58results about How to "Achieve randomness" patented technology

The invention discloses a bullet screen display method and system in live video, the method comprises the steps: bullet screen display quantity displayed on each page can be determined according to horizontal screen height of mobile equipment display screen and preset bullet screen frame height, initial position of the bullet screen frame is set, all IDs of the bullet screen frame form a bullet screen frame ID array, a timer is initialized and turned on, if multiple bullet screen data from the server terminal exists in a bullet screen pool is judged, if yes, if available bullet screen frame exists on all pages is judged, if yes, an available bullet screen frame is extracted from the pages randomly, the earliest reach bullet screen data in the bullet screen pool is filled in the bullet screen frame, the bullet screen frame is made to horizontally move in a constant speed from right to left, the ID of the bullet screen frame is removed from the bullet screen frame ID array, and the next bullet screen data in the bullet screen pool is put on. The method and system can solves a technology problems of internal storage growth, system performance reduction and dull bullet screen displaying which are caused by keeping receiving bullet screens in live video process.

The invention provides a bidding and tendering information processing method and terminal based on a block chain, a bidding and tendering supervision information processing method and terminal, a bidevaluation information processing method and terminal and a bidding and tendering system based on the block chain. The block chain comprises a bidding node, a bidding node, an expert node and a supervision institution node, and the bidding information processing method comprises the following steps: encrypting bidding information, and broadcasting the encrypted bidding information to a block chainnetwork; generating an intelligent contract, and broadcasting the intelligent contract to the blockchain network to extract review expert nodes; and when a bid winning result is received, verifying the bid winning result, if the verification is passed, encrypting the received contract file, and broadcasting the encrypted contract file to the blockchain network. According to the invention, the transparency of bidding and tendering is improved, and heavy loss caused by tampering of bidding and tendering information is avoided.

The invention discloses a connection method for a mobile phone with two card slots. A switch control unit is preset in the mobile phone with two card slots and the invention includes that a communication unit acquires the types of cards in a first card slot and a second card slot; then the present available networks are determined according to the types of the cards in the two card slots and are provided to users for choosing; according to the types of the cards in the first card slot and the second card slot acquired by the communication unit, the switch control unit controls the connection of the communication unit which the user selects and corresponds to the network with the card slot of the card which the user selects and corresponds to the network. The invention also discloses a mobile phone with two card slots. By adopting the invention, the free choice of cards for a user can be realized.

The invention relates to a method for automatically packaging an APK (Android Package) installation package on a server. The method at least comprises the following steps that: establishing a Jenkins platform on a management server in advance, and establishing a gradle command task on the platform; obtaining the test code of a target item code by the management server, generating a test item set, and storing the test item set in a git library; automatically obtaining a target test item set from the specific git library by a Jenkins execution node in fixed time, adopting a gradle tool to compile and package an obtained target test item set file by the gradle tool, and generating an APK file; and through an interface script file, moving the generated APK file to an appointed catalogue. The invention aims to establish an automatic operation method and system capable of efficiently, accurately and continuously packaging the APK installation package.

The invention discloses a pilot frequency sequence generation method and system, wherein the method comprises the following steps that: both parties in communication respectively obtain the channel characteristic of a wireless channel; and the both parties in communication map an estimation value of the channel characteristic in real time to generate a random pilot frequency sequence. With the method and the system provided by the invention, both legal parties in communication can obtain consistent channel characteristics based on the reciprocity of uplink and downlink channels, and further generate the private and random pilot frequency sequence based on characters of physical layer information of a wireless communication system, wherein the generation process is free from transmitting related information in the wireless channel, so that communication security is improved.

A game comprising a plurality of stations, each of which recognizes the accomplishment of a task therewith and communicates this accomplishment to at least one other station. In this manner, at least one of the stations can gather information from all of the stations for score-keeping and other purposes. An output can be generated by one, some, or all of the stations based on an accomplishment with a particular station and / or based on the information gathered from all of the stations. The communication between / among the stations is preferably performed wirelessly by infrared light techniques, radio frequency techniques, and / or ultra high-frequency sound techniques.

The embodiment of the invention discloses a data processing method and device for game rewards. The method comprises the following steps: reading a template table, wherein at least two reward templates are stored in the template table, at least two data pairs of which the value and probability correspond to each other are stored in each reward template, wherein the value represents the value of rewarded articles, and the probability represents the probability of the rewarded articles corresponding to the value; generating random numbers, and acquiring the current value and maximum value according to the random numbers and the data pairs; and reading a rewarded article table, selecting actual rewarded articles and target rewarded articles from the rewarded article table according to the current value and the maximum value, and transmitting the actual rewarded articles and target rewarded articles to a client, wherein at least two rewarded articles and corresponding values thereof are stored in the rewarded article table. The randomness of rewarding players in the game is realized, the man-machine interaction is enhanced, and the experience of the players is improved.

The invention discloses a relay protection synchronization performance testing system based on random discrete time domain. The relay protection synchronization performance testing system comprises an upper computer and a testing host, wherein the testing host comprises a CPU (Central Processing Unit), a data generating module and a plurality of random data sending modules, wherein the upper computer, the CPU and the data generating module are sequentially connected, the data generating module is connected with the random data sending modules, the random sending modules are connected with measured interval-crossing protection equipment, the data generating module comprises a first crystal oscillator, an FPGA (Field Programmable Gate Array) and a multichannel data sending module, the first crystal oscillator, the FPGA and the multichannel data sending unit are sequentially connected, and the random data sending modules comprise data sending units, receiving units and second crystal oscillators. According to the relay protection synchronization performance testing system disclosed by the invention, randomness and discreteness on an output time domain of a merging unit are actually realized by adopting a multi-crystal oscillator system, and the multi-crystal oscillator system comprises crystal oscillators of the data generating module and crystal oscillators of the random data sending modules.

The invention discloses a multifunctional mobile phone charging shell. The mobile phone charging shell comprises a solar cell panel, a voltage-stabilizing circuit current-limiting protection module, a charging protector, a lithium battery, a switch-type step-up transformer, a USB output interface, a wireless charging interface, an external equipment full charge detecting system and a diode. The multifunctional mobile phone charging shell is the multifunctional mobile phone charging shell integrated with the traditional charging mode, the wireless charging mode and the solar energy charging mode; techniques such as solar energy charging techniques, high-efficiency switch step-up power supply, lithium battery charging protection techniques and wireless long-distance charging techniques are used; the battery life of the mobile phone is effectively prolonged; practicability of the mobile phone shell is improved; radiation dangerousness is reduced by using radiation protection material; and the mobile phone shell of the invention is small in size and high in portability; clean and pollution free solar energy is fully used; charging randomness of the mobile phone is realized. The multifunctional mobile phone charging shell provided by the invention is varied in charging mode, is beautiful and improves living standards of people.

The invention discloses a system and a method for searching a traffic route. The system at least comprises a fuzzy expected value model building module and a shortest path calculation module, wherein the fuzzy expected value model building module is used for building a fuzzy expected value model by describing distances among nodes of a traffic network into the form of fuzzy variables; and the shortest path calculation module is used for calculating the shortest path and length among the nodes of the traffic network by means of building a cloud model and utilizing a cloud genetic algorithm according to the obtained fuzzy expected value model. The system and the method disclosed by the invention has the characteristics of stabilization tendency and randomness by using the cloud genetic algorithm so solve the optimization problem of searching the traffic route, and can be used for searching the shortest path to improve the traveling efficiency of travelers.

The invention provides a lottery drawing method based on a block chain. The lottery drawing method comprises the following steps: creating a lottery drawing activity item as a first transaction to theblock chain according to lottery drawing activity information; receiving registration information sent by an activity participant according to the lottery activity project as a second transaction soas to send the registration information to a block chain; generating a winning position number according to a random number and a predetermined rule, and obtaining a corresponding lottery drawing number according to the winning position number to determine a winning participant; and checking the related information of the prize winners of the round of lottery drawing, sending the related information to the block chain, and feeding back the prize winning information to the activity participant. The random data is calculated to generate the random number, so that the generated random number is sufficiently hidden and unpredictable, all the data generated in the lottery drawing process is automatically recorded into the block chain by the smart contract, and everyone monitoring and fairness and justice are achieved.

The invention discloses a method for quantitatively evaluating output fluctuation of photovoltaic field stations based on RankBoost, which mainly comprises the steps of: 1) obtaining historical outputdata of the photovoltaic field stations, eliminating invalid data, and establishing a valid data set V; 2) calculating output fluctuation quantitative indexes of each photovoltaic field station, wherein the output fluctuation quantitative indexes comprise an output start-stop moment fluctuation index TDR ([epsilon]1), an output power fluctuation index and a power generation fluctuation index; 3)screening the valid data set V again based on the output fluctuation quantitative indexes of each photovoltaic field station to obtain a valid data set V'; and 4) evaluating the output fluctuation quantitative indexes of the valid data set V' by using a RankBoost algorithm to obtain an output fluctuation performance evaluation result of each photovoltaic field station. According to the method, thecomprehensive, scientific and visual index quantization and evaluation method is created, so that previous qualitative evaluation of the randomness and volatility of the photovoltaic field stations is improved to a quantitative level.

The invention relates to a control method and device of molten steel pouring. The method comprises: acquiring data of a mold cavity, total weight data of a steel ingot and total height data of the steel ingot; acquiring a pouring speed curve of a molten steel pouring process according to the data of the mold cavity, the total weight data of the steel ingot and the total height data of the steel ingot; acquiring molten steel parameter information at the former moment and molten steel parameter information at the current moment; calculating the real-time pouring speed at the current moment according to the molten steel parameter information at the former moment and molten steel parameter information at the current moment; and regulating the speed for pouring the molten steel in a steel ladle onto a mold according to the pouring speed curve and the real-time pouring speed at the current moment. By using the control method and device of molten steel pouring, disclosed by the invention, the problems of randomness and instability of production carried out completely by virtue of experience of pouring workers in the steel ingot pouring process are solved, the repeatability and stability of production operation can be realized, the stability and accuracy of molten steel rise in the steel ingot pouring process can be guaranteed, and a guarantee is provided for the precise regulation in the molten steel pouring process.

The embodiment of the invention provides a method and a device for robot racing, electronic equipment, and a storage medium. The method comprises the following steps of: detecting whether a target robot vehicle collides with other game vehicles or not when the target robot vehicle drives along a target track; determining the position, nearest to the target track, of the geometric center of the collided target robot vehicle, and taking the position as a first position if the target robot vehicle collides with other game vehicles; adjusting the driving parameters of the target robot vehicle, andcontrolling the target robot vehicle to return to the target track according to the first position, so that the geometric center of the target robot vehicle is overlapped with the first position; andcontrolling the target robot vehicle to continue driving along the target track. According to the embodiment of the method for robot racing, the robot vehicle is corrected when collided in the racing, so that the randomness and the reality of real player racing are simulated.

The invention discloses a wireless communication frame structure signal processing method, and the frame structure is an uplink frame which consists of a pilot code element sequence, a synchronous code element sequence, and a data code element sequence. The method comprises steps of firstly subjecting input data to channel coding to obtain coding sequences, interleaving coded sequences to obtain an interleaved coding sequence; punching the interweaved sequence to obtain a punched sequence; performing XOR on the punched sequence and the scrambled code sequence to obtain a scrambled sequence, mapping the scrambled sequence into a data code element sequence, combining the data code element sequence, a pilot frequency code element sequence and a synchronous code element sequence according to the frame structure to form an uplink frame, and performing code element upsampling on the code element sequence of the uplink frame to obtain an uplink signal to be sent. The interleaving method designed by the invention can realize better random degree and uniformity degree, a group of code elements at the head or the tail are simply removed after interleaving, the length of a data frame is shortened, and the utilization efficiency of channel resources is improved.

The invention discloses a tornado weather simulation method, an intelligent terminal and a storage medium. The method comprises the following steps: selecting a development environment tool, establishing a network geographic information system, and calling parallel rendering power of a graphic accelerator to simulate a vivid water body simulation special effect; obtaining basic characteristics ofa tornado meteorological effect, wherein the basic characteristics comprise visible appearance, dynamics and randomness; using particles in preset motion for forming the appearance of a gyro body of the whole tornado, achieving dynamics by controlling rotation of the particles and setting different transparency, and achieving randomness by setting different motion speeds and different shapes and sizes of the particles; setting attributes related to tornado weather, and controlling particles to realize tornado weather simulation according to the attributes. According to the invention, a tornadoweather which does not spin continuously, has a gyro form and cannot be seen in an operation rule is simulated in a mode of setting different attributes and rules through particles, and tornado weather effect simulation is realized.

The embodiment of the invention relates to an authentication method and a system, an arbitration node and a storage medium, belonging to the technical field of block chains. The method comprises the following steps: obtaining the arrival time of an authentication request from m nodes to n arbitration nodes in a preset ring connection relationship; randomly selecting y nodes from m nodes as verification nodes according to each arrival time; verifying the transaction by the verifying node, wherein one node corresponds to one arbitration node and corresponds to one arrival time, and 0 <y <m, 0 <n. Provided by the present embodiment is a technical scheme that: y nodes are randomly selected from m nodes as verification nodes according to the arrival time, and the transaction is verified by theverification node, which avoids the technical drawback that the verification operation is monopolized by a certain number of nodes in the prior art, which causes the peripheral nodes to publish falseverification results, thereby realizing the technical effect of improving the accuracy of the verification results.

The invention discloses a parallel graph encryption method based on an easy-to-octyl structure. The parallel graph encryption method comprises the following steps: S1, obtaining to-be-encrypted graphdata I stored in a graph structure form from a storage system; S2, correspondingly generating a key vector K for the to-be-encrypted graph data I through a random vector generator; S3, performing graph structure identification on the to-be-encrypted graph data I to obtain a graph structure type of the to-be-encrypted graph data I; and S4, according to the graph structure type obtained in the stepS3, constructing a corresponding graph encryption algorithm based on the easy-to-octyl model, encrypting the to-be-encrypted graph data I according to the corresponding key vector K, and outputting anencrypted graph file E. The method has the beneficial effects that the image can be encrypted efficiently, safely and flexibly, and the efficiency is higher due to parallel encryption. Requirements of reversibility, diversity, high efficiency, randomness, diffusivity and the like required by graph encryption can be met.

The invention discloses a blunt knife machining device of a wood floor. The blunt knife machining device comprises a lifting mechanism (1), a swing mechanism (2), a floating mechanism (3) and a blunt knife mechanism (4); the swing mechanism (2) and the floating mechanism (3) are arranged on the lifting mechanism (1); the blunt knife mechanism (4) is arranged on the swing mechanism (2). According to the blunt knife machining device of the wood floor, the structural design is reasonable, the operation is convenient, the performance is stable, and the manufacturing cost is low; the grooving depth and width of the machined floor can be convenient to control and accordingly the attractiveness and the consistency are good; the free position cutting on a blunt knife can be implemented through the lifting swing combination of a linear guide rail and a feed screw nut; the flexibility and the randomness of blunt knife patterns are implemented through the matching of blunt knife device modules; the degree of automation of products and the production efficiency of the products are high.

The embodiment of the invention provides a system testing method and device. The method comprises the steps that a performance testing device conducts performance testing on at least one server wherea tested system is located, in the performance testing process, operation parameters of the at least one server are obtained, then a target server is determined from the at least one server accordingto the operation parameters, and stack collection is conducted on the tested system on the target server; performance problem analysis is made according to the stack acquisition result, and finally aperformance test result and a performance problem analysis result of the tested system are generated. The method is used for solving the problems of low test efficiency and untimely system fault positioning of an existing system.

The invention provides an earthquake liquefaction judging method and an earthquake liquefaction potential model. The method includes collecting earthquake liquefaction site data as a training set; theseismic liquefaction potential model is generated by using the liquefaction discrimination indexes in the training set to discriminate the seismic liquefaction. According to the seismic liquefactionpotential model, the liquefaction data are judged and the liquefaction judgement results are obtained. Based on the depth-learning algorithm, this method realizes the high-precision nonlinear modelingof earthquake liquefaction with uncertainty, randomness and multi-factor coupling, and the discrimination accuracy is over 95%. It can be used as a supplement to the deterministic methods such as experience and laboratory tests, and can provide support for exploring the scientific problems of the deep mechanism of earthquake liquefaction.

The invention provides a self-help tennis service training device based on unmanned partner training. The self-help tennis service training device comprises a square bottom plate, a leaf spring and aremote controller, wherein a square top plate is arranged right above the square bottom plate; the square top plate and the square bottom plate are fixedly connected by virtue of a group of hydraulicscissors mechanisms. When intercept back training operations of smash need to be trained, training personnel transmit instructions to a single-chip by the remote controller, the single-chip controls the hydraulic scissors mechanisms to extend and ascend, and the two groups of telescopic hydraulic cylinder pistons are controlled to ascend, so that the square plate rotates along two U-shaped connecting plates via a U-shaped connecting block. Therefore, a cylindrical groove of the square plate corresponds to an area in which the training personnel in the tennis court are positioned after ascending. According to the training device disclosed by the invention, the tennis ball ejecting from the cylindrical groove can serve as the smash so as to train the intercept back training operations of thesmash of the training personnel.

The invention provides a task determination method and related equipment. The method comprises the steps: task information is received, wherein the task information comprises a task set and a target time period, and the task set comprises one or more to-be-executed tasks; the execution times of each to-be-executed task are obtained; and a first number of execution moments is determined in the target time period according to the number and the execution times of to-be-executed tasks contained in the task set, and a target task executed at each execution moment is determined, wherein the targettask belongs to one or more to-be-executed tasks. In the task execution process, the task determining device can randomly determine the execution time from the target time period and automatically determine the target task needing to be executed at each execution time, so that the task setting process of a user is simulated, the randomness of task execution is achieved, the operation frequency ofthe user can be effectively reduced, and the intelligence of the task determining device is improved.

The invention relates to a method for realizing information encryption matching processing based on an SM2 curve, and relates to an initiating end, a response end and information encryption matching modules respectively owned by the initiating end and the response end. The initiating end generates mapping information, and blinding processing is carried out to generate blinding information. The response end performs blind signature processing to generate blind signature information. The initiating end removes the blind information to obtain encrypted to-be-matched information. The response endgenerates mapping information, and encrypts the mapping information to generate encrypted to-be-matched information. The initiating end compares the encrypted to-be-matched information of the initiator with the encrypted to-be-matched information received from the response end, and judges whether the encrypted to-be-matched information is matched. The invention further relates to an information encryption matching processing system and device, a processor and a computer readable storage medium thereof. By adopting the method, the system and the device for realizing information encryption matching processing based on the SM2 curve, the processor and the computer readable storage medium thereof, randomness of encryption matching information is realized, and the advantages of high encryptionstrength and high processing speed are also realized.

The invention discloses an infant limb coordination rehabilitation training device for hypointelligence, and belongs to the field of training instruments. The device comprises a ball sorting device and a ball receiving device. The ball sorting device is provided with a sorting chamber. A certain number of baffle blocks are arranged, and then the random outflow of input balls is realized. An infantoperates a handle and a pedal on the ball receiving device to enable the balls to fall into a groove-shaped ball channel. The device does not relate to an electric power system, and is convenient toadjust and simple to disassemble. During the training process, the device is easy to understand for children with low intelligence, so that the children feel interesting. The coordination ability of the children is effectively improved, and the children are helped to enter the normal social life. The device is of great significance to both families with hypointelligence children and the society.

The invention provides a case random sorting method and device, and the method comprises the steps: obtaining a case list of a project case from a case library according to a case browsing request initiated by a project audit member for the project case; according to the member feature information of the project audit member and the case feature information of the project case, determining a random sorting value of the project audit member for each project case in the case list; according to the random sorting value, sorting the project cases in the case list according to a sorting rule; and returning the sorted case list to the project audit member. In the process that the project audit member browses the project cases, the arrangement sequence of the project cases in the case list is randomized, so that the number of times that each project case is browsed by the project member in the audit process is basically the same, and the exposure rates of the project cases in the case libraryin the audit process are basically the same.

The invention discloses a mathematical probability learning device which comprises a random poking device, the random poking device is connected with a fastening shaft, the fastening shaft is provided with a magnetic correction rod and a through-hole roller, the two ends of the magnetic correction rod are provided with a positive magnetic pole and a negative magnetic pole, the outer side of the magnetic correction rod is provided with a magnetic correction disc, and an inner bag is arranged in the through hole roller. The inner bag is a hollow thin-walled cylinder, a bottom plate is arranged at the lower end of the inner bag, the bottom plate is a table top with the middle protruding, an inner hole is formed in the bottom plate, the through-hole roller is a hollow thin-walled cylinder, an annular bottom edge is arranged at the bottom of the through-hole roller, and a plurality of outer holes are formed in the annular bottom edge. Through the arrangement of the random stirring device and the magnetic force correction device, any accidental hole is connected with the inner hole to release small balls with random numbers, the influence of the external environment, the force applied by an experimenter, the angle and other stirring habits is almost avoided, the independence and randomness of events are achieved, and the experiment result is guaranteed. The device is compact in structure, convenient to carry, simple to operate and convenient to demonstrate.

The invention relates to the technical field of food detection, and discloses a food supply chain quality safety sampling inspection device and a sampling inspection method thereof. The food supply chain quality safety sampling inspection device comprises a main body, supporting legs are fixedly connected to the four corners of the bottom face of the main body, a supporting plate is fixedly connected to the bottom ends of the supporting legs, and a motor is fixedly installed on the left portion of the surface of the supporting plate; and two first rotating shafts are movably connected to the upper portions of the front side and the rear side of an inner cavity of the body, and a fixing shaft is movably connected to the left portion of the middle of the rear side of the inner cavity of the body and penetrates through the rear side of the body. A driving gear drives a first transmission gear and a second transmission gear to rotate, the second transmission gear drives a reciprocating lead screw to rotate through chain transmission, a reciprocating sliding block and a baffle move back and forth through rotation of the reciprocating lead screw, and food to be detected is randomly swept to a second conveying belt through back-and-forth movement of the baffle; and the randomness in the sampling inspection process is realized, and the sampling inspection efficiency is improved.

The invention discloses a ciphertext sorting search method and system based on PCA (Principal part Analysis). According to the method, the dimension of the keyword index matrix is reduced by using the PCA algorithm, so that the key dimension is also reduced, and the data encryption speed and the search efficiency are greatly improved. For privacy infringement behaviors of an unauthorized user and an untrusted server, a reversible matrix encryption method is adopted to protect data information, and on the basis, a method of randomly setting a threshold value is provided to realize randomness of data dimension reduction, so that the data safety is further improved. Besides, by deeply researching the principle of the PCA algorithm, a unit matrix is introduced before dimensionality reduction is carried out on an index matrix, so that the part of the query vector also participates in the dimensionality reduction process, the safety is improved, and the query precision is ensured.