Infant incubator baby continuous weighing method

Abstract

The invention discloses a continuous baby weighing method of a baby incubator. The method comprises the following steps: firstly, constructing a baby scale; secondly, adjusting the baby scale: 1: a, measuring tare weight Wp; b, measuring gross weight Wo; c, calculating a value of weight sampling net weight W at the temperature To; d, calculating a standard weight coefficient Kw; e, sampling the temperature To during calibration; and f, storing data; and 2, determining a temperature compensation coefficient; thirdly, running the baby scale; and fourthly, holding a baby to automatically remove the tare weight. The advantages of the method are mainly as follows: the baby scale adopts a common weighing chip and a common weighing sensor, and a temperature compensation mode through a program written by a single-chip microcomputer enables continuous weighing to be realized and is high in cost performance; and the adoption of a hear dissipation fin arranged on the weighing chip solves a problem that temperature changes are inconsistent when the weighing chip and the weighing sensor stay in a temperature changing environment, and effectively prevents a zero drift problem.

Description

technical field [0001] The invention relates to an infant incubator, in particular to a method for continuously weighing babies in an infant incubator. Background technique [0002] Baby weight is an important indicator to judge whether the baby is developing normally or not. The change of newborn's weight is one of the important basis for judging the health and condition trend of newborns in the process of training and treatment. Therefore, it is very important to measure the baby's weight conveniently, accurately and continuously. [0003] At present, most of the electronic baby scales used in clinical baby incubators are based on the principle of ordinary electronic scales, so there are the following problems: 1. The time that the objects called by ordinary electronic scales stay on the weighing pan is relatively short. Short, so "zero drift" is not considered during weighing, just zeroing (automatically or manually) before weighing. For baby scales with continuous wei...

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Problems solved by technology

[0003] At present, most of the electronic baby scales used in clinical baby incubators are based on the principle of ordinary electronic scales, so there are problems in the following aspects: 1. The time that the objects called by ordinary electronic scales stay on the weighing pan is relatively short. Short, so "zero drift" is not considered during weighing, just zeroing (automatically or manually) before weighing

For baby scales with continuous weighing, the baby stays on the scale for a long time (days or even weeks), which makes it impossible to distinguish between zero drift and monitoring baby weight changes. To distinguish between these two changes, only Do a single timed measurement, which is far from meeting the needs of big data collection

2. The zero point drift of baby scales is mostly caused by temperature drift. If a temperature-compensated load cell is used, not only the price is extremely high, but it is difficult to promote the use of baby scales to hospitals at the municipal level and below. At the same time, the temperature-compensated weighing sensor For heavy sensors, in the changing temperature environment, there is also the problem that the temperature changes of the weighing chip and the weighing sensor are not synchronized

3. During the weighing and monitoring of newborns in the infant incubator, after the medical staff regularly remove feces, urine and other debris from the newborns, they need to re-tare the baby scales. Frequent tare operations are extremely inconvenient

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