Skid type AGV (automatic guided vehicle)

Abstract

The invention relates to a skid type AGV (automatic guided vehicle). The skid type AGV comprises a main frame, double-belt wheel drive devices, a ground wheel drive device, direct-current servo motors, a storage battery, a PGV color recognition sensor and an obstacle recognition sensor, wherein the double-belt wheel drive devices are symmetrically arranged on the middle position of the main frame bilaterally; the two direct-current servo motors which are connected in the main frame are in transmission connection with the two double-belt wheel drive devices respectively; the ground wheel drive device comprises a left front wheel, a right front wheel, a left rear wheel and a right rear wheel, the left front wheel and the left rear wheel are in same-direction synchronous rotation, and the right front wheel and the right rear wheel are in synchronous same-direction rotation; a transmission structure of the AGV is realized by utilizing double synchronous belt wheels and a reduction supporting structure, so that the AGV has the mechanical type self-adaptive four-wheel-drive capacity. Furthermore, the color recognition sensor is applied to substitute a conventional magnetic navigation and RFID (radio frequency identification device) location mode with a color navigation and two-dimension code location mode, so that the navigation precision is improved, and the product cost and the using cost of the product are reduced.

Description

technical field [0001] The invention relates to the technical field of industrial equipment, in particular to a sliding AGV navigation trolley. Background technique [0002] AGV is the abbreviation of (Automated Guided Vehicle), which means "automatically guided transport vehicle". The transport vehicle with load function, AGV belongs to the category of wheeled mobile robot (WMR—Wheeled Mobile Robot), also known as transfer robot, and most of the occasions where AGV is used are mostly in factories with a high degree of automation. [0003] The driving method of AGV is the most critical technology of AGV. The driving method directly affects the design of the car body structure, walking performance, etc., and indirectly affects the bearing performance, positioning accuracy, etc., so it determines the main performance of the AGV The range of capabilities for the parameter. At present, the most common driving method in AGV is the differential drive method, and there are three ...

AI Technical Summary

Problems solved by technology

[0006] Commonly used navigation and positioning modes mainly have the following disadvantages: affecting the flatness of the ground, low positioning accuracy, and high layout costs

The magnetic strip has a certain thickness. When the magnetic strip guide rail is laid, the magnetic strip will be higher than the ground. When the AGV forms to the fork, the driving wheel needs to cross the magnetic strip, which will cause the ground flatness problem

At the same time, in general, the accuracy of magnetic navigation sensors is not high

On the other hand, the price of magnetic strips and RFID radio frequency tags is relatively high, which increases the cost of the overall layout to a certain extent

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