Digitalized body temperature probe and device and body temperature detection method

Abstract

The invention discloses a digitalized body temperature probe and device and a body temperature detection method. The probe is internally provided with a temperature sensor, an analog-digital conversion unit and a data transmission interface unit. The device is provided with one or more probes, a transmission wire and a data connection plug. The method comprises the steps of 1, utilizing the temperature sensor in the body temperature probe for detecting body temperature data; 2, utilizing the analog-digital conversion unit in the body temperature probe for converting a simulation body temperature signal into digital body temperature data and transmitting the digital body temperature data to external equipment. According to the digitalized body temperature probe, temperature sensing, analog-digital conversion and data compression are integrated into the digitalized body temperature probe, the high accuracy digitalized body temperature data are output, simulation temperature measurement circuits do not need to be arranged in other equipment connected with the probe, the data can be read directly only through a general serial port, and connection circuits are simplified; the body temperature data are transmitted in a digital mode, the anti-interference performance in the signal transmission process is enhanced, and the measurement precision and measurement accuracy are greatly improved.

Description

technical field [0001] The invention relates to the field of body temperature measurement, in particular to a digital body temperature probe and a body temperature detection method. Background technique [0002] Body temperature measurement is one of the most commonly used vital signs checks, and is widely used for fever and hypothermia checks. Temperature measurement can use a single-check electronic thermometer, or a temperature module in a multi-parameter monitor, which is commonly used in continuous temperature measurement of clinical patients. [0003] In the prior art, the body temperature module consists of two parts: a body temperature probe for analog signals, a bridge temperature measurement analog circuit, and an analog-to-digital conversion circuit connected thereto. Typically, an analog body temperature probe consists of three parts: a temperature sensor, a connecting wire for transmitting an analog body temperature signal, and a signal connection plug. The bo...

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Problems solved by technology

The body temperature probe of this analog signal has the following problems: the consistency is poor, in order to maintain consistency, it is necessary to select a small error from a large number of temperature sensors, which increases the cost; the signal from the temperature sensor is weak, and the analog signal line is within 1.0 meters To the range of 2.0 meters, it is easy to be interfered and cause measurement errors; the measurement results are highly dependent on the bridge temperature measurement analog circuit in the monitor, which makes different types of temperature probes less versatile, and there are also temperature probes of the same model but different batch numbers Error; the contradiction between the current of the body temperature probe and anti-interference, the internal temperature rise of the probe with a large current will interfere with the body temperature measurement, and the signal will be small if the current is small, and the signal is easily interfered by external power frequency; because the source of the measurement error includes the consistency error of the sensor, the bridge Problems such as temperature measurement error, analog-to-digital conversion error, and susceptibility to environmental interference reduce the accuracy of the entire body temperature measurement

In addition, if multi-point body temperature measurement is required, multiple body temperature probes must be used, and the monitor must also reserve multiple body temperature sockets and measurement circuits

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