32results about How to "Increase the number of charges" patented technology

The invention provides an unattended system for automatically charging an unmanned aerial vehicle. The unattended system comprises a parking cabin, wherein the parking cabin comprises an upper box and a lower box which are arranged up and down; the top of the upper box is open, the upper box communicates with the lower box, and a lifting mechanism is arranged in the lower box and used for collecting the unmanned aerial vehicle into the lower box; an unmanned aerial vehicle position correcting unit is further arranged in the upper box and used for correcting the position of the unmanned aerial vehicle and shifting paddles of the unmanned aerial vehicle into the storage space; the lower box is internally provided with an automatic charging and power-off unit used for charging the unmanned aerial vehicle; a controller is arranged in the parking cabin, and a control circuit of the lifting mechanism and a control circuit of the unmanned aerial vehicle position correcting unit are both connected with the controller; the controller comprises a wireless communication module, and the wireless communication module is connected with an upper computer. According to the unmanned system for automatic charging of the unmanned aerial vehicle, the parking cabin is small in occupied area and convenient to disassemble, assemble, debug and transport; wired charging is adopted, so charging efficiency is high; and the power-off mechanism prevents the blade motor from rotating in the cabin to damage the blades due to misoperation.

The invention relates to a rapid discharge method for a waste lithium battery. The method comprises the following steps: putting the waste lithium battery into a salt solution, so as to soak the wastelithium battery; applying ultrasonic wave and magnetic field to the salt solution, so as to perform auxiliary discharge. The method ensures that the waste lithium battery realizes rapid discharged under the coaction of the ultrasonic wave and the magnetic field, and compared with the traditional mixed liquor agent discharge method, the method can reduce environment pollution and agent usage costwhile greatly quicken the discharge speed of the waste lithium battery; compared with independent ultrasonic-assisted discharge, the method can further improve the discharge speed, and shorten the period of recovery treatment of the waste lithium battery. The invention further relates to rapid discharge treatment equipment for the waste lithium battery, corresponding to the method.

This invention relates to a charge method and a circuit for charge cells, in which, the method includes: controlling the output charged current to rise from zero to the peak value Im of the charge current in the specific time period t1 to t2 by adjusting the duty ratio of PWM control signal, and t1 and t2 are the beginning and ending time of the rising stage of the current, setting t the time as the X shaft, i the charge current as the Y shaft, keeping the peak value in the period of t2 to t3 to output charged current continuously, t3 is the ending time of the stable stage, the circuit includes a MCU process circuit and a current control circuit, and the MCU process circuit outputs PWM control signal of the monotony change of the duty ratio to the switch tube conversion circuit in the specific time period t1 to t2 and the output current of the current control conversion circuit rises to the peak value IM of the charge current.

The present application provides a backlight unit, its control method, and a liquid crystal display device. The control method includes the following steps: acquiring backlight data corresponding to each partition, where the backlight data includes data of multiple bits; The lighting process of a frame is divided into multiple subfields with different durations, each subfield corresponds to one bit of data, and any two subfields include different numbers of subfields; multiple subfields are output in a preset order. The brightness of the backlight is adjusted by sub-field segmentation to reduce the power consumption of the backlight unit, and by including different numbers of sub-fields in any two sub-fields, the charging times of the light-emitting units of each sub-field in each sub-field are increased, Control the brightness of each partition of the backlight unit more precisely, so that the phenomenon of uneven brightness and darkness disappears.

The embodiment of the invention provides a driving method of a display panel, a driving chip and a display device in the technical field of display, and is used for improving the ghost shadow phenomenon and improving display performance. The driving method comprises the steps of monitoring a static pattern displayed by the display panel in a first driving mode and when the display brightness value of the area where a static pattern is located and display brightness value of an area where the surrounding pattern is located meet preset conditions, defining the area where the static pattern is located as a target area; driving a pixel circuit in the target area in a second driving mode, in a second drive mode, enabling the grid line to scan the pixel circuit at a second frequency; wherein inthe first driving mode, the second frequency is greater than the first frequency of scanning the pixel circuit by the grid line, wherein in the second driving mode, the driving period of the pixel circuit comprises a signal switching period, an initialization period, a data signal writing period and a light emitting period, and in the signal switching period, the data line writes different data signals into the pixel circuit.

The invention relates to a manufacturing technology of a lithium ion battery, in particular to a liquid injection method for a lithium ion battery. The method comprises the following steps: step 1, injecting liquid for the first time, injecting electrolyte solution A containing vinylene carbonate into the lithium-ion secondary battery to be injected; the liquid injection volume is 30-45% of the total liquid injection quality ; Step 2, into; Step 3, the second injection, the electrolyte solution B containing vinylene carbonate is injected, and the injection volume is 25% to 35% of the total injection quality; Step 4, into; Step 5, For the third injection, the electrolyte C containing vinylene carbonate is injected, and the injection volume is 15% to 25% of the total injection quality; step six, chemical formation; step seven, the fourth injection, the electrolyte D injection, the liquid injection volume is 10% to 20% of the total injection liquid mass; Step 8, aging, and secondary packaging after aging to obtain a lithium-ion battery. The invention promotes the battery to form a stable and dense SEI film, and can effectively improve the charging times and service life of the battery.