Serially concatenated system, data transmission method, master device and slave devices

Abstract

The invention discloses a serially concatenated system, a data transmission method, a master device and slave devices. The concatenated system consisting of the master device and at least two slave devices is adopted for transmitting, receiving and forwarding data. The method comprises that: the master device puts a device number of a target slave device into data to be transmitted and transmits the data to an intermediate slave device concatenated with the master device; the intermediate slave device receives data transmitted by adjacent upstream equipment, calculates whether a data check digit is correct or not, and returns a check result serving as an acknowledgement frame to the upstream equipment; and whether the device number digit is the same as that of the current device is judged, if so, contents in a data area are processed, and the data transmission is finished, otherwise, the data is continuously transmitted to the next-level intermediate slave device.

Description

technical field [0001] The invention relates to a data transmission technology, in particular to a serial cascading system, a data transmission method, a master device and a slave device. Background technique [0002] With the development of electronics, communication and other fields, communication between different devices is becoming more and more important, and the number of devices that need to transmit information is gradually increasing, and the application of data transmission between multiple devices is becoming more and more common. Generally, in order to realize data transmission between multiple devices, the prior art adopts a star structure, that is, one sending device sends data to multiple receiving devices respectively. In this data transmission mode, when there are a large number of receiving-end devices, the sending-end devices need to have a large number of interfaces and connecting cables. This star structure brings inconvenience to the maintenance of the...

AI Technical Summary

Problems solved by technology

However, the current serial cascade system does not propose a specific data transmission scheme, and the intermediate equipment of the cascade system cannot reflect the transmission status of the data in time. Only when the data is transmitted to the terminal equipment or the destination equipment can it be judged whether the data transmission is correct and Complete, so that when there is a problem in data transmission, it cannot be found in time, resulting in a decline in data transmission efficiency

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