To-be-tested physical information acquisition method and device, computer device and storage medium

Abstract

The invention relates to a to-be-tested physical information acquisition method and device, a computer device and a storage medium. The method comprises the steps of obtaining a target sampling gain parameter; wherein the target sampling gain parameter is determined according to a pre-sampling value acquired by a sensor, the sensor has a plurality of corresponding sampling intervals, each sampling interval corresponds to different sampling gain parameters, and the target sampling gain parameter is a parameter corresponding to a sampling interval to which the pre-sampling value belongs; amplifying a signal input into the sensor according to the target sampling gain parameter, and performing data acquisition to obtain a current sampling digital quantity; converting the current sampling digital quantity to obtain a corresponding current sampling value, and determining to-be-measured physical information according to the current sampling value, thereby realizing dynamic adjustment of gain parameters, amplifying input information to different degrees when the to-be-measured physical information is in different ranges. The detection precision can be improved while the analog-to-digital conversion module is not replaced, and the adjustment cost and the detection precision are both considered.

Description

technical field [0001] The present application relates to the field of computing technology, in particular to a method, device, computer equipment and storage medium for acquiring physical information to be measured. Background technique [0002] With the development of microprocessor and sensor technology, the application of digital sensors is becoming more and more extensive. The digital sensor is mainly composed of a sensing element, a conditioning circuit, a main control chip and a communication module. External devices can read the specific value of the physical quantity to be measured from the digital sensor through the interface of the communication module. [0003] Under the condition that the main control chip remains unchanged, for the built-in analog-to-digital conversion module of the digital sensor, the corresponding number of sampling bits is fixed, and the corresponding quantization error is also fixed. As the amount to be measured decreases, the relative err...

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Problems solved by technology

[0004] However, the above method often requires additional adjustment of the digital sensor, and the price of the analog-to-digital conversion module with a higher number of sampling bits is high, and it is difficult to take into account both the detection accuracy of the physical quantity to be measured and the adjustment cost of the digital sensor.

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