190 results about "Initial sequence" patented technology

The invention discloses a method and a system for orthogonal modulation of power signals. The method comprises the following steps: acquiring an initial sequence length and an initial sequence according to a frequency lower limit, a preset sampling frequency and an initially set integer signal cycle number of a power signal; acquiring a reference frequency according to the initial sequence, and further acquiring a unit cycle sequence length and a preset sequence length; acquiring first forward and reverse sequences according to a preset sequence starting point and the preset sequence length; generating first real-frequency and imaginary-frequency vector sequences and second real-frequency and imaginary-frequency vector sequences according to the first forward and reverse sequences; converting obtained first and second phases into a first forward sequence average initial phase; obtaining a new preset sequence starting point according to the average initial phase; and obtaining a cosine function modulation sequence and a sine function modulation sequence according to second forward and reverse sequences obtained from the initial sequence. By adopting the method and the system of the invention, an orthogonal modulation sequence with consistent amplitude height can be obtained, and the accuracy and anti-jamming performance of sinusoidal parameter calculation are improved.

The present invention discloses a network message security package method. It contains generating application layer message; package head generating one random numbers as initial sequence number, serial number added 1 in transmitting one message, using serial number and message length bytes as package head added to message top; load filling its finally bytes meaning filling length; ciphering message; message authentication code message authenticating code calculation; transmitting security packaged signaling message package IP /UDP or TCP head. The present invented method adopts application layer package mode therefore being not related to network address translation equipment NAT, enhancing security.

The embodiment of the invention provides a scrambling code sequence generation method, a device and a system for scrambling or descrambling. The method comprises the following steps: obtaining the initial sequence of a first pseudo-random sequence; obtaining a self-scrambled sequence of a second pseudo-random sequence after self-scrambling the initial sequence of the second pseudo-random sequence, multiplying the initial sequence of the first pseudo-random sequence with a preset M matrix, and generating the self-scrambled sequence of the first pseudo-random sequence; and carrying out XOR operation on the self-scrambled sequence of the first pseudo-random sequence and the self-scrambled sequence of the second pseudo-random sequence according to bits and obtaining a scrambling code sequencefor scrambling or descrambling. The embodiment can simplify the generation process of the scrambling code sequence, shorten the generation time of the scrambling code sequence, further shorten the time for scrambling or descrambling transmitted data, accelerate the scrambling or descrambling processing speed of a wireless communication system and save system resources.

A method and apparatus are provided for synchronizing a terminal with a frequency from an ordered initial sequence of frequencies of a radio-communications network. An available power spectrum associates to each frequency of the initial sequence a power value representing the power with which the frequency is received by the terminal. At least one first range of consecutive frequencies is determined within the initial sequence, having a power variation below a first predetermined threshold. The terminal attempts at least one first synchronization with a frequency of the first range. If each first synchronization fails, the terminal obtains a modified sequence by modifying the position of the frequency or frequencies of the at least one first range of the initial sequence or by eliminating the at least one first range. The terminal then attempts a second synchronization with at least one of the frequencies of the modified sequence.

Systems, methods, and computer-readable storage media are provided for improving order feed message stream integrity. Certain embodiments provide a method including sending, by a computing device, a first data message; sending a first stop message; clearing a message stream state; and sending a second data message. The first data message includes data related to an order for a tradeable object, a first sequence number with a value of a predefined initial sequence number, and a first phase number. The second data message includes data related to an order, a second sequence number with a value of the predefined initial sequence number, and a second phase number, wherein the second phase number is different than the first phase number. The message stream state is associated with the order.

An indoor parking lot remaining parking space prediction method comprises the following steps that 1, acquiring a parking lot unoccupied parking space sequence, and carrying out data preprocessing; step 2, performing denoising processing on the training set of the initial sequence to obtain a time sequence with noise removed, recording the time sequence as a smooth sequence, and dividing the smooth sequence into a test set and a training set; Using the smooth sequence training set to train an LSTM neural network; step 3, constructing and training a gray residual neural network model by using the initial sequence; and step 4, weighting and combining the two prediction models to obtain a final prediction model.

The invention provides a chip, a consumables container and a working method of the chip. The chip comprises a substrate, wherein a communication module and a storage are arranged on the substrate, the storage stores a group of initial sequence number data and at least one group of standby sequence number data and is provided with a bit zone which stores an identification value used for identifying the currently used sequence number; and the storage is also provided with a transformation judging unit used for judging whether the sequence number data transformation condition is met or not and a transforming unit for transforming the identification values. The method comprises the steps of: after electrifying the chip, sending corresponding sequence number data according to the identification values, judging whether the currently used sequence number data is the initial sequence number data according to the identification value, if yes, judging whether the sequence number data transformation condition is met or not by the transformation judging unit, and transforming the identification value by the transforming unit. The invention can effectively avoid the problem that the consumables container can not print because the sequence number stored in the chip is the same with the sequence number stored in a printer, thereby reducing the waste and being beneficial to environment protection.

Disclosed is an excavating diagnosis method of failure data based on a bayesian network. The method is used for diagnosis of equipment failures. Parameter points, capable of being obtained, of existing devices with failures are monitored in advance, and a monitoring signal and a failure type are used as input variables of the bayesian network; then, nodes are sorted at random, side adding or changing operation is carried out in the search problem, the generated bayesian network is graded and stored in a database, finally, the bayesian network with the highest score in the database is used as an equipment failure diagnosis inference graph, equipment data needed to be diagnosed are input into the diagnosis inference graph, and the diagnosis result can be obtained. The search density can be set according to the actual condition, and can be prevented from being caught in endless loop; a penalty term can be adjusted so as to prevent excessive fitting; an initial sequence is generated at random to enable the system to have a certain roughness; a user can see the equipment failure diagnosis inference graph, and therefore logic analysis can be carried out on the failure happening mechanism.

The present solution is directed to systems and methods for synchronizing a random seed value among a plurality of multi-core nodes in a cluster of nodes for generating a cookie signature. The cookie signature may be used for protection from SYN flood attacks. A cluster of nodes comprises one master node and one or more other nodes. Each node comprises one master core and one or more other cores. A random number is generated at the master core of the master node. The random number is synchronized across every other core. The random number is used to generated a secret key value that is attached in the encoded initial sequence number of a SYN-ACK packet. If the responding ACK packet does not contain the secret key value, then the ACK packet is dropped.

The embodiment of the invention provides a data processing method for a power battery and device, which are applied to a power assembly. A battery management system operates in the power assembly; thebattery management system comprises a database; historical battery data are stored in the database, and the historical battery data in the database are acquired; feature sequence data and initial sequence data in the historical battery data are extracted; according to the feature sequence data, a first training input vector and a first training sample vector are generated; the first training input vector and the first training sample vector are adopted to train a preset machine learning model, and a machine learning model after training is acquired; the initial sequence data are inputted to the machine learning model after training to acquire predicted voltage sequence data; and according to the predicted voltage sequence data, the battery capacity information of the power battery is acquired. The cost is reduced, the time is saved, and the problem of much consumed manpower bright by a capacity estimation experiment can be solved.

The invention discloses a method of generating a pseudo-random sequence in an LTE system. The method comprises the steps of obtaining an initial sequence of a first pseudo-random sequence according to communication information of the LTE system; obtaining an initial sequence of a second pseudo-random sequence; performing phase mask sequence operation of the first pseudo-random sequence to obtain a self-scrambling sequence; performing phase mask sequence operation of the second pseudo-random sequence to obtain a self-scrambling sequence; and performing XOR operation of the two self-scrambling sequences to finally obtain a scrambling sequence for scrambling or descrambling. The invention can effectively improve the generation time of a scramble code without increasing the computational complexity, and the overall performance of a communication system is improved.

The invention discloses a method for continuously separating and aligning a plurality of cylindrical hollow bodies (23), wherein one sides of the hollow bodies are closed.The hollow bodies (23) are placed in order in a treatment room (10).The hollow bodies arranged in an initial sequence in the treatment room are in linear contact with each other by the action of an air flow.The hollow bodies placed in order move toward the output (22) of the treatment room (10) by the air flow.The hollow bodies (23) are pressed against a guide rail (32) by the air.The hollow bodies (23), which are not within the linear range, are ejected through an opening (28).The invention also discloses an apparatus adopting the above method.

The invention discloses an Android intelligent device anti-getroot system and a calibration method of the Android intelligent device anti-getroot system. The method includes the steps that a dynamic password module is set in a central processor of an intelligent device and comprises programs solidified in the central processor, data to which users and codes of a common domain cannot have direct access are stored, a security algorithm is supported, dynamic password data needed by applications are stored and guaranteed, a security guiding process is executed, a basic security guarantee is provided for an operating system and application software, the system operates in the central processor, and a storage space independent of an external bus is used for operating a security processing program and storing a middle result. Key data mainly comprise symmetrical cryptographic algorithm secret keys and asymmetric cryptographic algorithm public keys and are used for basic initial sequences of an authenticated one-way hash algorithm, the purpose of protecting safety of the system at the hardware level is achieved, the anti-getroot performance of the Android intelligent device is improved, and the safety performance of the whole system is improved.

The present invention is a polynomial-based hash function involving an ERINDALE-PLUS hashing algorithm. The function may involve several elements, including splitting with jumping, masking and bit string generation which generally involves representing an initial sequence of bits as a specially constructed set of polynomials. The means of achieving the function may involve methods that achieve improved speeds, such as requirements related to the size of the bit strings to cause the bit strings to be compatible with splitting and jumping and to involve iterated masking of a degree greater than 0. Additionally the function may involve recursive padding methods and a construction of MAC for considered hash function. The sum of the elements of the present invention is the provision of enhanced security as well as improved speed of processing for messages. Thus, messages processed by way of the present invention may be less prone to attack.

The invention discloses a method and a device for processing data and relates to the technical field of data processing. The complex mode integration required after a log event base is divided according to a fixed time length and is dug can be avoided. The method comprises the following steps of according to a first time length, dividing the log event base to obtain at least one log sequence which is continuous in time sequence; determining the first log sequence sequenced on the log sequence as an initial sequence, and sequentially judging the number of events contained in the current log sequence from the initial sequence; if the number of the events contained in the current log sequence is smaller than a preset first event number, determining sub sequence bases; respectively analyzing each sub sequence base to obtain an analysis result corresponding to each sub sequence base. The method and the device are mainly applied in a data processing process.

Disclosed are a magnetic resonance imaging system protecting method and device, and an automatic shutoff testing method. The protecting method includes a), providing expected safety parameters; b), after the magnetic resonance imaging system starts scanning corresponding to initial sequence information, collecting actual sequence information in the process of scanning; c), according to the actual sequence information, calculating actual safety parameters; d), judging whether the actual safety parameters do not exceed the expected safety parameters or not; e), if yes, continuing to execute scanning corresponding to an initial sequence; f), if not, stopping scanning. The device comprises an input module used for inputting the expected safety parameters, a collection module used for collecting the actual sequence information, a calculation module used for calculating the actual safety parameters according to the actual sequence information, a judgment module used for judging whether all of the actual safety parameters do not exceed the expected safety parameters or not, and the control module is used for controlling to continue to execute scanning if yes and to stop scanning if not. By the protecting method and the protecting device, safety of a scanning object in the actual process of scanning can be effectively guaranteed.