Abstract
The article is devoted to the development of algorithmic support of the inclinometric control system built on the basis of accelerometers using the phase-metric method. This system is used to automated control the deviation of the angular parameters of the building axis from the vertical. An algorithm for data collection and transmission has been developed that allows automatic data collection from the accelerometer network via the 802.11 b/n/g interface. An algorithm for calculating the angle of deviation of the building axes from the vertical is developed on the basis of the phase-metric method. According to this algorithm for determining the angle, it is necessary to register the moments of crossing the reference signal zero and the signal of the accelerometers are fixed along the construction axes. The time difference of the zero values of the signals in each of the periods will be equal to the deviation angle of the building axis from the vertical. To implement the phase-metric method of angle measurement, an algorithm is developed for the sub-program of the zero-crossing detector. This algorithm describes the sequence of operations of comparing signals for the transition of the value of the signal parameters from positive to negative and vice versa. In the final section, the error of the developed software implemented in the experimental inclinometer installation was estimated.
Highlights
Inclinometric control is an integral part of the systems of geotechnical monitoring of buildings and structures [1]
The requirements for the accuracy and reliability of the measurement information obtained with modern measuring inclinometers are very stringent, which determines the increased conditions for their metrological characteristics and reliability characteristics. The solution of this problem is the system of inclinometric control developed by the authors of this article on the basis of accelerometers [4,5,6]
This algorithm is a sequential cyclic conversion of signals from accelerometers recorded in real-time measurement arrays
Summary
Inclinometric control is an integral part of the systems of geotechnical monitoring of buildings and structures [1]. The requirements for the accuracy and reliability of the measurement information obtained with modern measuring inclinometers are very stringent, which determines the increased conditions for their metrological characteristics and reliability characteristics The solution of this problem is the system of inclinometric control developed by the authors of this article on the basis of accelerometers [4,5,6]. This algorithm is a sequential cyclic conversion of signals from accelerometers recorded in real-time measurement arrays. The total execution time of the main program cycle is determined by the hardware characteristics of the microprocessor included in the measuring system In this case, the time determines the time interval between the counts of the sensors interrogation. The condition for the program to close is pressing the reset button, which is polled at the beginning of the main program cycle
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