Daisy chain topology-based sensor array data acquisition system

Abstract

The invention provides a daisy chain topology-based sensor array data acquisition system. One side pins of sensors (1) are mutually connected and are finally connected to an electric wire grounding end (6) of a system-level integrated circuit chip (5) with an analog-digital converter; the other side pins of the sensors (1) are connected to one side pins of corresponding single-pole single-throw switches (3); the other side pins of the single-pole single-throw switches (3) are mutually connected and are finally connected to a port of the analog-digital converter (7) of the system-level integrated circuit chip (5) with the analog-digital converter; and controllers, namely, digital logic circuits (4) of the single-pole single-throw switches (3) are mutually connected and are finally connectedto a digital input / output connection interface (8) of the system-level integrated circuit chip (5) with the analog-digital converter. The data acquisition is carried out by using a daisy chain topology-based sensor array, so that the routing complexity and the component cost are reduced, and the system stability is improved.

Description

technical field [0001] The invention relates to a distributed data acquisition system through a sensor array, in particular to a sensor array data acquisition system based on a daisy chain topology, which belongs to the technical field of information science. Background technique [0002] With the advent of the Internet of Things era, distributed sensors have been widely used. In particular, sensor array data collection has many applications in the national health and medical fields, such as sleep monitoring, fetal monitoring, EEG monitoring, ECG monitoring, and body temperature monitoring, all of which require sensors to be distributed in various parts of the body; in addition, in 5G And in the field of millimeter-wave radar, since the phased array system used for high-frequency signal transmission and reception also has 64 or 128 antenna array scenarios, it is necessary to connect multiple antennas or sensor unit arrays. However, at present, parallel connections are mainl...

AI Technical Summary

Problems solved by technology

However, at present, it is mainly connected in parallel, that is, N sensors need to be connected by multiples of N wires. This topology makes the wires of the entire system very messy and disorderly, which greatly affects the reliability and robustness of the system.

Therefore, the traditional parallel connection method of sensors is no longer applicable when the number of sensors is greatly increased.

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