30results about How to "Increased Consistency Requirements" patented technology

The present invention provides a preparation method of a positive electrode material LiMn1-xFexPO4 / C, the method comprises mixing of an A source with a lithium source and a carbon source for reaction to obtain the positive electrode material LiMn1-xFexPO4 / C, and the molar stoichiometric ratio of manganese, iron, phosphorus contained in the A source is Mn: Fe: P = 0.45-0.85: 0.55-0.15: 1. The preparation method is simple, safe in operation, low in cost, and easy in implementation of large-scale production; and a lithium battery positive electrode material prepared by the method has high charge and discharge capacity and stable performance, and is a preferred material for a power battery.

The invention relates to an automatic formation and separation method of nickel-metal hydride batteries. The automatic formation and separation method of nickel-metal hydride batteries comprises the following steps of: (1) self-adapting charging process: charging the batteries in the process; (2) constant current discharging process: discharging the charged batteries by constant current and then entering a third step after finishing discharging; (3) separation process: adopting two steps to carry out separation, wherein the first step of separation is carried out according to voltage changes V of each battery in the step (1); the voltage change V is Vt-V0, Vt is a voltage value after the batteries are charged, and V0 is a voltage value before the batteries are charged; the second step of separation is further thinning separation based on a separation result of the first step and is carried out according to a battery capacity value Q measured in the first step; Q is sigma delta f(i)*deltat; and f(i) expresses an average current value within the time of deltaT. The separation is exact by adopting the method.

The invention provides automatic argon arc welding equipment for a liquid storage tank. The automatic argon arc welding equipment for the liquid storage tank comprises a machine frame, a supporting device, a double-spindle clamping device, a straight line walking device, welding devices and a gas protecting device. The straight line walking device is arranged on the machine frame, the double-spindle clamping device is two spindle seats with clamps, wherein the two spindle seats are arranged opposite to each other on the same horizontal axis, and the two welding devices are separately connectedwith the two spindle seats and arranged above the two spindle seats. The supporting device is arranged in the middle of the two spindle seats. The two spindle seats walk and move towards each other through the straight line walking device, end covers clamped on both sides move along the same horizontal axis to both ends of a liquid storage tank body of the supporting device, and the liquid storage tank body and the end covers are positioned and rotated on a welding station. The gas protecting device is arranged in one of the spindle seats, the gas outlet end of the gas protecting device communicates with the inner portions of the clamped end covers, and ventilation cooling and oxidation prevention during welding are realized. According to the automatic argon arc welding equipment for theliquid storage tank body, fast and reliable automatic welding between the liquid storage tank body and the end covers can be realized.

The invention provides a high-voltage rapidly charged lithium ion battery and a preparation method thereof. The high-voltage rapidly charged lithium ion battery comprises diaphragms, pole pieces, electrolyte, a cathode current collector, an anode current collector and an aluminum-plastic film, wherein each pole piece is prepared by taking the corresponding diaphragm gas a matrix, respectively coating two side surfaces of the matrix with a cathode material and an anode material intermittently to form a cathode and an anode and then carrying out die cutting and cropping; the two diaphragm pole pieces are arrayed side by side and are connected with each other in an insulation manner; the cathode current collector and the anode current collector which are distributed side by side are connected in an insulated manner, and then non-corroded surfaces of the cathode current collector and the anode current collector are fixedly adhered to one side of the inner layer of the aluminum-plastic film; and a series current collector through which a cathode and an anode of the other side of two sheet diaphragms which are connected in an insulated manner is fixedly adhered to the other side of the inner layer of the aluminum-plastic film. The invention further provides the preparation method of the high-voltage rapidly charged lithium ion battery. During processing, the diaphragms which are coated with the cathode material and the anode material are subjected to hot cutting, special foils are not required, after the surface of a foil of an existing current collector is subjected to corrosion treatment, a conductive material coats the surface of the foil, and then the foil is assembled to obtain the final product. The high-voltage rapidly charged lithium ion battery is simple and speedy, and meanwhile, the yield is high.

The invention provides an automobile door assembly fixture. The automobile door assembly fixture comprises a fixture machine body module, driving modules, a positioning clamping module and a controller, wherein the fixture machine body module comprises a rack module and a frame module, an indexing mechanism in the rack module can realize revolving movement of the frame module, one main body of therack module adopts an inverted 'T' shaped structure, one main body of the frame module adopts a structure shaped like a Chinese character 'zhong', and the assembly fixture operation process stabilityis improved; the driving modules are controlled by servo motors and can precisely control the movement amount of an automobile door in the horizontal and vertical directions, meanwhile, the installation angle between the first driving module and the second driving module inside the driving modules is adjusted, any two-dimensional direction reciprocating movement of the automobile door is realized, the debugging cycle is shortened, and the assembly consistency is guaranteed; and the positioning clamping module adopts a flexible development design, an automobile door positioning component, an automobile body positioning component and a vacuum suction cup component can be moved and replaced inside a positioning clamping frame or respective sliding rails, and the universality of the automobile door assembly fixture is enhanced.

The invention discloses an electronic digital detonator remote detonation system and a method thereof. The electronic digital detonator remote detonation system includes an encoder, a decoder and an initiator; Send it to the decoder; when the decoder detects that the detonation preparation is complete, it forms a closed loop according to the excitation command and generates a high-voltage pulse signal to the detonator; when the detonator detects the rising edge of the high-voltage pulse signal, it outputs the detonation pulse to control the electronic digital signal. The detonator detonates; at the same time, the electronic digital detonator returns the CTB pulse to the detonator before the instant of detonation; the detonator controls the decoder to form a discharge circuit according to the simulated CTB pulse, and the decoder generates a CTB signal to the encoder; a closed loop is adopted The unique detonation control method can solve the effect of unstable error in the detonation process of the exploration detonator, and greatly improve the consistency requirements between the detonation of the address exploration and the signal acquisition.

The invention provides a real-time monitoring rapid prototyping device and method based on the femtosecond laser composite technology. The device comprises a vacuum chamber (100), a workbench (101), a feeding device (109), a multi-wavelength fiber laser (120), a real-time monitoring system (110) and a control center, wherein the workbench (101), the feeding device (109), the multi-wavelength fiber laser (120) and the real-time monitoring system (110) are arranged in the vacuum chamber (100), and the multi-wavelength fiber laser (120) and the real-time monitoring system (110) are further in signal connection with the control center outside the vacuum chamber (100). The novel rapid prototyping device and method are provided for manufacturing high-strength, high-finished-product-rate and complex-structure parts and are particularly suitable for various sensors higher in requirement for precision and consistency.

The invention provides a determining method for equalizing current value matched with a power battery system. The determining method comprises determination of a minimum value of the equalizing current value and determination of a maximum value of the equalizing current value, wherein the minimum value of the equalizing current value is determined according to the self-discharge capacity of the battery; the maximum value of the equalizing current value is based on the criterion that the influence on sampling accuracy of a sampling module is within an allowed range. The determining method for the equalizing current value obtains the equalizing current value satisfying the characteristic of the power battery system through the reasonable calculation method on the collected data; the minimum value and the maximum value of the equalizing current value are accurately determined; data and theory support for the power battery system in controlling the equalizing current are provided; and the demand of rapidly improving the consistency of the battery pack through the equalizing function is met, and meanwhile, the battery system can be well maintained, so that the validity and long lasting of the equalizing function are fully ensured.

An embodiment of the invention discloses energy management equipment, an electronic control system, an electronic control method and an electric vehicle. The energy management equipment comprises an H-bridge unit, a battery pack serving as an input power source of the H-bridge unit and a BMS (battery management system) for performing energy balance control on the battery pack, wherein the electronic control system comprises a master controller, 3N sub-controllers and 3N sets of energy management equipment; the 3N sets of energy management equipment constitute a first face group, a second face group and a third face group; each faces group comprises N sets of energy management equipment, the master controller calculates the PWM (pulse-width modulation) duty cycle of each set of energy management equipment, and the sub-controllers control connection of corresponding energy management equipment according to the PWM duty cycles. The embodiment of the invention solves the technical problems of high battery consistency requirement, high detection cost, battery replacement difficulty and poor balance ability of the BMS due to large-scale series connection of batteries in the battery pack of the conventional electric vehicle, so that dynamic voltage equalization after large-scale series connection of the battery pack is realized.

The invention discloses a power industry multi-party information sharing method based on a block chain technology, and the method comprises the steps: enabling a data publisher to authorize data, enabling an enterprise to link the data needing to be shared through a front-end system, enabling a data user to use a private key of the enterprise, carrying out the decryption of a symmetric encryption key on a chain, obtaining a random number of the symmetric key; firstly, obtaining an encrypted original symmetric key from an original data structure, decrypting the key by using a public key, then encrypting the symmetric key by using a private key of an authorized user, establishing a mapping relationship between the encrypted symmetric key and an evidence storage id, obtaining an encrypted original symmetric key corresponding to an account from the original data structure based on the evidence storage id and the account, decrypting the key by using the public key, and using the key for decrypting data and files. The method is designed according to the data type and the system structure, so that a user can have strong consistency among multiple nodes, and the authenticity and credibility of the data are guaranteed.

The invention discloses an HMI configuration synchronization system and method. The system includes an HMI, a plurality of terminal devices and a relay server running remote configuration. The method includes: S1. Any terminal device changes the parameters of the remote configuration to which it belongs, and transmits the parameters to the HMI directly or through a relay server; S2. The HMI changes the corresponding parameters for the local configuration, and uploads the parameter when the parameter change is completed. Update the event to the relay server; S3. The terminal device obtains the update event from the relay server, and changes the parameters of the remote configuration to which it belongs according to the update event. The present invention changes the parameters of the remote configuration through the terminal equipment, and the HMI modifies the local configuration according to the parameters. When the modification is completed, the HMI generates and uploads an update event to illustrate the details of the parameter change, and the terminal equipment changes the remote configuration according to the update event. , can realize the synchronization of configuration data to improve the requirements of system consistency and reduce the risk of system operation.

The invention discloses a processing method of a piezoelectric composite material. The processing method comprises the following steps: 1) attaching a second surface of the piezoelectric material to a plane; 2) cutting the first surface of the piezoelectric material and forming a first cutting groove on the first surface; (3) filling the first cutting groove with a polymer, and curing the polymer; (4) taking down the piezoelectric material from the plane; (5) attaching the first face of the piezoelectric material to the plane; (6) cutting the second face of the piezoelectric material along the first cutting groove, a second cutting groove is formed in the second face, so that the first cutting groove and the second cutting groove are communicated; (7) filling the second cutting groove with a polymer, and curing the polymer; and 8) taking down the piezoelectric material from the plane to obtain the piezoelectric composite material. The processing method of the piezoelectric composite material can meet the processing requirements of array piezoelectric materials and the requirements of improving the yield and consistency, and has the advantages of being simple and low in cost.

The invention provides an automobile door assembly fixture, which includes a fixture body module, a driving module, a positioning and clamping module and a controller; The mechanism can realize the turnover movement of the frame module. The main body of the frame module adopts an inverted "T" structure, and the main body of the frame module adopts a "middle" structure, which improves the stability of the assembly fixture operation process. The drive module is controlled by a servo motor, which can precisely control the movement of the car door in the horizontal and vertical directions, and at the same time adjust the installation angle between the first drive module and the second drive module in the drive module to realize the car door. The reciprocating movement in any two-dimensional direction can shorten the debugging cycle and ensure the consistency of assembly; the positioning and clamping module adopts flexible development design, and the door positioning component, body positioning component and vacuum suction cup component can be positioned in the positioning and clamping frame or in their respective slide rails. Move and replace, enhancing the versatility of the door assembly jig.

The invention provides a growth method of a micro light emitting diode epitaxial wafer, which belongs to the technical field of semiconductors. The growth method comprises the following steps of providing a substrate, and sequentially growing an N-type layer, an active layer and a P-type layer on the substrate. The step of growing the N-type layer on the substrate comprises the sub-steps of growing a plurality of first N-type layers and second N-type layers on the substrate, wherein the first N-type layers and the second N-type layers grow periodically and alternately, introducing hydrogen andsilane into the reaction chamber, growing a first N-type layer under the high-temperature condition, wherein the first N-type layer is a Si-doped GaN layer, and stopping introducing hydrogen and silane into the reaction chamber, reducing the temperature in the reaction chamber, and growing a second N-type layer on the first N-type layer, wherein the second N-type layer is an undoped GaN layer. Byadopting the growth method, the stress in the N-type layer can be repeatedly released for multiple times, the warping of the epitaxial wafer is greatly improved, the consistency of various parametersof the micro light emitting diode is better, and the requirement of high consistency of various parameters of the micro light emitting diode is met.

The present invention relates to the technical field of mobile communication, and discloses a terminal protocol consistency test system for 5G communication, including a test terminal and a tested terminal, and the test terminal includes a user operation module, a test module, a system simulator, an abnormal memory module and a processing module , the test module can encode the test information from the user operation module to generate test commands, the system simulator can test the terminal under test according to the test commands, and cooperate with the analysis unit of the test module to generate a test report, the verification unit can according to the test The report output includes the result value and the verification result of the abnormal feature. When the result value is inconsistent, the abnormal memory module stores the abnormal feature, and the processing module uses the abnormal feature as the index to call the corresponding processing command and output it. The invention also discloses a 5G communication terminal protocol consistency testing method, which is based on a 5G communication terminal protocol consistency testing system.

The invention discloses a data storage system, method and query method, comprising a master physical database, a first memory database, a slave physical database, and a second memory database; the master physical database is used to store the first type of data, the second type of data and the third type of data; the first memory database is used to store the first type of data in the main physical database through the main physical database; wherein, the consistency requirements for reading and writing of the first type of data Higher than the consistency requirements for reading and writing of the second type of data, by classifying the data stored in the main physical database according to the level of consistency requirements, and storing the data with high consistency requirements in the first memory database, In addition, the first in-memory database synchronously replicates the first type of data in the main physical database, so as to ensure the consistency of data with high consistency requirements.

The invention relates to an automatic component sorting method for a nickel-hydrogen battery. The automatic component selection method of Ni-MH batteries includes: first, an adaptive charging process, during which the battery is charged; second, a constant current discharge process, during which the fully charged battery is discharged at a constant current, Enter the third step after discharge; third, the sorting process, the sorting process adopts two-step sorting, the first sorting is to sort according to the voltage change V of each battery in the first step above, and the voltage change V =Vt-V0; Vt is the voltage value after battery charging is completed, and V0 is the voltage value before battery charging; the second step of sorting is to further refine the sorting on the basis of the sorting results of the first step, and the second step Sorting is carried out according to the battery capacity value Q measured by each battery in the above step 1, Q=∑Δf(i)*Δt, f(i) represents the average current value within Δt time. Using the above method, the sorting is accurate.

The invention discloses an out-of-plane axial detection MEMS capacitive accelerometer with low cross-axis sensitivity, and relates to the field of MEMS inertial devices. The accelerometer includes a structural layer, a substrate layer and a silicon cover plate. The sensitive structure of the accelerometer includes four sets of orthogonally distributed sensitive mass units and an unbalanced mass. Each group of sensitive mass elements is connected to the central mass through two connecting beams. Each proof mass center includes two anchor points, each anchor point is connected to the proof mass by two elastic torsion beams. The Z-axis MEMS accelerometer with low cross-axis sensitivity of the present invention has the advantages of having a sensitive structure with large mass blocks, reducing common mode interference through multiple differential mass blocks, and realizing low cross-axis sensitivity through orthogonally distributed sensitive mass units .