35results about How to "Easy to upgrade and improve" patented technology

The invention discloses a method for removing silicon and phosphorus impurities from rich-vanadium desorption liquid. The method comprises the following steps that the temperature of the rich-vanadium desorption liquid is regulated to 10 DEG C to 100 DEG C; purifying agents A are added, wherein the purifying agents A are at least one kind of materials from quicklime, slaked lime and lime milk, the full reaction is carried out after the stirring, the obtained reaction liquid is filtered and washed, the primary purified rich-vanadium liquid is obtained; the pH value of the primary purified rich-vanadium liquid is regulated to 8 to 10; and purifying agents B are added, wherein the purifying agents B are magnesium chloride and / or magnesium sulfate, the full reaction is carried out after stirring, the obtained reaction liquid is filtered and washed, and the purified rich-vanadium liquid is obtained. The method has the advantages that the process steps are simple, the purification cost is low, the vanadium loss rate is low, the silicon and phosphorus removal effect is good, and the like.

The invention discloses a signal generation device and method for an arbitrary waveform generator. The signal generation device and method can generate various different signals according to the needsof a user. The device comprises an application layer which is used for configuring signal generation parameters, generating a unified interface file from the configured parameters and outputting theunified interface file to a function module layer; the function module layer used for reading the interface file, analyzing the configured parameters, generating a required signal by utilizing a function function, storing the signal as a plurality of binary files, and outputting the binary files to the driving layer; a driving layer used for transmitting the data in the binary file to the operating system layer; and the operation system layer used for generating a trigger output pulse signal according to the waveform output trigger mode, converting the received data into an analog signal, carrying out waveform conditioning and gain control on the analog signal to obtain an adjusted required signal, and outputting the adjusted required signal.

The invention relates to a method and system for constructing non-progressive screen dots, belonging to the field of printing and publishing. Multiple layers of annularly embedded non-progressive screen dots are generated through a defined function cluster F, a direct network-hanging method or screen dot optimizing method by using collimation errors that deep color is easy to invade light color on the vision of the human body on the basis of network hanging of the non-progressive screen dots. By adopting the method and the system disclosed by the invention, the printing effect is bright, the progressive effect is smooth and thin, and the new screen dot greatly reduces the continuous area of ink, therefore, the ink consumption is greatly lowered, the printing cost is saved and the environment is protected.

The present invention relates to a kind of high-performance embedded camera system based on general CPU of X86 platform, comprising: front-end sensor module, FPGA information collection module and X86 framework information main processing module; front-end sensor module transmits the image data collected to FPGA information collection module The image data is converted and processed by the FPGA information acquisition module, and sent to the X86 architecture information main processing module for information processing; the X86 architecture information main processing module extracts preset demand information after information processing, and transmits it to the data receiving end. A kind of high-performance embedded camera system based on the general-purpose CPU of X86 platform that the present invention proposes, utilizes the general-purpose CPU of x86 framework as the platform of high-definition information processing, replaces special-purpose embedded digital dsp chip, thereby reduces the difficulty of system development, reduces The product development cycle is shortened, and the requirements for professionals are reduced.

The invention discloses a DSP (Digital Signal Processor)-based quad-rotor unmanned aerial vehicle autonomous hover control system and method. The control system is provided with four screw propellers and control units which are arranged on four airfoils respectively; and each control unit is that a master control unit is connected to a ground computer through a wireless network, and a receiver is connected with a signal conversion module and a manual / automatic switching chip in sequence, transmits a received signal transmitted by a remote controller into the manual / automatic switching chip through the signal conversion module, is also connected with the manual / automatic switching chip through the master control unit and is used for transmitting the received signal to the manual / automatic switching chip through the master control unit for controlling driving units to drive direct current brushless motors on the four screw propellers to work. According to the method, kalman filtering processing is performed on sonar data to obtain accurate height data and driver control. According to the system and the method, the autonomous flight capacity of a micro quad-rotor unmanned aerial vehicle and the adaptability to the environment can be effectively enhanced, and the autonomous flight control under indoor environments and outdoor environments can be finished.

The invention discloses a method for treating vanadium extracting industrial acid wastewater and comprehensively recycling valuable metal. The method comprises the following steps that aeration and oxidation are carried out on the acid wastewater, and then a purifying agent A is added and is at least one of limestone, unslaked lime, slaked lime and lime milk; stirring is carried out for reacting, and the pH of the reaction endpoint is controlled to be equal to 4.5 to 5.0; filtering and washing are carried out, and primary purifying liquid and primary purifying residues are obtained; a purifying agent B is added to the primary purifying liquid, and is at least one of unslaked lime, slaked lime and lime milk; stirring is carried out for reacting, and the pH of the reaction endpoint is controlled to be equal to 6.5 to 7.5; filtering and washing are carried out, and secondary purifying liquid and secondary purifying residues are obtained; and a purifying agent C is added to the secondary purifying liquid and is at least one of sodium dimethyldithiocarbamate (SDD), sodium sulfide and barium sulfide, stirring is carried out for reacting, filtering is carried out, and third purifying liquid and third purifying residues are obtained. The method has the beneficial effects of being simple in process step, low in treatment cost, good in valuable metal comprehensive recovery effect and the like.

The invention discloses an anti-theft electric vehicle charger capable of alarming, which comprises a circuit board and an alarm control circuit, wherein the circuit board converts alternating current into low-voltage direct current and charges an electric vehicle. The circuit board is provided with a direct current output end and a charging plug connected to the direct current output end. The alarm control circuit is connected between the direct current output end and the charging plug of the circuit board. The alarm control circuit can operate at a charging state and a non-charging state. The alarm control circuit can give out an alarm when connection between the charging plug and a charging port of the electric vehicle is broken at the non-charging state. The alarm control circuit can give out an alarm when connection between the charging plug and the charging port of the electric vehicle is broken in the charging process or when charging is completed at the charging state. The anti-theft electric vehicle charger disclosed by the invention has the characteristics of simplicity, convenience, safety and reliability, realizes combination of a charger and an alarm, can have a function of being safe and theft preventing while charging the electric vehicle, and realizes integrated theft prevention of the electric vehicle and a storage battery.

The invention provides a magnetic field generating method used for the dynamic feature test of a giant magnetoresistance sensor. The method comprises the following steps that 1, the axial space of magnets and the test point position are determined by two permanent magnets; 2, a displacement scale plate is arranged along a catheter, a movable magnet is moved for measuring the magnetic field intensity of the test point, and a function relationship H(s) between the relative displacement of the movable magnet and the magnetic field intensity is built; 3, a power source is used for driving the movable magnet, and the dynamic magnetic field with the magnetic field intensity changed along with the time is generated; 4, a laser speed measuring instrument is arranged on the side surface of the catheter, the moving speed of the movable magnet in the catheter is measured in real time, and the function relationship s(t) between the relative displacement and the time is built; 5, the s(t) and the H(s) are used for deducing and building a mathematic model Ht(t) with the dynamic magnetic field changed along with the time, and the magnetic field quantity measurement direction displacement measurement conversion is realized; 6, the power dimension of the power source is changed, and the dynamic magnetic field meeting the dynamic characteristic test requirements of the giant magnetoresistance sensor is generated. The method has the advantages that the modularized design of the device is realized, and the device can be favorably improved and upgraded.