182 results about "Time switch" patented technology

The invention belongs to the technical field of heating equipment, and particularly relates to an omni-directional tower type heater which is used for displaying the current state, temperature setting and operation mode information of the heater through a man-machine interaction module; the sensor module comprises a temperature sensor, monitors the environment temperature in real time and feeds back the environment temperature to the system for intelligent adjustment; the motion sensor is used for detecting whether a person moves in a room so as to determine whether to turn on or turn off the warmer; the control module comprises a microcontroller and is responsible for processing sensor data, executing a user instruction and adjusting heating power; the communication module is convenient for a user to carry out remote control through a mobile phone APP or a smart home system; the intelligent adjusting module comprises a temperature control algorithm and is used for intelligently adjusting the heating power of the warmer according to the real-time temperature data; a user sets a timing switch, the system automatically controls the working state of the warmer according to the preset time, and the effects that man-machine interaction management is conducted on the warmer, and the warmer can be regulated, controlled and supervised in a palm mode in real time are achieved.

1. Name of the product of this design: Dynamic graphical user interface for intelligent lighting control for electronic devices. 2. Purpose of this design product: used for interactive operations and information display on electronic devices, allowing users to control the light changes of smart lamps. 3. The key design point of this design product lies in the graphical user interface. 4. The picture or photo that best illustrates the key points of the design: main view. 5. No design points, omit other views. 6.Purpose of graphical user interface: used to control smart lamps and display lighting status. 7. Other situations that require explanation refer to the following diagrams: The main view is the main control interface of the lamp, which mainly displays the list information of the device; select the floor lamp device in the device list in the main view interface to enter the color control interface of the floor lamp in Change State Figure 1. The upper area is the status effect and navigation area of the floor lamp, and the lower area controls the color and brightness of the lamp. Select the "Mode" button to enter the mode interface in Change State Figure 2, where you can select the lighting mode and adjust the brightness and change speed. Select the "Music" button to enter the external microphone rhythm control interface in Change State Figure 3, where you can select the rhythm mode and microphone sensitivity. Select the "Mobile Microphone" tab to enter the mobile microphone control interface in Change State Figure 4. Select the "Music" tab to enter the music control interface in Change State Figure 5, where you can choose to play music and make the floor lamp light up and dance with the rhythm of the music. Select the "Scene" button to enter the scene selection interface in Change State Figure 6. Slide the navigation and select the "Timer" button to enter the timer switch control interface in Change State Figure 7; select the return button in the upper left corner of any interface to return to the main control interface.

The invention belongs to the technical field of permanent magnet synchronous motor control, and particularly discloses a permanent magnet synchronous motor finite time switching active-disturbance-rejection rotating speed control method, which comprises the following steps: acquiring a reference rotating speed and an actual rotating speed of a permanent magnet synchronous motor; the absolute value of the error between the reference rotating speed and the actual rotating speed is calculated and compared with a preset first threshold value and a preset second threshold value, and the stage of the permanent magnet synchronous motor is judged; constructing a finite time cascade expansion state observer comprising a first-stage finite time ESO and a second-stage linear ESO to observe the state and lumped disturbance of the permanent magnet synchronous motor; and based on the stage of the permanent magnet synchronous motor, selecting a composite state of the observation value of the first-stage finite time ESO, the observation value of the second-stage linear ESO or the observation value of the first-stage observer and the observation value of the second-stage observer generated based on the Bezier curve to generate the rotating speed loop control law of the permanent magnet synchronous motor. According to the invention, the problems that the transient anti-interference capability is weak and the current performance is reduced due to the fact that transient control and steady-state control are not distinguished in the prior art are solved.

The invention discloses a switching system dynamic quantization control method and device based on event-triggered communication, and the method comprises the steps: building a continuous time switching linear system model for a switching system, and giving a system stability guarantee mechanism; designing a dynamic quantizer for the continuous time switching linear system model, giving a dynamic quantization parameter and a dynamic quantization updating strategy, and cooperatively designing an event triggering mechanism according to a state variable of the system and the dynamic quantization parameter; and designing a switching law according to an event triggering mechanism, and adjusting dynamic quantization parameters of the system to realize stable control of the system. On the premise of ensuring the system performance, the communication frequency and calculation burden of the system can be reduced, the resource utilization efficiency of the system can be improved, the method can be widely applied to the fields of network control systems, industrial automation systems and the like, and an effective solution is provided for solving the control problem of a complex system.

In accordance with an embodiment, a method for controlling a constant on-time switched mode power converter includes: generating a pulse signal having an on-time; during a soft-start phase of the power converter, successively increasing the on-time from an initial duration to a final duration, wherein the final duration is larger than the initial duration; sensing an output voltage of the power converter and generating a feedback signal proportional to the output voltage; adjusting a frequency of the pulse signal based on the feedback signal and a reference signal; and driving a power switch with the pulse signal to control the power switch and regulate the output voltage.

The utility model relates to the field of electricity, in particular to a socket technology. An intelligent socket with an intelligent power grid access function comprises a socket body connected with a mains supply interface, the socket body is provided with a shell and a panel, socket jacks are arranged on the panel, and the intelligent socket further comprises a power supply part connected to the mains supply interface. The timing switch system is provided with at least one timing opening time period; the timing switch system is provided with a control system and a switch element; the power supply part is electrically connected to the control system; the mains supply interface is connected to the socket jack through the switch element; the timing switch system is a timing switch system with a network control function, and the timing switch system is further provided with a manual input part for setting a timing opening time period. The socket controls the operation time of the electric equipment on the socket through the timing switch system, and the electric equipment is delayed to a preset power grid off-peak time period to operate, so that on one hand, the power utilization cost can be saved; the load of the power grid can be balanced, and stable operation of the power system is facilitated.

The utility model provides a circuit structure for controlling operation of a single-phase motor, which comprises an operation winding and a starting winding which form a stator coil in the single-phase motor, and further comprises a timer and a timing switch. The starting winding and the timing switch are connected in series and then connected in parallel with the timer and the operation winding between two ends of the AC power supply. Wherein the timer is in signal connection with the timing switch, and the timing switch is in a normally closed state; and after the preset time countdown of the timer is finished, the timer sends a turn-off signal to the timing switch, so that the timing switch is converted from a normally-closed state to an off state. According to the circuit structure for technically controlling the operation of the single-phase motor, the timer and the timing switch ensure that the starting winding is accurately disconnected within the preset time, the motor is prevented from being overheated, and the starting efficiency and durability are improved.

The invention discloses an enhanced transient stability improvement strategy and system for a grid-forming converter based on current amplitude limiting, and aims to effectively suppress a power angle instability phenomenon in a power grid fault or transient period and ensure that the converter has higher stability in a grid-connected process. The specific implementation comprises a dynamic dq-axis current amplitude limiting control strategy and a reference power control structure. Three-phase voltage and current of a grid-connected point of the converter are measured in real time, and a dq-axis current reference value and a power ring reference value are dynamically adjusted by combining a power angle and angular velocity deviation in an active power link, so that power angle instability during a transient period is accurately inhibited. According to the control strategy, the risks of overcurrent and system instability are effectively reduced, and particularly when a power grid breaks down or is in a normal condition, quick response and stable output of the system are ensured by switching the control modes in real time.

The switch comprises a base and a handle, the handle is rotationally arranged on the base, a static contact piece and a movable contact piece are arranged in the base, the switch further comprises a transmission rod, transmission parts are arranged on the two sides of the handle, one end of the transmission rod is rotationally connected with the transmission parts, and the other end of the transmission rod is rotationally connected with the movable contact piece. One end of the transmission rod is rotationally connected with the transmission part of the handle, the other end of the transmission rod is rotationally connected with the movable contact piece, the transmission rod plays a transmission role between the handle and the movable contact piece, and the contact areas of the transmission rod, the handle and the movable contact piece are small, so that the heat transfer area during closing is reduced, and the temperature rise of the handle is reduced; the handle is ensured not to deform during long-time switching on, and the stability and reliability of the product are improved.

1. The name of the design product: thermostat timer switch. 2. The use of the design product: switch for controlling the working time, temperature and gear of electric heater. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

The utility model provides a multi-channel video signal source real-time switching management circuit which is characterized in that the output end of a power supply is in power supply connection with a power supply voltage adjusting circuit and a video signal display device, and the output end of the power supply voltage adjusting circuit is in power supply connection with a video signal processing main control circuit; the input end of the video signal processing main control circuit is connected with the output end of the video signal input interface 1, the output end of the video signal input interface 2, the output end of the video signal input interface 3 and the output end of the control key, and the output end of the video signal processing main control circuit is connected with the input end of the video signal display device. A main control chip U18 is arranged in the video signal processing main control circuit, and the model of the main control chip U18 is LQFP64. The beneficial effects of the utility model are that the system can achieve the automatic screening of an optimal video signal source from multiple paths of video signal sources, and the switching display of the optimal video signal source.

The utility model relates to the technical field of silicon controlled rectifier dimming, in particular to a multi-color-temperature multi-power switching circuit compatible with silicon controlled rectifier dimming, which comprises a rectifying and filtering module, a silicon controlled rectifier dimming constant-current module, an MCU (Microprogrammed Control Unit) linear power supply module, a power failure detection module, a color temperature control module, a double-path PWM (Pulse-Width Modulation) dimming constant-current module and a load module, the input end of the power failure detection module is electrically connected with the rectification filtering module and used for detecting the power failure condition of the rectification filtering module, and the output end of the power failure detection module is electrically connected with the analog input end of the color temperature control module. The two pulse width modulation ends of the color temperature control module are electrically connected with the two pulse width modulation ends of the double-path PWM dimming constant-current module in a one-to-one correspondence manner, so that not only can a silicon controlled rectifier dimmer be compatible for brightness adjustment, but also the color temperature and the power can be flexibly and conveniently switched at any time; and meanwhile, the problem that the color temperature and the power are switched mistakenly due to the fact that a switch is turned on for several times due to mistakes in the actual use process is solved, and then the use experience of customers is improved.

This utility model relates to a timer switch with categorized timing functionality, aiming to solve the technical shortcomings of existing single timer switches, which suffer from cumbersome user operations and inability to quickly switch between different timing schemes due to rigid timing configuration management when adapting to different loads or application scenarios. This utility model's timer switch features innovative improvements in hardware structure. Through the coordinated operation of its internal data management mechanism and user command response mechanism, it achieves categorized storage and one-click overall switching of multiple independent timing schemes. Users only need a simple selection operation to quickly switch the timer switch between different preset working modes, greatly improving its adaptability to multiple loads and application scenarios, enhancing user experience, and avoiding the hassle of repeatedly modifying specific timing parameters.

The embodiment of the utility model discloses a plug valve electric switch device, which is applied to a gas stove and comprises a valve rod driving motor, a valve rod driving motor and a valve rod driving motor, the reduction gearbox is connected with an output shaft of the valve rod driving motor, and the axis position of the reduction gearbox is arranged to be a first valve rod limiting hole capable of being arranged on a valve rod of the plug valve in a sleeved mode. The utility model further discloses a corresponding gas stove timer and a plug valve. The plug valve can be effectively reset when fire is turned off, and the problem that a secondary coil of the electromagnetic valve is prone to being corroded by fuel gas and fails is effectively solved.

The utility model discloses a gear oil pump with a filtering structure, which relates to the technical field of gear oil pumps and comprises an oil pump body, a filtering mechanism is arranged on the right side of the oil pump body, and a moving mechanism is arranged at the bottom of the oil pump body. Through cooperative operation of the two valves and the two decontamination assemblies, the decontamination process is divided into two steps, so that the oil pump can normally operate in the cleaning process, and the problem that normal operation of the oil pump is delayed when an existing oil pump filtering device is cleaned is solved; a user only needs to set the decontamination cleaning time through the timing switch, the decontamination assembly can automatically clean the first filter screen, and the user only needs to regularly pull out the pull piece to clean the garbage in the pull piece, so that the problems that the filter screen needs to be dismounted every time when an existing oil pump filtering device is cleaned, the dismounting and mounting are inconvenient, and time and labor are wasted are solved.

The utility model discloses a blowing cooling device for an electrolytic bath. The blowing cooling device comprises a compressed air pipe; the air guide pipe is provided with a first end and a second end which are oppositely arranged, and the first end is connected with the compressed air pipe; the air outlet pipe is connected with the second end, the air outlet pipe is provided with a plurality of air outlets, the multiple air outlets are arranged at intervals in the length direction of the electrolytic cell, and the air outlets spray air to a cell shell of the electrolytic cell; the electromagnetic valve is arranged on the compressed air pipe and / or the air guide pipe and used for controlling the air flow between the compressed air pipe and the air outlet pipe; and the time type switching device is connected with the electromagnetic valve and is used for controlling the electromagnetic valve to start and stop. According to the blowing cooling device for the electrolytic bath, air can be intermittently supplied to cool the electrolytic bath, it can be guaranteed that the temperature of the electrolytic bath is low, energy waste can be avoided, and the damage rate of the pipeline and the valve body is reduced.

1. The name of this design product: automatic timer switch. 2. Purpose of this design product: used as a switch. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model discloses a timed disinfection system for laboratory disinfection, which comprises a door lock module arranged at an entrance of a laboratory, an indicating lamp arranged at the top of the door lock module positioned on the outer side of the laboratory, and a control module, a time switch and an identification module which are respectively arranged in the laboratory, the recognition module is electrically connected with the time control switch through the control module to form linkage fit, the time control switch is electrically connected with the door lock module, the disinfection module and the indicator light through the control module to form linkage fit, and the door can be closed after setting through the time control switch. When the recognition module recognizes that no person is in the room and the door lock module is closed, the time control switch is started, the time control switch locks the door lock module and starts the disinfection module and the indicator lamp for ultraviolet disinfection, the self-control performance is good, and the safety is high.

The present invention discloses an intelligent leafy vegetable harvester, which uses a motor to drive a triangular crawler as a traveling mechanism, and drives the cutting, soil shaking, and conveying mechanisms to operate through the motor. It adopts two sets of conveying mechanisms. The primary conveyor conveys the cut leafy vegetables, and the secondary conveyor mechanism uses a time switch to achieve the collection of leafy vegetables in one direction to a fixed position. This machine adopts two sets of electric control systems. One set is controlled by buttons on the machine itself, and the other set realizes remote control through a remote controller. The remote controller sends signals to the control mechanism of the whole machine to enable the whole machine to automatically move forward, turn, and complete operations in the field.

The utility model discloses suspension culture auxiliary equipment for a cell culture bag. The suspension culture auxiliary equipment comprises a culture box, a lifting spring bracket, a lifting motor, a left-right shaking panel, a box body, a horizontal shaking box, a motor, a turntable, a T-shaped connecting rod, a sliding chute rod, a sliding block and the like. The incubator is connected with a lifting motor through a lifting spring support, the left-right shaking panel is matched with the left-right shaking box through a side plate, and the left-right shaking box is connected with the horizontal shaking box through a sliding block. And a buckle and a bandage are arranged in the culture box to fix the culture bag. A control panel is arranged on the outer side of the horizontal shaking box, can control the lifting spring support, the lifting motor, the motor and the like, and has a timing switch function and a power line connector. The equipment provides a more comprehensive and uniform suspension culture environment for cells through horizontal shaking, left-right shaking and adjustable inclination, and can improve the cell culture quality and success rate.

The utility model relates to water treatment technical field, specifically is a kind of PH timing detection device for water treatment, including main structure board, the timing switch is installed in the one side of main structure board by mounting seat, the PH monitor is installed in the one side of the bottom of timing switch in main structure board by mounting bracket, sleeve is installed in the one side of the bottom of PH monitor in main structure board by mounting bracket;The sleeve bottom end is sleeved with telescopic rod, the detection probe is installed in the bottom of telescopic rod by mounting bracket, the top of telescopic rod inside sleeve is connected with piston block by thread groove, the top of piston block is fixed with tension spring by bolt;When working, air intake component is extracted to sleeve inside gas, makes telescopic rod and its bottom detection probe descend, insert into sewage, detect sewage acidity and alkalinity, after detection, gas is discharged by air outlet component, makes detection probe ascend, avoid its long-time soaking in sewage.

A hands-free, Red-Light Therapy device comprising a first base that stays outside the mouth and a semicircular or U-shaped lip spacer inserted into the mouth, with extended arms featuring inner tooth spacers. It has three sets of LEDs: a node on an adjustable, flexible, and detachable arm attached to the lip spacer, LEDs around the outer surface of the lip spacer, and LEDs on the side wall of the first base. Powered by a rechargeable battery with a timer switch, the device delivers red light (633-850 nm) to the inner mouth, lips, gums, and teeth, facilitating the treatment of mouth sores and injuries. The lip spacer is designed to open and hold the mouth securely using tooth spacers sized to fit 2-3 molars. This invention addresses the need for a convenient and effective at-home treatment for oral pain and sores, combining the benefits of red-light therapy with hands-free operation.

The utility model relates to an independent long-time simulation timing switch control circuit, which comprises an isolation power supply module, an integrator module, a charging capacitor adjusting module and a relay control module. A pin 3 of the isolation power supply module outputs VEE and is connected to the integrator module. In the integrator module, the anti-phase end of an operational amplifier is connected with the VEE through a sixth resistor, the non-inverting end of the operational amplifier is connected with the VEE through a third resistor and is grounded through a fourth resistor, and the output end and the anti-phase end of the operational amplifier are directly connected with an integrating capacitance adjusting module. The charging capacitance adjusting module is formed by connecting a first capacitance branch, a second capacitance branch, a third capacitance branch, a fourth capacitance branch and a reset switch in parallel. The relay control module comprises a first triode, a relay physical switch, a charging loop switch and a relay. Compared with the prior art, the system has the advantages of wide timing range, high stability, interference resistance and the like.

The utility model discloses a support protector for preventing foot drop of a critical patient, which comprises a lower limb protector and a foot binding structure, and the lower limb protector comprises a leg support pad and a sole support pad fixedly mounted at the left end of the leg support pad. According to the supporting protector for preventing foot drop of the critical patient, by arranging a lower limb protector and a foot binding structure, a leg supporting pad is worn on the shank of the patient, a sole supporting pad is worn on the sole of the foot, and then an electric telescopic rod is driven to contract to drive a traction rope to pull the sole supporting pad, so that the ankle joint of the patient can be fixed; then the opening and closing duration of the electric telescopic rod can be set through a timing switch, the electric telescopic rod can be driven to reset after traction reaches the set duration, and therefore the traction rope can be loosened to relax the ankle joint and muscles, the timing switch is used for circulating the interval switch, and therefore circulating interval traction can be conducted on the ankle joint of a patient; frequent manual adjustment by medical staff is not needed, and use by the medical staff is facilitated.

A self-contained hardware apparatus and method that enables proprietors to efficiently manage and allocate electric power from a designated source using timer-driven switches and electric breakers, to distribute power to charge multiple electric vehicles of all types and sizes, including land, water, or aerial vehicles, across diverse locations, without relying on software-driven communication or wireless connectivity, thereby eliminating the need for third-party equipment or subscriptions. It optimizes surplus power from the source, utilizing timers and switches to divide it into multiple transmission cables. Each cable delivers power at specified voltage and amperage levels to individual charging units, ensuring efficient and tailored charging without the need to share physical charging spaces.

The utility model relates to the technical field of carbon production, and discloses a carbon production powder recycling system, which comprises a screw conveyer, a pneumatic bin and a coke powder bin, the screw conveyer is arranged at the input end of the pneumatic bin, a splicing piece is fixed outside a connecting pipeline, and a striking piece is arranged on the side wall of the splicing piece, so that the connecting pipeline is connected with the pneumatic bin. When the time set by a timing switch is up, a driving motor operates to enable a rotating column to drive a rotating plate to rotate, so that a sliding block is subjected to downward stirring acting force, then the sliding block impacts the bottom of a striking piece, and then the striking piece transmits vibration acting force to a connecting pipeline through a splicing piece after vibration; when the connecting pipeline vibrates, powder attached to the inner wall of the connecting pipeline can be vibrated down, so that the connecting pipeline can be vibrated to solve the problem of blockage when more powder adheres to the wall of the connecting pipeline to cause blockage, and long-term stable operation of the carbon production powder recycling system is facilitated.

A battery health and depassivation testing apparatus includes a timed switch electrically connected to the positive terminal of the battery and a timer circuit to control the timed switch while conducting the battery test, a test initiation switch and a test-in-progress indicator. During the test the battery is connected to a current sink circuit to establish a load condition for a predefined period of time. A comparator is used to test the battery's voltage to a known DC voltage following the load condition. Pass / fail indicator LEDs are provided to display the results of the test. The battery health and depassivation testing apparatus also includes a polarity protection circuit connected to a polarity error indicator to prevent damage to the circuitry due to the battery being installed backwards.

1. The name of the design product: intelligent digital power strip (with screen display). 2. The use of the design product: for electrical circuit short circuit protection, electronic engineering digitization display, high-power overload multi-intelligent alarm, power voltage and environmental temperature information screen display, remote timing switch control, APP background operation monitoring, energy-saving electricity statistics, digital product super-fast charging. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

The invention discloses an enhanced underwater wireless optical communication system energy harvesting method based on a time switching mode, and belongs to the technical field of underwater wireless optical communication. A current signal received by a solar cell panel serving as an underwater photoelectric receiver is divided into two sections according to a total working time period Ttot, one section tau Ttot is used for information decoding, the other section (1-tau) Ttot is used for special energy collection, and tau is a time division factor. In an information decoding time period tau Ttot, the AC / DC separation device recovers a DC bias component item which is originally discarded in the received current signal, and the remaining AC signal item is used for information decoding; and the direct-current component recovered at the time period and the special energy harvesting item in the special energy harvesting time period (1-tau) Ttot are sent to an energy harvester together for total energy collection, so that energy harvesting efficiency which is more efficient than that of a traditional time switching (TS) mode is obtained. According to the enhanced underwater wireless optical communication system energy harvesting method based on the time switching mode provided by the invention, the energy of the discarded direct current component in the information decoding module in the decoding time period can be recycled and reused, so that more energy can be harvested under different threshold spectrum efficiencies compared with a traditional TS (Transport Stream) method.