a U-type open type and is composed of a fixed locating board and a movable locating board (20), the fixed locating board is fixed, the movable locating board (20) is installed on a movable locating installation board (21), two guide rods are adopted, two ball screws are used in cooperation and are connected through a chain, the ball screws can rotate synchronously, the movable locating board (20) keeps parallel with the fixed locating board, a hopper bottom board (2) can vertically move along a shaft supporting rail under the pushing of a worm gear and worm lift (27), a whole sliding workbench can move back and forth along another horizontal shaft supporting rail, and a long-stroke air cylinder (13) is controlled by a piston rod to vertically move. The electric control and the pneumatic control are matched, the working steps of feeding, marking and the like are controlled effectively, the stability when the system operates is ensured, and working efficiency is improved.

The invention discloses a household appliance remote control device based on a mobile phone Bluetooth technology. The household appliance remote control device comprises a control device arranged in a household appliance, a Bluetooth receiving and sending module, a control module and an output module connected with the household appliance are arranged in the control device, and a control software storage module is also arranged in the control device. The control module sends control software in the software storage module to an intelligent mobile phone through the Bluetooth receiving and sending module, the control software is installed in the intelligent mobile phone, control signals can be transmitted into the control module through the Bluetooth receiving and sending module through the operation of the control software, and the control module sends the control signals to the household appliance through the output module to control the turning-on and turning-off and functional mode of the household appliance. Therefore, control over various household appliances is achieved through the mobile phone, resources are effectively integrated, and using is convenient and simple. In addition, the control module can also send the control software to intelligent electronic products such as a tablet computer with the Bluetooth function through the Bluetooth receiving and sending module, and therefore the control over the various household appliances is achieved through the tablet computer.

The invention discloses an electric heater and a control device thereof. The electric heater includes: a heating circuit having positive or negative resistance temperature coefficient characteristics; a control device further comprising a current detection circuit and a heating control circuit: the current The detection circuit is used to detect the current current value of the heating circuit when the heating circuit is working; the heating control circuit is used to control the heating circuit to work according to the current current value of the heating circuit. Thereby, the electric heater of the present invention can realize heating control by utilizing its own resistance characteristics, so as to ensure the normal operation of the electric heater.

The invention discloses a failure detecting device of an electric pressure cooker. The device comprises a pressure sensor and a controller, wherein the pressure sensor is used for detecting pressure value in the electric pressure cooker; the controller is connected with the pressure sensor. When the pressure value is smaller than first preset value or greater than second preset value, the controller judges that the pressure sensor fails, wherein the second preset value is greater than the first preset value. The failure detecting device of the electric pressure cooker can detect whether the pressure sensor fails or not and prompts a user to take corresponding safety measures when the pressure sensor fails, so that the using safety of a product is improved, and the safety of a user is guaranteed in use. The invention also discloses a failure detecting method of the electric pressure cooker and the electric pressure cooker.

The invention discloses an electric heater and a control device thereof. The electric heater comprises a heating circuit, which is provided with positive or negative resistance temperature coefficient characteristics; and the control device, which further comprises a resistance detection circuit and a heating control circuit, wherein the resistance detection circuit is used for detecting the current resistance value of the heating circuit when the heating circuit works, and the heating control circuit is used for controlling the heating circuit to work according to the current resistance value of the heating circuit. Therefore, the electric heater disclosed by the invention can realize heating control by using the resistance characteristics of the electric heater, so as to ensure that the electric heater can work normally.

This invention discloses one time lock phase loop and its control method, wherein, the time phase loop comprises the following parts: phase test device, loop filter, D/A converter, transistor resonance and frequency division device phase negative feedback loop and the processor connected to the loop and the front filter set between the test and loop filter, wherein, the said filter is connected to the processor to receive and store several phase difference from the pre-set update circle and to filter out phase difference from the shaken or floating signal of reference time to improve the clock phase loop control accuracy.

The invention discloses an overvoltage and undervoltage detection circuit applied to a solar energy storage power supply. The first comparator performs overvoltage detection on the power supply voltage, and the second comparator performs undervoltage detection on the power supply voltage. The output end of the logic AND gate is connected to the base of the triode, so that the triode can be turned on only when the logic AND gate outputs a high level. And the logic AND gate can output high level only when the voltage is normal, that is, both the first comparator and the second comparator output high level 1. Thus, in the present invention, through the first comparator, the second comparator and the logical AND gate, the triode is turned on when the power supply voltage is normal; and the triode is turned off when the power supply voltage is overvoltage or undervoltage. However, through the on-off of the triode, the power supply output of the power input terminal can be controlled, and the work of the light-emitting diode can be controlled.

The invention relates to a control device and a control method used for controlling an air door heater according to humidity. The control device comprises an air door heater (1) arranged on an air door, a humidity sensor (2) and a controller (3), wherein the humidity sensor (2) detects the humidity of the air door, converts a detection result into an electrical signal and outputs the electrical signal to the controller (3); and the controller (3) outputs the signal to control the operation of the air door heater (1). The control method comprises the steps that the humidity sensor (2) detects the humidity of the air door, converts the detection result into the electrical signal and outputs the electrical signal to the controller (3), and the controller (3) outputs the signal to control the heating time of the heater (1), wherein the heating time and the humidity are directly proportional. The control device and the control method provided by the invention consider the practical icing condition of the air door, can efficiently control the operation of the air door heater in real time through the control of the real-time humidity condition of the air door, save energy, and are low-carbon and environment-friendly.

The invention relates to the technical field of seabed abyss organism sampling, in particular to a seabed abyss macro organism trapping and gastight sampling device. The device comprises a sampling cylinder, an energy accumulator and a ball valve; the sampling cylinder is placed in the support seat; the inlet end is provided with an opening and is connected with the ball valve through a flange; the outlet end is opened and is connected with the energy accumulator through a capillary; the energy accumulator is fixed arranged on an energy accumulator fixing frame, and the accumulator accumulatoris provided with an energy accumulator inflation valve; the inlet end of the sampling cylinder is provided with a correlation-type infrared photoelectric organism detector; the ball valve comprises avalve body and a valve rod, a part of the valve body is placed in a support seat, and the valve body is provided with a hole having a same size as the opening of the inlet end of the sampling cylinder; the lower end of the valve rod is connected with a keyway at the top of the valve body, and the upper end of the valve rod is connected with a keyway of a turbine; the turbine is meshed with a worm, and the end of the worm is connected with a motor shaft. The device provided by the invention can be used to complete gastight sampling, and the pressure of obtained biological samples is substantially maintained to be an in-situ pressure, so that the survival rate of organisms is greatly improved.

The invention discloses an intelligent information management device, method and system. The intelligent information management device comprises a wired interface module, which comprises a plurality of wired communication interfaces and wireless communication interfaces. The main control module is used for receiving the control instruction of the host computer and converting the control instruction into a corresponding control signal. Or converting the parameter acquisition signal, the data acquisition signal output by the front-end equipment and the data acquisition signal output by the external communication equipment into a corresponding data signal, and outputting the data signal to the storage module; The data processing module is used for outputting the data signal stored in the storage component module to the storage component module after data processing when the control signal is received, so as to be obtained by the main control module and outputted through the correspondingwired interface and/or wireless interface. The invention solves the problem that only a single communication interface can be adopted between the intelligent signal management device and the front-endequipment, the upper computer and the terminal equipment, and the system adaptability is poor.

The invention discloses a broadband angle selection optical fiber and a preparation method thereof. The filter system comprises binary-phase diffraction gratings which achieves symmetric diffraction order distribution and volume Bragg gratings which correspond to the diffraction orders of the binary-phase diffraction gratings. The diffraction light orders of the binary-phase diffraction gratings are sequentially increased from the center to the two sides, the volume Bragg gratings are sequentially placed from the center to the two sides according to a grating period from low to high, and the central axis of the volume Bragg gratings and the central axis of the binary-phase diffraction gratings are symmetrically distributed. Rectangular grid bars are prepared on a grating substrate according to the duty ratio, the period and the grating layer thickness parameter of the gratings, and the binary-phase diffraction gratings are obtained. Gratings are prepared on silicate base photoinduced thermosensitive refractive index glass according to the number of the volume Bragg gratings and the corresponding period and thickness parameters. The broadband angle selection optical fiber has the broadband light input filtering effect, and is simple in structure and good in filtering consistency.

The invention relates to an apparatus for using multi-light source to achieve optical fiber gyrostat active anti-spreading reinforce which is characterized in that it connects a large power semiconductor laser LD on the couple input end of the optical fiber gyrostat light path to process the strong light needed by the fiber optic discolor; the front output end of the optical fiber gyrostat is connected with the input end of the collaborating control circuit to monitor the front output signal and quote the running condition of the gyrostat; the output ends of the collaborating control circuit are separately connected with the optical fiber gyrostat SLD light source and the large power semiconductor laser LD to periodically open and close the large power semiconductor laser LD; the output end of the collaborating control circuit is connected with the signal processing circuit to control the open and close of the optical fiber gyroscope demodulating system to achieve the active prevention of the gyroscope.

The invention provides a reliable joint control-driven component and a control method thereof. The reliable joint control-driven component is composed of a redundancy driving device and a control device, wherein the redundancy driving device comprises a drive motor A, a drive motor B, a gear train, a motor frame, a shell and a planetary gearbox; and the control device is composed of a casing, a central control unit, a power module, a wire connecting terminal, a motor driver and a power adapter. In the reliable joint control-driven component, a gear train structure with a torque limiter is integrated with the planetary gearbox, and a mode of increasing a redundancy driver is used; therefore, the component of the invention is a novel joint redundancy driving component which has a backup function and the advantages of low power consumption, high torque, high accuracy, good mechanical property, low vibration and the like.

The invention discloses a slag powder-doped composition for preparing white facing as-cast finish concrete. The composition is characterized by consisting of the following components in parts by weight: 180-260 parts of cement, 85-110 parts of water, 330-390 parts of sand, 500-580 parts of stone, 2.0-4.0 parts of additive, 1 part of titanium dioxide and 20-60 parts of slag powder. In the composition disclosed by the invention, the proportion of the components is more scientific and reasonable, and the working performance meets the requirements on concrete pumping and pouring; and moreover, the bleeding and separation are avoided, the shrinkage is low, and the formed concrete is dense and has strong texture. With the formula, the large-flow regime white as-cast finish concrete has the advantages of good fluidity, good workability, good water-retaining property, low slump loss, strong pumpability and the like in concrete construction; and the strength of the formed concrete can be guaranteed, the surface gloss is good, and the chromatic aberration meets the requirement on the quality of the facing as-cast finish concrete.

The invention relates to a controller for a refrigerant circulation blending machine room special machine, which comprises a singlechip module cured with control program, and a button module, a temperature detection module, a relay output module, a power supply module, a display module, a network communication interface module and a protection module that are matched with the singlechip module. The controller ensures the refrigerant circulation blending machine room special machine to run in an accurate working mode according to the indoor and outdoor temperature and the set temperature, gives full play to the unique energy-saving advantage of the refrigerant circulation blending machine room special machine on the premise of guaranteeing the normal temperature range of a machine room, and leads the effects of energy conservation and emission reduction to be maximized.

The invention provides an intelligent wind speed regulation range hood based on background modeling. A range hood body is provided with a vision imaging module, a processing module and a wind speed control module. The vision imaging module conducts continuous imaging on a target area and transmits video stream information of imaged pictures to the processing module. The processing module conductsprocessing to obtain smoke grade information and transmits the smoke grade information to the wind speed control module. The wind speed control module controls a wind speed regulator to regulate the wind speed according to the smoke grade information transmitted by the processing module. The vision imaging module is provided with a camera, an infrared supplement light and a relay. The processing module obtains the current smoke area of the target area and the corresponding concentration of the current smoke area through a background model frame difference method and then conducts smoke grade quantitative processing according to the smoke concentration to obtain the smoke grade information. The power of the intelligent wind speed regulation range hood based on background modeling can be automatically regulated, and the kitchen environment can be purified. On one hand, electric energy can be effectively saved; and on the other hand, manual operation can be reduced, and the user experience can be improved.