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RFID-based automatic trolley guiding method and system

A technology of automatic trolley and RFID tag, which is applied in the field of RFID-based automatic trolley guidance method and system, can solve the problems of high cost, high maintenance cost, and high AGV cost, and achieve good technical effects

Inactive Publication Date: 2015-04-29
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used AGV in China mainly adopts the electromagnetic guidance method. This guidance method belongs to the traditional guidance method. The technology is relatively mature. The cost of AGV itself is low and the work is reliable. Its disadvantage is that it needs to bury cables on the surface of the running line. Long construction time, high cost, difficult to change the route
[0004] Compared with the electromagnetic guidance method, the new laser guidance method has the advantages of automatic detection, automatic addressing, high parking precision, high degree of intelligence, and strong flexibility. The disadvantage is that the cost of AGV is too high and the maintenance cost is large

Method used

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  • RFID-based automatic trolley guiding method and system

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Experimental program
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Embodiment 1

[0033] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide an RFID-based AGV magnetic guidance method and device, using RFID technology to realize the positioning and guidance of key points in the motion trajectory, and assisting the use of magnetic sensors to realize automatic guidance. The motion control of the leading car adopts the task control method to realize the automatic driving function.

[0034] Technical scheme of the present invention is:

[0035] Lay magnetic strips on the path where the automatic trolley AGV runs, and affix RFID tags at key points (such as: AGV needs to stop, turn left, swim and turn around, etc.), and install magnetic sensors and RFID card readers on the AGV, AGV The track is tracked by the magnetic sensor. The sensor collects the magnetic signal generated by the magnetic strip of the current path, and transmits the signal to the main control unit. After the main control unit judges and processes, ...

Embodiment 2

[0049] An RFID-based automatic trolley guidance method, comprising:

[0050] Step 1: Set an RFID tag at the bifurcation point of the running path of the automatic trolley, and the RFID tag contains the guidance information of the bifurcation point;

[0051] Step 2: An RFID card reader is installed on the automatic trolley;

[0052] Step 3: When the automatic car runs to the bifurcation point of the running path,

[0053] The RFID card reader actively reads the RFID tag, and transmits the guide information in the RFID tag to the main control unit, and the main control unit controls the drive unit of the trolley according to the guide information, so that the automatic trolley follows the guide Citation information campaign.

[0054] Further, it is preferred that a magnetic sensor is also provided on the automatic trolley; a magnetic strip or other magnetic devices are also provided on the running path of the automatic trolley; the magnetic sensor actively collects the magnetic ...

Embodiment 3

[0060] Such as figure 2 Shown, a kind of automatic trolley specifically comprises:

[0061] The trolley body has a driving wheel and a passive wheel on the trolley body, the driving wheel is connected to the deceleration servo motor and the drive unit, and the deceleration servo motor and the drive unit are connected to the main control unit, and an RFID card reader is also provided. The RFID card reader is connected to the main control unit, and when the automatic trolley runs to the bifurcation point of the running path, the RFID card reader reads the RFID tag located at the bifurcation point of the running path, and The guide information in the RFID tag is transmitted to the main control unit, and the main control unit controls the driving unit according to the guide information, so that the automatic trolley moves according to the guide information.

[0062] Further, it is preferred that two obstacle avoidance sensors are respectively provided at the front and rear of th...

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Abstract

The invention discloses an RFID-based automatic trolley guiding method and system. The method comprises the steps that 1, an RFID tag is arranged at the bifurcation of an operating path of an automatic trolley, and the RFID tag contains guiding information of the bifurcation; 2, an RFID card reader is arranged on the automobile trolley; 3, when the automatic trolley reaches the bifurcation of the operating path, the RFID card reader automatically reads the RFID tag, the guiding information contained inside the RFID tag is transmitted to a master control unit, and the master control unit controls a driving unit of the trolley according to the guiding information, so that the automatic trolley moves according to the guiding information.

Description

technical field [0001] The invention belongs to the field of photoelectric automation, and relates to an RFID-based automatic trolley guidance method and system, which can realize logistics, transportation and other automation. Background technique [0002] Automatic Guided Vehicle (AGV) is an unmanned automatic transport vehicle that can be widely used in warehouses, docks, production workshops and other places. It is equipped with automatic guidance devices such as electromagnetic or optical, and can follow the prescribed guidance Road driving, transport vehicle with installation protection and various transplanting functions. One of its key technologies is to realize automatic positioning and guidance. [0003] At present, the commonly used AGV in China mainly adopts the electromagnetic guidance method. This guidance method belongs to the traditional guidance method. The technology is relatively mature. The cost of AGV itself is low and the work is reliable. Its disadvan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
Inventor 陈红斌杜艳平高振清
Owner BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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