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A RFID-based multi-task positioning method for AGV

A positioning method and multi-task technology, applied in the field of measurement and automatic control, can solve problems such as falling off and errors, and achieve the effect of simple changes

Active Publication Date: 2017-05-03
CHENGDU SIWI HIGH TECH IND GARDEN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If a road sign falls off due to a forklift or other means, the relative positioning logic of the AGV's road sign will be completely wrong, and this phenomenon often happens in the machining workshop and assembly workshop

Method used

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  • A RFID-based multi-task positioning method for AGV

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Embodiment Construction

[0023] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] Such as figure 1 Shown, a kind of RFID-based AGV multi-task positioning method, it comprises the following steps:

[0025] S1, write the card, and uniquely number each road sign radio frequency card, that is, write a digital ID in the radio frequency card sector to realize the unique number of the radio frequency card;

[0026] S2, task association, plan the corresponding path according to the task of AGV, and then write the function code corresponding to each station on the path into the radio frequency card;

[0027] S3, task distribution, the function code described in step S2 and its corresponding ID are sent to the controller, and the controller stores the function code in the space of the EEPROM divided in advance according to...

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Abstract

The invention discloses a RFID (Radio Frequency Identification)-based AGV (Automatic Guided Vehicle) multi-task positioning method. The method comprises the following steps: card writing: carrying out unique numbering on each guidepost radio frequency card; task association: according to an AGV task, planning a corresponding path, and writing a function code corresponding to each station on the path into the radio frequency card; task distribution: sending the function code in the step 2 and the corresponding ID of the function code to a controller, storing the function code into EEPOM (Electrically Erasable Programmable Read-Only Memory) space which is distributed in advance according to a corresponding task number by the controller, and recording and storing by utilizing an address variable; and task guidepost matching: copying a task list of the task number disclosed by the EEPOM space to a SRAM (Static Random Access Memory) temporary task buffer area, inquiring the guidepost number of the radio frequency card in fixed time when the AGV operates, uniting the guidepost number and the task number after the guidepost number is obtained, finding a unique function code matched with a set matching algorithm according to the set matching algorithm in the task buffer area, and finally finishing setting action according to the function code.

Description

technical field [0001] The invention relates to the field of measurement and automatic control, in particular to an RFID-based AGV multi-task positioning method. Background technique [0002] RFID (Radio Frequency Identification) radio frequency identification technology, including card readers and radio frequency cards, now AGV uses passive radio frequency card positioning. First, the card reader sends the ISO14443-3 standard 13.56MHz electromagnetic wave to the radio frequency card through the antenna, and the radio frequency card antenna induces a current to make the radio frequency card work normally, and then sends it to the card reader in the form of transmission. [0003] RFID radio frequency identification technology is currently widely used in the Internet of Things, mainly for positioning and identification. At present, AGV (automatic guided vehicle) has become an important equipment in intelligent manufacturing, advanced logistics and digital factories. It plays ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00G05D1/02
Inventor 包壁桢肖骥陈建华左斌
Owner CHENGDU SIWI HIGH TECH IND GARDEN
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