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Magnetic navigation sensor system and control method thereof

A magnetic navigation sensor and control method technology, applied in the field of magnetic navigation sensors, can solve the problems of difficulty in fully exerting the excellent performance of magnetic navigation, insufficient processing of temperature drift and noise interference, and high price of sensors, so as to improve accuracy, temperature adaptability, and performance Superior, Low Offset Drift Effect

Active Publication Date: 2018-12-21
XIAMEN UNIV TAN KAH KEE COLLEGE
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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

Method used

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  • Magnetic navigation sensor system and control method thereof
  • Magnetic navigation sensor system and control method thereof
  • Magnetic navigation sensor system and control method thereof

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Embodiment Construction

[0044] In order to make the features and advantages of this patent more obvious and easy to understand, the following special examples are described in detail as follows:

[0045] Such as figure 1 As shown, the power supply is connected to the power supply interface 74, the MP1584 of the 5V power supply circuit 71 is reduced to 5V to provide power for the amplifier circuit, and then the LM1117 (3.3V) of the 3.3V power supply circuit 72 is reduced to 3.3V for the microcontroller 4 and OLED display The screen 6 is used, and the LM1117 (1.2V) of the 1.2V power supply circuit 73 provides a 1.2V voltage for the Hall sensor 1 (HW108A). The 16 Hall sensors 1 on the panel are installed on the same level and arranged in a straight line and facing the ground, so as to reduce assembly errors as much as possible so as not to affect the data accuracy of the sensors. The optimal distance between two adjacent Hall sensors is 1cm; the corresponding The layout of the 16-way signal amplifier c...

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Abstract

The invention provides a magnetic navigation sensor system and a control method thereof. The magnetic navigation sensor system is characterized by comprising connected signal acquisition modules and amicrocomputer, wherein the signal acquisition module comprises a 16 channel signal acquisition unit; each channel of the signal acquisition unit comprises connected Hall sensors and an amplificationcircuit; the 16 channel Hall sensors are located on the same plane and are arranged in a straight line and face the ground; each Hall sensor, the amplifying circuit and the microcomputer are separately powered by power supply modules; the Hall sensor is connected with a temperature compensation circuit; the microcomputer comprises a digital-to-analog converter and an analog-to-digital converter; and the microcomputer is connected with a key input device and a display screen, and is connected with a AGV main controller through a serial port and / or a CAN bus. The temperature compensation methodadopted by the invention has a simple structure and a good effect, the amplification circuit is superior in performance, and the problems such as temperature drift and noise interference are well solved by means of calculation and weight filter of voltage difference values.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0263
Inventor 周牡丹高凤强朱景涛王荦晏颜雅雯戴梁亮林胜袁
Owner XIAMEN UNIV TAN KAH KEE COLLEGE
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