Full-scale wireless inclination angle measuring system and method

Abstract

The invention relates to a full-scale wireless inclination angle measuring system and method. The measuring system comprises a microprocessor, wherein the microprocessor is connected with an inclination angle sensor, the microprocessor is connected with a upper computer through a first wireless receiving-transmitting module and a second wireless receiving-transmitting module, the inclination angle sensor consists of three single-axis accelerometers, and the three single-axis accelerometers are uniformly distributed according to the directions of sensitive axe of the three single-axis accelerometers to form a 120-degree angle in a same vertical plane; the measuring method comprises the following steps of respectively measuring an acceleration value of the respective sensitive axis by utilizing the three single-axis accelerometers of the inclination angle measuring sensor, transmitting the acceleration values to the microprocessor to be judged, selecting the accelerometer with the highest sensitivity in the three accelerometers as evidence for calculating the inclination angle, performing Kalman filtering, displaying the inclination angle in real time through a liquid crystal screen of an output display module, transmitting the inclination angle to the upper computer through the first wireless receiving-transmitting module and the second wireless receiving-transmitting module, and storing data so as to carry out subsequent processing on the data. By adopting the full-scale wireless inclination angle measuring system and method, the inclination angle measurement with the high precision and stability is realized in the range of 0 to 360 degrees.

Description

technical field [0001] The invention relates to the technical field of inclination measurement, in particular to a full-range wireless inclination measurement system and a measurement method. Background technique [0002] At present, the inclination measurement system is widely used in construction, machinery, roads, bridges and geological exploration and other engineering fields that require inclination measurement. With the continuous expansion of the application range of this type of inclination measurement system, higher requirements are put forward for the measurement system. , that is, it is hoped that the measurement accuracy is high and the measurement range is large. The currently applied inclination measurement systems mainly include the following measurement methods: The traditional inclination measurement methods can be divided into three types: "solid pendulum", "liquid pendulum" and "gas pendulum" according to their working principles. Their measurement accura...

AI Technical Summary

Problems solved by technology

Based on the inclination measurement method of the dual-axis orthogonal accelerometer, the two sensitive axes of the accelerometer are in the range of different output characteristics during the measurement (for example, the X sensitive axis is in the range of high linearity and resolution, while the Y sensitive axis is in the range of high linearity and resolution). In the range of relatively poor linearity and resolution), the method of using the ratio of two-axis measurement data to determine the inclination angle increases the difficulty of determining the measurement sensitivity, which will make the measurement accuracy and stability not high

In addition, whether it is a single-axis measurement system or a dual-axis measurement system, it is impossible to eliminate or reduce factors that affect the accuracy of the accelerometer during use, such as ambient temperature changes, site base vibration, and external random interference.

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