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An information fusion positioning system and method based on RFID and vision

A positioning method and fusion positioning technology, applied in two-dimensional position/channel control and other directions, can solve the problems of inability to meet complex paths, low flexibility and accuracy, and large workload, and achieve accurate, fast and stable autonomous navigation, avoiding Loss of information, the effect of promoting efficient progress

Inactive Publication Date: 2017-10-10
HARBIN ZHONGDE HECHUANG INTELLIGENT EQUIP
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AI Technical Summary

Problems solved by technology

However, magnetic navigation is complicated to install on the ground, with a large workload, low flexibility and accuracy, and cannot meet the needs of complex paths; laser navigation does not need to lead to the route, but requires a relatively open path to realize navigation. For storage systems The occlusion of objects will affect the navigation accuracy; the visual navigation operation is relatively simple, but it is difficult to accurately locate the position

Method used

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  • An information fusion positioning system and method based on RFID and vision
  • An information fusion positioning system and method based on RFID and vision
  • An information fusion positioning system and method based on RFID and vision

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Such as figure 1 As shown, the actual test warehouse setting of this RFID and vision-based information fusion positioning system: lay a 20mm wide red path marking line on the ground of the test warehouse, and install an RFID tag every 2m on the path line. This system uses passive passive tags.

[0039] Such as figure 2 , image 3 As shown, the hardware structure of the RFID and vision-based information fusion positioning system includes: RFID positioning unit, CMOS image acquisition unit and information processing unit. The RFID positioning unit includes an RFID reader 2 and an RFID tag; the CMOS image acquisition unit includes a CMOS camera 1 and a lighting circuit 2; the information processing unit includes a DM642 processing chip, a serial communication interface and a DSP core processing chip.

[0040] In the inventive system, both the CM...

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Abstract

The invention discloses an information fusion positioning system and method based on RFID and vision. When the system performs storage and carrying tasks, it obtains path information through a camera installed at the bottom of a mobile robot, and obtains key point information through an RFID radio frequency device at the bottom of the robot. Segment the image based on color, convert the color space from RGB to YCbCr color space, and perform threshold segmentation on the red chroma component; the processor checks the image based on the segmented image and the positioning signal read by the RFID reader Whether the running path of the robot is accurate, the navigation and motion control of the mobile robot is carried out to realize the accurate, fast and stable autonomous navigation of the mobile robot, without losing its direction, without colliding with other obstacles, and finally reaching the destination smoothly.

Description

technical field [0001] The invention relates to an information fusion positioning system and method based on RFID and vision. Background technique [0002] The characteristic of the intelligent warehousing system is that the logistics transportation in the warehouse does not require or only requires a small amount of manpower, and most of the transportation operations are completed by robots, so that the robot plays the role of logistics transfer in the intelligent warehousing system; the robot is in the process of carrying out the delivery of goods How to accurately identify the path and locate the key path points has become a key technology. [0003] At present, the commonly used methods include magnetic navigation, laser navigation, visual navigation, etc., but problems such as accuracy, stability, non-bias, and real-time performance still need to be solved urgently. However, magnetic navigation is complicated to install on the ground, with a large workload, low flexibil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02
Inventor 宋锐荣学文马昕李贻斌钟声
Owner HARBIN ZHONGDE HECHUANG INTELLIGENT EQUIP
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