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A workpiece positioning method and positioning system

A positioning method and workpiece technology, applied in neural learning methods, computer components, instruments, etc., can solve the problems of decreased accuracy, low accuracy, complex electromagnetic environment, etc., and achieve the effect of improving positioning accuracy

Inactive Publication Date: 2018-12-07
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] However, there are many parts in the mold production and processing workshop, and the electromagnetic environment is complex. When the above methods are used for the positioning of the mold processing workshop, the accuracy is not high. As time goes by, due to the drift and change of the intensity information, the accuracy will decrease.

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  • A workpiece positioning method and positioning system
  • A workpiece positioning method and positioning system
  • A workpiece positioning method and positioning system

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0040] refer to Figure 1 to Figure 5 , a workpiece positioning method is characterized in that, comprising the following steps:

[0041] 1) The construction of the positioning model specifically includes the following sub-steps:

[0042] 1.1) According to the reading and writing distance of the UHF RFID reader, the area of ​​the processing workshop is divided into multiple monitoring areas fo...

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Abstract

The invention discloses a workpiece positioning method and positioning system. The positioning method comprises the following steps of 1) construction of a positioning model: the positioning model is acquired through RSSI value sampling and artificial neural network training; and 2) positioning of an ultrahigh frequency RFID tag to be positioned: 2.1) a workpiece enters the grid of a monitoring area, and the monitoring area in which the ultrahigh frequency RFID tag to be positioned is arranged is determined according to the number and position distribution of ultrahigh frequency RFID reader-writers; 2.3) an RSSI value is acquired and inputted to the positioning mode, and the corresponding grid position coordinates of the ultrahigh frequency RFID tag to be positioned are outputted; and 2.4) correctness of the position coordinates of the ultrahigh frequency RFID tag to be positioned are inspected. The positioning system comprises an initialization subsystem, a positioning model management subsystem and a positioning subsystem. The positioning model is established by adopting an artificial neural network so that positioning precision is high, updating is performed, and thus drifting and decreasing of positioning precision along with time can be solved.

Description

technical field [0001] The invention belongs to the technical field of workpiece positioning, and more specifically relates to a workpiece positioning method and a positioning system. Background technique [0002] With the continuous maturity of IoT technology, processing and manufacturing industries, such as mold manufacturing, have also begun to try to apply IoT technology. In the application process of IoT technology, the positioning of workpieces is one of the most basic requirements. The processing workshop environment of mold manufacturing enterprises can be roughly divided into two categories, one is the processing equipment area, and the other is the area with less processing equipment and a larger area, such as the mold assembly area, mold testing area and mold repairing area Wait. For the processing equipment area, each processing equipment is bound to the positioning equipment to realize the positioning of the workpiece. For larger areas such as the mold assemb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00G06N3/08
CPCG06K17/0029G06N3/08
Inventor 郑志镇李建军
Owner HUAZHONG UNIV OF SCI & TECH
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