A method for reading batch logistics labels and a logistics label system

A logistics label and batch technology, which is applied in the field of batch logistics label reading method and logistics label system, can solve the problems of low efficiency, long process of reading batch logistics label information, batch logistics label information signal conflicts, etc., and achieve reduction The number of active and the effect of resolving wireless signal conflicts

Active Publication Date: 2021-09-28
SF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Signal conflict occurs when batch logistics label information is read
[0005] (2) The process of reading batch logistics label information is long and the efficiency is low

Method used

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  • A method for reading batch logistics labels and a logistics label system
  • A method for reading batch logistics labels and a logistics label system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The connection structure of the logistics label is as follows figure 1 shown.

[0044] The controller is the master device, and the logistics tag is the slave device. The controller and the logistics tag use the Sub-1GHz wireless signal of the shared channel to communicate. The logistics label has the functions of wireless signal sending and receiving and monitoring.

[0045] This embodiment provides a method for reading batch logistics labels, including the following steps:

[0046] S1. The logistics label receives a read instruction sent by the controller, the read instruction includes a maximum value of a random number, and generates a random number not greater than the maximum value.

[0047] Specifically:

[0048] (1) All logistics tags enter the state of receiving instructions after startup.

[0049] (2) The controller initiates a read instruction, which includes a maximum value of a random number whose size is approximately equal to the number of logistics l...

Embodiment 2

[0075] The features of this embodiment that are the same as those of Embodiment 1 will not be described in detail. The features of this embodiment that are different from Embodiment 1 are:

[0076] The time to start monitoring is random number × unit time (for example, 1.5 milliseconds).

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Abstract

The invention relates to a method for reading batch logistics labels and a logistics label system. Receive the read command sent by the controller, generate a random number not greater than the maximum value; monitor the wireless signal, if the monitoring of the logistics tag signal ends and no valid wireless signal is received, send a response signal; other logistics tags monitor The response signal enters the state of receiving the response confirmation; the logistics label that sends the response signal receives the response confirmation signal and exits the reading instruction process; the logistics label that has not sent the response signal repeats the steps until all the logistics labels send the response signal and receive the controller Acknowledgment signal sent. The invention adopts the technology of wireless signal monitoring to monitor whether the surrounding wireless signals are valid. Using random numbers to disperse the wireless signal monitoring time can effectively control the probability of conflicts caused by wireless signals sent by logistics electronic tags. The wireless signal response confirmation mechanism is adopted to effectively reduce the active number of logistics electronic tags.

Description

technical field [0001] The invention belongs to the field of logistics, and in particular relates to a method for reading batch logistics labels and a logistics label system. Background technique [0002] As e-commerce penetrates into people's daily life, more and more people purchase daily necessities through online shopping, and the use of logistics labels for logistics management is becoming more and more common. When multiple logistics tags communicate with the reader, the wireless signals interfere with each other and cause data collisions. How to quickly and effectively read the information in the batch logistics labels has become a difficult problem. Common methods include enumeration and signal anti-collision algorithms. The enumeration method is inefficient and requires a lengthy process when the tag ID number is long. The signal anti-collision algorithm is relatively complicated, and it is generally difficult to master, and when the number of logistics labels is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
CPCG06K7/10099
Inventor 刘虎
Owner SF TECH
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