DATA ACQUISITION APPARATUS AND SYSTEM

摘要

A data acquisition system includes a terminal device and a plurality of data acquisition apparatuses located at multiple layers and communicating with the terminal device. Each of the plurality of data acquisition apparatuses includes a control unit, a data obtaining unit, a data transmission unit, and a detection unit. The data obtaining unit is electronically coupled to the control unit and directed by the control unit to obtain data from articles. The data transmission unit is electronically coupled to the terminal device, and the plurality of data acquisition apparatuses are interconnected via the data transmission unit to send the data to the terminal device. The detection unit detects whether the plurality of data acquisition apparatuses cooperatively form a communication loop, and outputs an indication signal if the communication loop is formed among the plurality of data acquisition apparatuses.

主权项

1. A data acquisition apparatus communicating with a terminal device or/and at least one external data acquisition apparatus, the data acquisition apparatus comprising:
a control unit; a data obtaining unit electronically coupled to the control unit and directed by the control unit to obtain data from articles; a data transmission unit configured to be electronically coupled to the terminal device or/and the at least one external data acquisition apparatus for allowing the data acquisition apparatus to send the data to the terminal device or/and the at least one external data acquisition apparatus; and a detection unit configured to detect whether the data acquisition apparatus and the at least one external data acquisition apparatus cooperatively form a communication loop, and output an indication signal if the communication loop is formed among the data acquisition apparatus and the at least one external data acquisition apparatus.