Magnetic navigation sensor system and control method thereof

Abstract

The present invention proposes a magnetic navigation sensor system and a control method thereof. The device is characterized in that a signal acquisition module and a single-chip microcomputer are connected; the signal acquisition module includes 16 signal acquisition units; each said signal acquisition unit includes: Connected Hall sensors and amplifying circuits; the 16 Hall sensors are located on the same plane, arranged in a straight line and facing the ground; each of the Hall sensors, amplifying circuits, and single-chip microcomputers is separately powered by a power module; The Hall sensor is connected with a temperature compensation circuit; the single-chip microcomputer includes a digital-to-analog converter and an analog-to-digital converter; the single-chip microcomputer is connected with a key input device and a display screen, and communicates with the AGV main controller through a serial port and / or a CAN bus connect. The temperature compensation method adopted by the invention has a simple structure and good effect, and the performance of the amplifying circuit is superior, and the problems of temperature drift and noise interference are well solved through the calculation of voltage difference and the method of weight filtering.

Description

technical field [0001] The invention belongs to the field of magnetic navigation sensors, in particular to a magnetic navigation sensor system capable of accurately detecting the position of a magnetic strip and a control method thereof. Background technique [0002] AGV is widely used in actual production, and guiding technology is one of the key technologies of AGV. At present, the commonly used guidance methods include magnetic guidance, laser guidance, visual guidance and so on. The laser-guided AGV can accurately position the trolley, and no other positioning facilities are needed on the ground, and the driving path can be changed flexibly. But its investment cost is high, and it has strict requirements on the environment. The accuracy of vision-guided AGV is not very high, and most of them need other positioning systems to assist, and the investment cost is high. The magnetic guidance AGV sensor can obtain the position or attitude information of the car by detecting...

AI Technical Summary

Problems solved by technology

However, the current magnetic strip guidance detection devices in the market have poor versatility, and the sensors on the market generally have insufficient processing of temperature drift and noise interference, which makes it difficult to give full play to the excellent performance of magnetic navigation and sensors that can obtain accurate offset distances higher price

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