RFID passive sensing-based infusion liquid level monitoring system and working method thereof

Abstract

The invention discloses an RFID passive sensing-based infusion liquid level monitoring system and a working method thereof. The system comprises liquid level sensing labels attached with RFID tags, aliquid level sensing integrated machine, a server platform, and a liquid level sensing client; each liquid level sensing label is a tag array composed of a plurality of passive RFID tags arranged on the outer wall of an infusion container; the liquid level sensing integrated machine transmits continuous wave signals through a reader antenna so as to continuously communicate with the liquid level sensing labels through the continuous wave signals to obtain label ID information and signal characteristics returned by the liquid level sensing labels, identifies a corresponding infusion container through an embedded processor, adjusts the power of the reader through adopting a two-stage power stepping algorithm, judges whether a highest liquid level position reaches a designated position on thebasis of the acquired label signal characteristics and continuously uploads monitored liquid level statuses to the server platform; and the liquid level sensing client continuously obtains the liquidlevel statuses of the plurality of infusion containers by accessing the server, and performs early warning once the liquid level of a certain infusion container reaches the designated position.

Description

technical field [0001] The invention relates to RFID passive sensing technology, in particular to an RFID passive sensing-based infusion liquid level monitoring system and a working method thereof. Background technique [0002] Intravenous infusion is currently a main clinical treatment method. During the infusion process, it is necessary to monitor the infusion status (such as water level, flow rate, etc.) in time to prevent accidents such as blood backflow and venous swelling caused by changes in water level and flow rate. ACCIDENT. However, at present, the monitoring of infusion is mainly realized through regular inspections by medical staff or active feedback from patients, and there are few intelligent and automated technical means to achieve accurate and real-time infusion perception. The current intravenous infusion solutions mainly include the following types: 1) Weight-based measurement monitoring: monitor the water level of infusion bottles and infusion bags based...

AI Technical Summary

Problems solved by technology

This method cannot provide early warning, cannot detect unexpected events such as venous swelling, and needs to continuously replace the battery of the infrared sensor, which is troublesome to maintain

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