8 results about "Master/slave" patented technology

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 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.

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.

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.