66results about How to "Solve power loss" patented technology

The invention provides an optical orthogonal frequency division multiplexing (OFDM) dynamic allocation-based passive access network system and a method thereof. In the system, multiple carriers generated by an optical multi-carrier generating unit included in a signal sending unit are input to an OFDM generating unit and then transmitted to a link unit, and signals are subjected to polarization multiplexing, fiber channel transmission and polarization demultiplexing in the link unit; and a signal matching and receiving unit acquires radio-frequency signals carrying information by using a signal detection module, and the information required by a user is demodulated through a signal demodulation processing unit. Dynamic subcarrier allocation of optical OFDM access can be realized by adopting the method and the system, wherein the sequential watermarking detection algorithm (SWDA) adopted by the system can dynamically adjust the distribution of each subcarrier in OFDM symbols, and an optimized access network under a low-complexity frame protocol is realized.

The present invention discloses a function indication method, device and system, wherein the function indication method comprises the steps of sending an instruction carried in a channel or a signal to a UE, wherein the UE needs to receive the channel or the signal when accessing a network initially and before receiving the physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH) data, the instruction is used to indicate whether the network support a preset function, and the PDSCH data comprises the PDSCH data of a system parameter of a broadcast carrying the UE and the PDSCH data carrying an unicast service. According to the present invention, the problem of covering and enhancing the unnecessary power loss of a machine type communication (MTC) UE is solved, thereby avoiding the excessive power loss of the MTC UE.

The invention discloses an intelligent vehicle-mounted system based on a mobile terminal. The mobile terminal and the vehicle-mounted system are included; the mobile terminal is electronic equipment with an NFC function; and the vehicle-mounted system is provided with an NFC module corresponding to the mobile terminal, an NFC communication request emitted by the mobile terminal is verified and parsed, and a corresponding control instruction is emitted via a preset threshold of the NFC module. According to the invention, the mobile terminal carried by a user is used to replace a traditional vehicle key; and compared with the vehicle key, the mobile terminal is higher in the encryption performance.

The invention relates to the field of new energy vehicle charging systems, in particular to an under-voltage preventing system and method of a new energy vehicle low-voltage storage battery. The system comprises a battery management system, a vehicle controller, a DC-DC converter, a low-voltage storage battery and a power battery, and is characterized in that the battery management system starts the DC-DC converter to supply power to the low-voltage storage battery when the power battery is in a quick-charging state. When the new energy vehicle enters the quick-charging state, the low-voltagestorage battery cannot be charged, the under-voltage of the low-voltage storage battery is caused due to the continuous power consumption of the battery management system and other low-voltage loads,and finally the vehicle cannot be normally started. After it is detected that the power battery enters the quick-charging state, the low-voltage storage battery is charged by turning on the DC-DC converter, on one hand, the under-voltage problem of the low-voltage storage battery is solved, and on the other hand, the under-voltage preventing system can adapt to charging piles of different brands since no auxiliary power supply is needed.

The invention discloses a novel electronic cigarette control chip. The novel electronic cigarette control chip is characterized in that a capacitance type chip head device is connected with a chip head capacitance detecting device through a constant current generation circuit and the chip head capacitance detecting device is connected with a drive and control circuit device. According to the novel electronic cigarette control chip, sensitivity and reliability of the electronic cigarette chip are effectively improved so that smog can be generated by an electronic cigarette under small sucking force and the phenomenon of smoking caused by spurious triggering is avoided. A series of problems that heat emission of the electronic cigarette is excessive, a plastic outer shell of the electronic cigarette is molten due to burning, the service life of the electronic cigarette is shortened, and a passing rate is low because of smoking operation through continuous spurious triggering for a long time of an existing electronic cigarette chip are effectively solved.

The invention discloses a method for carrying out client identification module card switching, which comprises the steps of: establishing a Bluetooth connection between first mobile communication equipment and second mobile communication equipment and carrying out data transmission based on the Bluetooth connection; when detecting that a Bluetooth connection state of the first mobile communication equipment and the second mobile communication equipment accords with a preset condition and / or a physical distance of the first mobile communication equipment and the second mobile communication equipment accords with a preset distance, based on client identification module card information in the first mobile communication equipment, starting a client identification module card of the second mobile communication equipment; and closing a wireless communication function in the first mobile communication equipment, which is based on a client identification module card of the first mobile communication equipment, and starting a wireless communication function in the second mobile communication equipment, which is based on the client identification module card of the second mobile communication equipment. Moreover, the invention further provides mobile communication equipment. According to the invention, whether a Bluetooth connection relationship or a physical distance among a plurality of pieces of mobile communication equipment accords with the preset condition is judged so as to decide to specifically start the communication function of which mobile communication equipment, thereby solving the technical problem of power loss in an existing one-number multi-card service and achieving the technical effect of reducing power consumption.

The invention provides a remote automobile locking method. The method includes the steps that A, a switch state of an automobile ACC is obtained; B, when the obtained automobile ACC state is in the unlocked state, a control IC controls an automobile to be locked in an intermittent mode within the set duration S1 after a control platform issues an automobile locking command, and the automobile is locked after the duration S1 is exceeded; when the obtained automobile ACC state is in the locked state, the control IC does not execute the automobile locking command immediately after the control platform issues the automobile locking command, and the automobile locking command is executed when it is detected that the automobile ACC is in the unlocked state. The automobile locking command is executed only when the ACC is in the unlocked state, so that the power-lack problem of an automobile storage battery does not need to be worried, the purpose of locking the automobile after the power of the automobile battery is lacked can be solved, and the controllability and safety of remote automobile locking are improved; correspondingly, the invention further provides a device capable of locking the automobile remotely.

The invention relates to an integrating type magnetic component arranged on a system circuit board. The integrating type magnetic component comprises a first magnetic component and a second magnetic component, wherein the first magnetic component comprises a primary winding, a secondary winding, a magnetic core group and a containing groove; the primary winding is provided with at least one end part; the secondary winding is arranged corresponding to the primary winding; the magnetic core group is sleeved on the primary winding and the secondary winding, and part of the magnetic core group is covered by the primary winding and the secondary winding; and the second magnetic component is provided with a center hole and a plurality of guide connection ends, contained in the containing groove of the first magnetic component and electrically connected with the system circuit board by utilizing the guide connection ends, and the end part of the primary winding of the first magnetic component passes through the center hole of the second magnetic component and is electrically connected with the system circuit board.

The invention relates to a power supply control method and device of a hybrid electric vehicle. The method comprises the steps of obtaining the working state information of a low-voltage load; determining the total consumed power of the low-voltage load according to the working state information; and controlling a direct-current module according to the total consumed power so as to adjust the output power of the direct-current module. According to the scheme, the output power of the direct-current module can be adjusted according to the actually consumed power, so that the dynamic balance of the total input and output electric quantity of a low-voltage electrical system of the whole vehicle is ensured, the output power of the direct-current module is at a reasonable level, the problem caused by too large or too small power is avoided, the oil consumption can be reduced, the cost is reduced, and meanwhile the problem of power shortage is solved.

The invention relates to a tail gas circulating treatment system of a ship denitrating system based on SCR. The ail gas circulating treatment system of the ship denitrating system based on SCR comprises a power releasing device and a tail gas circulating retreatment device. The power releasing device comprises an air extracting device which is arranged at an outlet of a flue gas denitrating pipeline. The air extracting device comprises a sucking pump, a sucking pump starting and stopping controller, a sucking pump power detecting device and a diesel engine load detecting device. The tail gas circulating retreatment device comprises an ammonia spraying grille and the ammonia spraying grille communicates with the flue gas denitrating pipeline through an ammonia gas pipeline. The system has the advantages that the problem of diesel engine power loss caused by a SCR denitrating device can be well solved and the tail gas after reaction can be retreated by circulating denitrating to reach anemission standard when the concentration of nitrogen oxide in the tail gas subjected to SCR treatment does not reach the emission standard.

The invention discloses a fiber-reinforced resin based composite core of an overhead wire and a preparation method of the fiber-reinforced resin based composite core. The composite core comprises an inner core and an outer core; the outer core coats around the inner core; the inner core is made of carbon fiber; the outer core is made of glass fiber; the inner core and the outer core are molded byheating and curing modified epoxy resin; and the weight percentages of the carbon fiber, the glass fiber and the modified epoxy resin in the composite core are 30-40%, 25-35% and 30-40%. The fiber-reinforced resin based composite core of the overhead wire, disclosed by the invention, is light in weight, high in mechanical strength, good in toughness and excellent in heat resistance.

The invention provides a thermoelectric power generation module for fluid waste heat recovery, and a structure optimization method thereof, and belongs to the technical field of thermoelectric power generation. According to the invention, the length of the thermoelectric semiconductor is determined according to the temperature difference of each thermoelectric semiconductor, when the output powergain value of the thermoelectric semiconductor is optimal, the optimal length of the thermoelectric semiconductor of the improved thermoelectric power generation module is determined, and the cross sectional area of the thermoelectric semiconductor is optimized; by changing the cross sectional area of the thermoelectric semiconductor, the output performance of the thermoelectric power generation module for fluid waste heat recovery is effectively improved, and the thermoelectric conversion efficiency of the thermoelectric power generation module is improved; and compared with a traditional thermoelectric power generation module structure, the thermoelectric power generation module determined by the structure optimization method can solve the problem of electric energy loss caused by the fact that the current generated by the thermoelectric power generation module is limited by the minimum current of the thermoelectric semiconductor.

The invention relates to a shift register circuit and an upper pulling unit thereof. The shift register circuit is provided with a plurality of shift registers in serial connection and in sequence; each shift register at least comprises a phase shifting unit and the upper pulling unit, wherein the phase shifting unit receives a first input signal, a first clock signal and a second clock signal; an electrical level of the first clock signal and an electrical level of the second clock signal are reversed phases; and the upper pulling unit is used for pulling an output signal on the output end to the high electrical level. The upper pulling unit at least comprises a logic unit, wherein when the shift register is operated in any period, the upper pulling unit produces no current path.

The invention discloses an earphone charging device, box and system. The earphone charging device comprises a storage battery, a charging box main circuit, an earphone charging interface, a charging box charging interface and a switching circuit, the power input end of the charging box main circuit and the controlled end of the switching circuit are connected with the charging box charging interface, the power output end of the charging box main circuit is connected with the power input end of the switching circuit, and the power output end of the switching circuit is interconnected with the earphone charging interface and the storage battery. When the earphone charging device carries out charging via the charging box charging interface, the switching circuit is switched on, and DC power undergoes charging management by the charging box main circuit and then output to the storage battery; and when the earphone charging device does not carry out charging, the switching circuit is switched off, the storage battery is isolated from the charging box main circuit, and the charging box main circuit does not work. The problems of electric energy loss and electrostatic interference when the circuit in the earphone charging box is in the work state for long time are solved.

The present invention discloses a device capable of changing straight reciprocating movement to continuous circular movement. Two sides of a reciprocating two-sided rack or two single-sided racks reciprocating in the opposite directions are respectively engaged with a first gear and a second gear. The first gear and the second gear are fixedly connected with a first flywheel clutch and a second flywheel clutch respectively through a first transmission shaft and a second transmission shaft. An edge gear of the first flywheel clutch and an edge gear of the second flywheel clutch are engaged with a mainshaft gear at the same time. The device solves the problems of great loss of the kinetic energy caused by the pressure angle during the process of changing the straight reciprocating movement to the continuous circular movement in the prior art, namely, the problem of 30% of power loss of the crankshaft. In addition, a transmission gear is used to be coaxial with the flywheel clutch, so that the manufacturing is more convenient, and the manufacturing cost is greatly lowered. The flywheel clutch is a non-wear high-strength flywheel, so as to change the straight reciprocating movement to the continuous circular movement almost without loss during the transmitting movement.

The invention relates to a mixed compensation device for mechanical and electric power electronic components when the voltage sags, belonging to the technical field of electrical engineering and machinery. A permanent magnet mechanism and a repulsion mechanism are used in combination in the invention to pmanufacture a drive mechanism of a high-speed mechanical switch which drives an arc extinguish chamber to turn on and turn off, so as to form the high-speed mechanical switch. During norm operations, the device provides electrical energy for a user through the mechanical switch; and when the voltage is low or a power cut occurs, the mechanical switch breaks quickly, and coordinates with the split power supply depending on the current limitation characteristics of the electric power electronic component to initiate a UPS (uninterruptible power supply) and supply the power for the user at the same time. The device provided by the invention also has a good effect of inhibiting large power loss due to longstanding operation of the electric power electronic component under a large current and the heat generated by the power loss. The high-speed mechanical switch is of a simple structure and is easy to maintain.

The invention relates to the technical field of automobiles, in particular to a heat conduction structure, a vehicle-mounted air conditioner and an automobile. The heat conduction structure comprises an energy storage module, a semiconductor patch, a first fan, a second fan and a heat insulation pipeline, wherein the first fan is positioned in the heat insulation pipeline; the second fan is positioned at the exterior of the heat insulation pipeline; the energy storage module and the semiconductor patch are arranged between the first fan and the second fan, so as to improve the heat exchange efficiency. The vehicle-mounted air conditioner comprises a solar battery panel, an air duct and at least one heat conduction structure, wherein the solar battery panel is electrically connected with the heat conduction structure, the heat conduction structure is serially connected with the air duct, and the air duct is the original air duct of the automobile; the vehicle-mounted air conditioner is arranged in the automobile. The heat conduction structure has the advantages that the problems of easiness in power insufficiency due to long-term placement of the automobile and greenhouse effect in the automobile in the extinguishing process are solved, and the suffocation of people in the automobile is avoided.

The invention relates to a lithium battery with a multilayer film heat dissipation structure, and a soaking method of a battery pack thereof. The lithium battery comprises a battery cell, HDPE, a phase change material and a heating shell from inside to outside, the HDPE is added between the battery cell and the phase change material to form a tightly connected heat conduction layer, the heat resistance is reduced to enhance the heat dissipation of the battery and enhance the safety of the lithium battery, the lithium batteries are connected in series to form a battery pack, and the surface temperature of each single lithium battery in the battery pack is balanced by adjusting the thickness ratio of the combination of the HDPE and the phase change material at different parts in the battery pack, so that the soaking of all lithium battery cells in the battery pack is realized. The soaking method can effectively solve the problems that the service life of the battery pack is shortened and electricity is insufficient due to uneven temperature rise of the battery pack so as to prolong the service life of the battery, in addition, the method is low in implementation cost, the lithium battery with the multilayer film heat dissipation structure can be subjected to mechanical batch production, and industrialization can be achieved.

The present invention provides a power amplifier with a reduced voltage supply which, in turn, reduces amplifier power dissipation and can be efficiently used by a communication device during signal transmission. Additionally, the present invention provides a circuit for controlling the voltage supply input into a power amplifier which addresses the problems associated reducing power dissipation while increasing power amplifier efficiency and insuring that the power amplifier is not saturated.

The invention discloses a solar car power supply, and belongs to the technical field of solar cells. The solar car power supply comprises a solar cell array and a peripheral circuit; the solar cell array is paved along the outer side of the car body, and is composed of one or more GaAs-based solar cell units connected in series or in parallel, wherein each solar cell unit comprises a component layer, a metal electrode layer arranged on the component layer and a backing layer which is arranged under the component layer and compose of a metal later and a heat-conducting backing layer; the peripheral circuit is electrically connected to the solar cell array, and comprises a control circuit. The solar cell provided by the invention is efficiency and flexible, solves the problems that the existing solar car power supply is low in photoelectric converting efficiency, poor low light performance, poor wide-angle lighting, poor heat dissipation performance, insufficient flexibility and heavy weight, and can be perfectly integrated on the surface of the car; in addition, heat dissipation is good in strong sunlight in summer so as to avoid excess temperature in the car. The solar car power supply is also applicable to city busses, busses, tops of buildings and curtains facing the sun.

The invention discloses a novel multi-link overload servo press. The novel multi-link overload servo press comprises a rack, a sliding block and a transmission mechanism, wherein the rack comprises apair of sliding rails which are arranged between a base and a top plate; the transmission mechanism is fixed to the top plate, and a power plant is used for driving the sliding block to slide betweenthe sliding rails by virtue of the transmission mechanism; the transmission mechanism comprises a connecting rod; a pair of slider-crank mechanisms are arranged on the top end of the connecting rod, the pair of slider-crank mechanisms are mirrored with each other and are arranged on the top of the top plate, and the other end is connected with the power plant; and a pair of toggle rod mechanisms are arranged on the bottom end of the connecting rod, the pair of toggle rod mechanisms are mirrored with each other and are arranged at the bottom of the top plate, and the other end is connected withthe sliding block. A multistage speed reducing and torsion increasing device is arranged, so that the pressure of the press is increased; a parallel driving mode of a dual degree-of-freedom parallelstructure and double servo motors is adopted, so that the integral power of the press is increased, and the problems of synchronization of the servo motors and dynamic interference, power loss and thelike are effectively solved; and the antisymmetric type slider-crank mechanisms are arranged, so that the structural rigidity and the stability are increased, the mechanical life of the press is prolonged, the power and torque output stability of actuating components of the press is increased, and good control performance is obtained.

The invention provides a control method and a control system for remote one-key power supply of a vehicle. The control method comprises the steps that a TBOX periodically wakes up and monitors the state of the vehicle, and uploads the state of the vehicle to a server, the server receives the voltage state of a low-voltage storage battery, and carries out the operation through a power shortage reminding logic rule; when it is detected that the voltage of the low-voltage storage battery is in the vehicle power shortage state, a prompt and a request are sent to a user terminal through the server; the user terminal feeds back a request instruction, and the server forwards the request instruction to the TBOX; after receiving the request instruction, the TBOX performs authentication with the PEPS; after the authentication is passed, the PEPS carries out authentication with the HCU, and after the authentication is passed, the HCU controls the whole vehicle to be electrified with high voltage; and the whole vehicle is charged after high-voltage electricity is supplied. According to the technical scheme, light power shortage reminding and heavy power shortage reminding are distinguished, a user can better know the state of the whole vehicle, and one-key power supply can be achieved.

The invention discloses a delay control system for a hydrogen energy vehicle. The delay control system comprises a lithium battery assembly, a vehicle controller, a hydrogen energy device, a hydrogen fuel pile delay device, a key switch and a first contactor, the lithium battery assembly comprises a lithium battery, a lithium battery management system BMS, a DC-DC DC converter, a coil and a second contactor; the DC-DC DC converter is arranged between the lithium battery and the lithium battery management system BMS; the hydrogen fuel reactor delay device comprises a hydrogen fuel reactor control system FCU, a relay, a diode and a coil. The whole system adopts an innovative design, is combined with the characteristics of a lithium battery control system, is simple in structure, convenient to implement and low in cost, and can effectively solve the problems of power consumption and shortage, energy waste, unsafety and the like after the hydrogen energy vehicle is parked.

The invention provides a power control method and a device. The method comprises steps: a level and quality relationship curve of each community can be obtained according to the obtained level information and the quality information in multiple MRs of each community in BSC; according to the level and quality relationship curve of each community, scene partitioning is carried out on each community to obtain multiple scene types and a level and quality relationship curve of each interference scene; according to the level and quality relationship curve of each community, level and quality distribution of each interference scene can be obtained; according to the level and quality relationship curve of each interference scene and the level and quality distribution, a first power control parameter group of each interference scene can be obtained; and according to the first power control parameter group of each interference scene and the pre-configured second power control parameter group, power control is carried out on each community in each interference scene.

The invention relates to a direct-current power parallel system and a method for controlling the same. The direct-current power parallel system and the method have the main advantages that output ends of a plurality of direct-current power modules are connected with loads in parallel, each direct-current power module is provided with a virtual voltage drop computing unit, and feedback signals of the output ends are adjusted, so that increase of output impedance can be simulated, and the current-sharing parallel purpose can be achieved by the various direct-current power modules by the aid of a virtual voltage drop process; a voltage regulating unit is further arranged in more than one direct-current power module, so that voltages outputted to the loads can be corrected according to fed outputted voltages, and the voltage regulating ability of the parallel system can be improved.

The invention relates to an electromagnetically-controlled three-gear automatic shifting speed reduction box for an electric vehicle. A working principle is in a way that power switching is achieved by electromagnet control and by combining calculation of a rotational speed, a torque and an accelerator signal, a first gear comprises an electromagnetic driver, a locking mechanism, a sun gear, a motor rotor, a planet carrier, a motor stator, a planet wheel, a gear ring and a motor output shaft, a second gear comprises the sun gear, the motor rotor, the gear ring, the planet carrier, the motor stator, the planet wheel, the motor output shaft, the electromagnetic driver and the locking mechanism, and a third gear comprises the planet carrier, the motor stator, the coil, the motor rotor, the sun gear, the motor output shaft, the planet wheel, the electromagnetic driver and the locking mechanism. The electromagnetically-controlled three-gear automatic shifting speed reduction box for the electric vehicle employs electromagnetic control and multi-gear selection, the requirements of maximum gradability and highest speed of the vehicle can be met, the electromagnetically-controlled three-gear automatic shifting speed reduction box is simple in structure and small in power loss and is difficult to damage, energy is saved, and uninterruptible power, no-impact flexibility and automatic shifting are achieved.

The invention discloses a four-point multi-link pressing machine adopting double-servo drive, belongs to the technical field of forging and pressing machinery, and aims at solving the problems that the needs of high power and high torque are difficultly met by a servo motor, a synchronous control error exists in the servo motor, and the effective output capacity of a servo pressing machine is reduced due to a backlash of an engagement gear in a speed reduction system, in the prior art. The four-point multi-link pressing machine adopting double-servo drive comprises a machine body, a downwards-moving slide block located in the machine body and sliding up and down, a planetary gear speed reduction device fixed to the upper end of the machine body, an auxiliary speed reduction unit connectedwith the planetary gear speed reduction device, a power input unit connected with the auxiliary speed reduction unit, two floating lead slide blocks connected with the power input unit and symmetrically arranged in the front-rear direction, and a double-symmetrical elbow lining mechanism, wherein the power input unit is of a double-symmetrical input structure; the upper parts of the sidewalls of the floating lead slide blocks are connected with the power input unit; and a power input end of the double-symmetrical elbow lining mechanism is connected with the lower parts of the sidewalls of thefloating lead slide blocks, and a power output end is connected with the downwards-moving slide block, and drives the downwards-moving slide block to relatively move or reversely move relative to a workbench.

The invention discloses a power suction device. The power suction device comprises a suction assembly, the suction assembly is installed at the bottom of an oil tank, an inlet of the suction assembly is communicated with the inside of a gearbox through an oil suction pipe, an outlet of the suction assembly is located in the oil tank, and the suction assembly is used for sucking redundant oil in the gearbox into the oil tank; and the suction assembly is connected with a power pipe, and the power pipe provides a power source for oil suction of the suction assembly. The power source is provided for the suction assembly through the power pipe, the power source forms a high-pressure and high-flow-speed power source after passing through a damping spray head, and when the high-pressure and high-flow-speed power source passes through an injection pipe and then is diffused upwards, certain negative pressure is generated at an oil suction opening of a suction connecting pipe, so that oil and foam in the gearbox are automatically sucked into an oil suction pipeline, redundant oil is completely sucked into the oil tank, the liquid level in the gearbox is kept below a transmission gear all the time, and therefore the problem of power loss caused by oil stirring of the transmission gear is effectively solved.

The invention belongs to the technical field of food processing, and particularly relates to nutrient substance separation equipment. The nutrient substance separation equipment comprises a feeding separation mechanism, a crushing shell, a crushing cavity, a cooling mechanism and a base, the feeding separation mechanism is arranged above the crushing shell, the crushing cavity is arranged in the crushing shell, the feeding separation mechanism is connected with the crushing cavity in a communicating mode, and the cooling mechanism is installed on the upper part of the base, the cooling mechanism is arranged on the left side of the crushing shell, and a power mechanism is arranged in front of the crushing shell. The equipment has the advantages that the feeding separation mechanism screens and separates passing nutrient substance raw materials, the crushing cavity grinds and crushes the nutrient substance raw materials, when the temperature generated by grinding is too high, the cooling mechanism cools the crushing shell to avoid the melting of nutrient materials caused by high temperature. The invention further provides a use method of the equipment, and the use method comprises the steps of feeding separation, raw material crushing and the like.