39results about How to "Reduce power supply time" patented technology

The invention discloses a disaster area power grid state monitoring method. Through a monitoring device at a power grind on-line monitoring end, power grid equipment state parameters are collected, an intelligent processor of the power grind on-line monitoring end processes monitoring data and obtains the damage situation of power grid key equipment, and the damage situation of the power grid key equipment, position information and time information are reported to a power grid monitoring center in real time through a plough short message communication system. Quick and effective monitoring of the power grid state in a disaster area after natural disasters happen can be achieved, the time for disaster area power recovering can be greatly shortened, and economic loss and casualties caused by the natural disasters can be well reduced.

The invention relates to an electric furnace burden process with high efficiency and low cost. Main raw materials are molten iron accounting for 30-60 percent of metal adding amount, excellent scrap steel accounting for 5-10 percent of metal adding amount and low-lost scrap steel accounting for 30-35 percent of metal adding amount; auxiliary materials are lime and soft burning dolomite, wherein 3.0-3.5 percent of lime and 1.0-1.5 percent of soft burning dolomite are respectively added in each ton of molten steel; and through optimizing electric furnace slag discharge operation, using an oxygenlance and adopting power supply oxygen blowing control and other smelting processes, the electric furnace burden process greatly improves simultaneous hit rate of terminal point components and the temperature of an electric arc furnace, realizes the aims of improving the quality of the molten steel, shortening the smelting period and reducing the consumption and significantly reduces the full oxygen content of steel products at the same time. The electric furnace burden process has good application prospect for ensuring the quality of steel and reducing the production cost.

A heater control unit controls electric power supplied to a heater provided in a seat. The heater control unit includes an outside air temperature measuring portion that measures an outside air temperature, a seat surface temperature measuring portion that measures a surface temperature of the seat, and a control portion. The control portion controls a time for which an initial electric power larger than an electric power in a steady state after the initial state is output to the heater, according to the measured outside air temperature and the measured seat surface temperature in an initial state immediately after the heater is activated.

The invention provides an energy-saving power supply device for an automobile. The energy-saving power supply device comprises an automotive generator, a generator controller and a main battery, wherein the generator controller detects the voltage level state of the main battery, automatically controls the automotive generator to charge the main battery when the voltage of the main battery is in a low state, and controls the automotive generator to unload when the power of the main battery is full, so that fuel is saved, the overcharge of the main battery is avoided, and the life of the battery is prolonged. The energy-saving power supply device is additionally provided with a standby power supply, and then, an auxiliary battery can be used for supplying power to start up the automobile when the power of the main battery is used up because an automobile user forgets to turn off headlights or overuses electrical equipment on the automobile without starting up an engine. Moreover, the energy-saving power supply device is provided with a solar charging assembly which is connected with the main battery and is used for charging the main battery, so that the main battery can be kept in a full-power state; and the power supplying time of the automotive generator is reduced by using the solar energy for power supply, so that the unload time of the automotive generator can be longer, the thrust to the generator caused by the engine is reduced, and the fuel consumption is saved.

The invention relates to a system and method for regulating advertising lighting based on railway tunnel piston wind, the system comprises a power supply module, a weak current control module, a strong current circuit module and a wind pressure sensor, and the strong current circuit module comprises advertising lighting equipment; the power supply module comprises a wind power generation device, an AC-DC converting circuit and a storage battery, and the storage battery supplies power to the wind pressure sensor and the weak current control module; the wind pressure sensor is connected with the weak current control module so as to convert a wind pressure signal generated by the piston wind to an electrical signal and transmit to the weak current control module; the weak current control module is connected with the strong current circuit module, and the weak current control module controls on / off of the strong current circuit module according to the received electrical signal of the wind pressure sensor. According to the invention, ineffective power supply of the advertising lighting equipment can be greatly reduced through the piston wind generated in the tunnel, a practical test shows that about 90% power supply time of the advertising lighting equipment can be reduced, and the power supply can be greatly saved.

The invention discloses a method for treating chromium-containing wastewater by using a continuous pulse electrocoagulation technology. The method comprises the steps of: firstly adjusting the wastewater to have the pH of 3-7 and the conductivity of 500-3,000 us / cm; then carrying out continuous electrocoagulation treatment, wherein the feeding rate is 10-20 ml / min, a pulse power supply is used for controlling the output current density to be 2-10 mA / cm<2>, and the pole plate spacing is 1-3.5 cm; and sampling at set intervals and carrying out centrifugation, wherein the time for centrifugation is 5-10 min, and the time for electrolysis is 60-180 min. The method has the advantages that the diffusion of ions in a matrix solution is good due to the intermittent power supply mode of a pulse power supply, the mass transfer effect is improved, and the concentration polarization is alleviated, thus the disadvantages of poor treatment effect and power waste caused by electrode passivation are overcome to a great extent. Meanwhile, due to a continuous treatment manner, the wastewater treatment capacity is increased, and the complexity of the electrode cleaning work after electrolysis is reduced.

The invention discloses an automobile engine exhaust system, which comprises an exhaust pipe and a thermoelectric power generation device arranged on the exhaust pipe, wherein the thermoelectric power generation device comprises a thermoelectric power generation heat collection module and a thermoelectric power generation module connected with one end of the thermoelectric power generation heat collection module; the thermoelectric heat collection module comprises a heat collection piece arranged inside the exhaust pipe for being contacted with exhaust gas for absorbing the heat; and the thermoelectric power generation module comprises a thermoelectric element for using the temperature difference for power generation. According to the automobile engine exhaust system, through additionally arranging the thermoelectric power generation device, heat of the exhaust gas exhausted in the exhaust pipe is reused for power generation, the power supply time for a battery, a lighting and signal system, an instrument and a display system by the engine can be reduced, and the fuel consumption of the overall automobile can be reduced.

To prevent an increase in the temperature of an X-ray detector while avoiding an increase in the size of the X-ray detector resulting from a cooling unit being attached thereto, provided is an X-ray diagnostic system which has an X-ray irradiation means for applying X-rays; an X-ray detector for detecting X-rays having passed through a subject to output image data; and a controller for controlling the X-ray irradiation means and the X-ray detector. The X-ray diagnostic system is adapted to include an exposure preparation state detection means for detecting the state of exposure preparation for taking an X-ray radiograph of the subject; and a power switching section for turning on a power supply for the X-ray detector or turning off the activated power supply in response to a detected result provided by the exposure preparation state detection means.

The invention relates to a face identification based mobile payment device with a split-screen display function, which comprises a main body, a driving pipe, a camera and two watch straps. A display mechanism and a power supply mechanism are arranged in a notch; the display mechanism comprises a telescopic component, a connection plate, a first display screen and two display components; the telescopic component comprises a fixed block, a moving block, a telescopic unit, a telescopic frame, a sliding rod and a sliding ring; each display component comprises a hinging unit, a second display screen and a direction regulation unit; and the power supply mechanism comprises a storage battery, a conducting rod and two conducting components. According to the face identification based mobile paymentdevice with the split-screen display function, the second display screen is rotated to a position in parallel to the first display screen by the display mechanism so as to enlarge a display area andfacilitate scanning payment of a code scanner, but not only that, electric energy for equipment operation is provided by utilizing the power supply mechanism when equipment carries out payment, so asto greatly reduce power supply time of the storage battery, thereby reinforcing endurance of the equipment.

The invention discloses a transmission line malfunction monitoring auxiliary device, comprising an electrical signal acquisition circuit, a phase conversion circuit, an alternating-direct current conversion circuit and a comparison output circuit which are electrically connected in sequence, wherein the electrical signal acquisition circuit is used for collecting a secondary phase current and a secondary phase voltage; the phase conversion circuit is used for performing phase conversion on the collected secondary phase current to obtain a first voltage vector U after phase conversion, and performing reduction voltage on the collected corresponding secondary phase voltage to obtain a second voltage vector U' after reduction voltage; the alternating-direct current conversion circuit is used for performing rectification on a vector U+U' and a vector U-U' to respectively obtain a first direct current voltage U2 and a second direct current voltage U3; the comparison output circuit is used for comparing the first direct current voltage U2 and the second direct current voltage U3, and outputting an electric signal to an external monitoring terminal according to a comparative result. On basis of the original protection device, according to the scheme, the time for recovering the power supply of regions without malfunction is effectively shortened, and the malfunction scope is effectively shrunk.

A power supply method and a power supply apparatus including a power conversion circuit, a first and a second switching circuit, and a control circuit are provided. The power conversion circuit is coupled between a DC power source and a power supply terminal and performs a boosting operation according to a DC voltage of the DC power source to generate a boost voltage. The first switching circuit is coupled between an AC power source and the power supply terminal. The second switching circuit is coupled between the power conversion circuit and the power supply terminal. The control circuit enters a first mode after turning on the first and the second switching circuit, so the first switching circuit transmits a main AC voltage of the AC power source to the power supply terminal in the first mode. The boost voltage is greater than a peak value of the main AC voltage.

The invention relates to an intelligent door lock having an automatic reset function and high endurance capability. The intelligent door lock comprises: a handle, a fingerprint window, a touch screenand a sliding cover are arranged on the front face of a main body, a battery box, a cross bar, a trigger component, two conductive blocks and two conductive components are arranged in the main body, the trigger component comprises a convex rod, a trigger plate, a trigger unit, a moving plate, a vertical rod and a convex plate, and the trigger unit comprises a first cylinder, a first piston, a second cylinder, a second piston, a gas pipe and two reset units. According to the intelligent door lock having the automatic reset function and high endurance capability, the sliding cover is moved upward, so that the conductive components are in contact with the conductive blocks, a dry battery in the battery box supplies power to the touch screen and the fingerprint window, thereby shortening the power supply time and improving the endurance capability of the device. Furthermore, after the handle is rotated, the convex rod causes the convex plate to drive the moving plate to move downward through the trigger component, and then the sliding cover automatically resets via a sliding component to protect the touch screen and the fingerprint window, so that the practicability of the device is improved.

The invention discloses an electromagnetic inertial energy power machine. The electromagnetic inertial energy power machine comprises a flywheel (1), a hollow fixed shaft (2), an inner stator (3), a rotor (4) and an outer rotor (5), wherein a magnetic isolator (6) is arranged on the hollow fixed shaft (2); an axial inner fixed magnetic ring (61) is arranged at the outer end surface of the magneticisolator (6); an axial inner moving magnetic ring (42) is arranged at the inner wall of a rotor end cover (41) of the rotor (4) and corresponds to the axial inner fixed magnetic ring (61); the polarities of the corresponding surfaces of the axial inner fixed magnetic ring (61) and the axial inner moving magnetic ring (42) are the same; the axial distance of a magnetic ring air gap (71) between the axial inner fixed magnetic ring (61) and the axial inner moving magnetic ring (42) is gradually increased along the rotation direction of the rotor (4). The electromagnetic inertial energy power machine has the advantage that by adopting the special structure that the air gap at the back end of a magnetic field is smaller than the air gap at the front end, the dynamic magnetic repulsion force atthe back end is greater than the dynamic magnetic repulsion force at the front end along the rotation direction, so as to maintain and accelerate the rotation of the rotor.

The invention relates to a complementary method for handling a fault in a distribution network based on dual cable power supply. An analysis is conducted for a dual cable power supply distribution network to obtain a solving strategy for differential fault handling. To ensure, as for dual cable power supply, the dual power supply property of users after non-fault recovery is to avoid failure in fault positioning of a distribution network due to false alarm phenomena of dual cable faults, to shield false alarm signals that cannot be confirmed by expanding the scope of isolation and to include a faulty region in the scope of isolation. The invention considers the adaptability of fault handling functions of the dual cable power supply distribution network at this stage, the impact of the trend for special operating modes on a general fault handling logic algorithm, and the general fault handling logic flaws, and ensures wide adaptability and practicability of fault handling of the distribution network, thereby improving the fault handling reliability of the distribution network, shortening the power supply time and providing customer satisfaction.

The invention discloses a 110 kV voltage class pentagonal wiring hydropower station black-start test system and method, wherein the110 kV system is of a pentagonal wiring structure; after power loss of a sending-out line is simulated, a 400V factory bus power supply incoming line switch of a black-start test unit is disconnected, a standby power supply automatic switching system automatically switches on an interconnection switch, the 400V factory bus power supply of the black-start test unit recovers power supply, a diesel generating set is started, voltage is built to rated voltage, the 400Vinterconnection switch is disconnected, and the diesel generator supplies power to recover the plant load of the black-start test unit. A hydraulic turbine set is started, the generator with a main transformer is boosted to rated voltage from zero, an outlet switch of the diesel generator is switched off, a station service power supply switch is switched on, self power supply of the hydraulic turbine generator is recovered by a 400V station service bus power supply, a network switch is combined, power supply of a power transmission line is recovered, and connection to other lines in a grid-connected manner in the same period is realized; the safety of the black-start test of the hydropower station is improved, and the novel black-start test system and method are provided.

The present invention relates to a fluid heating apparatus, comprising: a housing having an upper outlet formed on the upper surface thereof, a lower outlet formed on the lower surface thereof, and at least one inlet formed on one side thereof; and a heating unit installed inside the housing and generating heat by receiving power from the outside. According to the present invention as described above, since a time for heating a fluid is remarkably shortened, the fluid can be heated more quickly to a desired temperature, and thus, power consumption can be significantly reduced.

The invention relates to a safe and stable intelligent door lock adopting two power supplies and having a switching function. The safe and stable intelligent door lock comprises a main body; a handle,a rotating shaft, a clamping plate, a fingerprint window and a touch screen are arranged on the front surface of the main body; a gear, a movable plate, a movement mechanism and two power supply mechanisms are arranged in the main body; each power supply mechanism comprises a battery box, a translation plate, a connecting assembly, two electric conducting rods and two electric conduction assemblies; and the movement mechanism comprises a frame, a movable plate, two sliding plates and two fixing assemblies. When the safe and stable intelligent door lock adopting the dual power supply and having the switching function is in use, any one power supply mechanism can be selected by the clamping plate via the movement mechanism to supply power to a touch screen and a fingerprint window, so thatsufficient energy is provided when equipment is required to be used, an owner is prevented from being locked in a room, and the operation is more convenient. In addition, after the handle is rotated,power supply assemblies can automatically cut off the power of the touch screen and the fingerprint window, so that the power-on time is shortened, the cruising power is strengthened, and the practicability of the equipment is improved.

The invention discloses a driving structure of a medicine infusion device, which comprises a driving unit and a driving wheel, and the driving unit moves in the driving direction to drive the driving wheel to rotate; the linear driver is electrically connected with the driving unit, and the powered linear driver can pull the driving unit to move in the driving direction; the switch unit group comprises a first driving unit and a second driving unit, and the first switch unit is electrically connected with the linear driver; the power supply, the switch unit group and the linear driver are electrically connected to form a power supply circuit for supplying power to the linear driver; when the linear driver is powered, the driving unit performs driving and can trigger a first signal representing that the linear driver arrives at the end point of the driving direction, and the first switch unit is disconnected after receiving the first signal so as to cut off power supply to the linear driver; the program unit comprises a timer electrically connected with the second switch unit, the timer controls the power supply circuit to be disconnected through the second switch unit, and the power consumption of the infusion device is reduced.

The invention discloses a voltage amplitude-based fast and accurate fault classification system of a high-voltage transmission line. The system includes a voltage collection module, a voltage processing module and a fault classification module. The voltage collection module is mounted on the high-voltage transmission line, and is connected with the voltage processing module through a noninterference line. The voltage processing module is connected with the fault classification module through a noninterference line. The voltage processing module includes a voltage filtering module and a voltageintercepting module. The voltage amplitude-based fast and accurate fault classification system of the high-voltage transmission line provided by the invention has the advantages that when the high-voltage transmission line fails, fast fault classification can be simply realized through collected three-phase fault voltage signal amplitude and simple filtering and intercepting without the need forfeature extraction of any feature extraction algorithm on fault information, fast elimination of a fault is facilitated, power supply recovery time is saved, and safe, stable and economic running of apower network is technically guaranteed.

A heater control unit controls electric power supplied to a heater provided in a seat. The heater control unit includes an outside air temperature measuring portion that measures an outside air temperature, a seat surface temperature measuring portion that measures a surface temperature of the seat, and a control portion. The control portion controls a time for which an initial electric power larger than an electric power in a steady state after the initial state is output to the heater, according to the measured outside air temperature and the measured seat surface temperature in an initial state immediately after the heater is activated.

The invention relates to an energy-saving parking space indication method in the field of road traffic and intelligent traffic. According to the energy-saving parking space indication method, a devicecomprises a red light position electromagnet, a green light position electromagnet, a rack with a limiting notch, a reflective ball with a reflective film and a coaxial gear, a pin and the like, wherein red and green reflective films are respectively adhered to two hemisphere regions on the surface of the reflective ball. When an idle state of the parking space is changed, an external parking space detection system energizes the traffic light electromagnet to attract the rack to move, drives the reflective ball and the coaxial gear to rotate, drives the reflective ball to rotate synchronously, enables the hemispherical surface with the reflective film in the corresponding color to face vehicles coming and going, generates reflection by means of garage illumination and illumination of headlamp light of the vehicles coming and going, and shows different colors to indicate whether the parking space is idle or not. Compared with an existing parking space indicating method adopting continuous power supply, power supply is not needed in most of the whole day, the parking space state is indicated through passive light reflection of ambient light, the electromagnet is energized only at the moment when a vehicle enters and exits the parking space, the reflective ball is triggered to rotate to change display, and electric energy loss can be greatly reduced.

Provided is an electromagnetic clutch capable of shortening, even in a low temperature atmosphere, the fuse reaction time from when a rotating shaft is locked, while preventing or suppressing malfunction of the thermal fuse. An electromagnetic clutch 1 is equipped with a rotor 2, an armature 3, an electromagnetic coil unit 4, a thermal fuse 5, and a thermally actuated switch 6. The thermally actuated switch 6 is connected in series to an electromagnetic coil 41 of the electromagnetic coil unit 4 along with the thermal fuse 5. When a temperature of the thermally actuated switch 6 exceeds a switching temperature (predetermined temperature) Ts, the thermally actuated switch 6 is displaced in an electric power supply OFF direction, and thereafter, it is displaced in an electric power supply ON direction due to a reduction in temperature. The thermally actuated switch 6 turns ON / OFF the electric power supply to the electromagnetic coil 41 such that the thermal fuse vicinity temperature T1 does not exceed the operational temperature Tf of the thermal fuse 5 due to self-heating of the electromagnetic coil 41 itself generated by the electric power supplied to the electromagnetic coil 41, thereby preventing malfunction of the thermal fuse 5 due to self-heating of the electromagnetic coil 41.

The invention discloses a method for treating phenol wastewater by using an intermittent pulse electrocoagulation technology. The method comprises the steps of: firstly adjusting the phenol wastewater to have the pH of 4-7 and the conductivity of 500-2,000 us / cm; then carrying out electrocoagulation treatment, wherein a single-pulse power supply is used for controlling the output current density to be 2-15 mA / cm<2>, the pole plate spacing is 0.5-3 cm, the electrolysis time is 15-60 min, and the static settling time is 30-45 min; and carrying out centrifugation for 5-15 min after the reaction is completed. The method has the advantages that the diffusion of ions in a matrix solution is good due to the intermittent power supply mode of a pulse power supply, the mass transfer effect is improved, and the concentration polarization is alleviated, thus the disadvantages of poor treatment effect and power waste caused by electrode passivation are overcome to a great extent. Meanwhile, compared with direct-current power supply electrocoagulation, the pulse electrocoagulation has the advantages that the power supplying time is reduced, and the energy consumption is reduced.

The invention provides an underwater glider course angle robust adaptive control method based on an event trigger strategy, which is characterized in that a roll angle is regarded as virtual control, a differential rudder angle is regarded as actual control input, and a controller is designed based on a fourth-order nonlinear model and a backstepping method. Firstly, an underwater glider course angle tracking error is calculated, and a virtual control law of a roll angle is designed; secondly, a roll angle tracking error is calculated based on the virtual control law and the current underwater glider roll angle, and differential rudder angle control command input is obtained; in order to reduce the action frequency of the actuator, a relative threshold event triggering condition is designed, and a command signal is transmitted to the steering engine only when the triggering condition is met to supply power to the steering engine. Meanwhile, a robust adaptive damping item is designed to calm an uncertain item of the model and external disturbance. From a simulation result, the system can better track an expected signal, the action frequency of the steering engine is obviously reduced, the control times are effectively reduced, and the energy consumption of the course control system is saved.

The invention relates to a safe and stable intelligent door lock adopting two power supplies and having a switching function. The safe and stable intelligent door lock comprises a main body; a handle,a rotating shaft, a clamping plate, a fingerprint window and a touch screen are arranged on the front surface of the main body; a gear, a movable plate, a movement mechanism and two power supply mechanisms are arranged in the main body; each power supply mechanism comprises a battery box, a translation plate, a connecting assembly, two electric conducting rods and two electric conduction assemblies; and the movement mechanism comprises a frame, a movable plate, two sliding plates and two fixing assemblies. When the safe and stable intelligent door lock adopting the dual power supply and having the switching function is in use, any one power supply mechanism can be selected by the clamping plate via the movement mechanism to supply power to a touch screen and a fingerprint window, so thatsufficient energy is provided when equipment is required to be used, an owner is prevented from being locked in a room, and the operation is more convenient. In addition, after the handle is rotated,power supply assemblies can automatically cut off the power of the touch screen and the fingerprint window, so that the power-on time is shortened, the cruising power is strengthened, and the practicability of the equipment is improved.

The invention relates to a single power supply ring network-based fault processing and supplementing method. Analysis is carried out in view of a single power supply ring network, a solution strategy for differential fault processing is obtained, the key point of the differential fault processing strategy under a single power supply ring network operation mode is that during a power supply restoration process, when downstream restoration is dynamically calculated, a new power supply appearing along with closing operation of a trip switch is detected. The adaptability of the single power supply ring network fault processing function in the current stage is considered, influences on a common fault processing logic algorithm by a trend for a special operation mode and defects of the common fault processing logic are also considered, the single power supply ring network-based fault processing and supplementing technology is obtained through comprehensive consideration, and thus, the distribution network fault processing reliability is improved, the power supply time is shortened, and the user satisfaction degree is provided.

The invention discloses a method for treating active scarlet BES (Biological Electrochemical System) dye wastewater by using an intermittent pulsed current electric flocculation technology. The method comprises the following steps of: firstly, adjusting the pH value of the wastewater to 3-7 and the conductivity to 700-3000us / cm; then, carrying out electric flocculation treatment; controlling the output current density at 3.5-18mA / cm<2>, the polar plate distance at 0.4-4cm, the electrolysis time at 30-40min and the sediment time at 30-35min by using a pulsed power supply; and carrying out centrifugal treatment after the reaction is ended, wherein the centrifuging time is 8-15min. The method has the advantages that the intermittent power supply mode of the pulsed power supply is as follows: connection-disconnection-connection; and ions on the surface of a pole under the mode are well diffused during disconnection, the mass transfer effect is improved, the concentration polarization is relieved, and furthermore, the defects of poor treatment effect and electricity energy waste caused by pole passivation are overcome to a great extent.

The invention discloses a hydraulic support and an electro-hydraulic control system thereof. The system comprises a monitoring host, a power module, a controller and an electromagnetic valve driver. The power module is used for providing electric energy for the system, monitoring power utilization information of all loads in the system and sending the power utilization information to the monitoring host. The monitoring host is used for generating and issuing a corresponding first control instruction to the power module when the power utilization information provided by the power module contains current overload information so that the power module can control currents of the corresponding loads, and generating and issuing corresponding decision control instructions to the controller and the electromagnetic valve driver according to state information provided by the controller and / or the electromagnetic valve driver. The controller and the electromagnetic valve driver are both used for executing corresponding energy-saving measures according to the received corresponding decision control instructions. Thus, the system can improve the safety performance of a power source, shorten the power supply time of the power source and prolong the service life of a battery.