35results about How to "Control power off" patented technology

The invention discloses a household electrical appliance and a fault arc detection device and method used therefor, wherein the fault arc detection device comprises a power grid current detection unit used for detecting the current flowing from a power grid into the household electrical appliance so as to generate a first current detection signal; a filtering protection unit used for carrying out attenuation processing on an arc signal in the power grid; a load current detection unit used for detecting the practical operation current of loads of the household electrical appliance so as to generate a second current detection signal; and a control unit, wherein the control unit is connected with the power grid current detection unit and the load current detection unit and is used for identifying and comparing the first current detection signal and the second current detection signal so as to determine the generation source of the fault arc. The fault arc detection device is capable of accurately determining the generation source of the fault arc, and false action is effectively avoided.

The invention discloses an iron bar automatic segmenting mechanism, and belongs to the field of metal material processing mechanical equipment. The iron bar automatic segmenting mechanism includes a material-carrying mechanism, a material-cutting mechanism and a fixing material-pushing mechanism which are sequentially and fixedly arranged at one side of a fixing support in the horizontal direction, and a material-carrying chain which is winded is horizontally arranged between a main material-carrying chain and a secondary material-carrying chain; a material-carrying electromagnet is fixedly arranged at the outer side of the material-carrying guiding plate, a reciprocating material-cutting plate is slidably arranged at a material-cutting guiding rod in the horizontal direction, and a cutting handpiece is slidably arranged at the reciprocating material-cutting plate in the vertical direction; and a horizontal-pushing guiding rod is separately and horizontally fixed to two sides below a horizontal-pushing connecting plate, a fixing guiding plate and a moving guiding plate are separately and vertically arranged at two sides of the horizontal-pushing guiding rod, and the material-transporting mechanism is horizontally and fixedly arranged at the upper side of a material-transporting supporting plate. According to the iron bar automatic segmenting mechanism, the structural design isreasonable, iron bars can be transferred horizontally, stably, accurately and intermittently according to needed length, the iron bars can be clamped and cut and automatic feeding can be realized, andthe need for machining using can be met.

The invention relates to the technical field of wind engine stall protection, and discloses a wind engine stall protection device which comprises a shell. A power shaft is movably connected to the middle of the shell, a brake pad is fixedly connected to the outer side of the power shaft, a brake cavity is formed in the inner wall of the middle of the shell, and reset springs are fixedly connectedto the inner wall of the middle of the brake pad. Centrifugal blocks are fixedly connected to the outer sides of the reset springs, and dielectric plates are fixedly connected to the middle inner walls of the centrifugal blocks. According to the wind engine stall protection device, the power shaft drives the brake pad to rotate, the brake pad drives the centrifugal blocks to rotate, and then positive plates, negative plates and the dielectric plates are used in cooperation, so that the effect of controlling on-off of electromagnets is achieved, the dielectric plates in the middles of the centrifugal blocks move along with the centrifugal blocks, the relative area of the positive plates and the negative plates is changed, the voltage between every two pole plates rises, the working voltageof a piezoresistor is reached, and the electromagnets are electrified to generate magnetic force repelling magnetic blocks.

The invention discloses an intelligent remote control socket, and aims to provide the intelligent remote control socket with capabilities of realizing intelligent remote control and intelligently controlling power on and power off, energy conservation, environmental protection and convenient operation. The intelligent remote control socket comprises a control device, a radio-frequency remote control receiving module, a relay, a relay drive module, a memory and a power supply module, wherein the control device is used for analyzing and processing the received coding waveform; when the analyzed coding waveform accords with a set remote control code stored in the memory, the control device sends an instruction signal to the relay drive module; and after receiving and identifying the instruction signal sent by the control device, the relay drive module drives the relay to act so as to control power on or power off of a peripheral controlled object. The intelligent remote control socket can be widely applied in the electric appliance control field.

The invention relates to a street lamp system and especially relates to a street lamp system based on haze control, wherein the system can automatically adjust an illumination color temperature and a light intensity according to a weather visibility condition; and the structure of the system is simple and usage is convenient. A CPU master control unit is connected to a haze monitoring unit and a street lamp color temperature light intensity adjusting unit. The street lamp color temperature light intensity adjusting unit is also connected to an illumination unit. By using the street lamp system based on haze control, through cooperation of the CPU master control unit, the haze monitoring unit, the street lamp color temperature light intensity adjusting unit, the illumination unit and the like, the haze monitoring unit monitors a haze concentration in real time so as to dynamically adjust a color temperature and the light intensity of the illumination unit; and illumination is convenient to achieve and people life quality is improved. Under a haze weather state, an illumination indication effect is provided for pedestrians, and automatic, intelligent and humanized control is achieved; and resources are reasonably used and electric energy can be high-efficiently saved.

The invention discloses an intelligent remote switch, and aims to provide an intelligent remote switch having the advantages of capacity of realizing intelligent remote control, energy conservation, environmental protection and convenient use. The intelligent remote switch comprises a control device, a radio frequency remote receiver module, a drive circuit, a storage and a power module, wherein the control device analyzes the received coding waveform, and sends an instruction signal to the drive circuit when analyzing that the coding waveform is consistent with a set remote control code stored in the storage; and the drive circuit receives and identifies the instruction signal sent by the control device, and controls the power on or off of peripheral controlled objects, wherein the drive circuit is a silicon-controlled drive circuit. The intelligent remote switch can be widely promoted, and can be applied in the field of electrical apparatus control.

The invention provides a control method and system of a vehicle range extension device and belongs to the field of vehicles. The control method includes the following steps that a vehicle control unitdivides fault levels according to the orders of severity of faults happening to a vehicle and sending the fault levels to a CAN bus; a range extension device controller reads information of the faultlevels, the vehicle speed and the need state of the range extension device on the CAN bus; and the range extension device controller responds to different control strategies according to the above information so as to control the range extension device to execute corresponding actions, wherein the control strategies comprise the passive control strategy passively responding to a command of the vehicle control unit and the active control strategy actively sent out by the range extension device controller when the fault level is high. The invention further provides the corresponding control system. By the adoption of the control method and system, responses to the different control strategies can be made according to the orders of severity of the faults happening to the vehicle, the range extension device is effectively controlled in time to be safely stopped or powered off, and potential safety hazards are avoided.

The invention relates to the technical field of cement hoisting and discloses a hoisting stall self-locking device for cement feeding. The hoisting stall self-locking device comprises an outer shaft,the inner wall of the outer shaft is connected with a clamping ring in a sleeved manner, the inner wall of the clamping ring is connected with a rotating shaft in a sleeved manner, a piezoresistor isfixedly connected to the middle portion of the inner wall of the rotating shaft, a return spring is fixedly connected to the middle portion of the inner wall of the rotating shaft, a positive pole plate is fixedly connected to the middle portion of the inner wall of the rotating shaft, a sliding block is movably connected to the middle portion of the inner wall of the rotating shaft, a dielectricplate is fixedly connected to the inner wall of the middle portion of the sliding block, and a negative pole plate is fixedly connected to the middle portion of the inner wall of the rotating shaft. According to the hoisting stall self-locking device for the cement feeding, the rotating shaft drives the sliding block to move, the sliding block drives the dielectric plate to move, then the positivepole plate and the negative pole plate are used in cooperation, so that the effect of controlling on-off of an electromagnet is achieved, the dielectric plate moves relatively, the relative area of the positive pole plate and the negative pole plate is gradually decreased, the voltage between the two pole plates is decreased, at the moment, the working voltage of the piezoresistor is reached, andthe electromagnet is powered on to generate magnetic force repelling a magnetic field and a magnetic block mutually.

The invention relates to an energy-saving and environment-friendly wireless charging seat. The energy-saving and environment-friendly wireless charging seat comprises a base (100), a charger body (200), a pressure sensor (300), a turning portion (400) which is used for turning the charger body (200), and a control module; the control module is used for controlling the turning portion (400) to be turned to an inclined state when the pressure of the charger body (200) detected by the pressure sensor (300) is greater than a first threshold, and controlling the charger body (200) to be energized;and the control module is used for controlling the turning portion (400) to be turned to a horizontal state when the pressure change of the charger body (200) detected by the pressure sensor (300) issmaller than the first threshold, and controlling the charger body (200) to be de-energized. According to the energy-saving and environment-friendly wireless charging seat of the invention, the charger body (200) is turned to the inclined state through the turning portion (400), so that the charger body (200) can function as a mobile phone holder, so that a user can use a mobile phone when the mobile phone is charged.

The invention discloses a hanger for spraying of a ferromagnetic metal part of an automobile. The hanger comprises a bottom plate which is a square plate, wherein a backboard which is a vertical square plate is arranged on the bottom plate; hanging racks, each comprising a first supporting rod and a second supporting rod, are uniformly distributed on the backboard; the first supporting rods are ofhollow bent tubular structures; one end of each first supporting rod is connected to the backboard; the second supporting rods which are vertical forked rod bodies are arranged on the first supporting rods; through holes which communicate with hollow parts in the first supporting rods are formed in the backboard; electromagnets are arranged at the end parts of the first supporting rods; circuitsfor the electromagnets are arranged at the hollow parts in the first supporting rods; a pressing type switch is arranged on the bottom plate; and the electromagnets are electrically connected to the switch and are connected to a power supply. With the adoption of the hanger for the spraying of the ferromagnetic metal part of the automobile, the ferromagnetic metal part can be conveniently and quickly fixed.

The invention relates to a vehicle power-off method and device, and a vehicle, and relates to the field of vehicle control. The method comprises the steps: obtaining state information of the vehicle,wherein the state information includes a speed of the vehicle and the state of a target cover, and the target cover includes an engine cover and / or an oil tank cover of the vehicle; and when the vehicle speed is zero and the target cover is opened, making the vehicle be powered off. When the vehicle is in a refueling or maintenance scene, manual operation of a driver is not needed, the vehicle canbe controlled to be powered off, and use safety and convenience of the vehicle are improved.

The invention discloses a fire emergency illumination management system. The fire emergency illumination management system comprises a smoke detection unit, an emergency illumination unit, a central processor and a display screen; the smoke detection unit comprises a smoke sensing detector, an information storage unit, a detection battery, a transmitting circuit and a nozzle; the smoke sensing detector, the information storage unit, the transmitting circuit and the nozzle are connected with the detection battery; the emergency illumination unit comprises more than one emergency illumination lamp, the emergency illumination lamp comprises a lamp holder with an external power supply connector, and a large lamp, more than one small lamp, a control circuit, a transmitting and receiving circuit and an illumination battery are disposed in the lamp holder. Emergency illumination time of the fire emergency illumination management system is long, and the fire emergency illumination management system can effectively control a fire original-point power supply.

The invention discloses a household electrical appliance and a fault arc detection device and method used therefor, wherein the fault arc detection device comprises a power grid current detection unit used for detecting the current flowing from a power grid into the household electrical appliance so as to generate a first current detection signal; a filtering protection unit used for carrying out attenuation processing on an arc signal in the power grid; a load current detection unit used for detecting the practical operation current of loads of the household electrical appliance so as to generate a second current detection signal; and a control unit, wherein the control unit is connected with the power grid current detection unit and the load current detection unit and is used for identifying and comparing the first current detection signal and the second current detection signal so as to determine the generation source of the fault arc. The fault arc detection device is capable of accurately determining the generation source of the fault arc, and false action is effectively avoided.

The invention provides a deicing device for blades of a wind generating set and the wind generating set, and relates to the technical field of wind power generation. The deicing device for blades of the wind generating set comprises a variable-pitch system, a heating assembly, a power supply assembly and a current detecting assembly; a driver is arranged in the variable-pitch system; the power supply assembly, the driver and the heating assembly are sequentially connected; the current detecting assembly is mounted on a circuit between the heating assembly and the power supply assembly, and isconnected to the driver; a preset current value is set in the driver; and the driver can control power off between the heating assembly and the power supply assembly while a current value detected bythe current detecting assembly is greater than the preset current value. The deicing device relieves the technical problem that the circuit cannot be protected immediately during over-current dry frying if the circuit between the power supply and a heating element in the deicing device for the blades of the wind generating set in the prior art has over-current dry frying, and the heating element needs to interrupt by the controller for protecting the circuit after the blades are gradually heated up to a higher temperature.

The invention discloses an encryption chip fault recovery method and system, electronic equipment and a computer readable storage medium, and the method comprises the steps: when an encryption chip does not respond to a command of a main control chip, controlling a handle of SPI equipment corresponding to the encryption chip to be closed, and unloading a driver of the SPI equipment; pulling down a power supply control port of the encryption chip, controlling the encryption chip to be powered off, and controlling the encryption chip to be powered on after a preset time is delayed; and loading a driver of the SPI equipment, and controlling the handle to open. According to the encryption chip fault recovery method, whether the encryption chip is abnormal or not is automatically detected through software, when the encryption chip is abnormal, fault recovery is conducted in the mode of reloading the driver and restarting the SPI equipment handle, rapid recovery can be achieved, the encryption function can be recovered without restarting, and therefore the reliability and integrity of uploaded data are guaranteed, and the stability and reliability of the system are improved.

The invention discloses an intelligent submersible pump system based on Internet of Things. The system comprises a pump body and a motor; the motor comprises a motor shell, a stator arranged in the motor shell, and a pump shaft is fixedly connected with a rotor, the top end of the motor shell is connected with a junction box, the pump shaft is connected with an upper bearing and a lower bearing, the upper bearing is connected with a first temperature sensor, a winding of the stator is connected with a second temperature sensor, and the lower bearing is connected with a third temperature sensor; a water leakage detector and a floating ball switch are arranged in a middle bearing seat, a humidity sensor and a water pump intelligent protector are arranged in the junction box, the water pump intelligent protector is in communication connection with Internet-of-Things monitoring management systems to transmit sensor information in a submersible pump to the Internet-of-Things monitoring management systems; and the system further comprises a central integrated management system which is in communication connection with the Internet-of-Things monitoring management systems, and the centralintegrated system is used for carrying out centralized monitoring on the plurality of Internet-of-Things monitoring management systems. According to the system, the purpose of intelligent management of the water pump Internet-of-Things is achieved.

The invention relates to a diamond-studded sparkling suit ring, which comprises a first ring, a second ring and a third ring. An upheaved part is arranged on the ring form of the ring so as to form aninclined plane. A diamond is arranged on the inclined plane, thus increasing brilliance of the ring. A solar panel is arranged on the ring, is capable of converting luminous energy to electric energyand powers LED lamp beads; and the LED lamp beads are arranged below the diamond and can increase brilliance of the diamond. Meanwhile, one ring is provided with an electromagnetic wave generating circuit, and the other ring is provided with an electromagnetic wave receiving circuit. When two persons who wear the ring approach each other, the LED lamp beads arranged on the ring will give out light automatically, thus increasing brilliance of the ring and enhancing playability and interest of the ring. A vibration switch is arranged between the LED lamp beads and the circuit so as to control on-off of the LED lamp beads.

The invention discloses an electricity utilization safety electrical automatic control system, and relates to the technical field of electrical control. The problems that in the prior art, due to sudden power failure, other electrical devices are prone to being damaged, electricity transmission ports are prone to being mistakenly touched, electricity utilization accidents are prone to occurring, and consequently the serious economic loss is prone to being caused are solved. According to the key points of the technical scheme, the electricity safety electrical automatic control system comprisesa main controller, processors and electricity utilization units corresponding to the processors one to one, and the processors are in communication connection with the main controller; the electricity utilization units comprise code scanners, electricity utilization equipment, electricity transmission ports and normally-open relays corresponding to the electricity transmission ports one to one; bar codes are pasted to the electricity utilization equipment and store operating parameters of the electricity utilization equipment; the two electrical ends of the normally-open relays are electrically connected with an electricity supplying end and the corresponding electricity transmission ports correspondingly; and the code scanners are electrically connected with the processors, and the processors are electrically connected with the normally-open relays. The electricity safety electrical automatic control system has the effects that the electricity transmission ports are prevented from being connected into electrical equipment exceeding the rated power, the situation of mistaken touch of the electricity transmission ports is avoided, and the electricity accidents are reduced.

The invention discloses an anti-reverse connection circuit, a control method, a photovoltaic power supply system and a photovoltaic air conditioner. The anti-reverse connection circuit comprises a resistance sampling module, a logic judgment module and a controller which are connected in sequence, wherein the resistance sampling module is connected to an interface of a photovoltaic string and a frequency converter, and is used for collecting positive voltage and negative voltage at the interface and generating a sampling signal based on the positive voltage and the negative voltage; the logic judgment module is used for generating a control signal according to the sampling signal; and the controller is used for controlling the on-off of the frequency converter according to the control signal. A voltage sensor can be prevented from being used for voltage sampling, the cost is saved, meanwhile, after reverse connection, the controller can cut off the power supply of the frequency converter in time, and the safety is improved.

The invention provides a blade deicing device of a wind power generator set and a wind power generator set, and relates to the technical field of wind power generation. The blade deicing device of the wind power generating set includes a pitch system, a heating assembly, a power supply assembly and a current detection assembly. A driver is arranged in the pitch control system, and the power supply component, the driver and the heating component are connected in sequence. The current detection component is installed on the circuit between the heating component and the power supply component, and is connected with the driver. A preset current value is set in the driver, and the driver can control the power cut between the heating component and the power supply component when the current value detected by the current detection component is greater than the preset current value. The invention alleviates the need to wait for the blade to gradually rise to a higher temperature when the circuit between the power supply and the heating element in the blade deicing device of the wind power generating set in the prior art is dry-burned, and then uses the controller to turn off the heating element. It is a technical problem that the circuit cannot be protected immediately when the circuit is over-current and dry-burned.

The present invention relates to a keyboard switch control device, and comprises a switching circuit, a delay circuit and a control circuit, which are orderly connected. The switching circuit is used for generating level signals and transmitting the level signals to the delay circuit; the delay circuit is used for delaying the level signals received from the switching circuit and transmitting thelevel signals to the control circuit; the control circuit is used for receiving the level signals delayed by the delay circuit; the output end of the control unit transmits the control signals of different levels to the power supply end of a keyboard control circuit, so as to control the connection and disconnection of the power supply at the power supply end.

The embodiment of the invention provides a GOA signal detection circuit and method, a signal output system and a display module. The GOA signal detection circuit comprises a sampling unit used for acquiring a GOA signal output by a GOA signal output unit and converting the GOA signal into a sampling level signal; the processing unit is used for comparing the sampling level signal with a designed reference level signal to obtain comparison data; and the control unit is electrically connected with the processing unit, is configured to be electrically connected with the power supply unit, and is used for determining whether the comparison data is matched with the designed target data or not, and controlling the power supply unit to be powered off if the comparison data is not matched with the designed target data. According to the GOA signal detection circuit provided by the embodiment of the invention, self-detection of the GOA signal can be realized, abnormity of the GOA signal can be quickly and timely found, the power supply unit is controlled to be powered off, and expansion of abnormal loss is avoided, so that the abnormal loss is reduced.

The present invention relates to a keyboard switch control device, and comprises a switching circuit, a delay circuit and a control circuit, which are orderly connected. The switching circuit is used for generating level signals and transmitting the level signals to the delay circuit; the delay circuit is used for delaying the level signals received from the switching circuit and transmitting the level signals to the control circuit; the control circuit is used for receiving the level signals delayed by the delay circuit; the output end of the control unit transmits the control signals of different levels to the power supply end of a keyboard control circuit, so as to control the connection and disconnection of the power supply at the power supply end.

The invention discloses an environment-friendly electric cooker. The environment-friendly electric cooker comprises a cooker body, a cooker cover and an inner container contained in the cooker body, and a heating plate used for heating the inner container is arranged on the lower portion in the cooker body. The environment-friendly electric cooker further comprises an alkali metal thermoelectric converter, an energy storage battery, a main control panel, a memorizer and an LED digital display screen arranged on the side face of the cooker body, and the side face of the cooker body is completely covered with the LED digital display screen. A relay switch is arranged between the heating plate and a cooker external power supply end, and the relay switch is electrically connected with an electric cooker timer to control the heating plate to be powered off after cooking is completed. The alkali metal thermoelectric converter is additionally arranged on the outer surface of the inner container, heat which the inner container is about to volatilize to air is converted into electric energy through thermoelectric conversion and stored in the battery, then the battery can supply power to the additionally arranged LED digital display screen, and thus no extra electric energy is consumed.

The invention relates to the technical field of planning fence fixing, and discloses a base anti-toppling device for a movable planning fence, which comprises a base, an inserting rod is clamped in the middle of the base, a clamping groove is formed in the middle of the inserting rod, an electromagnet is fixedly connected to the middle of the base, a piezoresistor is fixedly connected to the inner wall of the middle of the base, and a positive plate is fixedly connected to the inner wall of the base. According to the base anti-toppling device for a movable planning fence, an inserting rod drives a pressing block to move, the pressing block drives a concave ball to move, and then an air bag and a dielectric plate are used in cooperation, so that the effect of controlling on-off of an electromagnet is achieved, the pressing block moves towards the left under the action force, at the moment, the arc groove in the middle of the concave ball drives the trigger rod to move along the inner wall of the arc groove; and the trigger rod extrudes the air bag, the air bag expands and deforms, the air bag expands leftwards all the time to drive the dielectric plate to move leftwards, the voltage at the two ends of the positive plate and the negative plate is decreased, the working voltage of the piezoresistor is achieved, and the electromagnet is powered on to generate a magnetic field.

A power control method for a mobile terminal is disclosed. At a power-off request of a mobile station user, the mobile station attempts to send a power-down registration request to a base station for as many times as set in a maximum attempt sequence. Upon failure to receive a response from the base station even after the attempts to send the power-down registration request for as many times as set in the maximum attempt sequence, the mobile station reattempts the power-down registration request operation for as many times as set in a predetermined retry number. Upon receipt of a response from the base station during the reattempts, the mobile station performs power-off of the mobile station. Further, the mobile station performs a call processing process upon receipt of an incoming call during the reattempts.

The invention relates to the field of electric appliances, and provides a power-on control method and device of a container, electronic equipment and a storage medium. The power-on control method of the container comprises the steps of obtaining mains supply input information; controlling a standby power supply to supply power on the basis that the mains supply input information meets a mains supply failure condition; and controlling the standby power supply to be powered off based on the condition that the container working information meets a first preset condition. According to the power-on control method of the container, on the one hand, the standby power supply can be switched to supply power to the container when the mains supply is powered off and other abnormal conditions occur, and the abnormal conditions are avoided, so that normal use of the container is guaranteed, and smooth shopping of a user is guaranteed; on the other hand, the standby power supply is turned off in time before the standby power supply runs out, so that the service life of the standby power supply is prevented from being affected by running out of power, and the service life of the standby power supply is prolonged.

The invention discloses a semi-automatic chain saw capable of reducing noise, and relates to the technical field of chain saws. The semi-automatic chain saw comprises a shell, a detection mechanism is fixedly connected to the inner wall of the top of the shell and plays a role in judging whether the chain saw is in a lubricating oil lacking state or not, an adding mechanism is fixedly connected to the inner wall of the shell and is close to the bottom of the detection mechanism, and the adding mechanism plays a role in adding lubricating oil. According to the semi-automatic chain saw capable of reducing the noise, through cooperative use of the detection mechanism and the adding mechanism, by means of the working state of the equipment, when the lubricating oil lacks, an equipment body shakes violently, a damping block in the detection mechanism converts mechanical energy into heat energy, gas in a gas film is subjected to thermal expansion, a movable contact makes contact with a fixed contact, the adding mechanism is electrified to realize the effect of automatically adding the lubricating oil, and therefore the effect of automatic judgment is achieved. Compared with an existing chain saw, the automatic judgment effect is added, the problem that the chain saw lacks lubrication is effectively solved in time, and practicability is improved.