Patent AU-2021277660-B2 (AU)
Title: Daisy chain two-wire sensor measurement system and method
Inventor: ZHAO CHUNMENG
IPC: H04L12/02
Filed: 2021-06-21
Granted: 2023-02-23
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(54) Title: DAISY CHAIN TWO-WIRE SENSOR MEASUREMENT SYSTEM AND MEASUREMENT METHOD THEREFORE 
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(57) Abstract: The present invention relates to the technical field of communications, and in particular to a daisy-chain two-wire sensor 
measurement system and a measurement method therefor, comprising: one or more slave modules, connected to one or more sensors, 
00 and modulating a detected sensor signal into a corresponding current signal; a master module, used for being sequentially cascaded to 
a first slave module in the one or more slave modules, and an upper-level slave module and a lower-level slave module by means of a 
daisy chain line to form a daisy chain sensor network, and interconnected with an upper computer by means of a communication line; 
and the daisy chain line, used for supplying power and simultaneously transmitting the current signal modulated by the slave module, 
so that the master module obtains and decodes the current signal to obtain corresponding sensor data. The present invention has the 
CAiadvantages of low power consumption, no need for an address, data transmission channel sharing, low system costs, easy installation 
for a device and the like.
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