A data update method for electronic paper passive tags

Abstract

The invention specifically discloses a method for updating data of electronic paper passive labels. The background control system detects that there is data update information in the warehouse material management system; the data update information is synchronized to the database of the background control system; The transmission sends a wake-up frame to the wireless repeater, and packages the data update information and the target passive tag ID into an update packet and sends it to the wireless repeater; the passive tag that needs to perform relay transmission is woken up and accepts the update The data packet and the update data packet are forwarded to the target passive tag; after receiving the update data packet, the target passive tag refreshes the electronic paper screen to complete the information update. The technical effect of the present invention is that the background control system is overall responsible for data update, the tag group is in an energy-saving dormant state, and only when transmission and data update are required, the tags corresponding to the link wake up to work.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and specifically discloses a data updating method of an electronic paper passive label. Background technique [0002] In the current warehousing / warehouse management, the goods are stored in different areas, different containers, different shelves and positions according to classification. The warehouse keeper must operate the incoming materials according to the specified storage standards and locations, and quickly find the storage location for the outgoing materials, and record the detailed flow of access. When the warehouse reaches each critical time point, it is necessary to perform an inventory operation on the warehouse, that is, to check whether the materials in the warehouse are consistent with the records. For the convenience of operation, each shelf will be marked in different positions, shelf labels will be affixed, and key information such as the category, name, weight...

AI Technical Summary

Problems solved by technology

1. There is currently no "passive" design scheme for electronic tags with screen display and support for distributed communication. Power supply or information transmission increases the cost of wiring and brings certain difficulties to the installation, transformation, and replacement of tags.

2. The electronic label adopts battery-powered technology. It takes a lot of labor to replace the battery in 3 to 6 months or even a shorter period of time, which is not ideal in terms of cost economy and operability.

3. Electronic labels generally use LED / LCD electronic screens. Since the screen is self-illuminating and the smooth surface glass causes reflections, the information inside is not easy to be recognized by machines. For example, it is difficult for a two-dimensional code scanner to decode and read the displayed two-dimensional code

4. Most of the electronic tags using wireless technology need to be networked with wireless APs (data centralized transmitters) in a star structure. Each electronic tag needs to be covered by wireless AP signals, so several wireless APs need to be deployed in the warehouse nodes, making system cost and installation problematic

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