Real-time soil body category identification method and system and excavator

Abstract

The invention belongs to a soil body category identification method, and discloses a real-time soil body category identification method, which comprises the following steps: A) collecting a vibration signal: collecting the vibration signal of an excavation and tunneling mechanism through a sensor arranged on the excavation and tunneling mechanism; B) acquiring signal characteristics: analyzing time domain and frequency domain characteristics of the vibration signals in the operation process in real time by using a set signal processing algorithm; and C) identifying the category of the soil body: comparing the analysis result with the calibration values of the time domain and frequency domain characteristics of various soil bodies in the soil body category database so as to judge the category of the soil body. According to the soil body category identification method, the soil body category can be rapidly and accurately identified. The invention also discloses a soil body category identification system, which comprises a sensor, a signal collector and a controller, wherein the controller is preset with a soil body category database, a vibration signal analysis program and a soil body category identification program; in addition, the invention further discloses an excavator with the soil body category recognition system.

Description

technical field [0001] The invention relates to a soil category identification method, in particular to a real-time soil category identification method. In addition, the invention also relates to a real-time soil type identification system and an excavator. Background technique [0002] During the construction of ordinary excavators, the excavator driver needs to control the excavator's digging posture, bucket entry angle, cylinder pressure and other parameters based on the feedback of the excavator during excavation and experience, so as to facilitate excavation of the soil and improve work efficiency. Efficiency, reduce the loss of mechanical parts, etc. [0003] If you want to realize the automatic operation of the excavator, if you want to ensure the construction efficiency and reduce the loss of mechanical parts without the experience of the excavator driver to control the parameters of the excavator, you need to obtain the soil type of the construction site in advance...

AI Technical Summary

Problems solved by technology

[0004] However, the variability of the soil on the site is large. Whether it is based on the existing geological survey data or the pre-reconnaissance of the operation area, it is impossible to accurately obtain the soil type of each excavation point, and it is also difficult to judge whether there is a hard obstacle under the soil. objects, and the existing soil type identification technology uses the actual measured resistance when the soil is destroyed and the existing soil pressure calculation model to identify the soil type. It needs to collect data during multiple excavations to identify the soil type. On the one hand, it is real-time Poor, it is impossible to identify whether a hard obstacle is encountered in real time; on the other hand, the error is large, which may easily cause misjudgment of the soil type

Images