22 results about "Master/slave" patented technology

The invention provides a method, device and equipment for intelligently detecting gateway memory leak and a medium, and the method comprises the steps: deploying a lightweight AI prediction model at a main gateway, and carrying out the online learning of a memory leak mode and real-time reasoning; the slave gateway collects memory data, preprocesses the memory data, generates a memory change trend vector by adopting a dynamic sliding window, and transmits the memory change trend vector to the master gateway; the main gateway analyzes the memory change trend vector transmitted by the slave device in real time through an AI prediction model, identifies a potential leakage mode of the memory change trend vector, and performs graded early warning on an identification result; constructing a lightweight graph neural network to analyze a memory dependency relationship, evaluating a repair measure influence range, and dynamically selecting an optimal repair strategy for equipment needing to be repaired according to a historical repair effect in combination with a reinforcement learning model; and regularly carrying out data statistics and generating a whole-network visual predictive report. According to the invention, memory leak detection, classified statistics and intelligent alarm of the master / slave gateway can be realized, and the network stability is improved.

In a field bus system, the sub-users (3) each have a sub-connection (33) and a functional connection (34) connected to the sub-connection (33), wherein in each sub-user status information is acquired which indicates whether the functional connection is active or inactive. A telegram output by a master user in the field bus system has at least one data report, wherein the status information of the sub-users (3) addressed in the data report is acquired together with the telegram. Furthermore, a counter field of the data report is changed by the sub-connections (33) of the sub-users (3) which have processed the useful data field in a manner predefined for the data transmission operation performed in each case. The data report is assigned an expected value of the counter field which arises when the useful data field has been processed by the sub-users (3) addressed in accordance with the data transmission operation predetermined in the command field. The master user (2) then determines the expected value of the counter field of the data report on the basis of the status information acquired with the telegram and compares it with the value of the counter field in the data report processed by the sub-users (3) addressed in order to determine a processing error in the data report processed by the sub-users (3) addressed in the event of a deviation.

The invention discloses a highway video cloud monitoring system based on cloud side-end collaboration, which relates to the technical field of highway monitoring, adopts a hierarchical collaboration architecture consisting of a front-end acquisition layer, an edge computing layer and a cloud management layer to form a closed-loop logic link, and consists of an edge node cluster containing a master / slave node structure. Performing preprocessing, intelligent analysis and data screening on the data stream, identifying four types of traffic events and generating event metadata, and supporting cross-node data sharing and continuous event complete data chain construction; the cloud management layer comprises a calculation node, a storage node and a scheduling node, cross-node data association is achieved through data fusion, a traffic behavior model is constructed through deep modeling, decision support information is output, and edge node resource allocation, task distribution and storage strategy management and control are achieved. The data transmission pressure and the storage cost are greatly reduced, the monitoring real-time performance and the data processing accuracy are improved, and the reliability and the expansibility of the system are enhanced.

A building management system (BMS) includes building equipment operable to affect a physical state or condition of a building and a gateway device configured to couple to the building equipment via a wireless master slave / token passing (MS / TP) bus or a wired MS / TP bus. The gateway device is configured to communicate building data to a cloud-based platform including a hub configured to receive the building data, a plurality of cloud applications, wherein the plurality of cloud applications are configured to receive the building data from the hub and process the building data to provide a building data output. The cloud-based platform is configured to communicate the building data output to and receive a command based on the building data output from at least one of a control application, an analytic application, or a monitoring application. The gateway device is further configured to operate according to the command.

A local control unit operable as a master or slave device comprises: a memory, the memory indicating whether a converter subunit is enabled or disabled; and an enable; a wake-up output; a communication link input interface and a communication link output interface, the communication link input interface and the communication link output interface configured to receive and send master / slave information; and a further communication link input interface and a further communication link output interface, the further communication link input interface and the further communication link output interface configured to enable current balancing and phase staggering with other enabled converter subunits; in response to a respective local output current being above a first threshold value, sending a wake-up request to a next converter subunit; and in response to the local control unit being a slave subunit; the respective local output current being below a second threshold value, and receiving master / slave information indicating that the next enabled subunit is a master subunit, disabling itself.

The invention relates to the technical field of explosive control, and particularly discloses a relay type isolation RS-485 cascade networking concentrator for an exploder, which comprises a lithium battery power supply management module, a master node isolation RS-485 module, a multi-path slave node isolation RS-485 module and a pure hardware automatic transmit-receive direction control module. A single-branch fault does not influence the whole; the device is simple in structure, convenient to use, capable of being powered by a lithium battery and USB-C, convenient to deploy, capable of being directly connected between any master port and any slave port in series, capable of achieving random expansion of communication distance, supporting star-shaped / tree-shaped multi-stage relay networking and meeting the large-scale, safe and long-distance synchronous detonation requirements of thousands to tens of thousands of electronic detonators. The hidden danger of false triggering caused by software deadlock, time sequence drift or electromagnetic interference in a traditional scheme is avoided. And in a civil explosive electronic detonator initiation scene, the risk of error explosion caused by direction control errors is greatly reduced.

This invention provides a thermal management chip, system, and management method for a host with a built-in interface, including: a controllable current source sequence, temperature sensing device category control, an ADC module, a register group, interface, and control logic module, an NVM non-volatile memory, a clock generation module, and a local temperature sensing transistor. The thermal management chip also includes an Aip port, an Ain port, a PWM port, a TACH port, a master / slave mode selection port, an SDA port, an SCL port, and a status indicator port. This invention collects local temperature, remote temperature, and fan speed information from the thermal management chip, and flexibly controls the fan speed using a lookup table to reduce system energy consumption and extend fan life.

The invention belongs to the technical field of spaceflight embedded systems, and particularly relates to a master-slave internal bus communication design method for a spaceflight embedded system. The method comprises the following steps: designing an internal bus communication protocol frame structure and realizing communication between a master device and a slave device according to the frame structure; the designed internal bus communication protocol frame structure comprises a master / slave identifier, a frame type and a frame identifier, and the master / slave identifier is used for distinguishing whether a node for sending data in internal bus communication is a master node or a slave node; the frame type is used for distinguishing data and no data in an effective data area and is divided into a data frame and a remote frame; the frame identification is used for subdividing a data frame and a remote frame and determining the purpose of the frame, and the data frame comprises a conventional parameter-free instruction frame, a conventional parameter-carrying instruction frame, a telemetry request frame and a data transmission frame.

The embodiment of the present application relates to a kind of master-slave machine network based on the processing method of power line transceiving data signal, the method comprises: constructing master-slave machine network;When host sends high / low level data signal to slave, by host control its output level state presents opposite low / high level state and thus activate slave to complete corresponding high / low level data signal receiving processing locally;When slave sends high / low level data signal to host, on the premise that the output level state of host is high level state, by slave according to the high / low level feature of data signal, corresponding setting is completed locally by slave, and by host, according to the sampling voltage of current sampling resistance R S In host, data signal receiving processing is carried out.The difficulty and cost of implementation of master / slave machine can be reduced by the present application.

The application discloses a kind of flexible interconnection power distribution system fault-based multi-factor comprehensive evaluation master / slave station optimization switching method, comprising: 1, master station is converted to V / F control after power failure to support load, and the load power is calculated;2, by calculating the short-circuit ratio of slave station, determine that the system is in strong network or weak network environment;3, in strong network environment, screening is carried out according to power stability limit curve and controller parameter;4, in weak network environment, compare the power limit of each station by power transmission deviation threshold;5, select the site with the minimum line loss in the whole network as the new master station, switch to the constant DC voltage control, and the remaining sites maintain PQ control, so as to realize the optimization switching under fault state.The application takes stability as the premise, optimizes the master station by differentiated power grid environment evaluation, can reduce loss, improve operation efficiency, solve the parameter mismatch and power limitation problem in strong and weak network switching, and enhance the system fault self-healing reconstruction and steady-state operation ability.

Aspects of the disclosure are directed to a dynamic master slave flip flop circuit. In accordance with one aspect, the disclosure includes a master latch section configured to receive an input signal asserted at a HIGH state of the input signal; a clock circuit coupled to the master latch section, the clock circuit configured to execute a positive clock transition of a clock signal; and a slave latch section coupled to the master latch section and the clock circuit, the slave latch section configured to transition a state (Q) signal from a LOW state to a HIGH state of the state (Q) signal subsequent to the positive clock transition.

The invention relates to the technical field of networking control, and discloses a Bluetooth sound box networking control method and device and smart home equipment, a plurality of Bluetooth sound boxes are arranged in the smart home equipment, one of the Bluetooth sound boxes is configured as a host, and the remaining Bluetooth sound boxes are configured as slaves, the method comprises the following steps: after the slaves receive broadcast networking signals, sending the broadcast networking signals to the host; judging whether a first identifier corresponding to the bound host is stored on the slave side or not; if the first identifier is stored, comparing whether the first identifier is consistent with a second identifier carried by the broadcast networking signal; if yes, establishing a connection relationship with the target host so as to complete networking pairing with the target host; and if not, neglecting the broadcast networking signal. Visibly, the connection accuracy between the host and the slave in the Bluetooth sound box can be improved, the situation that audio playing is disordered due to wrong connection of the host and the slave is avoided, and the use experience of a user is improved.

Aspects of the disclosure are directed to a dynamic master slave flip flop circuit. In accordance with one aspect, the disclosure includes a master latch section configured to receive an input signal asserted at a HIGH state of the input signal; a clock circuit coupled to the master latch section, the clock circuit configured to execute a positive clock transition of a clock signal; and a slave latch section coupled to the master latch section and the clock circuit, the slave latch section configured to transition a state (Q) signal from a LOW state to a HIGH state of the state (Q) signal subsequent to the positive clock transition.

This invention discloses a centralized OLT board switching management device and method based on CPLD. The device includes: a first board and a second board, the first board and the second board being communicatively connected; a first CPLD module and a second CPLD module, the first CPLD module being communicatively connected to the first board, the second CPLD module being communicatively connected to the second board, and the first CPLD module being communicatively connected to the second CPLD module; the first CPLD module and the second CPLD module also read external master / slave button status changes and board slot numbers, and control the power-on time of the first board and the second board; a first software system and a second software system, the first software system being communicatively connected to the first board and the first CPLD module respectively, the second software system being communicatively connected to the second board and the second CPLD module respectively, and the first software system being communicatively connected to the second software system. This invention uses CPLD control to determine the master / slave status of the two master controllers, control and determine the master / slave relationship between the two master controllers, and perform control management between the two master controllers.

A master / slave system according to the present disclosure comprises: a determination unit that determines whether a manipulation interface of a master robot manipulated by a user has deviated from a prescribed work area during the operation of the master robot and a slave robot; and a synchronization switching unit that, if the manipulation interface has deviated from the prescribed work area, performs a switch so as to release synchronization between the slave robot and the master robot.

The invention discloses a master / slave switching method and a master / slave switching system for redundant CPUs (central processing units) of a PLC (programmable logic controller), which are characterized in that whether the CPUs are subjected to master-slave switching or not is determined by weight calculation according to communication states of the master and slave CPUs and equipment. The communication states of the devices comprise the communication state of the CPU and the expansion rack, the communication state of the CPU and the upper computer, the communication state of the CPU and other participating logic control systems, the communication state of the CPU and the screen and other factors. The weight calculation comprises the steps of distributing different weight ratios for each communication state so as to ensure that the key communication has a higher priority, respectively calculating the weight value of each communication state through the weight calculation, and finally summing to obtain a switching weight value. And when the switching weight value calculation result is greater than 0, CPU master-slave switching is carried out, otherwise, the original state is kept. The invention aims to solve the problems of singleness and limitation of the existing CPU master-slave switching method, and improves the accuracy and real-time performance of switching decision through a communication state weight calculation mode.

The application discloses a kind of based on application layer scheduling's half duplex two-way communication control method, equipment and medium, it is related to communication technical field, the method is suitable for the master-slave device system connected with RS485 etc. Half duplex serial communication interface, especially suitable for hydrological element measuring probe automatic release system, the application defines master / slave information role in application layer, establishes priority message queue, sets up master information period sending mechanism, and adopts "follow" sending strategy, so that slave end instruction is sent immediately after receiving master end effective frame, to avoid channel conflict, simultaneously introduce heartbeat mechanism and instruction confirmation retransmission mechanism, guarantee the stability and integrity of communication.The application does not need to change hardware structure, and only by software control can significantly improve the reliability and real-time performance of half duplex system two-way communication.

This invention provides a simulation method for PSI5 circuit boards, belonging to the field of automotive electronics testing technology. Using an FPGA as the core control unit, it directly generates and parses the PSI5 protocol timing through hardware logic. First, it completes the initial configuration of the circuit board system, then flexibly selects the master / slave dual communication mode and completes the corresponding parameter configuration. Based on a DAC / ADC chip and a differential amplifier constant current circuit, it realizes hardware-level PSI5 protocol signal generation, combined with hardware closed-loop monitoring to complete real-time monitoring of synchronization pulse capture in slave mode and current readback in master mode. Simultaneously, a fault injection module enables controllable triggering of multiple types of faults and supports synchronous simulation of multi-channel independent logic resources. Combined with a dual-mode communication module, it completes remote parameter adjustment and data interaction. This invention achieves nanosecond-level synchronization accuracy, full parameter software adjustability, and full fault injection coverage, improving the real-time performance, reliability, and test coverage of PSI5 circuit board simulation.

This invention discloses a method for master / slave switching in TWS earphones while maintaining the continuity of the master earphone's local Bluetooth clock. The master and slave earphones first establish a classic Bluetooth connection. Either earphone initiates a master / slave switching command, and the other earphone accepts and responds. Either earphone specifies the time for the next communication. At the specified time, the slave earphone sends any data packet to the master earphone, which receives and replies with an arbitrary data packet response. Upon receiving the data packet, both earphones maintain their current communication timing. The slave earphone calculates the master earphone's local Bluetooth clock and immediately changes it to its own, switching its role to master and slave. The master earphone switches its role to slave and slave. This invention avoids the Bluetooth link between the master earphone and the smart device from being disrupted by changes in the master earphone's local Bluetooth clock after a master / slave switch, thus preventing connection loss.

The application discloses a virtual power plant resource real-time response control system based on edge computing, adopts a four-level architecture of "top-level scheduling-cloud coordination-edge execution-terminal response", and core contains a power grid dispatching center, an edge-cloud linkage dispatching center, a distributed edge collaborative node cluster, a dynamic resource priority scheduling module and a fault self-diagnosis and fault-tolerant response module. The distributed edge collaborative node cluster adopts a "1 master+8 slave" partition architecture, the dynamic resource priority scheduling module is integrated in the master edge node, and the fault self-diagnosis and fault-tolerant response module fully covers the master / slave edge nodes. The control method realizes real-time response through "instruction issuing-target disassembly-priority sorting-optimized execution-closed loop feedback", the response delay is less than or equal to 30 ms, the fault identification accuracy is greater than or equal to 98%, the real-time response performance, resource adaptability and operation reliability of the virtual power plant can be significantly improved, and the data transmission pressure is reduced.

This invention belongs to the technical field of civil aircraft cabin door signal system design, and discloses a civil aircraft cabin door signal system and its control method based on automatic master / slave switching logic. The cabin door signal controller of this system includes first and second data processing and control channels, an excitation signal selection circuit, and a master / slave switching logic circuit. The excitation signal selection circuit selects one excitation signal from the two channels as the sole excitation signal source and applies it to multiple proximity sensors. The two channels independently acquire and process feedback signals under the same excitation source. The master / slave switching logic circuit operates independently of the two channel processors, using only the channel status signal output by the processor as input to control the selection of the excitation signal source and the switching of the control signal output path. This invention eliminates the processing deviation of the master / slave dual-channel sensors and achieves reliable master / slave switching independent of the processor.