Monitoring method and device for automatic calibration of weighing base in no-load state

Abstract

The invention relates to a monitoring method and device for automatically weighing a foundation under the idle state. The device performs the automatic zero returning operation through the method. Themethod comprises the steps of monitoring the communicating state of an infusion monitor, obtaining online state information of a communication module of the infusion monitor, and judging whether theinfusion monitor is in the using state or not; monitoring the load state of the infusion monitor, continuously obtaining load data of the infusion monitor, and judging whether the infusion monitor isin the idle state or not according to the load data; monitoring the direction state of the infusion monitor, obtaining direction information of the infusion monitor, and according to the direction information, judging whether the infusion monitor is in the longitudinal suspension state or not; during the using state, idling and longitudinal suspension, tare zero setting of the infusion monitor isautomatically performed. The device can automatically recognize the idle state, a tare null offset value of a sensor is subjected to timely zero return correction, the alarm precision of each infusionis fundamentally ensured, manual operation intervention is reduced, and clinic rapid usage is convenient.

Description

technical field [0001] The invention relates to a tare weight reset method of an infusion monitor and a corresponding device. Background technique [0002] The current weighing principle of the load cell is the difference between the gravity ADC value of the mounted object and the empty tare ADC value (zero point), and then multiplied by the linear proportional coefficient of the load cell to obtain the real-time weight of the current object. However, because the load cell is affected by stress creep, ambient temperature, and humidity, its no-load tare weight ADC value will vary over time, so it is necessary to reset the current no-load tare weight to zero before weighing. Necessary. Zeroing is a common operation during weighing. This operation is the premise to ensure the accuracy of each weighing data. Especially in the medical field, precise control of the amount is very necessary. [0003] The existing hospital mobile infusion closed-loop monitoring system monitors the...

AI Technical Summary

Problems solved by technology

The infusion monitor using the traditional weighing sensor tare weight reset has the following disadvantages: the nurse on duty needs to manually press the button to reset the tare weight before the infusion, which increases the workload of the nurses, the steps become cumbersome, and the nurses also forget If the zero point of the tare weight is reset to zero, it will have an inaccurate effect on the alarm of the remaining liquid volume.

If there is no manual intervention to return to zero before using the load cell, the tare zero point of the sensor will shift more and more over time, so that the alarm of the remaining amount of infusion cannot be accurately performed

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