40 results about "Random delay" patented technology

The invention relates to the technical field of data lines, and particularly discloses a data line system and a data line for intelligently switching data transmission and charging, and the system comprises a dual-core synchronization management module which is used for enabling dual cores to enter an initial detection state through encryption synchronization signaling when equipment is connected; the asynchronous signal processing module is used for generating state judgment parameters through multi-scale sliding window processing and time-frequency domain feature fusion; the consensus decision arbitration module outputs a backtracking trigger signal through dynamic projection transformation and self-adaptive threshold comparison; the state backtracking recovery module is used for generating a retry instruction with a random delay period based on the historical backtracking success rate and the signal quality evaluation; the safety mode control module is used for identifying dominant features by analyzing historical failure records and switching to a safety operation mode; through distributed dual-core cooperative processing and an intelligent fault recovery mechanism, the technical problems of confusion of protocol stacks and deadlock of a state machine in a complex electromagnetic environment are solved, and the anti-interference capability and reliability of the system are improved.

The invention discloses a federated learning time series data analysis method based on shuffling differential privacy, which comprises the following steps that: a central server initializes global model parameters and distributes an initial model to all federated learning clients; each client uses a local time sequence data training model, calculates a gradient, then cuts the gradient, and adds Laplacian noise; the client uploads the disturbed gradients to a shuffling device, and the shuffling device allocates random delay time to each gradient and disrupts an uploading sequence to realize privacy amplification; the central server aggregates the gradients processed by the shuffling device to generate a global gradient, and broadcasts the updated model parameters to the client; repeating the above steps to perform iterative training, and tracking privacy budget consumption in real time through a privacy accounting method until a preset privacy budget threshold value or model convergence is reached; according to the invention, privacy amplification is realized, and noise injection is reduced.

The application discloses a kind of based on time random number identification sequence's internet of things node adaptive access method, comprising the following steps: S1, node initialization resource;S2, node generates identification sequence X and is packaged with initial number and sends;S3, gateway verifies node message after extracting identification sequence X and searches idle number;S4, gateway generates identification sequence Y after random delay and is packaged with identification sequence X and number and sends;S5, node verifies identification sequence X in message and extracts identification sequence Y and number;S6, node will new number and identification sequence Y package and send;S7, gateway verifies number and identification sequence Y in node message and sends response package back;S8, gateway waits for node to resend to judge registration completion.The method does not need floating-point operation unit and other additional hardware and software cost requirements, deployment is simple, stability is good, can greatly reduce the operation cost of artificial operation and maintenance and avoid the waste or conflict situation of node number resource caused by misoperation.

This application discloses a verification method, system, device, and storage medium for a device under test (DUT), applied in the field of testing technology. The method includes: configuring N verification tasks for N operating modes of the DUT, with each verification task configured with a random delay; placing the N verification tasks into a first queue; selecting one verification task from the first queue; determining the cumulative number i of times the currently selected verification task has been selected from the first queue, and sending its i-th step to the DUT; after the DUT completes the execution of this step, after the random delay of the verification task, returning the verification task to the first queue, and repeating the operation of selecting one verification task from the first queue until all steps of each verification task have been executed by the DUT; and determining the verification result of the DUT. Applying the scheme of this application can effectively realize the verification of the DUT, improve the verification efficiency, and avoid errors.

The application is suitable for the technical field of rodent control, and provides a mouse driving method based on a dynamic composite sound field and an intelligent mouse driving device. The method comprises: when detecting rodent activity, outputting an ultrasonic electric signal and a simulated audio electric signal; performing random delay processing and random gain processing on the ultrasonic electric signal; performing random delay processing, random gain processing, three-dimensional sound field rendering processing and dynamic volume adjustment processing on the simulated audio electric signal; driving a plurality of surround-arranged ultrasonic transducers and synchronously driving a plurality of surround-arranged loudspeakers to generate a dynamic composite sound field. The application can form a dynamic composite sound field with physiological interference and psychological deterrence by performing random delay, gain processing, spatialization processing and dynamic processing operations on the ultrasonic signal and the simulated audio signal respectively, and cooperatively outputting by the surround-arranged sound generating units, avoid the mouse driving blind area, and is not easy to be adapted by rodents, thereby improving the instant effect and durability of mouse driving.

The invention belongs to the technical field of charging piles, and particularly relates to a power-frequency small-current leakage protection low-frequency conducted interference resistance detection system and method. The system comprises a random phase-shift frequency-conversion oscillation module for converting low-frequency conducted interference of 10kHz-150kHz into an unstable equivalent low-frequency signal by introducing random delay to control the charging overturning time of a magnetic core; the dot frequency comb filtering module is used for filtering the current signals of a plurality of preset power frequency harmonic frequency points and outputting a maximum effective value; and the power frequency current judgment module is used for judging whether the effective value continuously exceeds a threshold value (such as 5mA) and reaches stable time (such as 50ms) so as to distinguish real electric leakage and interference. The method is realized based on the system. The core advantages of the invention lie in that misoperation caused by low-frequency conducted interference can be effectively avoided, the reliability of high-sensitivity (5mA) electric leakage protection in a complex electromagnetic environment (such as electric vehicle charging) is significantly improved, and the strict safety standard requirements such as UL2231 and the like are met.

The application discloses a communication method based on a 485 bus and a smart home system, and relates to the technical field of communication, and aims at solving the problem of low communication efficiency of the 485 bus caused by the random delay method for solving the 485 bus conflict in the traditional 485 bus multi-master communication process. The method comprises the following steps: when a plurality of master devices receive data error indication sent by a slave device, at least two master devices determine delay time for delaying data transmission according to the device address of the self device, and the remaining master devices except the at least two master devices enter a waiting transmission state. A first master device with the shortest delay time among the at least two master devices sends data to the slave device again when the first delay time of the self device arrives, and if the plurality of master devices all receive data correct indication, the master devices except the first master device among the at least two master devices send data again.

Method, modules and a system formed by connecting the modules for controlling payloads are disclosed. An activation signal is propagated in the system from a module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to external power source such as AC power.

This invention provides a method, system, and storage medium for vector signal analysis and processing at the uplink signal receiver of a wideband code division multiple access (WCDMA) wireless communication system. It is used to perform frequency domain and modulation domain index measurements, channel decoding, and other processing on the uplink signal of a WCDMA wireless communication system. The beneficial effects of this invention are: by using an R&S cellular test instrument to sample WCDMA uplink signals, the various processes of this invention were debugged. Under conditions of AWGN, DC bias of -39dB, random delay, and random frequency offset, the uplink signal waveform of WCDMA FDD was generated. Simulation processing of various processes, including synchronization, carrier frequency offset estimation and compensation, descrambling, equalization, and despreading, was performed. The DC bias and error vector amplitude (EVM) of the uplink signal were measured, and the downlink physical control channel (DPCCH) and downlink physical dedicated channel (DPDCH) were demodulated and decoded. The CRC check of the DPDCH channel passed, verifying the correctness of each process.

Embodiments of the present application provide a ranging method, an electronic device and a storage medium, wherein the method comprises: sending a ranging instruction to a second node, wherein the ranging instruction at least comprises a ranging time slot indication, and the ranging time slot indication is used to indicate a time region in a corresponding logical frame structure in which the second node sends data in response to the ranging instruction; receiving ranging response content sent by the second node, wherein the ranging response content at least comprises random delay information of the second node and response duration information of the second node; determining equivalent delay information of the second node according to a sending time of the ranging instruction, a receiving time of the ranging response content, the ranging time slot, and the ranging response content; and sending the equivalent delay information to the second node. The embodiments of the present application can implement device ranging in a low-delay scenario, without interrupting normal service transmission, and can guarantee the stability of service transmission.

The invention relates to the field of encryption processing, and provides a PCIe-based hardware acceleration AES remote dynamic encryption method and system. The method comprises the following steps: generating an initial encryption key, and transmitting the initial encryption key to a local host to obtain local key data; sending the to-be-encrypted data to the FPGA hardware module, and performing encryption processing on the to-be-encrypted data through a pipeline to obtain encrypted output data; during encryption processing, receiving updated key information through the double-buffer key storage structure, and switching keys through the updated key information to obtain dynamically updated encryption configuration; performing randomized adjustment on the time sequence characteristics and the power consumption characteristics in the pipeline encryption processing process to generate an encryption execution environment; and performing encryption processing on the encrypted output data based on the encryption execution environment and the dynamic update encryption configuration to obtain final output data. On-line dynamic updating of the secret key is achieved through a double-buffering secret key storage structure, the PCIe bus bandwidth is fully utilized in combination with a full-assembly-line encryption architecture, and side channel attacks are effectively resisted through random delay insertion and a power consumption balancing mechanism.

The present application relates to the technical field of sensor connection control, and particularly relates to a wireless connection method of a power sensor, which comprises the following steps: each sensor is activated and parameter configured respectively after arriving at a scene, each sensor takes the time of completing parameter configuration as an initial start time T1; all the sensors are grouped, and each sensor in each group is respectively set with a time offset T2=T g +G i ×T s , wherein T g is a group wake-up period of a corresponding sensor in a group, G i is a group number of the corresponding sensor in the group, and T s is an inter-group step length of the corresponding sensor in the group; each sensor is respectively increased with a random delay T3, and the random delays of each sensor in the same group are not repeated; a wake-up period T of each sensor is T1+T2+T3, each sensor is started after being woken up according to the wake-up period, a main device is wirelessly connected with a corresponding sensor after receiving, and the sensor is restored to a sleep state after sending state data.

The embodiment of the invention provides a motor modulation period data processing method and device, electronic equipment and a storage medium, and the method comprises the steps: firstly, obtaining the current random delay time corresponding to a current modulation period of a motor, and the preorder random delay time corresponding to a preorder modulation period; then, on the basis of the current random delay time, the preorder random delay time, the smoothing coefficient and the fixed sampling period of the motor, smoothing weighting calculation is carried out, a target switching period corresponding to the current modulation period is obtained, and the target switching period is located in the switching period range; and finally, a control signal is generated based on the target switching period to drive the motor, so that the reliability of modulation control is effectively improved while the electromagnetic radiation index of the motor driving control system is ensured to be improved.

This invention relates to the field of parallel system technology, and in particular to a control method, control device, and storage medium for a parallel system. The method includes: after entering a parallel state, acquiring its own random code and random delay, and entering a waiting state based on the random delay; if no first control command is received from other controllers during the waiting state, then acting as the master and sending the first control command to all other controllers; receiving a slave command including the slave's random code sent by a slave device; in response to the slave command, allocating a virtual parallel address to the slave device from an address list, and sending a response command including the virtual parallel address to the slave device; acquiring the total number of currently connected slave devices, setting a transmission period based on the total number, and sending a second control command to all slave devices according to the transmission period; and receiving a slave data command sent by each slave device in response to the second control command based on its own random delay. This invention eliminates the need for manual address adjustment, improving convenience and reducing costs.

The invention discloses a terminal equipment access method, device and system based on a Modbus and a storage medium, and the method comprises the steps: sending a preset number of detection messages to terminal equipment on each port bus; if a preset number of detection response messages fed back by the terminal equipment according to a random delay response mechanism are obtained and the detection response messages fed back by the same terminal equipment each time are the same, extracting identity identification information corresponding to the terminal equipment, matching the identity identification information with pre-configured identity identification information, and if the matching is consistent, sending the terminal equipment to the terminal equipment; performing identity authentication on the terminal equipment; after the authentication is passed, a Modbus address is allocated to the terminal equipment; and sending an association message to the terminal equipment according to the configured Modbus address, and when verifying that the Modbus address is successfully configured based on a response message sent by the terminal equipment, indicating that the access of the terminal equipment is completed. According to the method, the equipment access compatibility, debugging efficiency and safety are improved, the access standardization and automation are promoted, and the operation and maintenance cost is reduced.

This invention relates to the field of online speaker logging technology. To address the problem that full-scale memory attention mechanisms often introduce interference from numerous irrelevant speakers or background noise, which not only increases computational burden but may also reduce the model's discrimination accuracy, this invention provides an online speaker logging method and system based on a memory bank and weighted random delay. The online speaker logging method based on a memory bank and weighted random delay includes obtaining an input acoustic feature sequence of a given length; converting the input acoustic feature sequence into a sequence of speaker activity probabilities using an online speaker logging model; wherein the online speaker logging model includes a causal embedding encoder, a convolutional lookahead layer, and a memory-aware online attractor decoder connected in series, which can fully utilize long-term future information and memory bank information, improving the ability to identify unseen speakers.

The invention relates to the technical field of network testing, in particular to a system for remotely and centrally managing a notebook computer to carry out WLAN testing. The method comprises the following steps: uniformly issuing a WLAN test task containing a target network, test duration and delay parameters through a remote centralized management end; each notebook terminal generates a random delay value according to a system load and executes a test in sequence; when the user activity is detected, automatically interrupting and recording the position; and then continuous testing is recovered according to the interruption position, and finally a complete testing result and interruption information are uploaded to a management end. Unified management and peak shifting execution of multi-terminal WLAN testing are achieved through a remote centralized issuing and intelligent delay scheduling mechanism, and the stability and continuity of the testing process and the integrity and reliability of the result are guaranteed by combining the user state monitoring and interrupted testing technology.

Method, modules and a system formed by connecting the modules for controlling payloads are disclosed. An activation signal is propagated in the system from a module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to external power source such as AC power.

The embodiment of the invention provides a simulation control method, device and system for a smart home and a medium, and the method comprises the steps: entering a simulation control mode in response to a control starting instruction, obtaining the starting time and ending time of simulation of the smart home, and enabling each target device of the smart home to have a corresponding starting state; when the current time reaches the starting time, starting timing after a first random delay time period is randomly generated, and after timing of the first random delay time period is finished, controlling at least one target device to execute a state overturning action for the starting state once; entering a cycle control stage, starting timing after a second random delay time period is randomly generated in each cycle control period, and controlling at least one target device to execute a state overturning action once after timing of the second random delay time period is finished, and entering a next cycle control period; and when the current time reaches the end time, the cycle control stage is terminated, and the analog control mode is quitted, so that the intelligence of the smart home is enhanced.

The invention discloses a satellite positioning signal forwarding method and device and electronic equipment, the method is applied to the field of signal processing, and the method comprises the following steps: receiving an original signal, and adding random delay in the original signal according to delay configuration information to obtain an encrypted signal, the original signal being a satellite positioning signal comprising a plurality of frequency bands; the encrypted signal is sent to a target terminal, the target terminal is a terminal device used by a target user, the target user is a user who purchases a satellite positioning service, and the target terminal decrypts the encrypted signal based on the frequency band information of the original signal and the authorization information, determines the position information of the target user according to the decrypted signal and sends the position information to the target terminal. The authorization information is authorization information provided for the target user by the satellite positioning service. Through application of the signal encryption method and device, the problem that the payment user positioning efficiency is relatively low due to the relatively long processing flow when the satellite positioning signal message data is encrypted by a traditional signal encryption method in the related technology is solved.

The invention relates to the technical field of chip software security, and discloses a chip software code anti-attack protection method, a chip and electronic device.The method comprises the steps that in the running process of a chip software code, when the chip software code is executed to the position of a burying point, a random delay duration is generated, and the burying point is arranged at a to-be-protected node in the chip software code; pausing a main process of the chip software code and continuing the random delay duration; and after the random delay duration expires, recovering the main process of executing the chip software code. Based on the above method, for two or more fault injection attacks, random delay at the burying point enables the starting time of the key protection step to be uncertain, an attacker cannot repeatedly match the attack point, and key inspection is difficult to skip; for side channel attacks, random delay makes information such as execution time, chip power consumption and the like irregular, and attackers cannot extract rule features to reversely deduce sensitive data, so that attack logic is fundamentally cracked, and the security defect of an existing anti-attack protection scheme is made up.

The invention discloses a safety control method for a random sampling power system, belongs to the technical field of power system control, and considers a general framework of an uncertain transfer rate matrix. Simulating a sensor signal problem in a power system by using a semi-Markov process in a random sampling and denial of service attack scene; an asynchronous controller model is constructed, and a controller model under denial of service attack is obtained; a transmission sequence with a double-randomness characteristic is established, probability distribution of an attacked signal and random delay is given, and a continuous delay system with double randomness is obtained; a linear matrix inequality method is adopted, and sufficient conditions for ensuring that the system has performance mean square index stability are deduced. According to the gain matrix of the asynchronous controller and given system parameters, safety control over the power system with the uncertain transfer rate under the denial of service attack is achieved.

The present application relates to the technical field of network testing, and particularly relates to a system for remotely centrally managing notebook computers to perform WLAN testing. The method comprises the following steps: a WLAN testing task containing a target network, a testing duration and a delay parameter is centrally issued by a remote central management terminal; each notebook terminal generates a random delay value according to system load and performs testing in sequence; when a user activity is detected, the testing is automatically interrupted and the position is recorded; then, the testing is resumed according to the interruption position, and finally, the complete testing result and interruption information are uploaded to the management terminal. The present application realizes unified management and staggered execution of multi-terminal WLAN testing through remote centralized issuance and intelligent delay scheduling mechanism, and guarantees the stability, continuity of the testing process and the integrity and reliability of the result by combining user state monitoring and interruption and resumption technology.

The application discloses a virtual digital outbound intelligent customer service system based on generative AI, and relates to the technical field of virtual customer service management.The application solves the technical problems of lack of effective monitoring mechanism for service quality and single encryption processing mode for interactive data.The application monitors the overall state of the intelligent customer service in real time through the calculation of multi-dimensional indexes such as the knowledge anchor point answer rate, semantic ambiguity answer proportion and high-frequency complaint problem correlation rate, so as to facilitate the targeted optimization of the knowledge base, answer template or service process by the management personnel, improve the user service experience and system reliability, generate random modification features for the data packet byte size, dynamically bundle data packets and send them in random order, introduce a random delay transmission strategy, effectively interfere with the analysis of the traffic characteristics by attackers, prevent data eavesdropping and content tampering, and guarantee the safety and privacy of the user interactive information in the transmission process.

The application discloses a method for optimizing phase-locked loop spur by using additional random delay and a phase-locked loop. A long-time average fixed and short-time size random delay generator is added to a suitable position of the phase-locked loop, so that the fluctuation of a tuning voltage of the phase-locked loop due to non-ideal effects such as limited loop gain, system mismatch and clock feedthrough is randomized in time in each cycle, thereby distributing the energy originally gathered near the fluctuation frequency and harmonic frequencies to the full frequency spectrum, and effectively reducing the phase-locked loop spur. The application can simply and effectively reduce the phase-locked loop spur, and has universality in different architecture phase-locked loops.

The embodiment of the invention relates to a passive optical network activation method, equipment, a device and a medium. According to an example embodiment of the present disclosure, a first device transmits first information to a second device. The first information indicates a first random delay value generated at the first device and a first sequence number of the first device. The first device also receives second information from the second device. The second information indicates an identification allocated by the second device, and one or more of a second random delay value or a second sequence number. In this way, the serial number can be prevented from being stolen by malicious equipment, and meanwhile it can be ensured that the first device can accurately recognize the identifier allocated to the first device by the second device.

The invention relates to the technical field of Internet of Things intelligent equipment, and discloses an express delivery partition cabinet searching and reporting method based on adaptive interval adjustment. A plurality of express delivery partition cabinets are connected with a gateway through Bluetooth. The method comprises the following steps: the gateway sends a scanning instruction with a preset total reporting time window to the plurality of express delivery partition cabinets; a plurality of express delivery partition cabinets receive and analyze the scanning instruction, record respective starting time, generate a first random time interval according to a total reporting time window, and report own state information to the gateway when the time is expired; in the total report time window, the gateway keeps a monitoring state and receives report data from a plurality of express partition cabinets; and the plurality of express partition cabinets judge whether the current time exceeds the total reporting time window or not, if not, a new random time interval is generated and reported to the gateway again when the time expires, and reporting is stopped until the current time exceeds the total reporting time window. According to the invention, random delay dispersed reporting is adopted in the total reporting time window, so that a large number of express delivery partition cabinets are prevented from sending data at the same time, Bluetooth channel conflicts are obviously reduced, and the reporting success rate is improved.

The invention relates to the technical field of wireless electronic detonation. The invention discloses a method for avoiding state perception conflicts based on an earth surface wireless detonator. The method comprises the following steps: the wireless detonator receives a broadcast command from an exploder; according to the type of the broadcast command and the state of the wireless detonator, deciding whether response is needed or not; if the decision is that response is needed, generating a random delay time, and sending response data to the exploder after the random delay time expires; and if the decision is that the response is not needed, the wireless detonator enters a silent state. The technical problem that effective information of the exploder cannot be analyzed due to signal superposition interference and then the state of the system is misjudged is solved, and related potential safety hazards in blasting operation are eliminated. Meanwhile, the method is simple in logic, conflict avoidance is realized only through local decision and random delay of the wireless detonators, and the method is adaptive to a large blasting engineering scene in which the exploder and hundreds to thousands of wireless detonators are networked.

The invention discloses a self-adaptive feedback period distributed clock synchronization method, and belongs to the technical field of wireless self-organizing network time synchronization. Aiming at the problem of large clock drift and offset estimation error caused by random communication time delay, the invention provides a method based on an exponential distribution random delay model, adopts maximum likelihood estimation on relative clock parameters, obtains a clock frequency drift rate and clock frequency offset by utilizing an iterative reweighted least square (IRLS) method, and compensates the clock offset through closed-loop feedback joint. The clock synchronization precision is improved by adopting an error-driven self-adaptive feedback period, and the communication overhead is controlled at the same time. The method is low in calculation complexity, can achieve rapid convergence under dynamic topology, improves the time consistency of the whole network, and is suitable for scenes such as a wireless self-organizing network, the Internet of Vehicles and an unmanned aerial vehicle cluster.