Automatic cargo scanning cabinet

Abstract

The invention belongs to the technical field of radio frequency identification, and relates to an automatic cargo scanning cabinet, particularly to an automatic batch cargo scanning cabinet applying an RFID technology. The automatic cargo scanning cabinet comprises a cabinet body, and transmission devices, antenna supports, antennas, a driving device and limiting sensors are further arranged inside the cabinet body. According to the automatic cargo scanning cabinet, the antenna supports continuously perform front-and-back reciprocating motion under the driving of a deceleration motor and under the action of the limiting sensors, and the motion range is limited between a first limiting sensor and a second limiting sensor, so that the antennas can perform reciprocating motion along with the antenna supports, the coverage area of a radio-frequency signal emitted by the antennas inside the antenna supports is wider, scanning dead zones can be eliminated, and omissive scanning of labels is prevented.

Description

technical field [0001] The invention belongs to the technical field of radio frequency identification and relates to an automatic scanning cabinet for goods, in particular to an automatic scanning cabinet for bulk goods using RFID technology. Background technique [0002] RFID (Radio Frequency Identification) tags are technologies that read information on items and products through IC chips and short-range RF wireless communication. [0003] RFID tags use short-range RF wireless communication in UHF and VHF frequency bands, which can implement non-contact identification and can obtain information accurately in mixed or unclean environments, and are not affected by weather, and can penetrate non-metallic substances Read information. [0004] For example, the utility model patent with the publication number CN205080574U discloses a batch of goods entering and leaving the warehouse using RFID technology, including a signal shielding unit, an information processing unit, a tran...

AI Technical Summary

Problems solved by technology

[0005] The key to RFID identification is to read the tag information by emitting electromagnetic waves through the antenna installed in the RFID reader, but the antenna of the RFID tag is directional. Experiments have proved that the items attached to the tags that need to be read statistically are often Irregular placement leads to irregularity in the direction distribution of the tags on the items. If the reader uses a fixed antenna to identify a batch of irregularly placed items with RFID tags at a single angle, it will cause leakage. The problem of recognition, resulting in the number of recognized tags is less than the actual number of tags, that is, there is a blind spot for recognition

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