51results about How to "Control power supply" patented technology

The invention discloses terminal equipment and a power supply method thereof. The terminal equipment comprises a first battery, a second battery and a battery management unit. The first battery is configured to provide a direct-current power supply with first voltage. The second battery is configured to provide a direct-current power supply with second voltage. The second voltage is larger than the first voltage. The battery management unit is configured to obtain the battery state of the first battery and the battery state of the second battery according to at least two threshold values which are respectively set for the first battery and the second battery. The battery management unit controls power supply of the first battery and the second battery according to the battery state of the first battery and the battery state of the second battery.

The invention relates to a positioning method for transportation means. The method includes the following steps of: 1) first satellite measurement step which further includes an initial positioning distance measuring step and a carrier phase smoothing pseudo-range differential step; 2) extra satellite measurement step: the coordinates of at least four extra satellites and second time point calibration positioning distances corresponding to each extra satellite are obtained according to the first satellite measurement step; and 3) transportation means coordinate determination step: the coordinates of the transportation means at a second time point are obtained according to the coordinates of the satellites and the second time point calibration positioning distances of the satellites which are obtained in the step 1) and the step 2). In addition, the invention discloses a positioning device, a monitoring device and a monitoring system for transportation means. The positioning method, positioning device, monitoring apparatus and monitoring system for transportation means of the invention have the advantages of very high positioning accuracy and powerful functions, and can monitor the driving states of the transportation means in real time, and can give an alarm when an abnormal state appears.

An aerosol-generating system comprising moveable cartridge is disclosed. The aerosol-generating system comprises a housing (12), with an air inlet (14) and an air outlet (16) defining an air flow channel (18), a heater element (24) and a cartridge (10) moveably mounted in the housing (12) and reversibly displaceable from a first position into a second position. The cartridge (10) comprises a liquid storage portion (18) for holding an aerosol-generating liquid and has an opening for delivery of the aerosol-generating liquid, the cartridge further comprises a moveable plunger (28). When an airstream is created between the air inlet (14) and the air outlet (16), the cartridge (10) is moved by the airstream within the housing (12) and the movement of the cartridge (10) activates the release of a portion of the aerosol-generating liquid through the opening of the cartridge (10).

The invention relates to the technical field of electric vehicles, and discloses an electric vehicle low-voltage system control method, device and equipment and a storage medium. In the invention, a key gear state of an electric vehicle can be obtained, and when the key gear state is in an ON gear state, a direct-current converter is controlled to enter a starting state; according to the invention, the state of charge of the storage battery is determined according to the storage battery information, and when the state of charge of the storage battery is less than or equal to the preset state of charge, the direct-current converter is controlled to supply power to the whole vehicle low-voltage system of the electric vehicle, thereby avoiding power shortage of the storage battery and improving the working efficiency of the direct-current controller. And the power supply of the whole vehicle low-voltage system can be effectively controlled by combining the state of the storage battery andthe actual demand of the whole vehicle low-voltage system.

The invention relates to a cross-adjustment rate control circuit and method for a multi-output power, belongs to the technical field of cross-adjustment rate control and aims to solve problems of low efficiency and low main-output voltage accuracy in the prior art. The circuit includes a multi-output power, a coupling inductor L1 and a feedback control circuit, wherein the multi-output power includes an input power Uin, a main output Vo1 and a secondary output Vo2, the coupling inductor L1 is connected between the main output Vo1 and the auxiliary output Vo2 and is used for regulating an output voltage of the main output Vo1 according to an output voltage of the auxiliary output Vo2, the feedback control circuit includes a PI controller and a PWM generator, the PI controller is used for receiving the output voltage of the main output Vo1 as a feedback signal and regulating the PWM generator to output a PWM signal having a corresponding duty ratio and further controlling the input power Uin for supplying power for the multi-output power. The circuit is advantaged in that indirect closed loop control of the secondary output Vo2 is realized, and the output voltage control effect of the secondary output is improved.

The invention discloses a double channel LED driver and a control method therefor. The double channel LED driver comprises a power converter, an output current calculator, an error amplifier, a logic control and drive circuit, a first dimming switch and a second dimming switch. The double channel LED driver receives a first dimming signal and a second dimming signal provided by a wireless control module, adjusts total current of a first channel LED and a second channel LED according to the first dimming signal, and adjusts the dimming ratios of the first channel LED and a second channel LED according to the second dimming signal.

An object of the present invention is to provide an on-demand control system that supplies power to electric devices based on not predetermined priorities fixed to electric devices, but based on priorities changed according to the use status of the user. The on-demand control system can control supply of power of a commercial power source in real time in response to a power request necessary for the user and controls the supply of power according to the QoL necessary for the user through daily life. The on-demand power control system of the present invention is a multiple power source management system for an on-demand power control system, the on-demand power control system including: a plurality of power sources; a plurality of electric devices; smart taps connected to the electric devices; a multiple power source management apparatus that includes a memory and that controls supply of power to the electric devices; and a network for the multiple power source management apparatus connected through the smart taps, wherein the multiple power source management apparatus includes: power supply plan generation means for setting a power use plan of a commercial power source as initial values of a supply plan of a capacitor, searching a time zone with a maximum dissatisfaction among the time zones of the initial values to set the time zone as a time-shift destination, searching a time zone with a minimum dissatisfaction to set the time zone as a time-shift source, and repeating the process until the dissatisfaction of the time-shift destination is smaller than the dissatisfaction of the time-shift source to generate a power supply plan; supply power target value update means for setting a target value of supply power for each of the plurality of power sources and feeding back and updating an error between actual power supply amount and the supply power target value at each minimum control interval; and power and power source arbitration means for repeating a process of selecting a device with a minimum priority among an electric device that has requested power and electric devices in operation, selecting a power source with a maximum power source load factor, reducing or stopping power of the electric device, and reducing supply power of the power source by an amount of the reduced power until the following Expressions (1) and (2) are satisfied, thereby arbitrating the power and the power sources to satisfy Expressions (1) and (2) at the same time.

The present invention discloses a power switch control circuit applied to a patrol robot. The second foot of a control interface P1 of a relay is grounded, the first foot of the control interface P1 of the relay is connected with the first foot of a switch interface P4; and the second foot and the third foot of the switch interface P4 are connected with a diode D3 through a resistor R3, and the fourth foot of the switch interface P4 is connected with a resistor R16 and is connected in series with a diode D4. The circuit is provided with emergency switch, starting switch, software control switch and switch state monitoring functions. The power switch control circuit applied to the patrol robot can normally control the power supply of the patrol robot, can control the on-off of the power supply through the software control port, can set the cut-off time at will, can notify a robot upper computer system of the switching state, and can turn off the power supply of the patrol robot in the emergency condition through the emergency switch so as to reach the purpose of the multiple insurance of the safe management of the robot.

The invention discloses a vehicle-mounted passenger flow analysis terminal. A video shooting device of the analysis terminal sends video information received by the video shooting device to a video analysis processing module after the video information is processed by a video divider connected with the video shooting device; the video analysis processing module can send the processed data information to remote equipment by connecting an external Ethernet interface chip to the Ethernet, and can also send the data information to the remote equipment by a general serial port chip simultaneously; and the video analysis processing module reads switching value input / output circuit state information by a signal switching device and controls the switch-on / off of the whole device. The terminal has the advantages of making the data analysis more accurate and real, improving the management level of the public transportation management department, reducing the complexity of the collection of the passenger flow data and having wider market prospect.

A temperature control system and method are provided. The system includes a first channel, a second channel, a heating element, a DUT chamber, a converter, a first PID controller, and at least one switching regulator. The heating element is disposed downstream of the first and the second channels to heat the first air from the first channel or the second air from the second channel according to an input power so as to provide mixing air with a temperature into the DUT chamber. The converter converts an AC power to a DC power. The first PID controller provides a first input signal according to a first set point and an amount of power consumed by the heating element. The input power is adjusted by the switching regulator to drive the heating element according to the first input signal. Thus, the use of electrical power is more efficient.

The invention discloses a protection method for preventing POE power supply equipment from being overloaded, which can effectively control the power supply process and power supply power of the POE power supply equipment and can manage and control the output of a power supply port in real time. And a reliable mechanism is provided to ensure that the POE power supply equipment is not overloaded andabnormal due to overlarge output power, and the power transmission requirement of the POE power receiving equipment can be met as much as possible within the range of rated output total power.

Disclosed is a light source module. The light source module includes: a board having an electrically-insulated property and a heat-dissipating property; a light emitter including a substrate disposed on the board and multiple light emitting apparatuses disposed on the substrate; an optical structure covering the light emitter and including a lens and an external frame, wherein the lens is disposed on the light emitting apparatuses of the light emitter and the external frame surrounds the external circumferential surface of the substrate; an insulating structure surrounding the external circumferential surface of the external frame of the optical structure; and a housing disposed on the board and covering the external frame of the optical structure and the insulating structure, wherein the housing includes an opening through which light passing the lens of the optical structure may pass. The change in the structure of the module may greatly improve the heat dissipation and watertightness, reduce dimensions, weight, and manufacture cost.

The embodiment of the invention discloses a control method of a smart home control panel, electronic equipment and a storage medium and relates to the field of smart home, the smart home control panelcomprises a standby battery, the method comprises: whether the smart home control panel is in an abnormal power supply state is determined, and the abnormal power supply state refers to a state in which the smart home control panel changes from commercial power to power off; and if the smart home control panel is in the abnormal power supply state, the standby battery is adopted to supply power to the smart home control panel, the smart home control panel operates in a first power consumption state, and the first power consumption is lower than the second power consumption of the smart home control panel when the smart home control panel operates under the normal power supply condition. According to the method, the smart home control panel can be powered by the standby battery when the smart home control panel detects that the smart home control panel is in the abnormal power supply state, the situation that the smart home control panel cannot work due to power failure is avoided, andthe use experience of a user can be improved to a certain extent.

The invention discloses a starting voltage drop control circuit for an electric wheel mine truck. The circuit comprises a start-stop switch, a control system flameout relay, a control system cut-off relay, an engine flameout relay and an engine start relay. The circuit disclosed by the invention can effectively control power supply of the control system and the control system can be normally started.

A processor add-on card is installed on the processor slot of a hot-swappable bus in a hot-swappable manner. The processor add-in card includes: a connection end, which enables the processor add-in card to be inserted into or pulled out of the processor slot of the hot-swappable bus in a hot-swappable manner; a signal switching circuit, connected to the processor add-in card The signal line of the card and the signal line of the heat-swap bus, and the signal switching circuit is electrically connected to the connection end so that the processor add-in card can be heat-swapped; a processor is electrically connected to the signal switching circuit; The power switching circuit controls the power supply of the processor add-on card.

The invention discloses a communication driving circuit for a mining diesel vehicle protection device, and belongs to the technical field of driving circuit design. The system comprises a chip U6 of a MAX3232IDR double-line driver and a receiver, an LCD display screen interface circuit, a 485 communication driving circuit and a CAN bus driving circuit. 485 signals are used for collecting information from the outside, converting the information into TTL signals, transmitting the TTL signals into a mine car mainboard, judging according to designed parameter safety values, transmitting alarm signals into an LCD (liquid crystal display) screen through an RS232 interface, and operating to complete the protection action of the mine diesel car. The chip U6 can convert the level of a logic signal of the single-chip microcomputer into an RS232 level, the LCD display screen interface circuit adopts an IO (input / output) mode to control an MOS (metal oxide semiconductor) tube to supply power to a control display screen, and the 485 communication circuit adopts TTL (transistor-transistor logic) and 485 isolation conversion and is provided with a special power supply. From the perspective of static interference resistance, echo interference suppression, surge voltage prevention and improvement of the communication speed of the driving circuit, the working performance of the mine truck protection circuit is improved.

The invention aims to provide a power supplying control apparatus, a power supplying apparatus, and a power supplying control method which control power supply appropriately. A power supplying apparatus according to the present embodiment is equipped with a plurality of ports corresponding to a USB (Universal Serial Bus) PD (Power Delivery) standard, a plurality of electric power supplying circuits which are provided corresponding to the ports and supply power to power receiving devices coupled to the ports, and a controller which holds a table of power profiles to which power receiving capabilities for each power receiving device are set, and controls the electric power supplying circuits, based on the table in such a manner that total supply power supplied from the electric power supplying circuits does not exceed a prescribed value.

The invention discloses a fully-automatic insulated oil dielectric strength tester. The fully-automatic insulated oil dielectric strength tester comprises a control device, a flow monitoring device, astart-up device, an A / D converter, an oil injection device, a cleaning device, a boost control device, a stirring and still-standing device and an oil discharge device, the control device is connected with the start-up device and the A / D converter, the start-up device is connected with the flow monitoring device, the flow monitoring device is connected with the oil injection device, the oil injection device, the cleaning device, the boost control device, the stirring and still-standing device and the oil discharge device are connected in sequence, and the A / D converter is connected with the stirring and still-standing device. The fully-automatic insulated oil dielectric strength tester has the advantages that fully-automatic oil injection and discharge are achieved, and interference of human factors is avoided in the whole process.

The invention discloses a frequency converter low voltage ride through power supply control system, which comprises a power supply module, an execution module and a monitoring module, wherein when themonitoring module detects that the variable-frequency direct-current bus voltage of the frequency converter is lower than a low-voltage ride-through voltage threshold value, the monitoring module controls the execution module to be connected with a circuit in connection with the variable-frequency direct-current bus, and the power supply module is used for conducting direct-current power supply on the variable-frequency direct-current bus through the execution module; when the monitoring module detects that the voltage of the variable-frequency direct-current bus is not lower than a low-voltage ride through voltage threshold value, the monitoring module controls the execution module to be disconnected with the circuit in connection with the variable-frequency direct-current bus, and the power supply module stops direct-current power supply to the variable-frequency direct-current bus; the power supply module comprises a storage battery set for conducting direct-current power supply onthe variable-frequency direct-current bus and a charging unit for charging the storage battery pack; the charging unit charges the storage battery pack through a first positive pole bus and a first negative pole bus corresponding to the first positive pole bus; and the charging unit is provided with a floating charging function.

The invention relates to a method for actuating at least one switching component (33) by means of an actuating component (44) belonging to a power module (40), comprising: receiving at least one set of parameters by means of the actuating component (44) in order to calculate at least one actuating rule of the switching component (33), performing at least one operation is by the at least one control member (44) based on each set of parameters to obtain at least one control rule, and sending each obtained control rule by the control member (44) to the switching member (33).

The invention relates to a dust removal platform based on dust concentration detection, and the platform comprises dust analysis equipment which is disposed in a play room and is used for analyzing the on-site dust concentration in the play room, so as to obtain and output the corresponding on-site dust concentration; automatic dust removal equipment which is connected with the dust analysis equipment and is used for receiving the field dust concentration and executing automatic dust removal operation to reduce the field dust concentration in the playing room when the field dust concentrationis greater than or equal to a preset dust concentration threshold value; image snapshot equipment which is arranged in the playing chamber and is used for carrying out image snapshot processing on thefilm currently played in the playing chamber at a preset time interval so as to obtain each field snapshot image and output each field snapshot image; wherein in the image snapshot device, the presettime interval is in direct proportion to the playing speed of a currently played film in a playing room. According to the platform, the intelligent level of the on-site equipment of the playing roomis improved.

The invention provides a gluteus activating instrument. The gluteus activating instrument comprises a master controller which is arranged to adopt a square housing, wherein a display screen and buttons are arranged on the outer surface of the housing; a microprocessor and a power source are arranged in the housing; the side surface of the housing is connected with an electrode piece through an electrode column; the electrode piece is in contact with the gluteus of a human body; the power source is connected with the microprocessor, the display screen, the buttons and the electrode pieces; a trigger switch is connected between the power source and the electrode piece, and is located at the planta pedis of the human body; the trigger switch is driven by the human body walking state to be switched on and off to be used for controlling the operating state of the electrode piece; and the microprocessor is connected with the display screen, the buttons and the electrode pieces. According tothe gluteus activating instrument disclosed by the invention, the electrode piece is adhered to the gluteus of the human body through a paster layer; the electrode piece is connected with the power source through the trigger switch; the trigger switch is placed at the planta pedis of the human body; the switching on and the switching off of the trigger switch are driven by the walking state of foot, and the power supply of the electrode piece is controlled, so that the electricity stimulation of the gluteus of the human body is realized, the situation of gluteus laxity of sedentariness crowdsis improved, and the health problems of the human body caused by the long-term gluteus laxity are solved.

The invention provides a heating system for low-temperature heating of electronic equipment. The heating system comprises a temperature detection module, heating control modules and heating elements;the temperature detection module is used for detecting the temperature of the electronic equipment; at least two sets of heating control modules are provided; each set of heating control module comprises a temperature comparison circuit and a DC-DC power supply control circuit; the output end of the temperature comparison circuit is connected with the enabling end of the DC-DC power supply controlcircuit; the temperature comparison circuits have different temperature setting thresholds; and the output end of each DC-DC power supply control circuit is connected with one set of heating element,and when the DC-DC power supply control circuit is switched on, the heating element obtains power supply and is in a heating working state to heat the electronic equipment.

The invention belongs to the technical field of infrared physiotherapy, and discloses a multi-dimensional variable-frequency resonance infrared physiotherapy system, which is provided with a control unit used for achieving startup and shutdown management and temperature, time and frequency setting of a light wave thermal therapy oxygen cabin, and the purpose of automatically controlling the temperature of the light wave thermal therapy oxygen cabin is achieved by collecting the temperature of a light wave room, comparing the temperature with the set temperature and automatically adjusting theoutput pulse width;and a power control unit is connected with the control unit through external connectors CB1 and CB2, and is used for converting the alternating current into a high-voltage direct current power supply and a low-voltage direct current power supply, converting a pulse signal output by the control unit at a set frequency into a high-voltage pulse voltage and supplying the high-voltage pulse voltage to the graphene module power supply, so that the graphene generates corresponding infrared waves in the light wave thermal therapy oxygen cabin, and the air freshening auxiliary circuit is controlled. The temperature in the light wave and light wave thermal therapy oxygen cabin is collected in real time through a temperature sensor, the output pulse width is controlled through thePWN and a frequency modulation technology, the stable temperature is achieved, and therefore electricity is saved.

The invention provides a foldable electric vehicle. The electric bicycle comprises a bicycle front body, a bicycle frame, a saddle, a power supply, a group of wheels and a driving motor, wherein the bicycle front body is pivotally arranged on the bicycle frame, the saddle is arranged on the bicycle frame, the wheels are respectively arranged on the bicycle front body and the bicycle frame, the power supply is electrically connected with the driving motor, and the driving motor is connected with at least one wheel so as to drive the wheels to rotate.