A machine vision-based asphalt mixture loading system and control method

Abstract

The invention discloses an asphalt mixture loading system and control method based on machine vision. The system includes a van loading room, a material door mechanism, a vehicle moving platform and a machine vision control system. The vehicle moving platform includes a crawler flat plate , a longitudinal beam support, a roller mechanism and a roller driving mechanism, the machine vision control system includes a control module, an illumination device, a rotary encoder and a pressure sensor, as well as a video camera and a photoelectric sensor; the control method includes: step 1, asphalt mixture loading Preparations before the vehicle; Step 2, setting the loading parameters of the asphalt mixture; Step 3, fast flat loading; Step 4, precise flat loading; Step 5, pouring out the loading vehicle and recycling the material. The invention has the advantages of reasonable design, simple operation and good use effect, real-time control of the loading process of the asphalt mixture, realizing automatic flat loading of the asphalt mixture, effectively reducing the loading segregation of the asphalt mixture, and reducing environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of asphalt mixture loading control, and in particular relates to a machine vision-based asphalt mixture loading system and a control method. Background technique [0002] Nowadays, the loading of finished asphalt mixture in the asphalt mixing plant is still manually controlled. The operator in the control room of the batching plant observes the loading situation and controls the material door, directs the driver to move the vehicle through voice or signal lights, and fills the entire compartment one by one. The quality of manual loading is directly affected by the operator and the driver, and the operator needs to be close to the loading site of the asphalt mixture. The asphalt mixture is likely to bring hidden dangers to the health of the operator; The labor intensity is high, and it is easy to produce fatigue and cause production accidents. Therefore, it is necessary to effectively control the loading of...

AI Technical Summary

Problems solved by technology

Although this system avoids the influence of experience and fatigue on the loading quality to a certain extent, there are still some problems

First of all, the loading method is still the stockpile loading method. During the stockpile loading, the asphalt mixture rolls down along the stockpile surface to the bottom to produce segregation, which affects the homogeneity and service strength of the road surface; secondly, the control reliability of the loading process Low, different types of vehicles make the detection result of the depth of the cabin unreliable or the vehicle delays the parking position, resulting in the problem of overflow or lack of material

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