42results about How to "Optimal balance" patented technology

The invention discloses a battery pack balancing repair management system comprising a collecting circuit, a processing circuit and a balancing repair circuit. The collecting circuit is used for collecting the electric quantity of each battery of a battery pack after an emergency start power supply successfully starts a vehicle, and transmits the electric quantity to the processing circuit; the processing circuit is used to determine whether a difference between a maximum value of the electric quantity and a minimum value of the electric quantity is greater than a safety set value, and starts the balancing repair circuit to repair the battery pack if yes, or stops the balancing repair circuit if not. The battery pack balancing repair management system detects the counter-charge situation of the battery pack in real time, performs balancing repair on the imbalanced battery pack, minimizes the imbalance of the battery pack, makes every battery of the battery pack at the most balance state constantly, enables the battery pack to operate evenly before a user uses the battery pack next time no matter the battery pack is charged or discharged, and prolongs the service life of the battery pack.

The invention discloses an input signal acquisition device of an independent variable-pitch control system. The input signal acquisition device comprises a sensor bracket which is connected with a cross rod in front of a wheel hub, and a sensor bracket which has a first distance from the wheel hub. Axial direction of the sensor bracket and the cross rod is coaxial with the rotation axial direction of the wheel hub, the sensor bracket is synchronously rotated with the cross rod in a running process of an impeller, at least a receiving-transmitting device is installed in the sensor bracket, and the at least one receiving-transmitting device and a host machine installed in a cabin of a fan together constitute a laser Doppler radar wind measurement system. The receiving-transmitting device is used for transmitting a bundle of narrow band laser pulses with stable frequency and controlling the laser pulses to point to a set measure point area in an inflow area in a set slope angle so as to obtain Doppler frequency shift data so that the host machine can calculate the average wind speed in the set measure point area according to the Doppler frequency shift data. The invention also discloses an input signal acquisition method of the independent variable-pitch control system.

The invention belongs to the technical field of application of semiconductor temperature difference power generation, and particularly relates to a moveable semiconductor temperature difference generator. The moveable semiconductor temperature difference generator comprises a mobile station, a constant temperature heater, a heat sink, a circuit board box, a temperature difference generating device and a power box, wherein the constant temperature heater, the heat sink, the circuit board box, the temperature difference generating device and the power box are fixed on the mobile station; the temperature difference generating device is formed by series connection of semiconductor temperature difference power generation sheets, a layer of porous nanometer metal film for covering is arranged between each two adjacent semiconductor temperature difference power generation sheets in a semiconductor temperature difference power generation sheet group, the two surfaces of the formed semiconductor temperature difference power generation sheet group are respectively in mutual and close contact with a guide pipe of the heat sink and a heating plate of the constant temperature heater; a lighting device comprises lighting panels, the surfaces of which are covered by hierarchical pore TiO2 / quantum dot / dye laminated structures; the lighting panels are in tight contact with hot ends of the semiconductor temperature difference power generation sheet group. Compared with the prior art, the moveable semiconductor temperature difference generator has the advantages that the generating efficiency of the moveable semiconductor temperature difference generator can reach 8-9%, and the moveable semiconductor temperature difference generator can conveniently move, is stable to operate and can be commercially applied on a large scale.

The invention relates to the natural and bionic irrigating, belonging to the water industry field, especially relating to a bionic irrigating machine which can provide water in accordance with the plant growing need for the whole day in the agricultural saving-water irrigation. The invention breaks the traditional intermittent rotation irrigation idea, making use of the physiological characteristic of the crop, the mechanism of the blood supply by the human capillary vessel to the cell and the principle of capillary absorbent, when the crop needs little water, the water entering to soil through line 4 is little; when the crop needs much water, the water entering into soil through line 4 is much, which on the whole reaches a optimum equilibrium state.

The invention discloses a dione pyrrolo-pyrrole copolymer red electroluminescent material and a preparation method and application thereof. The method introduces dione pyrrolo-pyrrole (DPP), hydroquinone ether and para-dicyano-benzene constitutional units into a main polymer chain to prepare a series of copolymer electroluminescent materials (PCA). A copolymer of the invention has excellent hole and electronic transporting properties at the same time and can be applied to preparing polymer red electroluminescent devices (PLED). The DDP copolymer prepared by the method serving as the red electroluminescent material not only has good solubility and can be easily prepared into high-quality organic films through spin coating, but also has the advantages of high luminous efficiency, high brightness, good current carrier mobility, good color purity, emission of pure saturated red light, low device driving voltage, good stability and the like.

The invention provides an unmanned aerial vehicle flight state prediction method and system based on LSTM. The method of the invention comprises the following steps: step 1, constructing an action label dictionary; 2, collecting flight state information and motion data of the unmanned aerial vehicle; 3, preprocessing the collected flight state information of each unmanned aerial vehicle; 4, forming a data set in the form of a data matrix; 5, randomly dividing the data set into 70 percent of the training set and 30 percent of the verification set; obtaining the improved LSTM model of a long-short-term memory network with variance by training. 6, tuning the super parameters of the model to obtain a final model by using a verification set; 7: collecting the UAV flight state information of theUAV at the current time which needs to be predicted, and inputting the information into the final model after preprocessing and filtering to obtain the UAV flight motion prediction result. The technical proposal of the invention solves the problem that the existing control model cannot predict the flight action according to the collected flight state data.

The invention provides a method for separating and recovering cobalt, copper and iron in white metal, comprising the following steps: step 1, mixing white metal powder with water, stirring and slurrying to obtain a slurry mixture; step 2, adding to step 1 In the obtained slurry mixture, after adding concentrated sulfuric acid while stirring, the first solution is obtained; step 3, at a temperature of 70°C to 85°C, adding sodium nitrate solution to the first solution obtained in step 2 while stirring, When Cu in solution 2+ When the ion content is 2g / L~8g / L, stop adding the sodium nitrate solution to obtain the second solution. Step 4, adding iron powder to the second solution obtained in step 3, reacting, and filtering to obtain simple copper and a third solution, the third solution is a mixed solution containing cobalt and iron. Then, iron powder is used to replace copper with copper, so that copper, cobalt and iron are separated, and then further recovery of cobalt and iron is carried out. The method has mild reaction, stability, safety, easy control, high leaching rate and easy realization of large-scale production.