27results about How to "Avoid power failure" patented technology

The invention relates to an intelligent scheduling system and method based on electric power, and belongs to the technical field of data processing, and the method comprises the steps: S1, obtaining the position information and power utilization types of all power distribution rooms in a target region, and obtaining a historical power supply sequence and power supply total data; s2, dividing the target area into a plurality of sub-areas, and integrating and dividing the power distribution rooms with the same power utilization category into three group levels in the sub-areas; s3, respectively inputting each mean value sequence in the prediction model, and setting a prediction result as the power demand of each power distribution room in each group level in prediction time; and S4, calculating the first total power demand of the power distribution room of each power utilization type in each sub-region in the prediction time and the second total power demand of the target region, and carrying out power dispatching. The method can predict the power demand of the power distribution rooms of different power utilization types in different areas, thereby avoiding the power failure of the power distribution rooms due to insufficient power supply.

The invention relates to a cleaning system, the cleaning system comprises a cleaning device and a base station, the cleaning device comprises a dust box, a first dust collection unit communicating with the dust box and a battery electrically connected with the first dust collection unit, and the first dust collection unit is used for absorbing garbage outside the cleaning device into the dust box; the base station comprises a dust collection cavity and a second dust collection unit communicated with the dust collection cavity; the cleaning equipment further comprises a controller, and when the current voltage of the battery is smaller than or equal to a first voltage threshold value, the controller controls the cleaning equipment to return to the base station; the cleaning system has a dust collection mode, and when the cleaning system is in the dust collection mode, the second dust collection unit is started to absorb garbage in the dust box into the dust collection cavity. While the dust collection efficiency is improved, the base station can be equipped with the fan with smaller power, and meanwhile, the fan noise during working is also reduced.

This application discloses an auxiliary power supply module and a power distribution terminal, belonging to the field of power supply. The auxiliary power supply module includes a charging circuit, an energy storage unit, a power failure detection delay circuit, a boost circuit, and a power output terminal. The charging circuit is connected to the energy storage unit and is used to charge the energy storage unit using the main power supply voltage when the main power supply voltage is normal. The power failure detection delay circuit is connected to both the charging circuit and the boost circuit and is used to output a working voltage to the boost circuit when the main power supply voltage is less than a first target voltage for a target duration. The energy storage unit is connected to the boost circuit and is used to output a stored energy voltage to the boost circuit. The boost circuit is connected to the power output terminal and is used to supply power at the working voltage, converting the stored energy voltage into a supply voltage and providing it to the power output terminal. The supply voltage is used to power the power distribution terminal. This application can improve the service life of the auxiliary power supply module and improve the stability of power supply.

The invention discloses a multi-voltage input control device and a welding machine, and the multi-voltage input control device comprises an input end group, an open-phase detection module, an inter-phase voltage detection module, a connection end switching module, an inter-phase voltage switching module and a voltage transformation module, the inter-phase voltage detection module is used for detecting inter-phase voltage information between electrified phase connection ends, and the connection end switching module is provided with a first electrified end and a second electrified end. The connecting end switching module is connected with the open-phase detection module so as to correspondingly connect each phase connecting end with a first electrified end and a second electrified end according to electrified phase information, and the interphase voltage switching module is connected with the first electrified end, the second electrified end and the primary winding; the interphase voltage switching module changes the number of winding turns of the first live-line end and the second live-line end connected to the primary winding according to the interphase voltage information, can be compatible with more voltage levels, prevents power supply faults caused by wiring errors of a user, and is convenient and reliable to use.

The invention relates to a method for testing contact resistance of a high-voltage switch cabinet. The method comprises the following steps of: performing insulation testing on an A-phase conductive loop, a B-phase conductive loop and a C-phase conductive loop by adopting a high-voltage megohmmeter; respectively testing the integral conductive loop resistance of the phase A, the integral conductive loop resistance of the phase B and the integral conductive loop resistance of the phase C by adopting a loop resistance tester; comparing test data obtained by testing the integral conductive loop resistance of the phase A, the integral conductive loop resistance of the phase B and the integral conductive loop resistance of the phase C; by measuring the overall conductive loop resistance of the high-voltage switch cabinet, the accuracy of the overall conductive loop resistance test of the high-voltage switch cabinet and the stability of the operation process are improved, and heating hidden dangers and larger power supply faults caused by poor contact at the joints of main loops in the operation process are effectively avoided.

The utility model discloses a side outgoing line high-voltage direct current contactor, which comprises a contactor body and an external assembly, the contactor body comprises a shell and a top cover arranged on the upper end face of the shell, and the side wall of one side, close to an auxiliary contact, of the shell is provided with a first line outlet for a first lead to pass through; the external assembly is arranged on the side wall of the shell and comprises a circuit board and a protective cover which covers the circuit board and is connected with the side wall of the shell, and the protective cover is provided with a second wire outlet for a second lead to pass through. According to the utility model, the external assembly is arranged at one side of the housing of the contactor body, and the side wall of the housing is provided with the wire outlet for the lead to pass through, so that the lead is vertical to the main contact, the problem that the coil cannot supply power or feedback signals are invalid due to the fact that the lead is extruded when the main contact is connected to a copper bar is avoided, and the contactor is simple in structure and convenient to use. And the lead layout is orderly and reasonable.

The utility model provides a kind of passive power supply circuit and power supply equipment, it is related to the technical field of energy storage, energy storage module;Rear power supply module, including the first voltage monitoring submodule and linear voltage stabilizer of being connected, the input of the first voltage monitoring submodule is connected with the energy storage module;The output voltage of the energy storage module is lower than first threshold value when the microcontroller is in working condition, the microcontroller is in low power consumption state;The output voltage of the energy storage module is higher than first threshold value, the first voltage monitoring submodule outputs first level signal, the microcontroller receives the first level signal, and the microcontroller works normally. When the power supply voltage of energy storage module is too low by the embodiment provided by the utility model, the microcontroller is adjusted to low power consumption state, when the voltage of energy storage module recovers, the microcontroller resumes work, and the microcontroller is prevented from power failure.

The utility model relates to controller technical field, concretely relates to a kind of whole vehicle controller of electric explosion-proof mine car.The scheme of the present application, signal input unit integration analog quantity, switching value, hard wire wake-up and frequency quantity input module, the analog quantity signal of speed, pressure etc. sensor can be directly compatible, equipment state switching value signal, motor speed frequency quantity signal and vehicle wake-up hard wire signal, without multiple independent acquisition device adapter.This shortens signal transmission path, reduces external interference, improves the accuracy and real-time of data acquisition.OC output module stable output control signal, meet electric explosion-proof mine car drive, brake, steering and other actuator control requirements;Low-voltage power supply module directly for external low-power device power supply, without additional power module.Both avoid the power failure caused by poor compatibility of traditional controller power module, reduce the number of vehicle power components, reduce fault point.

The utility model provides a nursing appliance driving device and electric toothbrush, wherein the nursing appliance driving device comprises a working module, a battery and a control circuit, the working module is electrically connected with the control circuit, the battery is provided with a lead and a first connecting terminal which are connected in sequence, the control circuit is provided with a second connecting terminal, and the second connecting terminal is electrically connected with the working module. The first connecting terminal is used for being electrically connected with the second connecting terminal, so that the battery and the control circuit are electrically connected through the wire, and the problem that an electric nursing product with a replaceable battery is prone to power failure is solved.

The communication method and device adopting the 1-WIRE bus provided by the embodiment of the invention are applied to a host and slave equipment adopting the 1-WIRE bus for communication, and the method comprises the following steps: when the host determines that the slave equipment is about to be powered down according to the conditions of writing 0 and writing 1 in to-be-sent data, adjusting a high level proportion in the to-be-sent data according to a preset rule to obtain target to-be-sent data, and sending the target to-be-sent data to the slave equipment according to the target to-be-sent data; power failure of the slave device is avoided; the host sends the target to-be-sent data to the slave device; and the slave device receives the target to-be-sent data, and recovers the target to-be-sent data to the to-be-sent data according to a preset rule. According to the technical scheme provided by the embodiment of the invention, when the host determines that the slave equipment is about to be powered down according to the conditions of writing 0 and writing 1 in the data to be sent, the high level proportion in the data to be sent is adjusted, so that the slave equipment is prevented from being powered down, and further communication interruption between the host and the slave equipment and state reset of the slave equipment are avoided.

A new energy automobile heat preservation shed relates to the technical field of heat preservation sheds, and adopts the technical scheme that the new energy automobile heat preservation shed comprises a shed body and a temperature control system, the shed body comprises side plates, a bottom plate and a top cover which define a vehicle parking space, and the side plates are provided with door plates for vehicles to enter and exit. The side plates, the door plates, the top cover and the bottom plate all comprise supporting layers and heat preservation layers arranged on one sides of the inner walls of the supporting layers. The temperature control system comprises a controller, a temperature sensor electrically connected with the controller, an electric heating piece and an electric ventilation window, the electric heating piece is arranged on the side, away from the supporting layer, of the heat preservation layer of the side plate, and the electric ventilation window is arranged on the side plate or the top cover. The temperature control system is used for creating a constant-temperature environment for the interior of the shed body, the heat preservation performance of the shed body is enhanced, energy consumption is reduced, new energy automobiles parked in the shed body are in the environment suitable for normal work of battery assemblies, normal charging power is guaranteed, and the power failure phenomenon and the automobile heating link during starting are avoided.

The invention relates to the field of electric power engineering, in particular to an electric power insulation fireproof material technology. The invention relates to an electric insulation fireproof plugging potting adhesive, which comprises an organic silicon base material, a fireproof additive, a high-temperature-resistant filler and an environment-friendly flame retardant, and is doped with a fragment-shaped glass fiber mesh which is used as a filler, the organic silicon base material comprises 107 silicone oil, a cross-linking agent, a silane coupling agent and a catalyst; the glass fiber net comprises a net body and expanded glass fibers; the net body is formed by weaving warp yarns and weft yarns; the warps and the wefts are made of glass fibers; the lengths of at least part of the warps and at least part of the wefts exceed the net body part to form expanded glass fibers. According to the design, a polyurethane modified organic silicon material is adopted, and the characteristics of excellent high temperature resistance, low temperature resistance and chemical corrosion resistance are achieved. And the modified dimethyl vinyl siloxane is also used, so that the flexibility and weather resistance of the material are improved. In addition, the inorganic environment-friendly flame retardant material is also added, so that the safety and the environment-friendly property of the product are ensured.

The present invention relates to a device for detecting wireless charging equipment and a corresponding method, wherein the device adopts a separated main control module and a wireless charging power receiving module, can effectively realize the detection of wireless charging equipment, has the characteristics of high temperature resistance and high voltage resistance, and has a long service life. The main control module in the device controls the device during the detection process, and can more conveniently perform fault analysis on faults occurring during the inspection process. The device for detecting wireless charging equipment and the corresponding method of the present invention have the characteristics of easy operation, high reliability, and long service life, and can well inspect wireless charging equipment.

The utility model discloses a handheld directional sound intensifier with a high sound pressure level and high reliability. The sound intensifier comprises a host (2) and a horn (1), a power supply module (6) is arranged in the host, a player is arranged at the front part of the host, and a microphone (3) is arranged at the rear part of the host; the horn is arranged at the front part of the host and is mounted based on the position of the player; a microphone (31) is arranged in the microphone, a microphone cover (32) is arranged for the microphone, and a sound outlet hole is formed in the bottom surface of the microphone cover; the microphone protrudes out of the host, and the microphone cover is installed on the host and covers the microphone protruding out of the host; and a sound gathering cover (4) is arranged on a microphone cover cap of the microphone. In the sound intensifier provided by the utility model, the sound gathering cover is arranged on the microphone, the sound gathering cover can reflect and gather the sound directly facing the microphone into the area of the end face of the microphone, and the sound transmitted to the microphone from other directions is inhibited, so that the sound pressure level is improved, and howling is inhibited at the same time.

The embodiment of the utility model provides terminal equipment and a transportation tool, the terminal equipment comprises a power supply interface, a first processor and a second processor, the power supply interface is used for being connected with power supply equipment, the first processor is connected with the power supply interface, and the second processor is connected with the power supply interface and the first processor. The power interface is used for accessing a power supply device, the first processor is used for loading a charging protocol driver to request the power supply device to provide a first target voltage when detecting that the power interface accesses the power supply device, and the second processor is used for loading a charging protocol driver to request the power supply device to provide a second target voltage when the power interface receives the first target voltage provided by the power supply device. And starting the operating system. Through the arrangement of the first processor, the time required from the connection of the power supply equipment to the power interface to the completion of the loading of the charging protocol driver can be shortened, negotiation with the power supply equipment can be carried out in time, the phenomenon of power failure is avoided, and the normal operation of the terminal equipment is ensured.

The invention discloses an active power filter control method for preventing resonance, and relates to the technical field of electric energy quality control, and the method comprises the steps: obtaining a sensitive frequency point through a mode of injecting a harmonic current with the frequency being a pre-judged harmonic frequency into a power supply circuit, and comparing the changes of a power grid side current and a load side current before and after injection; according to the method, harmonic components corresponding to sensitive frequency points are separated from harmonic components corresponding to other frequencies, compensation currents are generated respectively, the harmonic components corresponding to the sensitive frequency points are adjusted through feedback coefficients, and then different compensation currents are superposed to obtain a comprehensive compensation current. The load harmonic current is offset by using the comprehensive compensation current, so that the current on the power grid side is ensured to be distortionless; according to the technical scheme, harmonic impedance adjustment can be achieved, harmonic amplification is effectively prevented, passive element burning or power supply faults are avoided, and power supply safety and reliability are enhanced.

The invention provides a current divider of a circuit breaker and the circuit breaker, and the current divider of the circuit breaker comprises a binding post which is provided with a wire plugging end and is provided with a slide way; the expansion conductive part comprises a wiring end and a connector fixedly connected with the wiring end, and the connector is inserted into the slide way to be electrically connected with the binding post; wherein the wire plugging end and the wiring end can be plugged and matched. According to the technical scheme of the invention, the problem that the main switch of the power distribution cabinet needs to be switched off and powered off when the ammeter is installed in the prior art is effectively solved.

The invention discloses an equipment control method and device, electronic equipment, a storage medium and a computer program product. The equipment comprises a security identification module and a heating module. Wherein the security identification module is powered on or powered off by controlling the first power supply, and the second power supply uninterruptedly supplies power to the heating module; the heating module operates in a heating mode under the condition that the temperature in the equipment is detected to be smaller than a set threshold value; the method comprises the following steps: reading a flag value of a set flag bit from a heating module every a first set period; wherein when the set flag bit is the first flag value, the set flag bit is used for marking that the communication state of the CPU of the security identification module is normal, and when the set flag bit is the second flag value, the set flag bit is used for marking that the communication state of the CPU is abnormal; and when the security and protection identification module is in a power-on state and the heating module operates in a heating mode, determining whether to perform power-down processing on the security and protection identification module according to the flag value of the set flag bit read most recently.

The application discloses an Ethernet power supply circuit and a smart mobile device, and relates to the technical field of Ethernet power supply, wherein the Ethernet power supply circuit comprises a network transformer module, which comprises at least two network transformer units; for any network transformer unit, a transformer in the network transformer unit is connected with an Ethernet interface, used for receiving a data signal of a corresponding Ethernet channel in the Ethernet interface and transmitting the data signal to a corresponding load; and the Ethernet power supply circuit further comprises a power switch module, which comprises at least two power switches; for any power switch, the power switch is connected with an intermediate tap of a corresponding network transformer unit, used for outputting a power supply signal to the intermediate tap according to a corresponding control signal, so that the corresponding transformer of the intermediate tap transmits the power supply signal to the corresponding load. The application realizes independent power supply control and fault isolation of each PoE channel, thereby guaranteeing stable starting and normal operation of the overall function of the device.

The utility model relates to the technical field of power supplies, and discloses a self-locking power supply control circuit based on a self-resetting switch, which is connected with an equipment master controller and is used for controlling the on-off between a power supply input end and a power supply output end, and the equipment master controller is connected with the power supply output end and is used for accessing an input signal and generating an output signal. The self-locking power supply control circuit comprises a first MOS switch which is connected between a power supply input end and a power supply output end and is used for outputting an input signal, an NPN switch which is connected with the first MOS switch, the power supply input end, the power supply output end and an equipment master controller so as to access an output signal, and a self-resetting switch which is connected with the power supply output end, the equipment master controller and the first MOS switch. The second MOS switch and the first MOS switch are connected in parallel between the power supply input end and the power supply output end and are connected with the NPN switch; and the third MOS switch is connected with the power supply input end and the NPN switch.

The invention discloses an LDO circuit and a control method, the LDO circuit comprises an LDO module, a voltage following module, a first switching module and a second switching module, the LDO module is used for generating a first voltage based on a reference voltage, the voltage following module is used for carrying out voltage following on the first voltage to generate a second voltage, and the second switching module is used for carrying out voltage following on the second voltage. The first switching module is used for turning on the voltage following module in a normal mode and turning off the voltage following module in a low-power-consumption mode, and the second switching module is used for outputting first voltage in the low-power-consumption mode and outputting second voltage in the normal mode. According to the LDO circuit and the control method, the requirement for stable power supply in a low-power-consumption mode is met through the basic LDO module, the response speed of the circuit in a normal mode is increased through the voltage following module, active mode switching is achieved through the switching modules, and therefore dual-mode power supply is completed.

The present invention discloses an active card terminal and an automatic power-on method thereof, and relates to the technical field of card products. The active card terminal includes a smart card chip, an MCU, a power supply module, a power switch module, a rectifier module, and a switch module; the MCU is electrically connected to the smart card chip; the input end of the power switch module is electrically connected to the output end of the power supply module, the output end of the power switch module is electrically connected to the power end of the smart card chip and the power end of the MCU respectively, the enable end of the power switch module is electrically connected to the first control end of the MCU, the output end of the rectifier module, and the output end of the switch module respectively; the controlled end of the switch module is electrically connected to the second control end of the MCU. According to the active card terminal of the present invention, when the system is in a shutdown state, it can realize automatic power-on when swiping a card to conduct a transaction, thereby facilitating the user's operation, without the need for the user to manually power on, and facilitating the user to check the transaction status.

The invention provides a color changing method and system for an embroidery machine in the technical field of embroidery machines. The method comprises the following steps: S1, arranging four magnetic switches at equal intervals; s2, setting an initial position of a motor, moving a color changing rod by a stroke, and calibrating a rotation angle sensed by a magnetic encoder; s3, the embroidery machine is reset based on the initial position after being powered on, and the color changing rod is driven to move based on the embroidery operation file; s4, detecting a first moving distance of the color changing rod through a magnetic switch in the operation process of the motor, and detecting a second moving distance of the color changing rod through a magnetic encoder so as to calculate a distance error; s5, querying the corresponding relation table based on the distance error to calibrate and compensate the second movement distance; and step S6, when power failure is monitored, switching to a lithium battery for emergency power supply, and rotating the embroidery operation file for multiple circles and storing the embroidery operation file in an EEPROM (Electrically Erasable Programmable Read-Only Memory). The color changing device has the advantages that the color changing accuracy, efficiency and reliability of the embroidery machine are greatly improved, and the quality of embroidery products is improved.

The invention belongs to the field of battery management, and provides a multi-battery charging management method and a multi-battery charging management device, an intelligent channel mode and a forced channel mode are set, the SOC value of a battery in each channel can be monitored in the intelligent channel mode, and each battery pack is controlled to charge and discharge in line by comparing the SOC value with a preset threshold value, so that the charging efficiency is improved. The battery pack controlling the SOC value is charged and discharged preferentially, chaos is avoided, safety is ensured, in addition, the battery pack switching speed is high, and equipment power failure is avoided.

The utility model relates to the technical field of automobile storage batteries, in particular to a storage battery anode fuse box and a vehicle, and aims to solve the problem that when a storage battery is in a charging state, a DC / DC (Direct Current to Direct Current) / power generator bears all load power consumption and battery charging current of the whole vehicle, and the wiring harness cost is increased due to large total fuse passing current. In order to achieve the purpose, the storage battery anode fuse box comprises a box body and a total fuse, a first interface of the total fuse is connected with a first conducting strip, the first conducting strip is fixed on the box body and used for connecting a first power supply load and a first power supply, and a second interface of the total fuse is connected with a second conducting strip which is fixed on the box body and used for connecting a second power supply load and a second power supply. And the second conducting strip is fixed on the box body and is used for connecting a second power supply load and a second power supply. The load of the whole vehicle is separated, and when the first power supply or the second power supply supplies power, only part of current passes through the main fuse, so that the load current of the main fuse is reduced, the low-voltage power supply safety of the whole vehicle is improved, and the cost is reduced.

The invention belongs to the field of electrical insulation detection of power equipment, and discloses a high-voltage cable buffer layer ablation characteristic gas analysis and cable state grading evaluation method and system, which can discover the ablation phenomenon of a cable as soon as possible and avoid potential power failure and potential safety hazards through rapid analysis of gas components. Accurate evaluation can be provided through the relation between the gas composition and concentration and the ablation degree, and making of targeted maintenance and replacement plans is helped. According to the invention, timely monitoring and evaluation can be realized, the accident risk caused by cable faults can be reduced, and the safety and reliability of a power system are enhanced. By discovering problems in advance, power failure and maintenance cost caused by sudden faults are reduced, and therefore the overall economic benefits are improved. The gas analysis data can provide a basis for long-term monitoring and management of the operation state of the cable, and a more scientific maintenance strategy is supported.

The invention relates to the technical field of locomotive thermal control, solves the technical problem that the body feeling is uncomfortable due to the fact that the temperature cannot be adjusted in time when the working condition changes in the prior art, and particularly relates to a locomotive thermal control method based on a multi-connected air conditioner, which comprises the following steps: S1, setting a starting threshold value as Da based on a humidity value Rc of the position of a station, when the motor train unit is about to start, the air conditioner host and the multiple tail ends are started; s2, the temperature in the compartment is collected through the temperature sensors at the tail ends and preprocessed to obtain the actual temperature Qb, the temperature and humidity inside and outside the compartment are monitored through the air conditioner host and the multiple tail ends, the temperature in the compartment is made to be within the comfortable range according to the result of cyclic comparison of the preset threshold value and the actual detection value, and therefore the comfort degree of the compartment is improved. Inaccuracy of temperature detection is avoided, working efficiency of automatic thermal control is improved, manpower resources are saved, and comfort is improved.